完形填空(12分)

　　The world of out-of-doors is full of secrets．And they are so interesting that quite a lot of people are busy 　　1　　 them．All 　　2　　 us are birds, animals, trees and flowers．The facts about how they live and grow are as interesting as anything could be．

　　Do you know that one of the great presidents(总统)of the U．S．A．

　　spent hours and hours studying birds? A business man who lives near New York City became so interested in insects(昆虫)that he began to 　　3　　 them．He now has over one thousand different kinds carefully kept in glass boxes．

　　Come then 　　4　　 me, and I will help you find some of Nature' s secrets．Let' s go quietly 　　5　　 the woods and fields．Here we shall find how a rabbit(兔子) 　　6　　 the other rabbits that there is danger．We shall follow a mother bear and her young ones as they search for food and get ready for their long winter 　　7　　 ．We shall watch bees dancing in the air to let the other bees know where they can find food．I will show you 　　8　　 interesting things, but the best thing that I can teach you is to keep your eyes and ears 　　9　　 when you go 　　10　　 doors．Nature 　　11　　 her secrets only to people who look and listen 　　12　　 ．

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完形填空

Martin is an American boy．He is eight years old．His parents 　　1　　 five years ago and he is now living with his grandmother in New York．

　　One morning, Jimmy, one of his classmates, came to his home with an exercises book in his hand．Jimmy lives in a house not far from Martin's．They often go to school together．

　　"Would you help me with this maths problem?" Jimmy said as soon as he came into the room．"It's too hard for me and I can't work it out．"

　　"Let me try, " Martin said．"I 　　2　　 it isn't too hard for me．"

　　Martin tried his best but he couldn't work it out, 　　3　　．

　　"If we had a small computer, all the problems would be 　　4　　 for us to do．" Jimmy said．

　　"A small computer…, " Martin thought for a minute, then he said, "I've got an idea．We can 　　5　　 one in a shop．"

　　"A computer is very 　　6　　, and we don't have enough money．"

　　"That's OK, " said Martin．"We can ask the new president(总统)　　7　　 some money．He said he would help anyone in trouble．I' m sure he will help us．He is very rich, you know．"

　　So they decided to write a letter to the new president．Soon the letter was finished and they hurried to the post office．

　　In front of the post office stood a small box．They 　　8　　 the letter into the box carefully and went home happily．

The next morning, they 　　9　　 the post office on their way to school．They found 　　10　　, the box was not a post box but trash-box(果皮箱)．

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(完形填空)

Many years ago, people didn't know how to (1)　 their teeth. They used charcoal (木炭), lemon juice, ash (the stuff left over from fire) or tobacco and honey (2)　together to clean their teeth! It was only about 100 years ago (3) someone(4)　 toothpaste to clean teeth. Most people don't know that snails (蜗牛) have teeth. But they (5) . In fact, they have around 25,600!

Rats chew to wear out their front teeth. If they lose a top tooth, the bottom tooth will grow up in its place. And it won't (6)　! It will grow right into their brain. John Massis (7) Belgium (比利时) was famous for his strong teeth. On April 4, 1974, John Massis went to New York to (8) his teeth. He bit down on a long thick rope. The rope was tied to two trains. They weighted 80 tons. He (9) the trains away for several metres with his teeth. People have used fake teeth for many years. (10)　ndline, they used other people's teeth, animals' teeth, and wooden teeth! The (11)　 president (总统) of the United States, George Washington, had bad teeth. (12) he used fake ones made from animal teeth. But they hurt when he (13) ndline. And they went bad after a short time. Queen Elizabeth I of England used to have a serious tooth (14) .(15)　her time, fake teeth were hard to find in England. She was always in pain. Her fake teeth were made out of porcelain (瓷), which is often used to make plates. They were difficult to eat with.

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