Takealookatthelabel（标签）onalmostanybottleofmilkandyoumayseethewordPASTEURIZED.Whatdoesthatmean?Let’sfindoutbymeetingLouisPasteur.LouisPasteurwasbornin1822inalittletown

Question

    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 it turns sour （酸的） ” 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 sour wine had some unusual germs. If he killed these germs maybe he could keep the wine from turning sour. He experimented （试验） 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 sour so quickly. When breweries （啤酒师） heated beer it tasted better. People called the process （过程） “pasteurization” － heating a liquid to kill bad germs. Aren’t you glad that the milk you drink has been pasteurized?

  1. 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.

  2. The underlined （划线） words in the passage mean _______.

    A. small parts water is made up of

    B. dirty things around us

    C. bodies of small living things

    D. living things that can’t be seen

  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 sentences is true?

    A. Where something is wrong there are germs.

    B. Louis Pasteur is the inventor of microscopes.

    C. Everybody knows what the word PASTEURIZED means.

    D. Pasteurization is a good way to keep food from going bad.

 

Answer 1

答案：C;D;A;D
提示：
1．  选项C是对文章内容的总结； 2．  考察学生词汇； 3．  选A，从文中可以推断出； 4．  答案在最后一段可以找到。