共用题干Sunbath and Skin CancerIn the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin. Which of the following comes first as a possible damage by UV radiation?A: Sunburn.B: The loss of skin elasticity.C: Dryness of epidermis.D: The deterioration of dermis.
共用题干
Sunbath and Skin Cancer
In the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.
With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.
Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.
Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.
Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin.
Sunbath and Skin Cancer
In the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.
With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.
Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.
Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.
Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin.
Which of the following comes first as a possible damage by UV radiation?
A: Sunburn.
B: The loss of skin elasticity.
C: Dryness of epidermis.
D: The deterioration of dermis.
A: Sunburn.
B: The loss of skin elasticity.
C: Dryness of epidermis.
D: The deterioration of dermis.
参考解析
解析：在读题时应抓住“over-exposure”一词，在第二段的最后一句“… and almost all of them can be blamed on over-exposure to the sun. ” A项“皱纹”和D项“健康美”都是一般的暴硒引起的而非过度暴硒引起。C项“不惜一切代价”跟过度暴硒没有因果关系。
由第三段可知，皮肤癌即使被治愈，但患者的容貌有可能受损，而导致皮肤癌的正是太阳光，因此可以推断人们应该躲避的是阳光（太阳），而不是皮肤癌。同时，原文是“ treat deity with a good deal of awe（敬畏）”一般是时待神灵才是“满怀敬畏”，而西方传说中太阳也是一位神灵，即太阳神。综上所述，可以推断本题选C。
在文章第三段的第四句“Sunburn , of course , is the initial hazard posed by UV radia-tion.”皮肤变黑实际上是红外线辐射对人体产生的最初危害。先是硒黑，接下来才是真皮受损、失去弹性，损伤表皮。
答案在第四段的第三、第四句“Enzymes(酶) work constantly to rearrange the DNA into proper sequence,but with repeated UV exposure,the repair process may eventually break down. Then the mutant（变异的）DNA may produce a colony of cancer cells.”长时间的暴硒造成修复过程崩溃，并有可能导致癌细胞产生。
其实只要抓住“Dematologists（皮肤科医生）recommend”“avoiding the sun”“ sun screen”“block out”等关键词就能理解最后一段讨论如何预防皮肤癌。
由第三段可知，皮肤癌即使被治愈，但患者的容貌有可能受损，而导致皮肤癌的正是太阳光，因此可以推断人们应该躲避的是阳光（太阳），而不是皮肤癌。同时，原文是“ treat deity with a good deal of awe（敬畏）”一般是时待神灵才是“满怀敬畏”，而西方传说中太阳也是一位神灵，即太阳神。综上所述，可以推断本题选C。
在文章第三段的第四句“Sunburn , of course , is the initial hazard posed by UV radia-tion.”皮肤变黑实际上是红外线辐射对人体产生的最初危害。先是硒黑，接下来才是真皮受损、失去弹性，损伤表皮。
答案在第四段的第三、第四句“Enzymes(酶) work constantly to rearrange the DNA into proper sequence,but with repeated UV exposure,the repair process may eventually break down. Then the mutant（变异的）DNA may produce a colony of cancer cells.”长时间的暴硒造成修复过程崩溃，并有可能导致癌细胞产生。
其实只要抓住“Dematologists（皮肤科医生）recommend”“avoiding the sun”“ sun screen”“block out”等关键词就能理解最后一段讨论如何预防皮肤癌。
相关考题：
Which of the following is true about the motion of the moon?[A] The moon and the sun are moving in the same plane.[B] The moon revolved along the ecliptic.[C] The moon moves faster than the sun.[D] The position of the moon can be found changed in an hour's time.
