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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 is probably the migration of fish, which is called “salmon”(鲑鱼). This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it will return 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 place, but at other times we don’t. Maybe living things just like to travel.
小题1:The reason for most of the animals to move is ________.
| A．to get away from un-crowded places | B．to find their own parents |
| C．to want to kill themselves | D．to find food more easily |
| A．In fresh water. | B．In salt water. |
| C．In mountain homes. | D．In its birthplace. |
| A．When their homes become too crowded. |
| B．When the season of the bad weather arrives. |
| C．When they want to give birth. |
| D．When their food is eaten up. |
| A．迁徙 | B．习性 |
| C．运动 | D．寻觅 |
The summer holidays are the （4） time of the year for most children.The weather is usually good,so children can spend most of their time （5） outside.If one lives in the countryside,he can go and play in the woods or in the fields.If he （6） in a big town,he can usually go to a park to play.?
The best place for children to spend their summer holidays is the （7） .Some chihdren are lucky enough to live near the sea. （8） for those who do not live there,if they have the luck to stay in one of the big seaside towns for a week or two,they will （9） it all the following school year.?
Now, （10） makes children like the seaside so much?I think they are the sands,the sea and the sun.The feeling of sand under their feet,salt water on their skin,and the warm sun on their backs makes them very happy.?
（1）.A.arrive B.start C.begin D.end?
（2）.A.on B.by C.in D.at?
（3）.A.love B.see C.watch D.return?
（4）.A.best B.better C.worst D.worse?
（5）.A.missing B.working C.playing D.studying?
（6）.A.loses B.enjoys C.lives D.reaches?
（7）.A.village B.seaside C.city D.park?
（8）.A.But B.Unless C.Or D.And?
（9）.A.hear from B.speak to C.agree with D.talk about?
（10）.A.that B.which C.who D.what???
查看习题详情和答案>>完形填空
When July comes, children know they'll have their examinations and the school year will 1 soon. Boys and girls willhave nearly a two-month holiday, and they'll leave school 2 train or by car to 3 their parents.
The summer holidays are the 4 time of the year for most children. The weather is usually good, so children can spend most of their time 5 outside. If one lives in the countryside, he can go and play in the woods or in the fields. If he 6 in a big town, he can usually go to a park to play.
The best place for children to spend their summer holidays is the 7 . Some children are lucky enough to live near the sea. 8 for those who do not live there, if they have the luck to stay in one of the big seaside towns for a week or two, they will 9 it all the following school year.
Now, 10 makes children like the seaside so much? I think they are the sands, the sea and the sun. The feeling of sand under their feet, salt water on their skin, and the warm sun on their backs make them very happy.
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