Why are you always tired, do you know?First, ...

Why are you always tired, do you know?

First, if(如果) we can’t31 well, we will(将) be tired. But we are often too32 . We can’t finish our work in the day 33we 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 .

1.A. sleep        B. study         C. drink           D. eat

2.A. busy         B. free          C. lazy(懒惰的)    D. angry

3.A. because      B. if             C. so            D. although

4.A. early         B. late           C. quick         D. quiet

5.A. days         B. months        C. hours         D. minutes

6.A. ill           B. nice           C. good         D. healthy

7. A. movie        B. friend         C. teacher        D. doctor

8.A. too much     B. too many       C. much too      D. many too

9.A. too          B. again          C. also           D. once

10.A. better        B. best           C. good          D. well

八年级英语完型填空中等难度题查看答案及解析

Why are you always tired, do you know?

First, if we can't 　　　　　 well, we will be tired. But we are often too　　　　　 .We can't finish our homework in the day and　　　　 .we have to do it at night. We go to bed 　　 and we get up early in the morning for school or work. Most people need at least eight 　　　　 　 sleep or 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 sometimes we don't know we are ill. So if you are always tired, maybe you are not so　　 .You'd better go to see a 　　 .

Third, maybe you eat 　　　 00d, like hamburgers, meat, chocolate or coffee. If you are ill and tired after eating some food, please don't eat it again. You can eat more when you are well.

At last, if the air around you isn't nice and clean, you will feel tired. So please　 　 your windows often or go out fora walk, then you will feel 　 　 　 .

1.A. sleep　　 B.study　　 　 C.drink　　 D. eat

2.A.busy　　 B.free　　 　 C.lazy　　 　 D. angry

3.A. because B.if　　 　　　 C.so　　 　　 D. although

4.A. early　　 B.late　　 　　　 C.quick　　 D. quiet

5.A. days　　 B.months　　 　 C.hours　　 D. minutes

6.A.ill　　 　　 B.nice　　 　　 C.bad　　 　　 D. healthy

7.A.movie　　 B.friend　　 　　 C.teacher　　 D. doctor

8.A.too much B.too many　　 C.much too　 D. many too

9.A. tum　　 B.open　　 　　 C.close　　 　 D.keep

10.A. better　　 B.best　　 　　 C.good　　 D. Nice

八年级英语完形填空简单题查看答案及解析

---Mr. Wu, why can’t I always get good grades in study?

---Well, if you are _______ in class and read _______ books after class. I’m sure you will get better grades in the future.

A. more careful; more B. careful; fewer

C. careful; more　　 　 D. more carefully; more

八年级英语单项填空中等难度题查看答案及解析

--Mr. Wu, why can’t I always get good grades in study?

--Well, if you are ________ in class and read ________ books after class. I’m sure you　 will get better grades in the future.

A. more careful; more　　　 B. careful; fewer

C. careful; more　　　　　　 D. more carefully; more

八年级英语单项填空中等难度题查看答案及解析

Do you know why you sleep? You may think it’s because you’re tired. Or perhaps you’ve been told sleep is good for you. Yet no one knows exactly why or how people sleep.

Until the early 1950s, most scientists thought the body and brain rested during sleep. Then a scientist watched people sleep. He noticed that during periods of between 5 and 30 minutes each, sleepers’ eyes made rapid movements, as if they were watching something. He called these periods REM sleep, for Rapid Eye Movement. Periods when sleepers’ eyes did not move he called non-REM sleep.

Whenever the scientist woke people during REM sleep, they were having vivid dreams. Measurements showed that sleepers’ pulses（脉搏）went up quickly during REM sleep. Their breathing, heartbeat, and the blood going to the brain also increased. Far from being a time of rest, REM sleep is a time when the body is hard at work. Scientists still don’t know the reason for this. Some believe REM sleep makes learning easier. Babies spend a lot of time in REM sleep. Because of this, some scientists believe that REM sleep helps the brain grow. Others think REM sleep is a time for the brain to empty the day’s garbage.

One thing all the scientists agree on is that sleep is necessary. Without enough sleep, people make mistakes. Most major car accidents happen during the early morning hours, when people are sleepiest.

1.During REM sleep, a person’s breathing and heartbeat ________.

A．stop   B．increase     C．decrease   D．stay the same

2.Which word in paragraph（段落）3 means “colorful and lively”?

A．easier         B．empty         C．vivid   D．quickly

3.Which paragraph tells what happens when people don’t get enough sleep?

A．1         B．2         C．3         D．4

4.What is the main idea of the article?

A．REM sleep helps the brain grow.

B．REM sleep has been watched and recorded by scientists.

C．REM sleep is a time to empty the day’s garbage.

D．REM sleep is an active time when the body is hard at work.

5.You can decide from the article that REM sleep ________.

A．has a restful effect on people

B．can be avoided with lots of sleep

C．is something that all people experience

D．is something that all scientists agree on

八年级英语阅读理解中等难度题查看答案及解析

— Why do you look unhappy, Lucy?

— I can’t learn math well　　　　　　 I always work hard.

A. because　 B. and　　　　 C. although　　　 D. so

八年级英语单项填空中等难度题查看答案及解析

If someone is hurt, do you know what to do? Read about first aid for some medical problems.

If Someone Has a Nosebleed（流鼻血）...

●Using your fingers, press hard just under the bridge of the nose.

●Throw the head back if bleeding is not serious.

●Keep the patient（患者） quiet.

●Put ice around the patient’s nose.

●Place cotton（药棉） deep into the patient's nose.

If bleeding can’t be stopped, call for medical aid.

If Someone Faints（昏倒）...

●Place the patient on his back with his head lower than his feet.

●Keep the patient warm.

●Do not give the patient any food or water.

●Have the patient rest for at least l5 minutes.

If Someone Gets a Scorpion（蝎子）Sting（叮）...

●Place the patient on her back.

●Keep the patient calm. Do not allow the patient to walk or move, if unnecessary.

●Cover the patient with something warm.

●Put ice on the area of the sting.

●Call for medical help or take the patient to a doctor immediately.

1.There are ____________medical problems in this passage.

A. 2　　 B. 3　　 C. 4　　 D. 5

2.If a person faints we should ____________.

A. keep him quiet　　　　 B. press his nose hard

C. keep him warm　　　　 D. give him water and food

3.Ice is useful for ____________.

A. a nosebleed and a scorpion sting

B. a nosebleed and a faint

C. a scorpion sting and a faint

D. a faint and a bad cold

八年级英语阅读理解简单题查看答案及解析

—Why do you like cartoons?

—Because they are ________.

A. meaningless　　 B. boring

C. tiring　　 D. enjoyable

八年级英语单选题简单题查看答案及解析

You _______ help your parents do some housework, they are tired.

A. needn’t　　 B. should　　　　　 C. can’t　　　　 D. would

八年级英语单项填空中等难度题查看答案及解析

----Why are you so tired these days?

----- Well, I have _____homework to do.

A. too much　　　　　　 B. too many　　　　　 C. much too　　　　 D. many too

八年级英语单项填空简单题查看答案及解析