It is a common sense that the earth is ( ). A、one of the suns’ planetsB、one of the sun's planetsC、one of the sun’s planetD、one of the suns’ planet’s
Neap tides occur ______.A.at the start of spring, when the Sun is nearly over the equatorB.only when the Sun and Moon are on the same sides of the Earth and are nearly in lineC.when the Sun and Moon are at approximately 90°to each other, as seen from the EarthD.when the Sun , Moon, and Earth are nearly in line, regardless of alignment order
Which of the following statements in supported by the passage?A．The sun shines constantly and gives out the same amount of energy every year．B．The cause of the sun’S fluctuations is its loss of energy with each passing yearC．It is sure that the energy sent out by the sun will drop when more sun spots appear．D．Fluctuations in weather pattems are the results of the pull of gravity．
共用题干Skin CancerMelanoma（黑素瘤）,the deadliest kind of skin cancer,is now the most common cancer in__________(51) British women,the country's leading cancer organization said Wednesday.Skin cancer has__________(52) cervical（子宫颈的）cancer as the top cancer striking women in their 20s,according to the latest data from Cancer Research United Kingdom.The trend is particularly_________(53)since younger people are not generally those most susceptible （易患的）to melanoma. Rates of skin cancer are _________( 54 ) highest in people over age 75.But experts worry that increasing numbers of younger people being diagnosed with skin cancer could be the_________(55)of a dangerous trend.Women in their 20s make_________(56)a small percentage of all patients diagnosed with melanoma in Britain,but nearly a third of all cases occur in people younger than 50.Based on current numbers,Cancer Research UK predicts that melanoma will become the fourth _________(57)common cancer for men and women of all ages by 2024,and that cases will jump from about 9,000 a year to more than 15,500.Cancer experts_________(58)the rising number of skin cancer cases largely to the surge in people using tanning salons."Spending time on sun beds is just as_________(59)as staying out too long in the sun,"said Caroline Cerny of Cancer Research UK. The organization is starting a SunSmart_________(60)to warn Britons of the dangers of being too bronzed."The intensity of ultraviolet rays in some sun beds can be more than 10_________(61)stronger than themid-day sun,"Cerny said.In the United States,several states require parental approval________(62)minors can use tanning salons.Wisconsin bans people 16 and________(63)from using tanning beds,and others ban children under 14.At least 29 states have regulations governing minors'use of tanning salons.In the U.K.,Scottish politicians passed legislation banning those under 1 8 from using tanning beds, though it hasn't yet been implemented.There are no plans for________(64)in the rest of the U.K.The World Health Organization has previously recommended that tanning beds be regulated because of their potential to damage DNA in the skin.Experts said most deadly skin cancers could be________(65)if people took the proper precautions when in the sun and avoided tanning beds._________(63)A:lessB:beneathC:lowerD:under
共用题干Sunbath and Skin CancerIn the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin. The underlined word“deity”in the third paragraph refers to________.A: something mysteriousB: the skin cancerC: the sunD:over-exposure to the sun
共用题干Sunbath and Skin CancerIn the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin. The last paragraph of the passage mainly discusses_______.A: the treatment of the skin cancerB: the prevention of the skin cancerC: the parts of the body where cancer is most likely to developD: the lotions that work best in fighting against the skin cancer
共用题干Sunbath and Skin CancerIn the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin. According to the passage,over-exposure to the sun may result in______A: the wrinkles that cannot be seenB: the skin cancerC: all kinds of sacrificesD: healthful beauty
