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was young. Every morning, lots of sparrows liked singing and j 2 in the trees outside my window,
while the swallows were busy flying out to f 3 food for their babies. Sometimes in the afternoon, I
could even see eagles f 4 in the sky.
After twenty years, many of them cannot be seen now. I can seldom see the eagles o 5 the
swallows. The n 6 of the sparrows is getting smaller. Only some of t 7 sing in the morning.
Why do the birds leave here? First I think it is because the environment is becoming worse now.
The birds can't find e 8 food for themselves and their babies. Second I think it is because people
often k 9 them for food.
Without the birds around, we won't feel happy any more. So we must p 10 them. Why don't we
do something to help today?
B. For about 10 years.
C. For less than 20 years.
B. They were near the window.
C. They were in their home.
B. They were busy jumping and flying.
C. They were busy singing.
B. Yes, and there are more than before.
C. No, he can't.
B. Because they can't find food easily and people often kill them.
C. Because they can't give people more food.
B. 请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。
【小题1】Lucy said that Mr. White offered her some _________ suggestions.
【小题2】Those volunteers always think more of others than of _________ .
【小题3】Mr Yang, I fell ill last night and didn’t finish my homework. I’m ________ sorry about it.
【小题4】 —Why do the beautiful birds ________ so fast?
—Because of lack of food.
【小题5】It’s known to us all that ________ need food, water and air to survive.
B. 请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。
1.Lucy said that Mr. White offered her some _________ suggestions.
2.Those volunteers always think more of others than of _________ .
3.Mr Yang, I fell ill last night and didn’t finish my homework. I’m ________ sorry about it.
4. —Why do the beautiful birds ________ so fast?
—Because of lack of food.
5.It’s known to us all that ________ need food, water and air to survive.
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We know that many animals do not stay in one place. Birds, fish and other animals move from one place to another at a certain time. They move for different reasons: most of them move to find food more easily, but others move to get away from places that are too crowded.
When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration (迁徙) is probably the migration of fish, which is called “salmon”(蛙鱼). This fish is born in fresh(淡的) water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.
Recently, scientists have studied the migration of a kind of lobster (龙虾). Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go. So, sometimes we know why humans and animals move from one place to another, but at other times we don’t. Maybe living things just like to travel.
1. Most animals move from one place to another at a certain time to _______.
A. enjoy warmer weather
B. find food more easily
C. find beautiful places
D. get away from crowded places
2. The underlined word “There” in the second passage means “___________”.
A. in cold water B. in warm water
C. in salty water D. in fresh water
3. Why do the lobsters get into a long line to move?
A .It’s a safe traveling way.
B. The weather is bad.
C. It is still unknown to us.
D. They just don’t want not to be too crowded.
4. The passage is mainly about ________________.”
A. the migration of animals
B. the migration of fish
C. the travel of animals
D. the secret of nature
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