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（遷移）is probably the migration of the fish, which is called “salmon”. 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 returns to its birthplace in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mice. 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 lobsters（龍蝦）. Every year, when the season of 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.    

Most animals move from one place to another at a certain time to __________ .

A. give birth              B. enjoy warmer weather  

C. find food more easily     D. find beautiful places

The fish called “salmon” spends a long life in __________ .

A. salt water         B. rivers          C. fresh water       D. its birthplace

The mice in northern Europe move when __________ .

   A. they give birth                   B. the weather is bad

  C. the place gets too crowded         D. they haven’t enough food

The lobsters move __________ .

   A. to the fresh water              B. to the sea floor

   C. at a certain time               D. to find more food

What is the main idea of the passage?

   A. Animals move in order to find food more easily.

 B. The migration of the fish called “salmon” is the most famous migration.

   C. Living things move from one place to another because they like to travel.

D. Sometimes we know why and how living things move from one place to another, but sometimes we don’t.

【小題1】C

【小題2】A

【小題3】C

【小題4】C

【小題5】D


解析:

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1.The new law makes life difficult for              .

A．Obama

B．tobacco industry

C．White House

D．US Food and Drug Administration

2.What do we know about Obama?

A．He no longer smokes

B．He still smokes as usual

C．He began to smoke at eighteen

D．He is trying hard to give up smoking

3.According to the passage, Obama is most concerned about           ．

A．children       B．officials

C．his family        D．businessmen

 

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US President Barack Obama has just made life more difficult for cigarette makers．He has just signed a law that will set tough new rules for the tobacco industry．The new law gives the US Food and Drug Administration the power to strictly limit the making and marketing of tobacco products．

At a White House signing ceremony Monday, Obama said that he was among the nearly 90% of smokers who took up the habit before their 18 th birthday．

Obama, who has publicly struggled to give up smoking, said he still hadn’t completely kicked the habit．Every now and then he still smokes in secret．

“As a former smoker I struggle with it all the time．Do I still smoke sometimes? Yes．Am I a daily smoker, a constant smoker? No．” Obama said at a news conference．

“I don' t do it in front of my lads．I don 't do it in front of my family．I would say that I am 95% cured, but there are times when I mess up, " he said．

"Once you go down this path, it' s something you continually struggle with, which is exactly why the law is so important．The new law is not about me, it' s about the next generation of kids coming up．What we don ' t want is kids going down that path," he said．

Nearly 20% of Americans smoke and tobacco use kills about 440,000 people a year in the United States due to cancer, heart disease, and other serious diseases．

1.The new law makes life difficult for             ．

A．Obama

B．tobacco industry

C．White House

D．US Food and Drug Administration

2.What do we know about Obama?

A．He no longer smokes．

B．He still smokes as usual．

C．He began to smoke at eighteen．

D．He is trying hard to give up smoking．

3.According to the passage, Obama is most concerned about           ．

A．children

B．officials

C．his family

D．businessmen

 

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