共用题干Sunbath and Skin CancerIn the summer,millions of Americans will offer up their bodies to the sun rays.A tan mndi-cates health and beauty,and most sun worshippers will sacrifice a lot to achieve it,including themselves.With each hour, the sun's ultraviolet radiation (紫外线）produces irreversible（不可逆的） damage,hastening the development of unsightly wrinkles.And with each year on the beach or roof-top,the sunbather increases his risk of getting skin cancer. Skin cancer is by far the most common form of cancer. An estimated 400,000 new cases will be detected this year in the United States, and almost all of them can be blamed on over-exposure to the sun.Fortunately,most of these cancers are highly curable .But they can he disfiguring and take time to treat. For that reason,sun worshippers should treat deity with a good deal of awe（敬畏）. Sunburn,of course,is the initial hazard posed by UV radiation.Prolonged exposure to UV,howev-er , interferes with the production of collagen fibers（胶原纤维）in the dermis（真皮层）, causing the skin to lose elasticity（弹性）and creating premature wrinkles. Further deterioration（恶化）of the dermis deprives the epidermis（表皮层）of nutrition and causes it to become thin and dry.Cancer is UV's final result.Shortwave radiant energy,especially from the UV-B band,breaks the strands（股、缕）of DNA. Enzymes（酶）work constantly to rearrange the DNA into proper Se-quence,but with repeated UV exposure,the repair process may eventually break down.Then the mutant（变异的）DNA may produce a colony of cancer cells. But skin cancer may be avoided with a good dose of common sense.People with fair skin and blue eyes who burn easily stand the high-est risk .Special danger spots are the parts of the body most constantly exposed to the sun,such as the cheeks , nose , lower lip and the ears. People who have already developed precancerous（癌变前的）lesions（伤害）or had one skin-cancer growth stand a greatly increased chance of developing others.Dermatologists（皮肤科医生）recommend avoiding the sun when it is most intense between 11 a.m.and 3 p.m.Anyone who insists on sunbathing should use a good sun screen.These lotions and salves（药膏）contain chemicals that block out the burning UVB radiation while permitting the tanning rays to reach the skin.What may be the worst result after the repair process of the DNA finally fail?A:Shortwave radiant energy breaks the strands of the DNA.B:The mutant DNA may produce a colony of cancer cells.C: Enzymes work to rearrange the DNA into a new order.D:The patient is exposed to UV from time to time.
Passage ThreeWhenyou stretch out in the sun you can do one of the three things:you can use no suntan oil,an ordinary sun tan oil;or Bergasol.If you don′t use any sun tan oil when you′re in the sun,you will burn surprisinglyquickly.If you use an ordinary sun tan oil,you will protectyour skin to a lesser or greater degree.How much protection depends on the"protection-factor number"on the bottle.Some oils block out so manyof the sun′s rays and you can stay in the sun all day without burning but youwon′t go very brown,either.Bergasol will protect your skin like an ordinary sun tan oil.It also has a tan acceleratorthat speeds up the rate at which the sun activates the skin cells that producemelanin(黑色素).It is melanin that gives the skin itsbrown colour.Bergasol enables you to go brown faster,am as the days pass thedifference will become more obvious.Unfortunately,this special formulation isn′tCheap to prepare.So Bergasol is rather more expensive than ordinary sun tanoil.However,the price looks more attractive as you do.Bergasoi?It makes you go brown fasterProtection Many people imagine that"cover-up"means you don′t get a tan.Nothing to show for yourholiday.Not so.With"cover-up",you can get brown if you want to.The point of"cover-up"is to protect your skin from the harmful rays of the sunwhich,according to the experts,make your skinlook older.That′s what Solex Cover-up is allabout--protection for your skin.It has a Sun Protection Factor 8,which makesit suitable for anyone.Find out how it works for you by consulting the SolexSun Chart.On sale wherever Solex is.With Solex Cover-up,you can tan asslowly as you like.As gently as you like.And with much lesschance of peeling.Your tan will lookbetter.Your skin will stay young longer.Solex Gentle tan..,full protectionWhat is the most attractive feature ofSolex Cover-up?A.It helps one get a more beautiful tan.B.It is often on sale in supermarkets.C.It blocks out more sun's rays thanother oils.D.It helps one tan gradually and gently.
