题目内容

Many young people can use computers, but few of them know how to look after them. Remember the following when you use your computer.

Keep your computer in a cool, dry room. Too much or too little heat is bad for your computer. Wet is also bad for them. Most computers work best at a temperature(温度)of 5℃~30℃.

Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer and can cause many problems.

Don't eat or drink when you are near your computer. Pieces of food and a little water in the keyboard can also cause many problems.

Make sure that the keyboard(键盘) and the screen(屏) are the correct height for you. If they are not correct, you will get backache(头疼).

Make sure the screen is the correct distance(距离) from your eyes. If you wear glasses, make sure these glasses are correct for using with the computer. Some people use a different pair of glasses when they use a computer.

Keep your screen clean and do not have it too bright. A dirty screen can hurt your eyes. A very bright screen can also be bad for your eyes.

1.This passage(文章) is about_______.

A. how to use a computer B. how to look after your computer

C. how to clean your computer D. how to buy a computer

2.Don't eat or drink near a computer because__________.

A. food and water can dirty your screen

B. some food or a little water in the keyboard may cause problems

C. eating and drinking is bad for your computer

D. computer can work best at a temperature of 5℃~30℃

3.Your computer can work well if you_________.

A. clean your screen carefully and make it very clear and bright

B. smoke when you use your computer

C. put your computer in a cool, dry and clean room

D. don't eat or drink

4.You will hurt your eyes if you_________.

A. put on a pair of special glasses when you use your computer

B. make sure there’s a correct distance between you and your computer

C. never clean the screen of your computer

D. don't have your screen too bright

5.After you read the passage, you will ________when you use your computer.

A. clean your room every day

B. be careful to put the keyboard and the screen in the right place for you

C. do not smoke at any time

D. remember to use the computer without anyone nearby

练习册系列答案
相关题目

Uncle Li and Uncle Wang are good friends. They live next to each other and their farms are both at the foot of the mountain. So they can help each other. But neither(两者都不)of them likes to use his head. They work hard but they are both poor. Most villagers(村民) build new houses, but they still live in the low and broken houses. They never find out why.

Once Uncle Li went to town to buy some medicine(药)for his wife. In the town he heard the apples in a city were expensive. He told Uncle Wang about it when he went back. They decided to carry some apples to the city. They borrowed some money from their friends and bought nearly 1,000 kilograms of apples in the villages and carried them to the city on a tractor(拖拉机). Bad luck! A lot of apples were in the city when they arrived. A few days later they had to sell them at a low price. They felt unhappy and returned to their village.

"I can't understand why we sustained losses in business (生意上蒙受损失)while others always profit (盈利)" Uncle Li asked one day.

"The tractor was too small" Uncle Wang said without thinking. "We'll carry more apples on a truck next time!"

"I agree!" said Uncle Li. "How foolish(傻) we were!"

1.Uncle Li and Uncle Wang live in the low and broken houses because ______.

A. they hope to save money B. they're both poor

C. their farms are at the foot of the mountain D. they're not far from their farms

2.The two farmers carried the apples to the city to _________.

A. make a journey B. visit some places of interest

C. meet their friends D. make a profit

3.The two farmers had to sell their apples at a low price because ________.

A. theirs weren't as good as the others' B. theirs were much less than the others'

C. a lot of apples were in the city D. they forgot to carry them on a truck

4.Uncle Li and Uncle Wang were unhappy because _________.

A. they had sustained losses in business B. they had lost some money in the city

C. something was wrong with the tractor D. other people profited in the city

5.Which of the following is true?

A. The two farmers found out why they were poor.

B. The two farmers will soon get rich.

C. Neither of the farmers is clever.

D. The two farmers decided to buy a truck.

Have you ever thought about your body changes? Up to about the age of eight or nine, girls and boys look almost _____. They have similar shaped bodies(相似的形体) and their______ sound alike. As they grow, all their organs (器官) grow, _____.

At the same time after the age of ten, often at eleven or twelve, both _______ bodies start changing. This time of change _____ puberty(青春期). The changes mean their bodies are getting ready so that they’ll be able to have children when they are _____ enough.

But the changes don’t _____ everyone at the same time. Each person has his or her own body changing timetable. By the time they’re eighteen, they should be finished. Girls start changing some years _____ than boys. Until they’re fifteen or so, they grow faster than ____ of the same age. As years go by, boys can catch up and grow _______. What’s more, their faces become fuller. Not only the changes you can see are happening, but also other important changes that you can’t see are happening inside your body at the same time.

1.A. the same B. different C. strong D. wonderful

2.A. personalities B. voices C. feelings D. looks

3.A. either B. also C. too D. neither

4.A. girls’ B. boy’s and girl’s C. boys’ D. boys’ and girls’

5.A. called B. calls C. was called D. is called

6.A. strong B. healthy C. old D. clever

7.A. take place B. happen to C. come out D. care about

8.A. later B. fewer C. less D. earlier

9.A. boys B. teenagers C. children D. girls

10.A. taller B. shorter C. younger D. funnier

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网