Sheep, like turkeys and ostriches, are not considered the cleverest animals. British scientists said last Wednesday human may have underestimated(低估) the woolly creatures. They could be much smarter than we think.

Researchers at the Babraham Institute in Cambridge, southern. England, have shown that animals have a good memory system and are extremely good at recognizing faces--which they think is a sure sign of intelligence.

Behavioral scientist Keith Kendrick and his friends trained 20 sheep to recognize and distinguish(区别) 25 pairs of sheep faces and used electrodes(电极) to measure their brain activity, which showed they could remember 50 faces for up to two years.

"If they can do that with faces, the fact is that they have to have reasonable intelligence, otherwise, what is the point of having a system for remembering anything else," Kendrick said in an interview.

So hours of seemingly mindless eating grass may not be so mindless after all.

Kendrick believes sheep got their reputation as dumb animals because they live in large groups and do not appear to have much ind

ividuality and are frightened of just about everything.

All animals, including humans, once they are frightened don't tend to show signs of intelligent action," he explained.

In research reported in the science journal Nature, Kendrick and his team showed that sheep, like humans, have a specialized system in the brain, which allows them to distinguish between many different faces that look extremely similar.

"The most important findings of the study is that they are able, both from a behavioral point of view and from looking at the way the brain is organized, to remember a large number of faces of individuals for a very long time," said Kendrick. "It is a very strange system. They are showing similar abilities in many ways to humans. "

From the first paragraph we can find that ______.

   A. people used to think sheep are smarter than the other animals

   B. people used to raise sheep in a wrong way

   C. people don't consider sheep as clever animals

   D. people have done a lot of research on sheep

From what Kendrick said in the interview we learn that ________.

   A. scientists have learned a lot about sheep's intelligence

   B. scientists have learned little about sheep's intelligence

   C. scientists can't do anything more about sheep's memory

   D. scientists don't have to research animals' memory

As is shown in the passage _________.

   A. sheep are among the weak animals

   B. it is not right for people to raise sheep in groups

   C. when sheep eat grass in the fields their minds may be active

   D. if people feel frightened, they may become more brave

When scientists found that sheep show similar abilities in many ways to humans they may think it _____.

   A. worrying          B. moving           C. frightening           D. interesting

After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.

　　There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.

　　Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (Although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.

　　If you have trouble falling asleep, some people recommend breathing very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion the counting sheep will put you to sleep!

1.A good title for this passage is ____.

A. Sleep            B. Dreams  　C. Good Health      D. Work and Rest

2.The word drowsy in the last paragraph means ____.

A. sick             B. asleep   　C. stand up          D. a little sleepy

3.This passage suggests that not getting enough sleep might make you _____.

A. dream more often   　B. have poor health   C. nervous     D. breathe quickly

4.During REM, ____.

A. your eyes move quickly  B. you dream C. you are restless　 D. both A and B

5.The average number of hours of sleep that an adult needs is ______ .

A. approximately six hours    B. around ten hours 

C. about eight hours          D. not described here

Do you know what kind of things the young people are reading? More and more  36  and parents have noticed another kind of pollution, which comes from the printed papers  37  on streets.
　　These printed things 38  newspapers but have hardly anything to do with 39 . You can only find reading materials badly made up there---some are too strange for anyone to 40 ,  others are frightening stories of something  41  .However, many of the young readers are getting interested in such  42  reading, which  43 them what they should pay for their breakfast and brings them nightmares（噩梦）and immoral（邪恶）ideas in  44 .  Homework is left  45 ,  and daily games are lost.
　　These sellers shout on streets selling their papers well. The writers, publishers and printers,  46  they are, we never know,  are  47 their silent money.
The sheep-skinned wolf’s story seems to have been forgotten once again .Why not 48 this kind of thing? Yes, both teachers and parents have asked each other for more strict control of the young readers.  49  ,the more you want to forbid it, the more they want to have a look at it. 50  you may even find  several children, driven by the curious natures,  51  one patched paper,  which has travelled from hand to hand.
　　It really does 52  to our society. It has already formed a sort of moral pollution. The  53  teachers and parents need more powerful support in their protection of the young generation. At the same time the young 54  need more interesting books to help them  55  those ugly papers.

Goats are amazing animals. They can survive just about anywhere. Altogether there are nine species of goats in the world.

Goats have more uses than you could ever imagine. Goat’s meat can be eaten and goat’s milk is becoming popular as a healthy choice to drink milk. Goat’s milk is easier to take in than cow’s milk and it is called universal milk as it can be used to bottle-feed most animals. In nutrition, it is also good. Goat’s skins are still used today to make gloves and other items of clothing. The initial reasons for domesticating (驯化) goats were to get goat’s hair, meat and milk. Goat’s skins were used up until the Middle Ages for making bottles to hold water and wine for people who were traveling or camping.

Just like sheep, goats are considered to be the first domesticated animal. The domestication process began over 10,000 years ago in a North Iranian town. A lot of people keep goats as pets nowadays.

Goats are easily trained and you can teach them to pull carts and walk on ropes. Goats are also known for escaping their pens (圈). If you have unsecured fencing, your goats will be interested in it and test it out and soon you will know where the openings are. Goats are also widely known for their ability to climb trees, although the tree generally has to be at a slight angle (角度).

If goats are raised correctly and trained from an early age, they never develop any bad habits. Goats will attack each other. However, if they’re corrected from an early age they never attack humans or other animals.

The passage is written mainly 　    　.

A. to tell people how to raise goats      B. to let people know more about goats

C. to explain how goats are domesticated    D. to describe goats of different uses

Why is goat’s milk called universal milk?

A. It is rich in nutrition and easy to take in.        B. It is good for our health.

C. It is suitable to feed most animals.   D. It is easy to get.

If you want to keep a goat as a pet, it is important 　    　.

A. to get along well with it             B. to find a professional trainer

C. to develop its ability       D. to train it when young

Which of the following words can best describe goats?

A. Curious and clever.        B. Unfriendly and naughty.

C. Careful and lazy.            D. Stubborn and quiet.

A desert is a beautiful land of silence and space. The sun shines, the wind blows, and time and space seem endless. Nothing is soft. The sand and rocks are hard, and many of the plants even have hard needles instead of leaves.

The size and location(分布) of the world’s deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas develop. But within the last 100 yeas, deserts have been growing at a frightening speed. This is partly because of natural changes, but the greatest makers are humans.

Humans can make deserts, but humans can also prevent their growth. Algeria Mauritania is planting a similar wall around Nouakchott, the capital. Iran puts a thin covering of petroleum(石油) on sandy areas and plants trees. The oil keeps the water and small trees in the land, and men on motorcycles(摩托车) keep the sheep and goats away. The USSR and India are building long canals to bring water to desert areas.

In this passage, “needles” refers to _______.

A. small, thin pieces of steel.

B. long, thin pieces of branches.

C. small pointed growth on the stem(茎) of a plant.

D. small, thin pieces of sticks.

Which of the following is NOT true?

A. The greatest desert makers are humans.

B. There aren’t any living things in the deserts.

C. Deserts have been growing quickly.

D. The size of the deserts is always changing.

People in some countries are fighting a battle against _______.

A. the growth of deserts B. the disappearance of desert plants

C. natural changes  D. congenital climate

We can guess that Mauritania and Algeria belong to _______.

A. Asian countries 　　　　       B. American countries

C. European counties　　　 D. African countries

Choose the sentence which best gives the main idea of the passage.

A. The deserts of the world are always changing.

B. Man is to take measures to control the growth of the world’s deserts.

C. Deserts are lands of silence and space.

D. Deserts have grown at a fast pace in the past 10 years.