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[主观题]

Animals can be made to do both when the activity of certain genes is doubled.A．YB．NC．NG

Animals can be made to do both when the activity of certain genes is doubled.

A．Y

B．N

C．NG

提问人：网友wadehua9742 发布时间：2022-01-06

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更多“Animals can be made to do both…”相关的问题

第1题

What made scientists think animal can be made to work for us one day？A．Animals are very sk

What made scientists think animal can be made to work for us one day？

A．Animals are very skillful at a circus.

B．They are big and strong.

C．Some animals are as clever as human beings.

D．Animals can be trained because they like to get something as a reward.

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第2题

What made scientists think animal can be made to work for us one day？A．Animals are very sk

What made scientists think animal can be made to work for us one day？

A．Animals are very skillful at a circus.

B．They are big and strong.

C．Some animals arc as clever as human beings.

D．Animals can be trained because they like to get something as a reward.

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第3题

What is the passage mainly about？A．Animals can serve people in many ways.B．The difference

What is the passage mainly about？

A．Animals can serve people in many ways.

B．The difference between trained dogs and normal ones.

C．Man made use of animals long ago.

D．Animals can bring pleasure to human beings.

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第4题

According to the discussion, what can be concluded about animal language？A．Animals do have

According to the discussion, what can be concluded about animal language？

A．Animals do have language.

B．No conclusion has been made at present.

C．Animals do not have language.

D．Some animals have language and others do not.

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第5题

The study made by Brook‘haven National Laboratory shows__________．

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A.Shared environmental factors can cause hypertension

B.Dietary salt can lead to high blood pressure in man and animals

C.Some rats not some individuals do not develop high blood pressure by consuming large amounts of salt

D.High blood pressure can be developed as a result of too much consumption of dietary salt

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第6题

根据以下资料，回答13~16题。 Can animals be made to work for us？ Some scientists think that

one day animals may be trained to do a number of simple jobs that are now done by human beings. They point out that at a circus, for example, we may see elephants, monkeys, dogs and other animals doing quite skillful things．Perhaps you have seen them on the television or in a film．If you watch closely, you may notice that the trainer always gives the animal a piece of candy or a piece of fruit as a reward．The scientists say that many different animals may be trained to do a number of simple jobs if they know they will get a reward for doing them. Of course, as we know, dogs can be used to guard a house, and soldiers in both old and modem times have used geese to give warning by making a lot of noise when a stranger or an enemy comes near．But it may be possible to train animals to work in factories．In Russia, for example, pigeons which are birds with good eyesight, are being used to watch out for faults in small steel balls that are being made in one factory．When the pigeon sees a ball which looks different from others, it touches a steel plate with its beak．This turns on a light to warn people in the factory．At the same time a few seeds are given as a reward．It takes three to five weeks to train a pigeon to do this and one pigeon can inspect 3 000 to 4 000 balls an hour. Apes have been used in America in helping to make cars, and scientists believe that these large monkeys may be one day gather crops and even drive trains. What made scientists think animal can be made to work for us one day？ A．Animals are very skillful at a circus． B．They are big and strong. C．Some animals are as clever as human beings. D．Animals can be trained because they like to get something as a reward.

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第7题

Which of the following statements can best be inferred from the passage？A. Fishes only

Which of the following statements can best be inferred from the passage？

A. Fishes only "speak" to communicate with each other.

B. Researches are now being made to study the significance of fish sounds.

C. Sea animals have a sharper hearing ability than men.

D. Sounds made by fish cannot be transmitted through the air.

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第8题

根据下列材料请回答 61～64 题：第 61 题 What can we learn from the text？ A．It is t

根据下列材料请回答 61～64 题：

根据下列材料请回答 61～64 题：第 61 题 What can we learn from t

第 61 题 What can we learn from the text？

A．It is the duty of specialists to make new words．

B．People are encouraged to make new words．

C．Words evolve faster than animals and plants．

D．New words are usually made by chemists．

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第9题

根据以下资料，回答下列各题。 Can animals be made to work for us？ Some scientists think that

one day animals may be trained to do a number of simple jobs that are now done by human beings． They point out that at a circus, for example, we may see elephants, monkeys, dogs and other animals doing quite skillful things．Perhaps you have seen them on the television or in a film．If you watch closely, you may notice that the trainer always gives the animal a piece of candy or a piece of fruit as a reward．The scientists say that many different animals may be trained to do a number of simple jobs if they know they will get a reward for doing them． Of course, as we know, dogs can be used to guard a house, and soldiers in both old and modem times have used geese to give warning by making a lot of noise when a stranger or an enemy comes near．But it may be possible to train animals to work in factories．In Russia, for example, pigeons which are birds with good eyesight, are being used to watch out for faults in small steel balls that are being made in one factory．When the pigeon sees a ball which looks different from others, it touches a steel plate with its beak．This turns on a light to warn people in the factory．At the same time a few seeds are given as a reward．It takes three to five weeks to train a pigeon to do this and one pigeon can inspect 3 000 to 4 000 balls an hour． Apes have been used in America in helping to make cars, and scientists believe that these large monkeys may be one day gather crops and even drive trains． What made scientists think animal can be made to work for us one day？

A.Animals are very skillful at a circus．

B.They are big and strong．

C.Some animals are as clever as human beings．

D.Animals can be trained because they like to get something as a reward．

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第10题

听力原文：Modern zoos are very different from zoos that were built fifty years ago. At that

听力原文： Modern zoos are very different from zoos that were built fifty years ago. At that time, zoos were places where people could go to see animals from many parts of the world.

The animals lived in cages that were made of concrete with iron bars, cages that were easy to keep clean. Unfortunately for the animals, the cages were small and impossible to hide in. The zoo environment was anything but natural. Although the zoo keepers took good care of the animals and fed them well, many of the animals did not thrive; they behaved in strange ways, and they often became ill.

In modern zoos, people can see animals in more natural habitats. The animals are given more freedom in large areas so that they can live more as they would in nature. Even the appearance of zoos has changed. Trees and grass grow in the cages, and streams of water flow through the areas that the animals live in. There are few bars; instead, there is often a deep ditch, filled with water, surrounding an area where several species of animals live together as they would naturally.

(30)

A．Animals lived in cages made of concrete with iron bars.

B．Animals lived in natural environments.

C．Streams of water flew through the cages.

D．Several species of animals lived together.

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