八年级下册周练unit1

樟木头中学2020—2021学年度第二学期八年级英语周测试卷——Unit 1

(总分：100分；时间：30分钟)

班级______________ 姓名____________ 学号____________分数_______________

一、语法选择（20分）

It is __1_____cold and dry winter morning. When you wake up, you feel that your throat hurts.

You begin to sneeze and later you may cough. You __2_____have a cold! Wait a moment. Could it

just be a common cold or the flu (流感) that has been going around?

A cold gives you a runny nose and coughs. But it's usually easy to _3______. Some take

medicine while others drink herbal tea or chicken soup. Usually you feel better after a week.

_4____the other hand, the flu can be much more dangerous. It usually gives you fever. Sometimes it

can cause __5_____. According to an American magazine, the worst flu killed about 50 million

people from 1918 to 1919.

Don't __6_____. If you get a flu vaccine (疫苗)，it can stop you from getting the virus (病毒).

Flu vaccines work by giving the body a small number of flu viruses. This causes your body to

develop antibodies (抗体). So next time you get the flu, the antibodies should help you.

The fu virus changes every few years. Therefore, there are _7____types of flu, such as H1N1

and H5N1. The antibodies for one type of flu can't help us against all types of flu. That's __8____

we need to get the vaccine every year.

However, good health habits may also help stop you from developing a cold or flu. __9__ your

hands often helps stop you from getting viruses. _10___ is also important to get regular exercise

and eat healthy food. Al these can help you strengthen your immune system(增强免疫系统).

( ) 1. A. a B. an C. the D. /

( ) 2. A. can B. may C. should D. must

( ) 3. A. go with B. deal with C. along with D. talk with

( ) 4. A. On B. In C. Of D. As

( ) 5. A. die B. dead C. death D. dying

( ) 6. A. be worry B. worried C. worry D. worrying

( ) 7. A. so much B. so many C. too much D. much too

( ) 8. A. because B. why C. for D. so

( ) 9. A. Wash B. Washes C. Washing D. Washed

( ) 10. A. It B. That C. This D. Its

二、完形填空（20分）

It is reported that over 300 million people in China are near-sighted (近视的). As more children

have got eyesight __11______, their parents hope to solve the problem in some different ways, for

example, by correcting the ways when children _12_______ and sit. But in fact, one should start

with the exercise from one's feet. Here are three _13_________ to protect eyesight.

First, don't tie your shoes too closely. Try to wear comfortable and soft shoes and __14______ or

walking without shoes or socks at home. While you are traveling, try to __15_______ cloth shoes in

order to make your foot comfortable.

Second, walking on toes is good for one's __16______. It can improve one's eyesight. Studies

show that most of the ballet (芭蕾) performers' eyesight is good.

Third, rope skipping(跳绳)_17___ good for one's eyesight. When skipping the rope, one has to

move _18_____, making both the brain and the eyes excited. It may also make one grow _19_____.

Besides foot exercises, it is good to pull one's _20_______. Pulling the ears 20 times quickly is

also a good way. It can keep one's eyes healthy.

( )11. A. trouble B. break C. sickness D. life

( )12. A. play B. move C. speak D. read

( )13. A. messages B. roads C. ways D. ideas ( )14. A. clothes B. socks C. shirts D. trousers

( )15. A. put B. in C. dress D. wear

( )16. A. health B. body C. eyesight D. mind

( )17. A. is B. are C. does D. do

( )18. A. slowly B. quickly C. quietly D. heavily

( )19. A. tall B. taller C. high D. higher

( )20. A. hair B. foot C. hand D. ears

三、阅读理解（10分，每小题2分）

A new study shows that 86 percent of the world's rivers have been damaged by human activity.

The study was done by researchers from a university in Toulouse, France. They examined data on

over 2,500 rivers around the world. They did not look at rivers in the polar regions of the Arctic and

Antarctica or in deserts. The researchers looked into changes in biodiversity (生物多样性) over the

past 200 years. They discovered that biodiversity in over half of rivers had been seriously damaged

by humans. The researchers say there are many reasons for this damage. An important reason is the

introduction of new species of fish into rivers. Other reasons include pollution, dams (水坝),

overfishing, farming and climate change.

The researchers say the worst-hit rivers are in Western Europe and North America. This is

because these regions have large and rich towns and cities. The lead researcher said, "Rivers which

have the most economic development around them, like the Mississippi River, are the most strongly