Why do you think people who live in some hot countries eat very spicy(辛辣的)food? Is it because the spices make the food taste better? Is it just because their parents and grandparents and great-grandparents liked hot food,or is there some connection between spices and healthy food? Researchers from Cornell University think that it is because spice plants have some important chemicals. These chemicals can kill bacteria(细菌)which spoil food.

“Most common spices can kill 75 to 100 percent of the bacteria in food,”explains one of the scientists.The bacteria grow more easily and spoil(变质)food more quickly at higher temperatures.For this reason,it is more difficult to keep food from spoiling in hot climates,

Do you like your food spicy? Your answer probably tells something about the country you come from.If you like spicy food,it is possible that hundreds of years ago,when there were no fridges,people in your country started using spices to keep the food from spoiling.The traditional spicy dishes helped those people to live longer,healthier lives.Today,in a time of fridges,the spices just make the food taste good.

1.

A. making food taste better

B. making food hotter

C. preventing bacteria getting into food

D. killing bacteria in food

2.

A. cold temperature makes bacteria

B. bacteria get used to hot food

C. high temperature helps bacteria grow faster

D. bacteria spoil food only at high temperature

3.

A. helping you to live longer

B. helping to keep you healthier

C. making your food taste better

D. taking the place of fridges

As darkness fell, hundreds of people in the Swiss village left their houses. They were staring(凝视)_____ at the mountain top in the distance. It was covered with _____ 一beautiful and dangerous.

The huge mountain is called Matterhorn Mountain climbers had _______ the top, using the southern route. But no one had ever dared(敢)to try a winter climbing up the ______ side. But now one man was daring to try the ______ route. He was Walter Bonatti, a great mountain climber from Italy.

For two days he had climbed. The village people had watched him anxiously(焦急地).Now they were waiting to see his signal(信号).If he planned to ______ the next day, he would light a green signal. A red light would mean that he was turning back.

A tiny green light ______ high on the mountain side. Bonatti was not giving up! The people _______.

The next day he continued his way upward. He was so lonely and so______! But he would not give up. Again that night he lit the ______ light.

In the morning, Bonatti ______. He couldn't see the top, but he knew he was _______ there. Though the climb was painful, he moved up.

Bonatti had spent months ______ for the climb. Was the training enough? Did he have the strength and skill to climb to the top?

He was finally at the top! News about his ______ was radioed to the world.

The trip down the southern route was easy. He was warmly welcomed in the village. He had done the “______” and would be well remembered as a climber of all time.

1.A. back B. forward C. down D. up

2.A. flowers B. rocks C. ice and snow D. green trees

3.A. watched B. passed C. reached D. climbed

4.A. western B. eastern C. southern D. northern

5.A. difficult B. strange C. same D. easy

6.A. turn back B. on C. rest D. stop

7.A. raised B. appeared C. turned on D. turned off

8.A. cheered B. laughed C. jumped D. shouted

9.A. sleepy B. excited C. tired D. happy

10.A. yellow B. blue C. green D. red

11.A. woke up B. turned up C. got up D. looked up

12.A. already B. almost C. hardly D. surely

13.A. training B. looking C. planning D. asking

14.A. victory B. thing C. climb D. courage

15.A. necessary B. important C. useless D. impossible

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