Passage ThreeWhenyou stretch out in the sun you can do one of the three things:you can use no suntan oil,an ordinary sun tan oil;or Bergasol.If you don′t use any sun tan oil when you′re in the sun,you will burn surprisinglyquickly.If you use an ordinary sun tan oil,you will protectyour skin to a lesser or greater degree.How much protection depends on the"protection-factor number"on the bottle.Some oils block out so manyof the sun′s rays and you can stay in the sun all day without burning but youwon′t go very brown,either.Bergasol will protect your skin like an ordinary sun tan oil.It also has a tan acceleratorthat speeds up the rate at which the sun activates the skin cells that producemelanin(黑色素).It is melanin that gives the skin itsbrown colour.Bergasol enables you to go brown faster,am as the days pass thedifference will become more obvious.Unfortunately,this special formulation isn′tCheap to prepare.So Bergasol is rather more expensive than ordinary sun tanoil.However,the price looks more attractive as you do.Bergasoi?It makes you go brown fasterProtection Many people imagine that"cover-up"means you don′t get a tan.Nothing to show for yourholiday.Not so.With"cover-up",you can get brown if you want to.The point of"cover-up"is to protect your skin from the harmful rays of the sunwhich,according to the experts,make your skinlook older.That′s what Solex Cover-up is allabout--protection for your skin.It has a Sun Protection Factor 8,which makesit suitable for anyone.Find out how it works for you by consulting the SolexSun Chart.On sale wherever Solex is.With Solex Cover-up,you can tan asslowly as you like.As gently as you like.And with much lesschance of peeling.Your tan will lookbetter.Your skin will stay young longer.Solex Gentle tan..,full protectionCompared with Solex,Bergasol__A.helps one go brown more quicklyB.better protects one's skinC.is more competitive in priceD.is a better sun tan oil
Passage ThreeWhenyou stretch out in the sun you can do one of the three things:you can use no suntan oil,an ordinary sun tan oil;or Bergasol.If you don′t use any sun tan oil when you′re in the sun,you will burn surprisinglyquickly.If you use an ordinary sun tan oil,you will protectyour skin to a lesser or greater degree.How much protection depends on the"protection-factor number"on the bottle.Some oils block out so manyof the sun′s rays and you can stay in the sun all day without burning but youwon′t go very brown,either.Bergasol will protect your skin like an ordinary sun tan oil.It also has a tan acceleratorthat speeds up the rate at which the sun activates the skin cells that producemelanin(黑色素).It is melanin that gives the skin itsbrown colour.Bergasol enables you to go brown faster,am as the days pass thedifference will become more obvious.Unfortunately,this special formulation isn′tCheap to prepare.So Bergasol is rather more expensive than ordinary sun tanoil.However,the price looks more attractive as you do.Bergasoi?It makes you go brown fasterProtection Many people imagine that"cover-up"means you don′t get a tan.Nothing to show for yourholiday.Not so.With"cover-up",you can get brown if you want to.The point of"cover-up"is to protect your skin from the harmful rays of the sunwhich,according to the experts,make your skinlook older.That′s what Solex Cover-up is allabout--protection for your skin.It has a Sun Protection Factor 8,which makesit suitable for anyone.Find out how it works for you by consulting the SolexSun Chart.On sale wherever Solex is.With Solex Cover-up,you can tan asslowly as you like.As gently as you like.And with much lesschance of peeling.Your tan will lookbetter.Your skin will stay young longer.Solex Gentle tan..,full protectionWhat can we learn from thesecond advertisement?A.It is easy to get a suntan in summer.B.Suntan is regarded as a sign ofprotection.C.Sunlight could make one look older.D.Everyone wants to get a suntan fromholiday.
Passage ThreeWhenyou stretch out in the sun you can do one of the three things:you can use no suntan oil,an ordinary sun tan oil;or Bergasol.If you don′t use any sun tan oil when you′re in the sun,you will burn surprisinglyquickly.If you use an ordinary sun tan oil,you will protectyour skin to a lesser or greater degree.How much protection depends on the"protection-factor number"on the bottle.Some oils block out so manyof the sun′s rays and you can stay in the sun all day without burning but youwon′t go very brown,either.Bergasol will protect your skin like an ordinary sun tan oil.It also has a tan acceleratorthat speeds up the rate at which the sun activates the skin cells that producemelanin(黑色素).It is melanin that gives the skin itsbrown colour.Bergasol enables you to go brown faster,am as the days pass thedifference will become more obvious.Unfortunately,this special formulation isn′tCheap to prepare.So Bergasol is rather more expensive than ordinary sun tanoil.However,the price looks more attractive as you do.Bergasoi?It makes you go brown fasterProtection Many people imagine that"cover-up"means you don′t get a tan.Nothing to show for yourholiday.Not so.With"cover-up",you can get brown if you want to.The point of"cover-up"is to protect your skin from the harmful rays of the sunwhich,according to the experts,make your skinlook older.That′s what Solex Cover-up is allabout--protection for your skin.It has a Sun Protection Factor 8,which makesit suitable for anyone.Find out how it works for you by consulting the SolexSun Chart.On sale wherever Solex is.With Solex Cover-up,you can tan asslowly as you like.As gently as you like.And with much lesschance of peeling.Your tan will lookbetter.Your skin will stay young longer.Solex Gentle tan..,full protectionWhy is Solex suitable for everyone?A.Its price is more attractive.B.It can be used to relieve sunburn.C.It can make the skin cells more active.D.It has a mild protection factor.
