完形填空

　Tom liked to find out how things worked very much.

　One morning when young Tom was five, he went out 　1　 his playmates. But no one was in the street. So he went to ask the boy of his neighbour (邻居). When he walked into the gate of the neighbour's, he saw they 　2 　breakfast. So he 　3 　wait out of the room.

　Suddenly he saw a hen (母鸡) sitting in an old basket by the window. He was 　4 　. Why was she sitting there? What 　5 　earth was she doing? He went over as he was thinking. The hen was frightened and ran away. Tom sat down and 　6 　carefully. He put his hands on the eggs. They were warm. After a while he saw a young chick climbing out of an egg. He understood that the hen was hatching (孵鸡). The 　7 　could make a chick 　8　 from an egg. So he ran home at once, took out some eggs, put them in a basket, sat on them and then began hatching. When his father saw this at noon, he asked 　9 　Tom was doing that for. Tom said 　10 　. Instead, he asked his father why he was not able to hatch chicks while hens could.

A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 　1　 in Hong Kong, these trees were cut down and burnt. Now there is 　2　 forest left, though there are still some small areas covered with trees. We call these woods.
Elephants, tigers and many 　3　 animals were living in the thick forest. When people came to live in Hong Kong, the 　4　 began to die out. Early farmers grew rice and 　5　 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed 　6　 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. So did 　7　 of the wolves and tigers. Monkeys and many other animals soon 　8　 in the same way.
You might think that there are no longer any animals in Hong Kong 　9　 in the zoos. But there are still about 36 different animals 　10　 there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals 　11　 a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet（英尺） 　12　. They make a noise rather like a dog 　13　. In Hong Kong the barking deer has only a real enemy--　14　. People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important 　15　 people to protect wild animals.

A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 　31　 in Hong Kong, these trees were cut down and burnt. Now there is　32　 forest left, though there are still some small areas covered with trees. We call these woods.

　　Elephants, tigers and many　33　 animals were living in the thick forest. When people came to live in Hong Kong, the　34　 began to die out. Early farmers grew rice and　35　 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed　36　 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. 　37　 did most of the wolves and tigers. Monkeys and many other animals soon　38　 in the same way.

　　You might think that there are no longer any animals in Hong Kong　39　 in the zoos. But there are still about 36 different animals　40　 there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals　41　 a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet　42　. They make a noise rather like a dog　43　. In Hong Kong the barking deer has only a real enemy--　44　. People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important　45　 people to protect wild animals.

A thousand years ago Hong Kong was covered by a thick forest. As more and more people came to 　31　 in Hong Kong, these trees were cut down and burnt. Now there is　32　 forest left, though there are still some small areas covered with trees. We call these woods.
　　Elephants, tigers and many　33　 animals were living in the thick forest. When people came to live in Hong Kong, the　34　 began to die out. Early farmers grew rice and　35　 pigs and chickens in the valleys. They cut down the trees and burnt them. They needed　36　 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. 　37　 did most of the wolves and tigers. Monkeys and many other animals soon　38　 in the same way.
　　You might think that there are no longer any animals in Hong Kong　39　 in the zoos. But there are still about 36 different animals　40　 there. One of the most interesting of Hong Kong's animals is the barking deer. These are beautiful little animals　41　 a rich brown coat and a white patch (补丁) under the tail. They look like deer but they are much smaller. They are less than two feet　42　. They make a noise rather like a dog　43　. In Hong Kong the barking deer has only a real enemy--　44　. People hunt these little animals though it is illegal (违法的). There are now not many barking deer left. So it is important　45　 people to protect wild animals.