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发布时间:2014-02-10 16:53:39  


Unit 4 Topic 1


Ⅰ. 单项选择。(10分)

( )1. It’s difficult to solve the problem. Do you have any good ideas to _______ with us?

A. agree B. share C. come D. live

( )2. —You are standing too near to the TV. Can you move a bit _______?

—OK, Mom. Is it all right here? A. faster B. slower C. farther D. nearer

( )3. The rivers in the countryside are cleaner than _______ in the city.

A. this B. that C. these D. those

( )4. Your classroom is so dirty. Everyone should keep it _______.

A. dry B. open C. quiet D. clean

( )5. There were _______ animals in the forest many years ago.

A. thousand of B. thousands of C. three thousand of D. three thousands of

( )6. Of the two boys, Tom is _______.

A. tall B. the taller C. tallest D. the tallest

( )7. Blue whales are the largest and heaviest animals in the world, but they _______ the smallest sea animals.

A. feed in B. live in C. feed on D. fed on

( )8. —Zhou Fang, can you finish your homework better with _______ time?

—I think I can. A. few B. fewer C. little D. less

( )9. As we know, water is very important _______ us.

A. of B. to C. on D. with

( )10. —What do you think of this film?

—Wonderful! No film is _______. A. good B. well C. better D. best



Plants are very important. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals can get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. So animals and man need plants in order to live. This is why there are so many plants around us. There are two kinds of plants: flowering plants and non-flowering plants. Almost all the trees around us are flowering plants. You can know some trees from their flowers and fruit. Non-flowering plants do not grow flowers. You can not see many non-flowering plants around you.

If you look carefully at the plants around you, you will find that there are many kinds of plants. Some plants are large and some are small. Most of them are green. Thanks to the plants around us, we can live on the earth.


( )26. We need many plants around us because _______.

A. plants can grow easily B. plants are green C. we can get what we need from plants D. we like all kinds of plants

( )27. There are so many plants around us because _______.

A. man doesn’t need any plants B. most animals don’t eat plants C. man and animals need plants to live D. the earth will become more beautiful

( )28. There are _______ non-flowering plants than flowering plants around us.

A. much fewer B. much more C. much larger D. much better

( )29. Which of the following does NOT come from a plant?

A. Basket. B. Bread. C. Cabbage. D. Stone forest.

( )30. Which is the best title (题目) of this passage?

A. Plants around us C. Live on Earth B. Man and Animals D. Food and Plants


How do animals communicate (交流) with each other? They have special languages. In fact, they are using signals (信号). Different signals have different meanings.

For example, when a bee (蜜蜂) finds food somewhere, it flies home quickly. It can’t speak, but it can tell others by dancing. Other bees will know where and how far the food is.

Some animals show their feelings by making sounds. For example, when a dog is angry, it barks (吠). At this time, you’d better stay away from it. Birds can make several sounds to show different meanings. Sometimes we humans show feelings by making sounds instead of by speaking. For example, when we feel painful (疼痛的), we cry“Oh!”or“Ouch!”.

We humans have languages and words. We can communicate face to face by speaking. We can write down what happened in order to remember clearly. We can also send (寄) messages to people far away. But animals can’t.


( )31. Humans and animals both have their own languages.

( )32. A bee can tell others the messages by singing songs.

( )33. Birds can make different sounds to show different meanings.

( )34. All the animals can communicate with others far away.

( )35. When a dog is not happy, you’d better keep away from it.


Now many people like to keep dogs as their pets. But how did dogs become humans’ close friends?

In some places of Europe (欧洲), about 10,000 years ago, some wild (野生的) dogs often came to human’s houses to find food. The wild dogs looked different from the ones today. They looked like wolves (狼). At first, they felt ①always stood and looked for a short time. Then tpeople caught them. People trained them and the young dogs grew up with the help of people. Slowly, the wild dogs became home dogs. They could make home safe when people were away. They helped people hunt (狩猎). They helped people keep warm on cold nights. ②people pull (拉Now there are more than 400 different kinds of dogs in the world. And they look different from each other. The number and kind are growing all the time. Today, some people mainly (主要地) regard dogs as pets. In fact, dogs are really our close friends. We should protect them from being killed.



( )36. People began to train dogs with young wild dogs.

( )37. Dogs are mainly used for hunting today.


( )38. A. 兴奋的 B. 害怕的 C. 强壮的 D. 有趣的


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