试题与答案

六大类营养物质中除了脂肪、维生素、无机盐和水外,还有两类物质是 A.蛋白质和氧气

题型:选择题

题目:

六大类营养物质中除了脂肪、维生素、无机盐和水外,还有两类物质是

A.蛋白质和氧气

B.蛋白质和糖类

C.糖类和空气

D.空气和食物纤维

答案:

答案:B

:食物中含有六大类营养物质,每一类营养物质都是人体所必需的,思考解答.

解答:解:食物中含有六大类营养物质:蛋白质、糖类、脂肪、维生素、水和无机盐,蛋白质是构成人体细胞的基本物质;糖类是人体最重要的供能物质,脂肪是人体内备用的能源物质,维生素既不是构成组织的主要原料,也不是供应能量的物质,但它对人体的各项生命活动有重要的作用;无机盐是构成人体组织的重要原料.水是细胞的主要组成成分,营养物质和废物也必须溶解在水中才能被运输.

故答案为:B

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题型:阅读理解

A mouse looked through a crack 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!

Retreating to the farmyard, the mouse declared the warning, “There is a mouse trap in the house, there is a mouse trap in the house.”

The chicken clucked and scratched, raised her head and said, “Mr Mouse, I can tell you this is a grave concern to you, but it is of no consequence to me, I cannot be bothered 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,” sympathized the pig, “but there is nothing I can do about it but pray; be assured that you are in my prayers.”

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

So the mouse returned to the house, head down and depressed to face the farmer’s mouse trap alone.

That very night a sound was heard throughout the house, like the sound of a mouse trap catching its prey. The farmer’s wife rushed to see what was caught. In the darkness, she did not see that it was an evil snake whose tail the trap had caught. The snake bit the farmer’s wife. The farmer rushed her to the hospital. She returned home with a fever. Now everyone knew to treat a fever with fresh chicken soup, so the farmer took his hatchet to the farmyard for the soup’s main ingredient. His wife’s sickness continued so that friends and neighbors came to sit with her around the clock. To feed them, the farmer butchered 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 slaughtered to provide meat for all of them to eat.

So the next time you hear that someone is facing a problem and think that it does not concern you, remember that when the least of us is threatened, we are all at risk.

小题1:We may infer that the passage is most probably a ______.

A.fairy tale (神话)

B.Fable (寓言)

C.science fiction

D.news report小题2:We could see from the passage that the mouse was ______.

A.kind and warm-hearted

B.well-informed

C.good at cheating others

D.foolish and rude小题3: The underlined word “ingredient” (Paragraph 7) refers to ______.

A.the mouse

B.the pig

C.the snake

D.the chicken小题4:What can we learn from the story?

A.Better safe than sorry.

B.Traps are usually well disguised.

C.To help others is just to save you.

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

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