2021年成考高起点《英语》必做精选套题（三）及答案9

单选题

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2021年成考高起点《英语》必做精选套题（三）及答案9

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Passage 4

Imagine going to sleep in October and waking up in May!Well,marmots and ground squirrels

stay warm by sleeping all winter.All this time,they do not wake up once.This special kind of sleep is called hibernation.During this sleep,the heart slows down,and the animal breathes more slowly,it doesn't move around,so it uses less energy.

Animals like the marmot and the ground squirrel inhabit the coldest parts of the world.They need special talents to survive in these frigid places.Their furry coats keep them snug when the temperature falls below zero.It often gets this cold in the Arctic,a land that is just below the North Pole.

Before the long winter,some animals eat and eat.After a while,they grow very fat.When the

winter comes,they live on the fat saved up in their bodies.Layers of fat keep an animal warm.

Arctic animals also have other ways to beat the cold.Rabbits in the Arctic,for example,have

very small ears.Small ears keep heat in,while big ears let it out.Small things usually keep heat in.

Have you ever slept in a room that is very small,and noticed how hot it can get?

It rarely gets warm in the Arctic.But although summer seasons there are very short,the sun

shines brightly.Plants seem to spring up before your eyes!Animals such as caribou look forward all year to summer,when they can eat fresh grass again.Every minute of sunshine is important to their lives.

48、A good title for this passage would be()[单选题]*

A.the Arctic Summer

B.Marmots and Squirrels

C.Keeping Warm in the Arctic(正确答案)

D.Freezing Temperatures

答案解析：全篇文章中心讲的是北极圈的动物是如何保持温暖的。选项C是正确的。

49、The way for marmot to keep warm is.()[单选题]*

A.to be very fat

B.to have small ears

C.to eat green grass

D.to have thick and soft hairs(正确答案)

答案解析：第二段。土拨鼠有非常厚的毛皮以御寒。选项D是正确的。选项A在第三段,有些动物是靠多吃增加脂肪以御寒。选项B在倒数第二段,小耳朵比大耳朵少释放热量。选项C在最后一段,讲的不是冬天如何御寒的问题。