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

You love reading, but you've read all your books four times, and are tired of reading the same ones. You're planning to go to the library,but don't know what kind of books to get. With the right knowledge(知识),it's easy to choose a good book!

Answer these questions first. What are your interests? Type your hobbies into your library catalog search. By doing this, you will find books that you might like.

Search your house next. Often good books are quietly collecting dust(灰层)in your own house. Maybe you forget about one,or someone who is living with you has some good books. Also by searching your house, you can find some books that you can read, and they won't even cost you any money.

Then join a book club,please. Being a book club member is often a way to experience(体验)new books with other members. Joining a book club or setting up a book club helps you know who else likes the same books as you,you can also read and discuss the books with others.

Finally,read the first part of each book. Of course,if you have many books, this can be time-consuming. Reading the first part of a book can help you know what books and types of books that you like,and you won't have a hard time looking for books again.

1.This article is mainly written to help you .

A. buy a good book B. read a good book

C. choose a good book D. borrow a good book

2.The underlined sentence in the third paragraph maybe means that .

A. you don't often clean the house B. you haven't touched the books for a long time

C. your friends don't read your books D. your friends don't visit your house

3.What is NOT mentioned about joining a book club ?

A. Experiencing new books with other members.

B. Knowing who else likes the same books as you.

C. Reading and discussing books with others.

D. Helping you make more and more close friends.

4.What does the underlined word “time-consuming” in the last paragraph mean?

A. Using a little time. B. Wasting a little time.

C. Taking much time. D. Saving much time.

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