共用题干WaterFrom the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time._________(54)A:regulates B:regulateC:regulated D:regulating
共用题干
Water
From the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time.
Water
From the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time.
_________(54)
A:regulates
B:regulate
C:regulated
D:regulating
A:regulates
B:regulate
C:regulated
D:regulating
参考解析
解析：本句意思是：最初的人类文明出现于那些水在周围环境中起着重要作用的地方。因此选择A项。
本句意思是：这是水对人类独创性的挑战。根据含义仅有C项符合题意，to意思是“对于”，表示方向。
需要填入关联词引导非限制性定语从句，由于先行词在句中做主语，因此选择D项。
本句意思是：（巴比伦人）发明了管水的法律。本句句子主谓语完整，需要分词修饰law，由于law与water usage是施动关系，因此需要动词-ing形式，选择D项。
本句意思是：中国人从水上获得灵感，修建了千里大运河。空格部分与前面的数字以连字符连接，因此只能选择单数形式共同构成修饰成分修饰名词canal，因此选择 D项。
本句意思是：（运河）在将近2 500年后的今天仍在使用而且依旧使工程师们惊叹不已。短语in use意思是“在使用中”;for use意思是“供使用”;by use不是固定搭配； on use需要和介词of搭配构成短语，意思是“利用”，因此选项A最符合题意。
本句意思是：但是古代人从没有发现过一个能彻底解决水患的办法。 ancient既是形容词“古老的”，也是名词“古人”，做形容词时不能加5，作名词时是可数名词，可以加5。此处需要名词或名词短语做主语，而这里ancient概指所有古人，所以应该是复数，并加定冠词the表示特指。因此选择B项。
本句意思是：它是那样的不可预料和危险，以至于一场水灾就可能使100 万人丧生。
people意思是“人们”,death意思是“死亡”,damage意思是“破坏”。ruin 意思是“破坏”。根据含义选择B项。
本句意思是：水使伟大的印度河谷文明停滞。 influence意思是“影响”, effect意思是“作用”,society意思是“社会”,civilization意思是“文化”，只有。项符合题意。
本句意思是：排水设施的不足毁坏了它的大部分土地。land是不可数名词，而且没有lot of或者a lots of的搭配，因此只能选择C项。
本句意思是：今天，水一如既往地控制着人类。for意思是“为了”,as意思是“像······一样”,because意思是“因为”,whereas意思是“然而”，因此只能选择B项。
本句意思是：水的存在决定着人们安家建城的位置。govern意思是“支配，决定”,control意思是“控制”,lead意思是“领导”,influence意思是“影响”，因此选项A最合适。
本句意思是：水剧烈的可变性可以杀死人类或是人类的牲畜、庄稼。 cause意思是“导致”,violate意思是“侵犯、干扰”,kill意思是“杀死”,damage意思是“破坏”。选项C最符合题意。
本句意思是：它的航线把人们联系起来。根据本句的含义，仅有选项D符合题意。
本句意思是：这是水对人类独创性的挑战。根据含义仅有C项符合题意，to意思是“对于”，表示方向。
需要填入关联词引导非限制性定语从句，由于先行词在句中做主语，因此选择D项。
本句意思是：（巴比伦人）发明了管水的法律。本句句子主谓语完整，需要分词修饰law，由于law与water usage是施动关系，因此需要动词-ing形式，选择D项。
本句意思是：中国人从水上获得灵感，修建了千里大运河。空格部分与前面的数字以连字符连接，因此只能选择单数形式共同构成修饰成分修饰名词canal，因此选择 D项。
本句意思是：（运河）在将近2 500年后的今天仍在使用而且依旧使工程师们惊叹不已。短语in use意思是“在使用中”;for use意思是“供使用”;by use不是固定搭配； on use需要和介词of搭配构成短语，意思是“利用”，因此选项A最符合题意。
本句意思是：但是古代人从没有发现过一个能彻底解决水患的办法。 ancient既是形容词“古老的”，也是名词“古人”，做形容词时不能加5，作名词时是可数名词，可以加5。此处需要名词或名词短语做主语，而这里ancient概指所有古人，所以应该是复数，并加定冠词the表示特指。因此选择B项。
本句意思是：它是那样的不可预料和危险，以至于一场水灾就可能使100 万人丧生。
people意思是“人们”,death意思是“死亡”,damage意思是“破坏”。ruin 意思是“破坏”。根据含义选择B项。
本句意思是：水使伟大的印度河谷文明停滞。 influence意思是“影响”, effect意思是“作用”,society意思是“社会”,civilization意思是“文化”，只有。项符合题意。
本句意思是：排水设施的不足毁坏了它的大部分土地。land是不可数名词，而且没有lot of或者a lots of的搭配，因此只能选择C项。
本句意思是：今天，水一如既往地控制着人类。for意思是“为了”,as意思是“像······一样”,because意思是“因为”,whereas意思是“然而”，因此只能选择B项。
本句意思是：水的存在决定着人们安家建城的位置。govern意思是“支配，决定”,control意思是“控制”,lead意思是“领导”,influence意思是“影响”，因此选项A最合适。
本句意思是：水剧烈的可变性可以杀死人类或是人类的牲畜、庄稼。 cause意思是“导致”,violate意思是“侵犯、干扰”,kill意思是“杀死”,damage意思是“破坏”。选项C最符合题意。
本句意思是：它的航线把人们联系起来。根据本句的含义，仅有选项D符合题意。
