问题 选择题

下列说法中,不正确的是(     )

A.有最小正整数,没有最小的负整数

B.一个数是整数,则它一定是有理数

C.0既不是正有理数,也不是负有理数

D.正有理数和负有理数组成有理数

答案

答案:D

A.最小的正整数是1, 没有最小的负整数,正确;

B.一个数是整数,则它一定是有理数, 正确;

C.0既不是正有理数,也不是负有理数,正确;

D、正有理数和负有理数、0组成有理数,故错误

故选D

阅读理解

     One of the most popular items in the class newspaper is the advice column. No one knows who

writes it. The students think their teacher does, but it might be a student using a false name.

     The students enjoy thinking up problems for the advice column. Here are some of them and their

answers.

                                                                  ASK THE WISE OWL

Q: I'm always late for school. I try not to be, but I can't help it. Please advise me what to do. Tommy.

A: You are probably late for school because you don't really like school. My advice to you is to try

and enjoy school more, then you won't be late so often.

Q: I find it difficult to make friends. What do you think I should do? Sara.

A: I can't advise you until I know more about you. Your problem may be that you are shy. On the

other hand, it may be the opposite. You may be too bold. Write and tell me more about yourself.

Q: I'm always at the bottom of the class. What do you advise me to do? Molly.

A: I advise you to concentrate on improving your grades in one subject to start with. If you can do this,

you should move a little way up from the bottom(末位). Next try to improve your grades in another

subject, and so on. If you concentrate on(倾全力于) one subject at a time, by the end of the year you

should be quite a long way up from the bottom in all your classes. The Wise Owl.

1. __________writes the advice column.

A. The teacher

B. A student using a false name

C. No one knows

D. Molly

2. Tommy's problem is that __________.

A. he is always late for school

B. he finds it hard to make friends

C. he is always at the bottom of the class

D. he needs help with his homework

3. Wise Owl wants Sara to __________.

A. stop being so shy

B. stop being so bold

C. make more friends

D. give more information about herself

4. By the end of the year, Molly should be __________ in all her classes.

A. at the bottom

B. a little way up from the bottom

C. quite a long way up from the bottom

D. at the top

5. The main idea of the passage is __________.

A. the school newspaper has an advice column

B. Tommy wrote to the school newspaper to ask for advice

C. Sara finds it hard to make friends

D. the advice column in the school newspaper is very popular

选择题