The novel coronavirus pneumonia (NCP) has already made a number of people sick. Where did the virus come from? Scientists say it probably came from bats.

Bats can carry and transmit (传播) more than 60 viruses that can infect(传染) humans, Live Science noted. They include the world's deadliest viruses, such as Ebola and HIV. Because of their strong immune systems (免疫系统), bats are able to host these viruses and not get sick. At the same time, the viruses keep developing inside the bats to create new variants (变体). These variants can then infect new hosts, such as other wild animals.

Pangolins (穿山甲), for example, might be an intermediate host (中间宿主) for NCP, according to a recent study by Chinese scientists. This means that bats might have given the virus to pangolins, with pangolins then spreading it to humans.

Wild animals like snakes, hedgehogs (刺猬) and bamboo rats also carry different virus. But since they live in the wild, there should be little chance for humans to come into contact with them and get infected - unless the animals are eaten or used to make animal products. When people hunt, buy and eat wild animals, they can introduce viruses to the rest of the population.

But this doesn't mean that we should kill wild animals. Each species has a role in the ecosystem (生态系统) and all of them are important in keeping a natural ecological balance. The lesson we can learn from disease outbreaks is to protect animals and to live in harmony with them instead of hunting, killing, or eating them.

1.Why can bats host many viruses without getting sick?

A.Because these viruses are not deadly. B.Because they have strong immune systems.

C.Because the viruses are kept in balance. D.Because they can spread the viruses to other animals.

2.According to a recent study, humans might get infected with COVID-19 from _________.

A.pangolins B.snakes C.hedgehogs D.bamboo rats

3.What does the underlined word "harmony" in the last paragraph probably mean?

A.隔离 B.伤害 C.和谐 D.集中

4.According to the story, what lesson should humans learn?

A.Research more about wild animals. B.Exercise regularly to stay healthy.

C.Stop keeping animals as pets. D.Don't buy or eat wild animals.

Almost every Chinese person can recite(背诵) the two lines of the famous poem, “Every grain on the plate comes from hard work ”. But sadly, many of us don’t actually get the real meaning of these lines: Don’t waste food.

A CCTV program reported that the food Chinese people throw away every year is enough to feed 200 million people for a year. Do we have too much food? Absolutely not. According to the UN World Food Program, there were 925 million hungry people around the world in 2011, especially in developing countries. Six million children die of hunger every year.

Chinese people are well-known for being friendly and generous. Many even feel that they lose face if their guests have eaten all the food on the table. Luckily, a number of people have realized the importance of saving food. What should we do in our daily lives to waste less food?

1.Don’t order too much in a restaurant. Only order as much as you want to eat. If you cannot eat all the food you ordered, take the rest of it home.

2.Don’t leave any food in your bowls while having meals.

3.Keep an eye on what food you have at home. Don’t buy too much, especially for vegetables and fruit.

1.What’s the real meaning of the underlined sentence?

A. 春种一粒粟,秋收万颗籽。 B. 谁知盘中餐,粒粒皆辛苦。

C. 吏禄三百石,岁晏有余粮。 D. 足蒸暑土气,背灼炎天光。

2.According to the UN report, how many hungry people were there in 2011?

A. 6 million. B. 925 million. C. 200 million. D. 725 million.

3.What should we do to waste less food?

A. Order more food in a restaurant.

B. Every time you eat, leave some food in your bowls.

C. Take all the food you ordered home.

D. Don’t store too much food like vegetables and fruit.

4.Which of the following is NOT true?

A. A number of people have realized the importance of saving food.

B. The food Chinese people throw away every year is enough to feed 200 million people for a year.

C. 200 million children die of hunger every year.

D. Many Chinese feel that they lose face if guests have eaten all the food on the table.

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