相关考题：
Water is the __46___ of all the things we eat and drink . Not many people understand this but __47____ quite true . The human body can go without ___48___ for a long time . We’ve got many examples for this . Yet two __49___ three days without water can usually make people __50____ . Man can’t live __51____ water .Many people don’t understand how ___52__ water the human body needs __53___ work well , and many people , especially young people , do not drink enough , ___54__ in very hot weather . Our body has mostly water , about 65% to 75% . That is to say about two thirds of our body is water . When we do sports , some of the water will get away from our body . __55 _ we don’t drink some water , we won’t have enough water． And if we don’t have enough water , we’ll feel tired and many of us will get ill . So you know how important water is to us .46.___________( )46. A. importantB. most importantC. more importantD. different
Passage FiveFrom the beginning rivers have played an important part in the life of man. Man of the earliest times used the rivers as a means of traveling. Today rivers still serve as a great waterway for the transport and people.In ancient times, man settled near rivers or on river banks and built up large empires.Water is the Nature's most precious gift to man. Man needs water to irrigate his crops, to cook and to wash. In nations all over the world rivers mean life and wealth. They feed and clothe the nations around them.Water is also a source of energy and power. Man constructs huge dams across the river to control the water for irrigation and get the energy needed to drive generators. The electrical power is then directed to homes, cities, factories and television stations.Man uses water each day. His main source of water comes from reservoirs, which in turn get their water from the rivers.Rivers also bring down soil and minerals from the mountains and deposit them on the plains building up rich river deltas for raising plants and crops. Fresh water life in rivers or in lakes fed by them provide man with food.In a small way rivers help to keep man in good health and provide for his amusements. Various forms of water sports keep man strong and healthy.Rivers have run on this earth long before man. Man's future ability to live is uncertain, but rivers will flow on forever.52. Rivers have been important to man______.A. since the last centuryB. for a very long timeC. since a few hundred years agoD. since a few years ago
共用题干第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.Who would most probably disagree with conservationists?A:Industrialists.B:Ecologists.C:Businessmen.D:Environmentalists.
