问题 填空题 案例分析题

血糖浓度保持平衡对机体生命活动具有重要作用,下图为胰岛素作用机理模式图,请分析回答问题。

胰岛素降低血糖浓度的机理是胰岛素与()结合后,一方面促进()合成,另一方面使()增加,促进葡萄糖进入细胞。除此之外,胰岛素的作用还表现在能促进(),同时抑制非糖物质(脂肪、蛋白质)转化为葡萄糖。胰岛素作用于靶细胞的过程,体现了细胞膜具有()的功能。

答案

参考答案:胰岛素受体;蛋白质、脂肪、糖原;细胞膜上的葡萄糖转运蛋白(细胞膜载体蛋白);葡萄糖的利用;传递信息(进行细胞间的信息交流)

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.

单项选择题