Experts(专家) say that students usually need eight to ten hours’ sleep at night, but most Chinese students do not get enough sleep. Some Chinese parents are usually glad to see their children studying late. They will think their children work very hard, but not all parents are happy about this. Once a mother told us that every morning her 10-year-old boy put up one finger (手指) with his eyes still closed, begging(请求) for one more minute to sleep. Like thousands of students “ early birds” in China, he has to get up before six every morning.

A report shows that without a good night’s sleep, students seem to be weaker (虚弱) than they should be. Many students have fallen asleep during class at one time or another. Too much homework is not the only reason why students stay up late. Some watch TV or play the computer games late into the night.

Experts have ever said that the students should develop good study habits. So some clever students never study late, they are able to work well in class.

1.The 10-year-old boy begged for more minute to sleep because__________.

A. he didn’t have enough sleep

B. it wasn’t time for him to get up

C. he didn’t want to go to school

D. he wanted his mother to wake him up

2.In this passage we know if students don’t get enough sleep, they may________.

A. become too weak to sleep B. not work well in class

C. go to bed early D. be weak in English

3.In this passage “early birds” means “persons who ______________”

A. get up early B. get up late

C. sleep less D. don’t want to sleep

4.“Stay up late” here means “_____________”

A. study late B. watch TV late C. not go to bed until late D. stay outside

5.According to the passage, which of the following is right?_________

A. If you want to study better, you must work hard at night.

B. Sleeping less means working hard.

C. Some clever students are able to work well in class because they have good study habits.

D. Students don’t have enough sleep because they have lots of homework to do.

The Smallest Life Around Us

Tiny plants and animals live all around us.We cannot see them because they are so small,but they are everywhere. They live in the soil,in the air,and in rivers and oceans.They grow on mountains and in caves.Some live in the ice at the north and south poles; some live where it is very hot.They are found throughout cities and in the country. They grow on other plants and animals.Some are even living on you,on your skin,hair,and inside your body,in your mouth,nose,and all through your body.

These tiny plants and animals are called microbes.The word microbe is made from two other words:micro,meaning small,and bios,meaning life.So,microbe means small life.

Microbes have been on earth for a very long time.They may have been the first forms of life to be alive.Today there are more microbes in the world than all other living things.

People did not know microbes had existed(存在) long.They were too small for them to see.But people did see many changes in their world﹣important changes.And they did not know what caused them.They saw food that they kept too long change color and begin to smell bad.They saw cuts and wounds grow red and painful and become worse. They saw old plants and leaves and trees crumble apart on the forest floor and disappear into the soil.Such changes were a natural part of the world,but people did not understand them.They did not know these changes were evidence(证据) of tiny plants and animals growing all around them.

1.Why couldn't people see microbes?

A. Because they are too small.

B. Because they live inside our body.

C. Because they live far from humans.

D. Because they may have been the first forms of life to be alive.

2.The underlined phrase" crumble apart" in the last paragraph means"   ".

A. grow taller B. change into soil

C. break into tiny pieces D. become colorful and energetic

3.Choose the answer that completes the web below.

A. Microbes are very small B. Microbes are all around us

C. People can't see microbes D. Food begins to smell bad

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