问题 单项选择题

在桂林漓江一些有地下河流的岩洞中,有许多露出河流水面的石笋。这些石笋是由水滴长年滴落在岩石表面而逐渐积累的矿物质形成的。 如果上述断定为真,最能支持以下哪项结论( )

A.过去漓江的江面比现在高

B.只有漓江的岩洞中才有地下河流

C.上述岩洞内的地下河流是在石笋形成前出现的

D.上述岩洞内地下河流的水比过去深

答案

参考答案:D

解析: 如果D选项为真,对题干的结论提供最有力的支持。上述岩洞内地下河流的水比过去深。如果以前地下河流的水就比较深的话,那么水滴滴在岩石上就不会被积累,而是与其他水混合在一起了。答案为D。

阅读理解

Jack was ten years old and he was a very lazy boy. He didn’t like doing any work. He had to go to school, of course, but he didn’t study hard there and tried to do little work. His father and mother were both doctors and they hoped that their son would become one too when he grew up. But one day Jack said to his mother, “When I finish school, I want to be a dustman(垃圾工).”

“A dustman?” his mother asked. She was very surprised. “That’s not a good job. Why do you want to become a dustman?”

“Because I would only have to work one day a week,” Jack answered at once.

“Only one day a week?” his mother said. “What do you mean? And how do you know?”

“Well,” Jack answered, “I know that the dustman came to work on Thursday every week, because I only see them on that day.”

小题1:How was Jack doing at school?

A.He liked his school.

B.He worked hard at school.

C.He didn’t study hard at school.

D.He tried to do much work at school.小题2:Jack’s parents wanted their son to be a                .

A.doctor

B.dustman

C.teacher

D.worker小题3:Jack hoped to be a dustman because he thought                    .

A.that job was very important

B.the dustman worked only on Thursday

C.he could make more money

D.that was a dirty job小题4:Jack’s mother felt surprised at his hope of being a dustman, because          .

A.their son was too young to be a dustman

B.a dustman worked only one day a week

C.it was hard to get such a job

D.that was not a good job小题5:What do you think of Jack?

A.He was not very clever.

B.He was very lazy.

C.He liked the dustman’s work.

D.He didn’t want to be a doctor.

多项选择题