共用题干Modern Sun Worshippers People travel for a lot of reasons.Some tourists go to see battlefields or religious shrines.Others are looking for culture,or simply want to have their pictures taken in front of famous places.But most European tourists are looking for a sunny beach to lie on. Northern Europeans are willing to pay a lot of money and put up with a lot of inconveniences for the sun because they have so little of it.Residents of cities like London,Copenhagen,and Amsterdam spend a lot of their winter in the dark because the days are so short,and much of the rest of the year in the rain.This is the reason why the Mediterranean has always attracted them.Every summer,more than 25 million people travel to Mediterranean resorts and beaches for their vacation.They all come for the same reason:sun! The huge crowds mean lots of money for the economies of Mediterranean countries.Italy's30,000 hotels are booked solid every summer.And 13 million people camp out on French beaches,parks,and roadsides.Spain's long sandy coastline attracts more people than anywhere else.37 million tourists visit yearly,or one tourist for every person living in Spain. But there are signs that the area is getting more tourism than it can handle.The Mediterranean is already one of the most polluted seas on earth.And with increased tourism,it's getting worse.The French can't figure out what to do with all the garbage left by campers around St.Tropez.And in many places, swimming is dangerous because of pollution. None of this,however,is-spoiling anyone's fun.The Mediterranean gets more popular every year with tourists.Obviously,they don't go there for clean water and solitude.They tolerate traffic jams and seem to like crowded beaches.They don't even mind the pollution.No matter how dirty the water is,the coastline still looks beautiful.And as long as the sun shines,it's still better than sitting in the cold rain in Berlin,Iondon,or Oslo.When people travel,they like to take pictures in front of famous places by themselves.A:Right B:WrongC:Not mentioned
共用题干Modern Sun Worshippers People travel for a lot of reasons.Some tourists go to see battlefields or religious shrines.Others are looking for culture,or simply want to have their pictures taken in front of famous places.But most European tourists are looking for a sunny beach to lie on. Northern Europeans are willing to pay a lot of money and put up with a lot of inconveniences for the sun because they have so little of it.Residents of cities like London,Copenhagen,and Amsterdam spend a lot of their winter in the dark because the days are so short,and much of the rest of the year in the rain.This is the reason why the Mediterranean has always attracted them.Every summer,more than 25 million people travel to Mediterranean resorts and beaches for their vacation.They all come for the same reason:sun! The huge crowds mean lots of money for the economies of Mediterranean countries.Italy's30,000 hotels are booked solid every summer.And 13 million people camp out on French beaches,parks,and roadsides.Spain's long sandy coastline attracts more people than anywhere else.37 million tourists visit yearly,or one tourist for every person living in Spain. But there are signs that the area is getting more tourism than it can handle.The Mediterranean is already one of the most polluted seas on earth.And with increased tourism,it's getting worse.The French can't figure out what to do with all the garbage left by campers around St.Tropez.And in many places, swimming is dangerous because of pollution. None of this,however,is-spoiling anyone's fun.The Mediterranean gets more popular every year with tourists.Obviously,they don't go there for clean water and solitude.They tolerate traffic jams and seem to like crowded beaches.They don't even mind the pollution.No matter how dirty the water is,the coastline still looks beautiful.And as long as the sun shines,it's still better than sitting in the cold rain in Berlin,Iondon,or Oslo.Cities like London,Copenhagen,and Amsterdam are not good cities because they lack places of historic interest and scenic beauty.A:Right B:Wrong C:Not mentioned
