A new study says beef production damages the environment about ten times more than pork, lamb, or chicken production. Scientists said cows need 28 times more land and 11 times more water than pigs, sheep or chickens. They also produce a lot of greenhouse gas after they eat. Food like potatoes, wheat, and rice need 160 times less land and produce 11 times less greenhouse gases than beef. The scientists said the farming of animals and crops is a big cause of global warming. Farming causes 15% of all greenhouse gases. About half of this is from animals. 

    One scientist said we could reduce greenhouse gas by eating less beef. Professor Mark Sutton said cutting down on beef is better for the environment than using the car less. He also said eating less beef means we could give the wheat that cows eat to feed hungry people. This sounds simple, but many governments do not want to try it. Professor Sutton said governments should think about this carefully. He said consumers also needed to think more about what they eat. He said that eating less meat, especially less beef, is good for the environment. 

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1.The underlined word “lamb” means_____in Chinese.

A 牛肉

B 猪肉

C 羊肉

D 马肉

解析：选C。C 词义猜测题。根据第1段第1句中pork, lamb, or chicken与第二句中pigs, sheep or chickens相对应可知，故选C。

2.Which need(s) the most land?

A Cows.

B Wheat.

C Rice.

D Potatoes.

解析：选A。A 综合理解题。根据第1段第4句Food like potatoes, wheat, and rice need 160 times less land … than beef.可知，故选A。

3.Which is RIGHT according to the passage?

A Beef production causes 15% of all greenhouse gases.

B Potatoes don’t cause greenhouse gases.

C Beef produces 11 times more greenhouse gases than potatoes,wheat and rice.

D Consumers like beef the best of all meat.

解析：选C。C 内容理解题。根据第1段第4句Food like potatoes, wheat, and rice … produce 11 times less greenhouse gases than beef.可知，故选C。

4.We could reduce greenhouse gas by______.

A eating less beef

B planting more rice

C planting more wheat

D keeping more cows

解析：选A。A 细节理解题。根据第2段第1句One scientist said we could reduce greenhouse gas by eating less beef.可知，故选A。

5.When we eat less beef, so_____

A cows can eat more wheat.

B hungry people can have more wheat to eat.

C cows will cause more greenhouse gas.

D we can keep more cows.

解析：选B。B 判断推理题。根据第2段第3句He also said eating less beef means we could give the wheat that cows eat to feed hungry people.可知，故选B。