摘要: Let’s find out. Find out what kinds of activities someone wants to do on certain days. Step4. Homework !. Copy the new words 4 times.

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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.

 

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Autumn is the harvest season. There must be a lot for us to eat !Yes, autumn is a great time for fruit and vegetables. Let’s find out about some of the best.

Apples: You can eat apples all the year round, but they are better and cheaper in autumn. People say “An apple a day keeps the doctor away”. Apples have a lot of vitamin C and fiber(纤维) in them. They are good for the heart and can make your mouth fresh.

Pears: Pears are in season from autumn to mid winter. They have minerals(矿物质)and vitamins C and E in them. They are good for the heart and can keep cancer (癌症) away.

Pumpkins: Pumpkin is a nice vegetable in autumn. They are rich in beta carotene (贝塔胡萝卜素), which is turned into vitamin A in our bodies. Pumpkins also have calcium(钙),iron and vitamin C in them. Eating pumpkins can make us look young.

Sweet corn (甜玉米): Sweet corn is in season near the end of the year. It has minerals in it. It’s good for the heart.

Autumn weather is cold and dry. Try to eat as much fruit and vegetables as you can. They will make you healthy.

1. The passage mainly tells us_________.

A. autumn is a great time for fruit and vegetables

B. why people need to eat an apple each day.

C. eating pumpkins can make us look young

D. to eat as much fruit and vegetables as we can

2.The saying “An apple a day keeps the doctor away” means_______.

A. 医生一日吃一个苹果

B. 医生规定人们一日吃一个苹果

C. 一日吃一个苹果就不必去找医生

D. 医生不让人们一日吃一个苹果

3. _____ are /is in rich beta carotene.

A. Pumpkins    B. Sweet corn    C. Apples     D. Pears

 

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