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Take a look at the label(标签) on almost any bottle of milk and you may see the word PASTEURIZED. What does that mean? Let’s find out by meeting Louis Pasteur.

Louis Pasteur was born in 1822 in a little town in France. As he grew up, he loved to paint. He loved to look at the world around him. When he went to college in Paris, he showed interest in looking through a microscope. A microscope makes things look a lot bigger; it lets you see things you can’t see just with your eyes. Looking through a microscope, Pasteur found a living world in a drop of water. He saw and drew pictures of the small living things -- he called them “microbes” or “germs”-- that crowded in a drop of water.

One day a winemaker came into the lab, hoping that someone could help him with his problem. “Sometimes my wine tastes delicious, but sometimes terrible,” he said to Pasteur. “Can you help me find out why?”

Pasteur put some drops of the wine under the microscope. He noticed that the terrible wine had some unusual germs. If he killed these germs, maybe he could keep the wine from turning terrible. He tried with different ways to kill the germs. In the end he found heating (加热) the wine seemed to work best. The winemaker tried it, and every bottle of wine tasted good.

Pasteur’s idea worked for other people, too. When farmers heated milk, it didn’t turn bad so quickly. When breweries heated beer, it tasted better. People called it “pasteurization” ---heating a liquid to kill bad germs. Aren’t you glad that the milk you drink has been pasteurized?

1. The Chinese meaning for the word “microbes” is____.

A.病毒

B.真菌

C.支原体

D.微生物

2. Which is the right order in Pasteur’s life story?

(1). He received college education in Paris.

(2) He helped to find some unusual germs in some drops of wine.

(3) A new way of killing bad germs--pasteurization was found out.

(4)He was born in 1822 in a little town in France.

(5) Microbes were found by Louis Pasteur with the help of a microscope.

A.2; 1; 3; 5; 4

B.4; 1; 5; 2; 3

C.4; 1; 3; 5; 2

D.3; 1; 2; 5; 4

3. What do you think Louis Pasteur was like from the passage?

A.Clever, helpful and hard-working.

B.Quiet, helpful and kind-hearted.

C.Brave, careful and hard-working.

D.Clever, serious and kind-hearted.

4.Which of the following is TRUE according to the passage?

A.Germs only live in something that is bad.

B.Louis found the way to kill the unusual germs in the wine by chance (偶然).

C.Everybody knows what the word PASTEURIZED means.

D.Pasteurization is used to kill bad germs in the milk we drink.

5. What does the passage mainly tell us?

A.What life Louis Pasteur lived.

B.How to make milk clean.

C.How pasteurization was invented.

D.What to do with wine.

 

【答案】

1.D

2.B

3.A

4.D

5.C

【解析】

1.词义理解题,根据文中语句“He saw and drew pictures of the small living things -- he called them “microbes” or “germs”-- that crowded in a drop of water.”理解可知。它指的是微生物

2.细节理解题,根据文中语句理解可知。

3.理解归纳题,根据文中语句理解可知。Pasteur是个聪明,刻苦工作的人。

4.理解判断题,根据文中语句“People called it “pasteurization” ---heating a liquid to kill bad germs.”理解可知。D是错误的

5.理解归纳题,根据文中语句理解可知。本文主要告诉我们pasteurization的来历。

 

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