共用题干Modern Sun Worshippers People travel for a lot of reasons.Some tourists go to see battlefields or religious shrines.Others are looking for culture,or simply want to have their pictures taken in front of famous places.But most European tourists are looking for a sunny beach to lie on. Northern Europeans are willing to pay a lot of money and put up with a lot of inconveniences for the sun because they have so little of it.Residents of cities like London,Copenhagen,and Amsterdam spend a lot of their winter in the dark because the days are so short,and much of the rest of the year in the rain.This is the reason why the Mediterranean has always attracted them.Every summer,more than 25 million people travel to Mediterranean resorts and beaches for their vacation.They all come for the same reason:sun! The huge crowds mean lots of money for the economies of Mediterranean countries.Italy's30,000 hotels are booked solid every summer.And 13 million people camp out on French beaches,parks,and roadsides.Spain's long sandy coastline attracts more people than anywhere else.37 million tourists visit yearly,or one tourist for every person living in Spain. But there are signs that the area is getting more tourism than it can handle.The Mediterranean is already one of the most polluted seas on earth.And with increased tourism,it's getting worse.The French can't figure out what to do with all the garbage left by campers around St.Tropez.And in many places, swimming is dangerous because of pollution. None of this,however,is-spoiling anyone's fun.The Mediterranean gets more popular every year with tourists.Obviously,they don't go there for clean water and solitude.They tolerate traffic jams and seem to like crowded beaches.They don't even mind the pollution.No matter how dirty the water is,the coastline still looks beautiful.And as long as the sun shines,it's still better than sitting in the cold rain in Berlin,Iondon,or Oslo.Every summer,all of Italy's 30,000 hotels are booked by travelers.A:Right B:Wrong C:Not mentioned
共用题干Modern Sun Worshippers People travel for a lot of reasons.Some tourists go to see battlefields or religious shrines.Others are looking for culture,or simply want to have their pictures taken in front of famous places.But most European tourists are looking for a sunny beach to lie on. Northern Europeans are willing to pay a lot of money and put up with a lot of inconveniences for the sun because they have so little of it.Residents of cities like London,Copenhagen,and Amsterdam spend a lot of their winter in the dark because the days are so short,and much of the rest of the year in the rain.This is the reason why the Mediterranean has always attracted them.Every summer,more than 25 million people travel to Mediterranean resorts and beaches for their vacation.They all come for the same reason:sun! The huge crowds mean lots of money for the economies of Mediterranean countries.Italy's30,000 hotels are booked solid every summer.And 13 million people camp out on French beaches,parks,and roadsides.Spain's long sandy coastline attracts more people than anywhere else.37 million tourists visit yearly,or one tourist for every person living in Spain. But there are signs that the area is getting more tourism than it can handle.The Mediterranean is already one of the most polluted seas on earth.And with increased tourism,it's getting worse.The French can't figure out what to do with all the garbage left by campers around St.Tropez.And in many places, swimming is dangerous because of pollution. None of this,however,is-spoiling anyone's fun.The Mediterranean gets more popular every year with tourists.Obviously,they don't go there for clean water and solitude.They tolerate traffic jams and seem to like crowded beaches.They don't even mind the pollution.No matter how dirty the water is,the coastline still looks beautiful.And as long as the sun shines,it's still better than sitting in the cold rain in Berlin,Iondon,or Oslo.The latter half of the last sentence in Paragraph 3"or one tourist for every person living in Spain" means that every year,the number of tourists who visit Spain is almost the same as the people living in that country.A:Right B:Wrong C:Not mentioned
共用题干Early Ideas about the Universe1 Early man got his ideas about the universe by looking at the stars as you do.He observed carefully,and learned many things about the sun,the moon,and the stars.2 Suppose you were asked to collect evidence about the sun as early man did.You might go out morning after morning and see it come up in the east.Even on cloudy mornings,youwould observe that the darkness goes away and the world becomes light.You might not see the sun but would be sure it is there,because you notice that the earth warms up.As you continued,the sun climbs higher in the sky each day during part of the year. It stays in the sky longer. The earth gets warmer. Things begin to grow. It is spring and then summer.3 After a while the sun stays in the sky for shorter and shorter periods.Many plants begin to die.Leaves fall.Winter comes.Year after year this is repeated and you cannot tell exactly why it