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When a rabbit sees something dangerous, it runs away. Its tail moves up and down as it runs. When other rabbits see this tail moving up and down, they run too. They know that there is danger. The rabbit has told them something without making a sound. It has given them a signal（信号）. 
   Many other animals use this kind of language. 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. This tells the bees where the food is. 
Some animals say things by making sounds. A dog barks, for instance, when a stranger comes near. A cat purrs （咕噜咕噜） when pleased. Some birds make several different sounds, each with its own meaning. 
   But human beings have something that no animal has ---a large number of words which have the meanings of things, actions, feelings 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. By writing words down we can remind （提醒）ourselves of the things that have happened, or send messages to people far away. No animals can do this. No animals have the wonderful power of language. 
   No one knows how man learned to make words. Somehow he learned to make them. As centuries went by, he made more and more new words. This is what we mean by language. 
   People living in different countries made different kinds of words. Today there are about fifteen hundred different languages in the world. A very large English dictionary, for example, contains four or five hundred thousand words. But we don not know all these. The words we know are called vocabulary. We should try to make our vocabulary larger. Read as many books as possible. When we meet a new word, look it up in the dictionary. A dictionary is the most useful book.
36. A rabbit moves its tail up and down in order to __________.
A. tell other rabbits where the food is     B. warn other rabbit of danger 
C. make itself look strong               D. help itself to run fast
37. A dog can tell something by _________.
A. singing    B. dancing   C. jumping  D. barking 
38. Only human beings are able to ______.
A. give others information            B. tell others how they feel
C. express their feelings with words    D. make different sounds, each with its own meaning
39. The underlined word “contain” in Paragraph 6 probably means ______.
 A. covers    B. checks   C. changes  D. catches
40. According to the passage, how can we make our vocabulary larger?
A. By talking much to others                    B. By learning more languages
C. By looking up any word in a dictionary         D. By doing as much reading as possible
D
An earthquake is one of the most common natural disasters. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members. 
Fragile items, like those made of glass should usually be placed on a lower surface, near the ground instead of placing them on cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you. 
There is a strong chance of short circuits （短路） and fire breakouts during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens.
During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the staircases at all times. 
If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object. 
If trapped in debris (瓦砾堆), cover your mouth with a handkerchief or clothing. Tap on a pipe or wall so rescuers can find you. Use a whistle (哨子) if one is available. Never shout for help. Shouting can cause you to breathe in dangerous amounts of dust. Do not light a match because you may burn yourself. Do not move about or kick up dust. 
41. The purpose of the passage is to tell readers _____.
A. the damage caused by earthquakes      B. the rescue work after earthquakes
C. what to do about earthquakes          D. how to prevent earthquakes
42. The underlined word “Fragile” in Paragraph 2 probably means _____.
A. easily broken  B. easily found       C. expensive     D. heavy 
43. To reduce the injury from the earthquake, items made of glass should be put _____.
A. on cupboards B. in the bedroom
C. on a lower surface                  D. where children can’t reach them
44． During the earthquake, people are advised to _____.
A. go out the building at once            B. turn off power and gas immediately
C. take shelter under a tree              D. drive to a safe place 
45. What should people NOT do when they are trapped in debris?
A. Cover their mouth with a handkerchief.    B. Tap on a pipe or wall for help.
C. Use a whistle for help.                 D. Light a fire for help.
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