单选题Which of the following statements is NOT true?AA North Korean and his colleagues have found two sound-sensitive genes in rice.BPlants have a sense of light.CPlants have a sense of touch.DPlants can taste.

单选题
Which of the following statements is NOT true?
A

A North Korean and his colleagues have found two sound-sensitive genes in rice.

B

Plants have a sense of light.

C

Plants have a sense of touch.

D

Plants can taste.


参考解析

解析:
录音中提到在South Korea的the National Institute of Agricultural Biotechnology in Suwon工作的Mi-Jeong Jeong和他的同事声称在大米中发现了两种对声波有反应的基因。因此选项A提到的“一个朝鲜人”有误。
【录音原文】
Can plants hear? They all respond to light, which affects how they optimize growth and survival. Plants also have a sense of touch, allowing them to stiffen in response to wind, and a “taste” for nutrients. But whether they respond to sound is a mystery. Now Mi-Jeong Jeong of the National Institute of Agricultural Biotechnology in Suwon, South Korea, and colleagues claim to have identified two genes in rice that respond to sound waves. They also say that the promoter of one of the sound-sensitive genes could be attached to other genes to make them respond to sound, too.

相关考题:

The two plants he had ever worked for have _______ due to foreign competition. (A) shut down(B) shut up(C) shut off(D) shut away

Most animals have little connection with animals of different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership ( 伙伴关系 ) which does good to both of them. You may have noticed some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄生虫 ) on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals ( 珊瑚 ) of the sea. In their skins they have tiny plants act as "dustman", taking some of the waste products form. the corals and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are ever prevented from lighting so that they cannot live normally, the corals will die.1、Some birds like to sit on a sheep because ( ).A、they can eat its parasitesB、 they depend on the sheep for existenceC、 they enjoy traveling with the sheepD、 they find the position most comfortable2、The underlined word "they" in the last sentence of the first paragraph refers to ( ).A、birds and parasitesB、birds and sheepC、parasites and sheepD、sheep, birds and parasites3、What does the second paragraph mainly discuss? ( )A、Some animals and plants depend on each other for existence.B、 Some animals and plants develop their relationship easily.C、 Some plants depend on each other for fooD、 Some animals live better together.4、What does this article talk about? ( )A、Two kinds of animals for a partnership.B、Most animals only have connection with animals.C、The connection between the living things.D、Corals have some connection with plants.

There ( ) three plants in the office.A. areB. isC. have

AWhy do plants grow in some places and not in others? Why does some land have so much growing on it,while other land has almost no plants growing on it at all?To grow plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the earth only a few unusual plants can grow. That's why dry deserts everywhere are almost not covered by trees or grass.Plants must also have a place in which to f,ut down their roots and grow. They find it diffi-culr to grow on hard land. The town is built on hard land. The plants here have only the soil found between the cracks of the stones Io grow in.Another thing plants must have before they can grow is food.Whar will happen if we try to make things grow on the sandy beach? A few plants,such as beach grass,will grow in sand,L ut most plants won-t. Even if the weather is warm enough.and we water the plants each day. Many of them will die because the sand on this beach has al-most no food for plants.( )21. According to the passage,plants need _________ things to grow well.A. twoB. threeC. fourD. five

This may be because some people do not have the genes necessary to generate particular smell receptors in the nose.These receptors are the cells which sense smells and send( )to the brain.A.signsB.stimuliC.messagesD.impulses

共用题干“Salty” Rice Plant Boosts HarvestsBritish scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world. The attitude of the author towards the research project is______.A: positiveB: negativeC: suspiciousD: indifferent

Birds have a sharp sense of sight and dogs have a sharp sense of smelling.A:sensitive B:acuteC:edgy D:bright

共用题干“Salty” Rice Plant Boosts HarvestsBritish scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world. Flowers and Yeo have started a program______.A: to find ways to prevent water pollutionB: to identify genes that promote growth in salty soilC: to breed rice plants that taste saltyD: to find ways to remove excessive salt from soil

共用题干“Salty” Rice Plant Boosts HarvestsBritish scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world. Which of the following is NOT mentioned as a cause of the problem discussed in the passage?A: Natural barriers to sea water have been destroyed.B: The water table has gone down after droughts.C: Sea level has been continuously rising.D: Evaporation of water leaves salt behind.

共用题干“Salty” Rice Plant Boosts HarvestsBritish scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.The pair have recently begun a three-year programme,funded by the Biotechnology and Biological Sciences Research Council,to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops,starting with rice.It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several factors. In the tropics , mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down .In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat , leaving salt deposits behind.Excess salt then enters the plants and prevents them functioning normally.Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na- ture will then be able to bloom again,providing much needed food in the poorer countries of the world. Which of the following statements about Flowers and Yeo is true?A: They are students at Sussex University.B: They are rice breeders.C: They are husband and wife.D: They are colleagues at an institution of higher learning.

