问题 单项选择题

赛马场的跑马道600米长,现有甲、乙、丙三匹马,甲1分钟跑2圈,乙1分钟跑3圈,丙1分钟跑4圈。如果这三匹马并排在起跑线上,同时往一个方向跑,请问经过几分钟,这三匹马自出发后第一次并排在起跑线上( )。

A.1/2

B.1

C.6

D.12

答案

参考答案:B

解析:可知1分钟后甲跑完2圈结束,乙跑完3圈结束,丙跑完4圈结束,即1分钟后3匹马都处于起点的位置。此题中跑马道长600米的已知条件是迷惑条件,不要因此影响思考方向。所以正确答案为B。

阅读理解

Do you have a dictionary? I think almost everyone has one.But ,how often do you use a dictionary? I don't believe that everyone makes good use of it.You may come across lots of new words in your study and you will ask someone for the answers. But if you have a dictionary ,

please don't let it sleep.You should make better use of it .It can tell you not only the meaning of the words but also the use of them.What's more, it can tell you how to use them.

It is true that dictionaries are very useful and important to us.They are like silent teachers. When you have a question, you can turn to them.They will give you the right answer.They are also like a trusted friend and stay with you forever. You can learn a lot from them .

Don't be lazy. Don't let your dictionary sleep any more. You will find it is a new world if you walk to it.

小题1:Does everyone make good use of the dictionary?

A.No,they aren't.

B.No,they don't.

C.Yes,they do.

D.I don't know.小题2:What does a student often do if he comes across lots of new words in the study?

A.He will look them up in the dictionary.

B.He will ask his parents.

C.He will ask someone for the answers.

D.I don't know.小题3:What can a dictionary tell you?

A. The meaning of the words.               B. The use of the words.

C. How to use the words.                   D. A,B and C.

小题4:What are dictionaries like according to the passage?

A.They are like silent teachers and trusted friends.

B.They are of medium height.

C.They are very cute.

D.They are very beautiful.小题5:Which is TRUE according to the passage?

A.We should let the dictionary sleep.

B.Dictionaries are like our mothers.

C.Dictionaries are very useful to us.

D.We can see the film in the dictionary.

比较题