Why do you think people 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 any connection(联系) between spices and healthy food?

Scientists think that it is because spice plants have some important chemicals(化学物质).These chemicals can kill bacteria(细菌).

“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(使…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 are 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 better.

1.The chemicals in spices keep food fresh by_________.

A. making food taste better

B. making food hotter

C. preventing bacteria getting into food

D. killing bacteria in food

2.Food goes bad more quickly in hot climates because_______.

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.According to the passage,spices are useful in an the following things except_______.

A.helping you to live longer

B. helping to keep you healthier

C.making your food taste better

D. being used as fridges

To us, it seems so natural to put up an umbrella to keep the water off when it rains. But in fact the umbrella was not invented as protection against the rain. Its first use was as a shade (遮蔽) against the sun.

Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, back in the eleventh century BC.

We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use : it became a symbol of honor and power(权力). In the Far East in ancient times, the umbrella was allowed to be used only by those in high office or by royal people such as the kings or queens.

In Europe, the Greeks were the first to use the umbrella as a sunshade. The umbrella was in common use in ancient Greece, but it is believed that the first people in Europe to use the umbrella as protection against the rain were the ancient Romans. During the middle ages in Europe, the use of the umbrella almost disappeared. Then it appeared again in Italy in the late sixteenth century. And again it became a symbol of power.

Umbrellas have not changed much in style during all this time, though they have become much lighter in weight. It wasn't until the twentieth century that the umbrellas for women began to be made in all kinds of colors.

1. Ancient people first used umbrellas as _________.

A. a symbol of honor B. protection against the sun

C. a symbol of power D. protection against the rain

2. According to the passage, the umbrella was probably first used in ancient ______.

A. Egypt . B. Babylon C. Rome D. China

3. The underlined word royal might mean _ in Chinese.

A.皇室的 B.富裕的 C.中产的 D.平民的

4. According to the passage, which of the following is NOT true?

A. The ancient Greeks used the umbrella in their daily life.

B. Europeans hardly used the umbrella during the middle ages.

C. The umbrellas for women were made colorful in ancient times.

D. The style of the umbrella hasn't changed a lot since it was invented

5. This passage is mainly about ___________.

A. the sales of the umbrella

B. the differences among umbrellas

C. the invention of the umbrella

D. the history and the use of the umbrella

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