This is a rabbit. It is running into its hole. You will say, “What has this to do with language?” Can you see the rabbit’s tail? When a rabbit sees something dangerous, it runs away. Its white tail moves up and down as it rurns and warns other rabbits that there is danger. The rabbit has told them something without making sound. It has given them a signal.

Many other animals use this kind of language. For example, when a bee has found some food, it goes back to its home. It cannot tell the other bees where the food is by speaking to them, but it does a little dance in the air.

____53____ A dog barks when a stranger comes near. Some birds make several different sounds, each with its own meaning. Sometimes we human beings speak in the same way by making sounds like “Oh!” or “Ah!” when we are frightened or pleased.

But we have something that no animal has a large number of words that have the meanings of things, actions, feeling or ideas. We are able to give each other information, to tell or inform other people what is in our mind or how we feel. ____54___ No animal has the wonderful power of language.

____55____ Perhaps he began by making sounds like those made by animals. Perhaps he made low rough sounds like a pig when he lifted something heavy. Perhaps he made sounds like those he heard all round him --- water splashing(溅), bee humming（发出嗡嗡声）, a stone falling to the ground. Somehow he learned to make words. As the centuries went by, he made more and more new words. This is what we mean by language.

____56____ Today there are about fifteen hundred different languages in the world. Each contains many thousand words. A very large English dictionary, for example, contains four or five hundred thousand words. But we do not need all these. To read a book you need to know only about two thousand words. Before you leave school, you will learn only a few thousand more.

根据短文内容，从A、B、C、D、E中选出最适合放入短文空缺处的选项，并将序号及相应答案写在答题纸上。选项中有一项是多余选项。

A.     Some animals say things by making sounds.

B.      No one knows how man learned to make words.

C.      People living in different countries made different kinds of words.

D.     Some people are good at listening to and communicating with animals.

E.      By writing words down we can remember things that have happened, or send messages to people far away.

                                 E

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air,water and sunlight. Animals and man cannot make food from air,water and sunlight. Animals get their food by eating plants and other animals.Therefore animals and man need plants in order to live.This is why we find that there are so many plants around us.

If you look carefully at the plants around you,you will find that there are two kinds of plants:flowering plants and non-flowering plants.

Flowering plants can make seeds（种子）. The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit. Most non-flowering plants do not grow from seeds. They grow from spores（胚芽）. Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores are all on wet and shady places, they usually grow into new plants.

72. The main idea of the first paragraph is that ______.

A. plants are important for life            B. plants cannot grow without air

C. there are many plants in the world       D. we can not live without water

73. Plants can make food from______.

A. flower, water and air                                 B. water, sunlight and air

C. air, water and soil                                         D. air, sun and light

74. What can we infer from the passage ？

A. Of all living things animals are most important 

B.Spores are seeds

C. All fruits of flowering plants have seeds  

 D.Without plants, man will die out

75. This passage may be taken from______.

A. a medicine book                     B. a novel

C. a science magazine                   D. an experiment report