资料:What,if anything,do we gain by clinging to our antioxidant supplements?Very little,according to an accumulating body of research. We don’t need massive doses of antioxidants,we need stress to compel our own bodies to create antioxidants.“Everybody thinks oxidation is bad,and that antioxidants are good,”says Dr.Jones,“That’s bogus. A little bit of poison is good.”That poison can actually come from plants,especially those that have survived harsh conditions. Foods that have survived harsh conditions make us stronger by stressing our bodies,not because they’re rich in antioxidants.As the science quarterly Nautilus explains,plants have developed an arsenal of chemicals to help them ward off insects and grazers. These“antifeedants,”when ingested by humans,trigger the body to release proteins and activate genes that “produce antioxidants,enzymes to metabolize toxins,proteins to flush out heavy metals,and factors that enhance tumor suppression.”Plants prepare your body to handle toxins in the same way as exercise prepares you to race-by stressing your body. And supplements,says Dr.Hooper,interrupt this process.“These antioxidant supplements are like a Trojan horse,”continues Dr.Hooper. They say,I’m a good guy. You guys go to sleep and while the defense is asleep the antioxidants get rid of any oxidation. It puts the defense-system’s army to sleep.While Dr.Jones acknowledges the benefits of vitamin E for muscle cramps and macular degeneration,he doesn’t approve the idea that it improves one’s physical performance. He suggests that athletes in intense contact sports such as soccer and football benefit from trauma. “Players have to be hit with pads on Tuesdays and Thursdays in order to compete on Sundays-they need that actual trauma.”he says.“Everything in our society is geared toward,How can we reduce stress?”adds Dr.Hooper. “When it should be just the opposite. We need stress. Stress is good.Which of the following statements is true according to the article?A.A large amount of antioxidant supplements are not necessary.B.Oxidation can not do anything good at all to our body.C.Plants surviving hard conditions can produce a lot of antioxidant.D.Antioxidant supplements can improve one’s physical performance.

共用题干“Salty” Rice Plant Boosts HarvestsBritish scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.Tim Flowers and Tony Yeo,from Sussex University's School of Biological Sciences,have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.The pair have recently begun a three-year programme,funded by the Biotechnology and Bio-logical Sciences Research Council,to establish which genes enable some plants to survive salty conditions.The aim is to breed this capability into crops,starting with rice.It is estimated that each year more than 10m hectares(公顷)of agricultural land are lost because salt gets into the soil and stunts(妨碍生长)plants. The problem is caused by several fac- tors. In the tropics, mangroves(红树林)that create swamps(沼泽)and traditionally formed barriers to sea water have been cut down.In the Mediterranean,a series of droughts have caused the water table to drop,allowing sea water to seep(渗透)in. In Latin America , irrigation often causes problems when water is evaporated(蒸发)by the heat,leaving salt deposits behind.Excess salt then enters the plants and prevents them functioning normally.Heavy concentra-tions of minerals in the plants stop them drawing up the water they need to survive.To overcome these problems,Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth.They have started to breed these characteristics into a new rice crop,but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.Once the characteristics for surviving salty soil are known,Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.Land that has been abandoned to na-ture will then be able to bloom again,providing much needed food in the poorer countries of the world. The word“affect”in Paragraph 6 could be best replaced by_______.A: “influence”B: “effect”C:.“stop”D: “present”

There()three plants in the corners of the room.A、isB、areC、have

Which of the following is not true of British iron and steel industry?()A、Britain.s steel industry is declining.B、No more new discoveries of iron ore have been found in Britain.C、Supplies of iron ore are now mostly foreign.D、Compared with newer plants in the world,Britain.s steelworks are not efficient.

Which of the following statements about a Sales Catalog is TRUE?()A、A store can only have one sales catalog.B、A sales catalog is used to bundle similar products.C、A sales catalog may be used to place a product in more than one category.D、Every store must have a sales catalog.

Which two statements about bigfile tablespaces are true? ()A、The bigfile tablespace have only one data file.B、The segment space management is automatic.C、The extent management is dictionary managed.D、The database can have only one bigfile tablespace.E、The bigfile tablespace can be converted to a smallfile tablespace.

Which two statements about views are true?()A、A view can be created as read only.B、A view can be created as a join on two or more tables.C、A view cannot have an ORDER BY clause in the SELECT statement.D、A view cannot be created with a GROUP BY clause in the SELECT statement.E、A view must have aliases defined for the column names in the SELECT statement.

单选题Jim, ______ two of his colleagues, ______ for the annual garden competition.Atogether with; have joinedBalong with; has enteredCexcept for; has taken partDapart from; have participated

单选题Which of the following statements is NOT true?APeople may have different personalities.BPeople differ from each other in appearance.CPeople can learn to recognize human faces.DPeople can describe all human features of others.

单选题According to the passage, which of the following statements is NOT true?AThe current deal is scheduled to be completed within half a year.BWhat Toshiba buys is a nuclear power supplier.CThe purchased corporation is headquartered in Pennsylvania.DNew nuclear plants are likely to be built in India by Toshiba.

单选题Bird and cuckoo have the sense relation of hyponymy. Which of the following pairs of words has the same sense relation?AVowel and consonantBMouth and tongueCLexicon and wordDNumber and gender

单选题Which of the following statements is supported by the passage?AThe college students have trouble separating good plants from wild grass.BCraftsman’s experience is usually unscientific.CThe contemptuous (傲慢的) college students will receive nothing from craftsmen.DTraditional practices are as important as experience for the college student.

单选题The plants would have grown all right if she_______them properly.Ahad wateredBwateredChas wateredDwaters

单选题Which of the following statements is TRUE? ______.ACredit cards have more advantages than travellers’ cheques.BDollar bills are as convenient as credit cards.COne-cent coins have been withdrawn from circulation.DYou can increase your credit limit as you like.

单选题The plants would have grown all right if she _____ them properly.Ahad wateredBwateredChas wateredDwaters

单选题According to the passage, the International Trade Commission is involved in which of the following?AInvestigating allegations of unfair import competitionBGranting subsidies to companies in the United States that have been injured by import competitionCRecommending legislation to ensure fair tradeDIdentifying international corporations that wish to build plants in the United States

单选题Which of the following is not true of British iron and steel industry?()ABritain.s steel industry is declining.BNo more new discoveries of iron ore have been found in Britain.CSupplies of iron ore are now mostly foreign.DCompared with newer plants in the world,Britain.s steelworks are not efficient.