问题 单项选择题

汽车行驶中,车速越高后桥响声越大,急剧改变车速或上坡时也发响,而滑行时响声减小或消失,则为主减速器齿轮啮合间隙()所致。

A、过大

B、过小

C、过大或过小

D、突变

答案

参考答案:A

阅读理解

阅读理解。

     Today people can use the phone to talk with others almost anywhere on earth. But when you use the

phone,you don 't see the person you aretalking with. That may change in the near future.

     Today some people are using a kind of telephone called the picture phone or vision phone. With it, two people who are talking can see each other.Picture phones can be useful when you have something to show the person you're calling. They may have other uses in the future. One day you may be able to ring up a

library and ask to see a book. Then you'll be able to read the book right over your picture phone. Or you may be able to go shopping through your picture phone. If you see something in the newspaper that you

think you want to buy,you'll go to your phone and call the shop. People at the shop will show you the thing you are interested in right over the phone. You will be able to shop all over the town and never even leave your home.

1. Today people can use the phone to talk with others

A. in all the town

B. in some places in the world

C. only in big cities

D. almost anywhere on earth

2. The underlined word "it" in the text means

A. the picture phone

B. any phone

C. the use

D. the change

3.We can through the picture phone according to(依据)the text

A. Write a book

B. do the shopping

C. play games

D. have c1asses

4. Picture phones are very

A. useful

B. impossible

C. bad

D. badly

5. Which is NOT true according to the passage?

A. Today some people are using a kind of telephone called the picture phone or vision phone.

B. With the picture phone, two people can't see each other.

C. The phone is very useful.

D. Today people can use the phone to talk with others almost anywhere on earth.

阅读理解

阅读理解。

     1._____ One of the best things you can possibly do is to start your own club. It's great fun especially

if you are the sort of person who feels there's never anything to do during the school holidays.

    The first thing you need to come up with is an idea for your club. 2.____ Pets, clothes, pop music or

dancing groups, sports, making things? The list is endless.

    Next you need some friends to be in your club with you. 3._____ All you need is three or four other

people who are interested in the same thing as you.

    4._____ You should all sit down somewhere together with lots of pieces of paper and write down

every name you can think up. That'll keep you busy for ages.

    At your first meeting you should make up a rule book. And the first rule should be no grown-ups or

little/big brothers or sisters! The best clubs are always secret!

    Now you have just about everything you need, except membership cards. These are very important

and again you can speed a lot of time making them. 5._____ Why not leave some space for a photo of

yourself? That will make the membership card really look like it.

    So there you are, get clubbing! Once you get started you'll think of loads of more interesting things to

do!

A. That's easy.

B. Enjoy your own club!

C. Invite a designer to join you.

D. What are you interest in?

E. Some vacation is just around the corner.

F. Then you need to pick a name for your club.

G. Use a bright thick pen to make a special design.