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题型:阅读判断 题类:常考题 难易度:普通

根据短文内容,判断下列句子正(T)误(F)。
    Which is the biggest country in the world? Well, look at the map and you'll know it is Russia. It is followed by Canada, China, the U.S.A. and Brazil. Among them, China has the largest number of people, with a population(人口) of about 1.3 billion(十亿). Canada has the longest coastline(海岸线). The total length(长度) of the coastline is about 202,080 kilometers. It is long enough to go around the earth six times.
Do you know which is the largest island(岛) in the world? Is that Hawaii? No, it is much smaller than the largest island in the world—Greenland. Greenland is to the northeast(东北) of Canada. Ice covers 81% of its land. It is very cold there, so there are only about 56,000 people living on the island.

(1)、Russia is the largest country in the world.

(2)、The country with the largest population is China.

(3)、The total length of Canada's coastline is about 202,080 kilometers.  

(4)、 The largest island in the world is Hawaii.

(5)、 The population of Greenland is about 56,000.

举一反三
 阅读下列短文,从每题所给的A、B、C和D四个选项中选出最佳选项。

If you've ever seen elephant seals(象海豹) lying on a beach, you might think all they do is sleep. But now scientists have discovered that when elephant seals are in the ocean, they hardly sleep at all. They just sleep for about two hours a day.

Even though elephant seals are large animals, they have to be careful in the ocean. Near the surface(水面), predators like sharks and orca s are a danger. So elephant seals spend most of their time diving(潜水) deep underwater, looking for food. Usually, they will dive for about 30 minutes, then come up for air for just a couple of minutes before diving again.

Scientists have wondered how elephant seals can sleep while they're at sea, since they are almost diving all the time. Animals like dolphins and sea lions have a special way. One half of their brain can sleep, while the other stays awake. But elephant seals are like humans- both halves of the brain need to go to sleep at the same time. So how do they sleep?

To find out, a scientist named Jessica Kendall- Bar did a research. She created a special cap that could record the elephant seals' brain activity. The cap also collected information on the elephant seals' heart rates, how their bodies were moving, and how deep they were. Dr. Kendall- Bar and her team put the caps on thirteen young female elephant seals.

The scientists learned that elephant seals steep in short times while they are diving. They only sleep for about 10 minutes at a time. They wake up in time to go up for more air. The scientists found that elephant seals only sleep for about two hours a day when they're in the ocean. That means that the rest they get once they return to land is very important, which helps them have energy again. Back on land they sleep for about 10.8 hours a day

The researchers hope that their work will help to protect the places where elephant seals sleep when they're on land.

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