happens.But you realize that the sun seems to make the difference. Primitive（原始的）man felt that since the sun was so powerful it must be a god. It may seem silly to us now to worship（崇拜）a sun-god, but primitive man was right about the importance of the sun to life on earth.4 You have been told that the world is round.But suppose no one had ever taught you that the world was like a huge ball.Would you have ever thought of it yourself?You cannot see the curve（曲线）of the earth at once. You would have no idea of how big it was. That's why early man believed that the earth was small and flat.Such ideas appeared from the evidence they had.5 If you watch the stars night after night,you will see them rise and set.As you look at the sky,it is not difficult to imagine that you are in the center of a vast collection of twinkling（闪烁）lights. Some early astronomers（天文学家）believed the sky was a crystal shell or series of crystal shells,one inside the other. They believed this because that is what the night sky looked like.For many centuries,men believed that the earth was the center of the universe and that the sun,the moon,and the stars circled around it.Paragraph 2_________A:Early Ideas about the Sky and the StarsB:The Importance of the Sun to Life on EarthC:Primitive Knowledge of the MoonD:The Sun in Autumn and WinterE:Early Ideas about the EarthF:Collecting Evidence about the Sun
共用题干Early Ideas about the Universe1 Early man got his ideas about the universe by looking at the stars as you do.He observed carefully,and learned many things about the sun,the moon,and the stars.2 Suppose you were asked to collect evidence about the sun as early man did.You might go out morning after morning and see it come up in the east.Even on cloudy mornings,youwould observe that the darkness goes away and the world becomes light.You might not see the sun but would be sure it is there,because you notice that the earth warms up.As you continued,the sun climbs higher in the sky each day during part of the year. It stays in the sky longer. The earth gets warmer. Things begin to grow. It is spring and then summer.3 After a while the sun stays in the sky for shorter and shorter periods.Many plants begin to die.Leaves fall.Winter comes.Year after year this is repeated and you cannot tell exactly why it happens.But you realize that the sun seems to make the difference. Primitive（原始的）man felt that since the sun was so powerful it must be a god. It may seem silly to us now to worship（崇拜）a sun-god, but primitive man was right about the importance of the sun to life on earth.4 You have been told that the world is round.But suppose no one had ever taught you that the world was like a huge ball.Would you have ever thought of it yourself?You cannot see the curve（曲线）of the earth at once. You would have no idea of how big it was. That's why early man believed that the earth was small and flat.Such ideas appeared from the evidence they had.5 If you watch the stars night after night,you will see them rise and set.As you look at the sky,it is not difficult to imagine that you are in the center of a vast collection of twinkling（闪烁）lights. Some early astronomers（天文学家）believed the sky was a crystal shell or series of crystal shells,one inside the other. They believed this because that is what the night sky looked like.For many centuries,men believed that the earth was the center of the universe and that the sun,the moon,and the stars circled around it.Early man thought the earth was small and flat because_________.A:he did not observe the sun carefully enoughB:he could not see its curveC:the sun,the moon and the stars seemed to move around itD:the earth circles around the sunE:it looked like that at nightF:it has power over life on earth
共用题干New Comet FoundThere's a newfound comet closing in on the sun,and when it gets here in 2013,you may be able to see it with your naked eye.Astronomers stumbled upon the icy interloper on June 5 while searching for potentially hazardous asteroids（小行星）.Equipped with the world's largest digital camera , the University of Hawaii's Pan-STARRS team snagged a faint image of the odd object while it was more than 700 million miles away , between the orbits of Jupiter（木星）and Saturn（土星）."Almost everything we find is an asteroid,but this object was suspicious,"said Richard Wainscoat,co-discoverer of the comet and an astronomer at the University of Hawaii."Unlike asteroids, which appear point-like in images,the telltale sign that gave it away was its fuzzy appearance."By March 2013 the comet,named C/2011 L4(PANSTARRS),is expected to come within 30 million miles of the sun一closer even than the