摘要:We go to bed at to ten. A.fifteen B.quarter C.a quarter D.fiveteen

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Why are you always tired, do you know?
First, if(如果) we can’t   31  well, we will(将) be tired. But we are often too   32  . We can’t finish our work in the day  33   we have to do it at night. We go to bed   34  and we get up early in the morning for school or work. Most people need at least(至少) eight   35   or some more. If we sleep for only five or six hours a night, we will be tired.
Second, when we are ill, we will be tired. But we don’t know we are ill. So if you are always tired, maybe you are not so    36  . You’d better go to see a    37  .
Third, maybe you eat    38   food, like hamburgers, meat, chocolate or coffee. If you are ill and tired after eating some food, please don’t eat it    39   to see if you are well. 
At last, if the air around you isn’t nice and clean, you will feel tired. So please open your windows often or go out for a walk and you will feel    40   .

【小题1】
A.sleepB.studyC.drinkD.eat
【小题2】
A.busyB.freeC.lazy(懒惰的)D.angry
【小题3】
A.becauseB.ifC.soD.although
【小题4】
A.earlyB.lateC.quickD.quiet
【小题5】
A.daysB.monthsC.hoursD.minutes
【小题6】
A.illB.niceC.goodD.healthy
【小题7】
A.movieB.friendC.teacherD.doctor
【小题8】
A.too muchB.too manyC.much tooD.many too
【小题9】
A.tooB.againC.alsoD.once
【小题10】
A.betterB.bestC.goodD.well

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Air is always around us. It is around us when we walk and play. From the time we are born, air is around us. When we sit down, it is around us. When we go to bed, air is also around us. We live in air.

All the animals and plants need air. Living things can’t live without air. We can live without food or water for a few days, but we can not live for more than a few minutes without air. We breathe in air. When we are walking or running, we need more air. When we are asleep, we need less air.

We live in air, but we can’t see it. We can only feel it. We can feel it when it is moving. Moving air is called wind. How can we make air move? Here is one way. Hold and open a book in you hand in front of your face. Close it quickly! What you feel is the air.

1._________ need air.

A. Some of the animals????????????? B. All the things

C. Some of the plants????????????? D. All the animals and plants

2.We can live for a few days __________.

A. without air????????????? B. without food or water

C. without food or air????????????? D. without air or water

3.We need _________ air when we are asleep.

A. less????????????? B. no????????????? C. most????????????? D. a lot of

4.Which of the following sentences is TRUE(对的)?

A. Sometimes we don’t live in air.????

B. Air is not around us when we go to bed.

C. We can live happily without air.???

D. We need more air when we are working or running.

5.We live in air, but we can’t ________ it.

A. look????????????? B. see????????????? C. get????????????? D. feel

 

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