题目内容

One third of the country_____ covered with trees and the majority of the citizens______ black people.

A．is; are

B．is; is

C．are; are

D．are; is

【答案】

【解析】考查主谓一致。分数和百分数做主语，谓语动词与其后面的名词保持一致，名词是不可数名词谓语动词用单数，后面的名词是可数名词复数，谓语动词用复数。The country指国家面积，是不可数名词，故第一空用单数；the citizens是复数形式，故第二空用复数形式。故A正确。

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ple — their clothes, ideas, or languages—has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree(可可树)by South American. Indians. The Spanish introduced it to the rest of the world during the 1500’s. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today.
The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Eu??rope, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish peo??ple starved when the crop failed during the "Potato Famine (饥荒)" of 1845—1846, and thousands more were forced to leave their homeland and move to America.
There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world’s largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400’s.
according to an. Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee, bush. He tried one and experienced the " wide-awake" feeling that one third of the world’s population now starts the day with.

according to the passage, which of the following has changed the most in the last 500 years?