共用题干第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.According to the passage,pollution of the air and water is caused by__________.A:thousands of tons of gases coming out of the exhausts of motor vehiclesB:the changes of the environment that technology has brought to manC:the increasing amount of oil that has been producedD:industrial wastes discharged into rivers
共用题干第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.The ecological balance of the sea is lost when_________.A:people consume more fish than they used toB:the ecological balance of the river is lostC:large numbers of algae,fish and birds are killedD:the production of marine petroleum is increased
共用题干第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.Man has changed his physical environment with a view to_________.A:altering the physical features of the earth B:modifying the face of the planetC:improving his surroundings'D:bettering his way of life
共用题干第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.The purpose of the writer is___________.A:to reduce modern technologyB:to improve man's way of lifeC:to warn people not to change the natural environmentD:to call attention to the protection of the natural environment
共用题干Some doctors think that you should drink a glass of water each morning. You should drink water before doing anything else.The temperature of the water should be similar to body temperature:not hot,not cold.Why should you drink this water?______(46).It helps clean out your kidneys.It prepares your stomach for digestion.______(47).After drinking water,the intestines can more easily take out nutrients from our food. And water helps us go to the bathroom more easily.Scientists suggest that people take in 1,600 milliliters of water each day.______(48).If you do,your kidneys will have to work much harder to eliminate it. It's better to drink some in morning and some in afternoon.______(49).And during meals,they think water dilutes the juices produced in our stomachs.This can interfere with normal digestion.Are you drinking enough water every day?Check the color of your urine.______(50).if your urine is very dark yellow,your probably need to drink more water. A little water each day could make you much healthier._________（47）A:If it is light yellow,you are probably drinking enoughB:Water can also help your intestines work betterC:Some people think it's better to drink between mealsD:Water helps your body in many waysE:But don't drink all of that water in one sitting F: Water is an essential element of life
共用题干If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they leaked______(52)the land.When nuclear energy is produced,a lot of______(53)is produced,too,50 a flow of lake or ocean water 15 used to cool the operations.Then the water______(54)to its source.If the returning water were too hot,it would destroy fish and other______(55).Cow manure is being used to produce a kind of______(56).The manure from farms is put into a machine to convert it to a liquid.Then the gas 15 formed______(57)a natural process.If the converter were not 50______(58)at the present time,it would be used in many places to provide______(59).Garbage has become an energy source.It______(60)to oil,steam,or electricity,or it is used on the land.But recent______(61)about power supplies has led to increased interest in the use of wind______(62)a source of electrical power.Windmills are clean and they______(63)no waste.And they use a______(64)resource.Some scientists consider that wind energy systems can fulfill a valuable______(65)in meeting the energy needs of industrialized nations and of the developing world._________(52)A:into B:ontoC:on D:to
共用题干If you made a list of all the jobs performed by the different kinds of energy,you would fill many pages.Nuclear energy is used in some areas of the United States.But there are dangers.Waste materials from nuclear______(51)would destroy life if they leaked______(52)the land.When nuclear energy is produced,a lot of______(53)is produced,too,50 a flow of lake or ocean water 15 used to cool the operations.Then the water______(54)to its source.If the returning water were too hot,it would destroy fish and other______(55).Cow manure is being used to produce a kind of______(56).The manure from farms is put into a machine to convert it to a liquid.Then the gas 15 formed______(57)a natural process.If the converter were not 50______(58)at the present time,it would be used in many places to provide______(59).Garbage has become an energy source.It______(60)to oil,steam,or electricity,or it is used on the land.But recent______(61)about power supplies has led to increased interest in the use of wind______(62)a source of electrical power.Windmills are clean and they______(63)no waste.And they use a______(64)resource.Some scientists consider that wind energy systems can fulfill a valuable______(65)in meeting the energy needs of industrialized nations and of the developing world._________(51)A:stations B:factoriesC:works D:firms
共用题干WaterFrom the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time._________(51)A:where B:the placeC:when D:in the place