innermost（最深处）planet, Mercury（水星）.When the comet makes its closest approach to the sun,most of its ices will vaporize,adding to its hazy envelope of gas and dust and producing the familiar tail. This denser envelope,or coma, should boost the comet to peak brightness,making it potentially visible to the naked eye low in the western horizon just after sunset.While there is no danger of collision with Earth,preliminary calculations of the comet's orbit show that this may be its first and final trip through the solar system."It may be coming around the sun for the first and only time,only to be ejected from the solar system,never to return,"Wainscoat said."Since we don't have a lot of data on it,we really don't know the orbit well enough right now, and it will take up to two months of observations to find out."Astronomers believe C/2011 L4 may be a runaway from the Oort cloud（奥尔特云）,a reservoir of billions of hibernating（蛰伏）comets that orbits about 100,000 times farther than the distance between Earth and the sun.The fact that it's going around the back of the sun from our point of view may ultimately affect the comet's visibility,but a lot will depend on how close the body actually gets to the sun.Also, whether the comet is north or south of the sun when it reaches peak brightness will determine which hemisphere on Earth gets the better view.The ices of the comet will vaporize while heading to the sun.A:Right B:Wrong C:Not mentiond
单选题An amplitude of the Sun in high latitudes（）.Ais most accurate before sunriseBis most accurate after sunsetCshould only be observed when the Sun's lower limb is above the horizonDis most accurate when the Sun's center is observed on the visible horizon
单选题Neap tides occur（）.AAt the start of spring，when the Sun is nearly over the equatorBOnly when the Sun and Moon are on the same sides of the Earth and are nearly in lineCWhen the Sun and Moon are at approximately 90° to each other，as seen from the EarthDWhen the Sun，Moon，and Earth are nearly in line，regardless of alignment order
单选题Passage3 Questions 11 to 15 are based on the following passage. When we accept the evidence of our unaided eyes and describe the Sun as a yellow star,we have summed up the most important single fact about it-at this moment in time.It appears probable, however, that sunlight will be the color we know for only a negligibly(微不足道的)small part of the Sun's history. Stars, like individuals, age and change.As we look out into space,we see around us stars at all stages of evolution.There are faint blooded dwarfs so cool that their surface temperature is a mere 4,000 degrees Fahrenheit; there are scaring ghosts blazing at 100,000 degrees Fahrenheit and almost too hot to be seen, for the great part of their radiation is in the invisible ultraviolet range.Obviously, thedaylight produced by any star depends on its temperature, today (and for ages to come) our Sun is at about 10,000 degrees Fahrenheit, and this means that most of the Sun's light is concentrated in the yellow band of the spectrum, falling slowly in intensity toward both the longer and shorter light waves. That yellowhump will shift as the Sun evolves,and the light of the day will change accordingly.(80) It is natural to assume that as the Sun grows older, and uses up its hydrogen fuel-which it is now doing at the spanking rate of half a billion tons a second-it will become steadily colder and redder.14 According to the passage, as the Sun continues to age, what color is it likely to become?AYellow.BViolet.CRed.DWhite.
单选题A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?（）AThe motion of the apparent sun is along the eclipticBMeasurement of time is along the celestial equatorCThe speed of the Earth's revolution is not constantDThere are variations in the Earth's rotational speed
单选题Opposition occurs when（）.Athe Sun，Earth，and Moon are at right anglesBthe Sun's declination is 0°and is moving southCan inferior planet is at the maximum angle to the line of sight to the SunDthe Earth is between a planet and the Sun
单选题Written in central Canada in the early part of the twentieth century, _____, depicts life in Manitoda.AThe Midnight Sun was Victor Frank’s last novelBVictor Frank’s last novel was The Midnight SunCThe Midnight Sun, which was Victor Frank’s last novelDWhich was Victor Frank’s last novel, The Midnight Sun
单选题Spring tides occur（）.Aat the start of spring，when the Sun is nearly over the equatorBonly when the Sun and Moon are on the same side of the Earth and nearly in lineCwhen the Sun and Moon are at approximately 90°to each other as seen from the EarthDwhen the Sun，Moon，and Earth are nearly in line，in any order