问题 选择题

某同学想测量物理课本中一张纸的厚度,下列方法可行的(  )

A.用毫米刻度尺直接测量

B.先测出一个较厚的物体的厚度,再把一张纸放在上面测量出总的厚度用总厚度减去物体的厚度

C.测出物理课本总的厚度,读出课本的页数,用厚度除以页数

D.测出物理课本总的厚度,数出课本的张数,用厚度除以张数

答案

A、一张纸的厚度远小于刻度尺的最小分度值1mm,故无法直接测量,故A不可行;

B、先测出一个较厚的物体的厚度,再把一张纸放在上面测量出总的厚度,此时测出的总厚度与物体的厚度因为相差很小,几乎无法比较,故B不可行;

C、课本的页数不是课本的张数,一张纸是两页,用厚度除以页数得不到一张纸的厚度,故C不可行;

D、测出物理课本总的厚度,数出课本的张数,用厚度除以张数,得到一张纸的厚度,此方法可行.

故选D

阅读理解

A young man applied for a job as a farmhand. When the farmer asked for his qualifications(资历), he said, “I can sleep when the wind blows.”

This puzzled the farmer. But he liked the young man, and hired him.

A few days later, the farmer and his wife were awakened in the night by a violent storm. They quickly began to check things out to see if all was safe from damage. They found that the doors of the farmhouse had been safely fastened, and a lot of wood had been set next to the fireplace.

The young man slept soundly.

The farmer and his wife then looked at their property (财产) carefully. They found that the farm tools had been placed in the storage room, safe from the bad weather. The tractor had been moved into the garage. The barn was properly locked. Even the animals were calm. All was well.

The farmer then understood the meaning of the young man’s words, “I can sleep when the wind blows.”

The farmhand did his work loyally. When the sky was clear, he had prepared for the storm in case it broke. So when the wind blew, there was no need for him to be afraid. He could sleep in peace.

小题1:The underlined word “fastened” in Para. 3 can be replaced by ______.

A.closed

B.damaged

C.taken

D.moved小题2:From the passage, we can learn that ______.

A.at first the farmer understood his words well

B.the young man was awakened in the night by a violent storm

C.the young man had prepared for the storm before it came

D.the young man was too sleepy to wake up in the night小题3:The best title for this passage is ______.

A.Sleeping in peace through the storm

B.A violent storm

C.A young man and his dream

D.A clever farmer小题4: Which of the following proverbs can best explain the story?

A.Lookers-on see more than players

B.Two heads are better than one

C.A stitch(针)in time saves nine

D.No man can do two things at a time

问答题 论述题