共用题干WaterFrom the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time._________(63)A:govern B:controlC:lead D: influence
共用题干WaterEarth is like a big blue marble.From high above the Earth and from the moon,the planet gleams and shines.The blue water in the oceans and seas of the Earth makes a dramatic image.The white clouds above the Earth add beauty to the picture.Water is the source of this beauty and the source of life on Earth.It is the reason people can live on this planet. Water is everywhere.(46)_______.It is in the soil,the ground that grows the food.Water is in rock deep under the ground, in natural holding areas一in storage.In a real sense,water keeps Earth alive.Nature has an unchanging amount of water. Nature has a perfect system for recycling water. (47)_____.It falls as rain.Then it goes to one of three places.It might sink slowly through the soil into the natural holding areas in the rock.(48)_______一by becoming vapor,or gas.It might run off into streams,rivers and oceans.By itself,nature can keep the balance and provide plenty of clean water for us.Nature recycles water.However,people cause problems for this natural recycling system.Nature's recycling system can work well(49)________.Some ways that people upset nature are easy to understand.For example, dirty sewage（污水沟系统）water from homes and factories must not mix with drinking water. People get sick from drinking contaminated water. Sometimes water from factories goes into streams and rivers.It enters into the groundwater. It can flow into lakes too.This kind of contamination from industry(waste water from factories) can be dangerous for people.If water contains poisons and chemicals,it is poison.(50)________;some poisons kill people as well as birds and animals.Without knowing,people can upset nature's recycling system.Lakes and rivers add beauty to the world. People enjoy water for entertainment purposes,too. People enjoy swimming and playing in the cool water of a lake in the summer. They like to ride on boats on rivers.Many people enjoy catching fish in the rivers.They fish for food and for sport.However,in some places,the water of the lakes and rivers is no longer safe.These rivers and lakes are contaminated.The fish are dying because of the chemicals from farms and factories.People cannot swim in the polluted water._________（49）A:Poison makes people sickB:It is in the air that people breatheC:We can not live without waterD:Water is used again and againE:only if people work with the system and not against it F: It might disappear into the air quickly
共用题干WaterFrom the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time._________(60)A:.influence B:effectC:society D: civilization
共用题干WaterFrom the beginning,water has furnished man with a source of food and a highway to travel upon.The first civilization arose(51)________water was a dominant element in the environment,a challenge(52)______man's ingenuity.The Egyptians invented the 365一day calendar in response to the Nile's annual flooding. The Babylonians,(53)________were among the most famous lawmakers in ancient times,invented laws(54)_________ water usage.Water inspired the Chinese to build a 1,000-(55)________canal,a complex system which,after nearly 2,500 years,remains still practically(56)_______ and still commands the astonishment of engineers.But (57)_________never found complete solutions to their water problems.The Yellow River is also known as "China's Sorrow" ;it is so unpredictable and dangerous(58)_________in a single flood it has caused a million(59)________.Floods slowed the great(60)_________of the Indus River Valley,and inadequate drainage ruined (61)________of its land. Today water dominates man (62)_______it always has done.Its presence continues to(63)________the location of his homes and cities;its violent variability can(64)________man or his herds or his crops;its routes links him(65)________his fellows;its immense value may add to already dangerous political conflicts.There are many examples of this in our own time._________(52)A:with B:asC:to D:on
共用题干To Survive or to Vanish1.Over 3.6 billion years ago,the first creature was born in the world.Since then,the earth started its era with life.The history of life on earth has been a history of interaction between living things and their surroundings.To a large extent,the physical form and the habits of the earth's vegetation and its animal life have been molded by the environment. Considering the whole span of earthly time,the opposite effect,in which life actually modifies its surroundings,has been relatively slight. Only in the present century has one species一man acquired significant power to alter the nature of his world.2.During the past 25 years,this power has not only become increasingly great but it has changed in character. The most alarming of all man's assaults upon the environment is the contamination of air,earth,rivers,and sea with dangerous and even lethal materials. This pollution is for the most part irrecoverable.In this now universal contamination of the environment,chemicals are the sinister partners of radiation in changing the very nature of the world the very nature of its life. Chemicals