问题 选择题

李明同学的妈妈发现李明自从上了初中以后,学习比原来更刻苦了,但也发现李明看书时眼睛与书的距离比正常情况越来越近了,请你在下列判断及矫正措施中,选出正确的一项向李明同学说明    (    )

A.李明同学已患上近视眼,需要佩戴用凸透镜制成的眼镜

B.李明同学已患上远视眼,需要佩戴用凸透镜制成的眼镜

C.李明同学巳患上近视眼,需要佩戴用凹透镜制成的眼镜

D.李明同学已患上远视眼,需要佩戴用凹透镜制成的眼镜

答案

答案:C

题目分析:近视眼能看清近处,远视眼能看清远处,李明看书时眼睛与书的距离比正常情况越来越近了,说明能看清近处的物体,不能看清远处的物体,属于近视眼,近视眼用凹透镜来矫正,使像后移到视网膜上。所以答案是C

点评:本题有一定难度,学生只要知道近视眼能看清近处,远视眼能看清远处,还有凹透镜配近视,凸透镜配远视,答案迎刃而解

单项选择题
阅读理解

A mouse looked through a hole in the wall to see the farmer and his wife opening a package;what food might it contain? He was astonished to discover that it was a mouse trap!

Running to the farmyard,the mouse shouted,warning everyone,“There is a mouse trap in the house,there is a mouse trap in the house.”The chicken,with her head high,glared at the mouse and said,“Shut up.Little Ugly.This is a great concern to you,but it has nothing to do with me:I can’t be troubled by it.”

The mouse turned to the pig and told him.“There is a mouse trap in the house.”“I am so sorry,Mr Mouse,”said the pig sympathetically,“but there is nothing I can do about it but pray;you are always in my prayers.”

The mouse turned to the cow,who said,“A mouse trap,am I in great danger,huh?”

Now the mouse had to face the farmer’s mouse trap alone.

That very night a sound was heard through the house,like that of a mouse trap catching its prey.The farmer’wife rushed to see what was caught.In the darkness,she did not see it was a big poisonous snake whose tail the trap had caught.The snake bit the farmer’s wife.The farmer rushed her to the hospital.She rerturned home with a fever.It is said that drinking fresh chicken soup will help treat fever,so the farmer took his sharp knife to the farmyard for the soup’s main ingredient.His wife’s sickness continued,so friends and neighbors came to sit with her around the clock.To feed them,the farmer killed the pig.The farmer’s wife did not get well,in fact,she died,and so many people came for her funeral.The farmer had the cow killed to provide for all of them to eat.

So next time when someone is facing a problem,don’t say that it has nothing to do with you.

57.We could see from the passage that the mouse was          

A.good at cheating others                         B.dishonest

C.kind and warm-hearted                               D.foolish

58.Which of the following is NOT TRUE according to the passage?

A.The others help the farmer kill the cow.   

B.The mouse trap was very practical.

C.The pig is more friendly than the other animals.

D.The farmer’s family had no friends at all.

59.The passage is most probably a          

A.fable(寓言)                                        B.science fiction

C.fairy tale(神话)                                       D.humorous story

60.What can we learn from the story?

A.Traps can always cause chain reactions.

B.It is better to be safe than to be sorry.

C.Sometimes when the least of us is threatened,we all might be at risk.

D.To keep the balance of nature is the duty of us al.