Question

 Snakes,hummingbirds (蜂鳥)and squirrels hibernate in winter because of a long,cold season of little food. Unlike the warm seasons of spring and summer that provide lots of food for these animals,the winter season only provides a cold,icy ground where there is little food.

What's more,the winter days are short while the hours in the dark night seem too long. Searching for food often leaves the stomachs of these animals empty because by the end of their search their bodies end up burning more calories (卡路里)than the animals which get back from the food when and if any is found. So instead of starving (挨餓)or freezing (受凍)to death,these animals decide to hibernate during the winter months.

Hibernation helps these animals survive in the hard time. By hibernating,an animal saves its calories. Hibernation is a way of lowering an animal's body temperature and slowing down its heartbeat in order to save energy (能量)during times of less food and cold weather.

Every animal hibernates in different ways. While squirrels can wake up every four days to eat and take a trip to the bathroom,black bears can stay inactive杯活躍的),for up to seven months with no food,water,or visits to the bathroom.

(   ) 26. The underlined word "hibernate" means "       " in Chinese.

A.遷徙   B.冬眠  C.捕獵   D.繁殖

(   ) 27. How many animals are mentioned (提及)in this passage?

A. 3. B. 4. C. 5. D. 6.

(   ) 28. Why do some of the animals hibernate?

A.   Because they are tired.

B.   Because they want to stay inactive.

C.   Because they don't want to go to the bathroom.

D.   Because it can save energy.

(   ) 29. Which sentence is NOT true according to this passage?

A.   More food can be provided in warm seasons.

B.   Many animals hibernate in the same way.

C.   Some animals stay inactive instead of searching for food during winters.

D.   Hibernation helps animals survive the winter by burning less calories. (   ) 30. Which is this passage mainly about?

A. A long,cold season for animals. B. Bears' sleeping.

C. The reasons of hibernation. D. Different ways of hibernation.

Answer 1

 26-30 BBDBC