sprayed on croplands or forests or gardens lie long in soil,entering into living organisms, passing from one to another in a chain of poisoning and death.Or they pass mysteriously by underground streams until they emerge and combine into new forms that kill vegetation,sicken cattle,and work unknown harm on those who drink from once pure wells."Man can hardly even recognize the devils of his own creation,"as a scientist has said.3.Hundreds of millions of years have passed before the globe produced the life that now inhabits the earth.Given time not in years but in millennia life adjusts,and a balance has been reached.But in the modern world there is no time.4.The quick steps of change follows the impetuous pace of man rather than the deliberate pace of nature.Radiation is now the unnatural creation of man's tampering with the atom.The chemicals are the synthetic creations of man's inventive mind,having no counterparts in nature.5.To survive these chemicals would require not merely the years of one man's life but the life of generations.And even this,were it by some miracle possible,would be futile,for the new chemicals come from our laboratories in an endless stream;almost five hundred annually find their way into actual use in the United States alone.Among them are many that are used in man's war against nature.Since the mid l940's over 200 basic chemicals have been created for use in killing insects,weeds,and other organisms described as"pests".6.It is not my contention that chemical insecticides must never he used.I do contend that we have put poisonous and biologically potent chemicals indiscriminately into the hands of persons largely or wholly ignorant of their potentials for harm. We have subjected enormous numbers of people to contact with these poisons,without their consent and often without their knowledge.I contend,furthermore,that we have allowed these chemicals to be used with little or no advance investigation of their effect on soil,water,wildlife,and man himself. Future generations are unlikely to forgive our lack of concern for the integrity of the natural world that supports all life.Human's pollution on nature is for the most part_______.A:man's tampering with the atomB:enormous numbers of people to contact with these poisonsC:the integrity of the natural world that supports all lifeD:inventiveE:irrecoverableF:relatively slight
共用题干To Survive or to Vanish1.Over 3.6 billion years ago,the first creature was born in the world.Since then,the earth started its era with life.The history of life on earth has been a history of interaction between living things and their surroundings.To a large extent,the physical form and the habits of the earth's vegetation and its animal life have been molded by the environment. Considering the whole span of earthly time,the opposite effect,in which life actually modifies its surroundings,has been relatively slight. Only in the present century has one species一man acquired significant power to alter the nature of his world.2.During the past 25 years,this power has not only become increasingly great but it has changed in character. The most alarming of all man's assaults upon the environment is the contamination of air,earth,rivers,and sea with dangerous and even lethal materials. This pollution is for the most part irrecoverable.In this now universal contamination of the environment,chemicals are the sinister partners of radiation in changing the very nature of the world the very nature of its life. Chemicals sprayed on croplands or forests or gardens lie long in soil,entering into living organisms, passing from one to another in a chain of poisoning and death.Or they pass mysteriously by underground streams until they emerge and combine into new forms that kill vegetation,sicken cattle,and work unknown harm on those who drink from once pure wells."Man can hardly even recognize the devils of his own creation,"as a scientist has said.3.Hundreds of millions of years have passed before the globe produced the life that now inhabits the earth.Given time not in years but in millennia life adjusts,and a balance has been reached.But in the modern world there is no time.4.The quick steps of change follows the impetuous pace of man rather than the deliberate pace of nature.Radiation is now the unnatural creation of man's tampering with the atom.The chemicals are the synthetic creations of man's inventive mind,having no counterparts in nature.5.To survive these chemicals would require not merely the years of one man's life but the life of generations.And even this,were it by some miracle possible,would be futile,for the new chemicals come from our laboratories in an endless stream;almost five hundred annually find their way into actual use in the United States alone.Among them are many that are used in man's war against nature.Since the mid l940's over 200 basic chemicals have been created for use in killing insects,weeds,and other organisms described as"pests".6.It is not my contention that chemical insecticides must never he used.I do contend that we have put poisonous and biologically potent chemicals indiscriminately into the hands of persons largely or wholly ignorant of their potentials for harm. We have subjected enormous numbers of people to contact with these poisons,without their consent and often without their knowledge.I contend,furthermore,that we have allowed these chemicals to be used with little or no advance investigation of their effect on soil,water,wildlife,and man himself. Future generations are unlikely to forgive our lack of concern for the integrity of the natural world that supports all life.The effect of life modifying its surroundings has been_______.A:man's tampering with the atomB:enormous numbers of people to contact with these poisonsC:the integrity of the natural world that supports all lifeD:inventiveE:irrecoverableF:relatively slight
共用题干To Survive or to Vanish1.Over 3.6 billion years ago,the first creature was born in the world.Since then,the earth started its era with life.The history of life on earth has been a history of interaction between living things and their surroundings.To a large extent,the physical form and the habits of the earth's vegetation and its animal life have been molded by the environment. Considering the whole span of earthly time,the opposite effect,in which life actually modifies its surroundings,has been relatively slight. Only in the present century has one species一man acquired significant power to alter the nature of his world.2.During the past 25 years,this power has not only become increasingly great but it has changed in character. The most alarming of all man's assaults upon the environment is the contamination of air,earth,rivers,and sea with dangerous and even lethal materials. This pollution is for the most part irrecoverable.In this now universal contamination of the environment,chemicals are the sinister partners of radiation in changing the very nature of the world the very nature of its life. Chemicals sprayed on croplands or forests or gardens lie long in soil,entering into living organisms, passing from one to another in a chain of poisoning and death.Or they pass mysteriously by underground streams until they emerge and combine into new forms that kill vegetation,sicken cattle,and work unknown harm on those who drink from once pure wells."Man can hardly even recognize the devils of his own creation,"as a scientist has said.3.Hundreds of millions of years have passed before the globe produced the life that now inhabits the earth.Given time not in years but in millennia life adjusts,and a balance has been reached.But in the modern world there is no time.4.The quick steps of change follows the impetuous pace of man rather than the deliberate pace of nature.Radiation is now the unnatural creation of man's tampering with the atom.The chemicals are the synthetic creations of man's inventive mind,having no counterparts in nature.5.To survive these chemicals would require not merely the years of one man's life but the life of generations.And even this,were it by some miracle possible,would be futile,for the new chemicals come from our laboratories in an endless stream;almost five hundred annually find their way into actual use in the United States alone.Among them are many that are used in man's war against nature.Since the mid l940's over 200 basic chemicals have been created for use in killing insects,weeds,and other organisms described as"pests".6.It is not my contention that chemical insecticides must never he used.I do contend that we have put poisonous and biologically potent chemicals indiscriminately into the hands of persons largely or wholly ignorant of their potentials for harm. We have subjected enormous numbers of people to contact with these poisons,without their consent and often without their knowledge.I contend,furthermore,that we have allowed these chemicals to be used with little or no advance investigation of their effect on soil,water,wildlife,and man himself. Future generations are unlikely to forgive our lack of concern for the integrity of the natural world that supports all life.Radiation is now the unnatural creation of_______.A:man's tampering with the atomB:enormous numbers of people to contact with these poisonsC:the integrity of the natural world that supports all lifeD:inventiveE:irrecoverableF:relatively slight
The first true piece of sports equipment that man invented was the ball.In ancient Egypt,as everywhere,pitching stones was a favorite children's game．But a badly thrown rock could hurt a child．Looking for something less dangerous to throw,the Egyptians made what were probably the first balls.At first,balls were made of grass or leaves held together by vines．Later they were made of piece of animal skin sewed together and stuffed with feathers or hay.Even though the Egyptians were warlike,they found time for peaceful games．Before long they had developed a number of ball games,each with its own set of rules．Perhaps they played ball more for instruction than for fun．Ball playing was thought of mainly as a way to teach young men the speed and skill they would need for war.The best title for this selection is__.A.The First Ball GamesB.How Egyptian Children Played GamesC.Egyptian SportsD.The Beginning of Sports
共用题干Where Did the Earth's Water Come From?Earth is located within the"snow line"of the solar system,the region closest to the Sun where H2 0 is primarily in liquid or gaseous form,if at all.______(46)The snow line phenomena is reflected in the water content of planets like Mercury,Venus,and Mars. Water is absent on Mercury.On Venus,H2O only exists as a trace element in the atmosphere.Mars only has a thin veneer of ice in its polar regions.In general,water is rare within the snow line.Why does Earth have so much water relative to the other inner planets?71%of the surface is covered in the oceans,more than half of which is deeper than 3,000 meters,with an approximate total volume of 1.3 billion cu km.______(47)There are various theories as to where all the Earth's water came from,but several theories have fared better than the others.______(48)When the Earth was in the process of forming,with a radius just 40%smaller than at present,it would have had enough gravity to hold on to a tenuous atmosphere with water vapor. The first water vapor on the planet would have come from the planet's internals,where volatile(low weight)chemicals would have a tendency to float to the top,and heavy chemicals(iron and nickel)would sink.Though the first of Earth's water came about through volcanism,this alone probably didn't produce enough to form stable pools on the surface.______(49)Comparing the isotope ratios of water on Earth and water from comets and asteroids has revealed that the majority of the Earth's water comes from asteroids.Throughout its history,Earth's water has increased in volume due to biological processes. In the early seas of Earth,hydrogen sulfide would have been in great supply,which,when reacted with carbon dioxide from the atmosphere during photosynthesis in sulfide-reducing bacteria,would have produced hydrogen,sulfur,and water.______(50)________（49）A: More water was added to the planet during several hypothesized large impacts from asteroids from the outer asteroid belt.B:We know that the oceans existed as early as 100 million years after the formation of the Earth.C:Still,the oceans only make up 0.023%of the Earth's total mass.D:Astronomers say Earth s water may have come from space.E:The snow line is located in the outerasteroid belt,between the orbits of Mars and Jupiter. F: Many geologists believe that the majority of Earth's water generated through this process.
问答题Pollution 1)Pollution is a problem because man, in an increasingly populated and industrialized world，is upsetting the environment in which he lives. 2) Many scientists maintain that one of man's greatest errors has been to equate growth with advancement. 3) Now “growth” industries are being looked on with suspicion incase their side effects damage the environment and disrupt the relationship of different forms of life. 4) The growing population makes increasing demands on the world’s fixed supply of air, water and land. 5) This rise in population is accompanied by the desire of more and more people for a better standard of living. 6) The problem has been causing increasing concern to living things and their environment.
问答题Pollution is a problem because man, in an increasingly populated and industrialized world, is upsetting the environment in which he lives. Many scientists maintain that one of man’s greatest errors has been to equate growth with advancement. Now “growth” industries are being looked on with suspicion in case their side effects damage the environment and disrupt the relationship of different forms of life, the growing population makes increasing demands on the world’s fixed supply of air, water and land.
单选题If you detect oil in the water around your vessel while discharging fuel, the FIRST thing to do is（）.Atry to find out where the oil is coming fromBcall the MasterChave the pump man check the discharge pipingDshutdown operations
单选题A racetrack turn would be better than a Williamson turn in recovering a man overboard if （）.Athe man has been missing for a period of timeBthe sea water is very cold and the man is visibleCthere is thick fogDthe wind was from astern on the original course
问答题Pollution is a problem because man, in an increasingly populated and industrialized world, is upsetting the environment in which he lives. Many scientists maintain that one of man’s greatest errors has been to equate growth with advancement. Now “growth” industries are being looked on with suspicion in case their side effects damage the environment and disrupt the relationship of different forms of life. The growing population makes increasing demands on the world’s fixed supply of air, water and land. This rise in population is accompanied by the desire of more and more people for a better standard of living. Thus still greater demands for electricity, water and goods result in an ever increasing amount of waste material to be disposed of.The problem has been causing increasing concern to living things and their environment. Many believe that man is not solving these problems quickly enough and that his selfish pursuit of possessions takes him past the point of no return before be fully appreciates the damage.