Watch and answer(II)
Reading comprehension:
1.The text mainly tells us th
《Unit 12 Mainly Revision(第3页)》出自：www.89xue.com网www.89xue.com at ____C____.
A .hibernation is more than sleep
B. warm-blooded animals will do things different from cold-blooded animals in winter
C. some animals live through the winter by hibernation or half-hibernation
D. animals use different ways to protect themselves against the cold.
2. Which sentence carries the main idea of the second paragraph?____A_____.
A. Sentence 1. B. Sentence 2.
C. Sentence 3. D. Sentence 4.
3.Why do frogs go to sleep under the mud in winter?___D___
A.Because they can escape from their enemies under the mud and the air there will keep the cold out.
B.Because the air under the mud will keep the cold out and it is comfortable there.
C.Because they feel comfortable there and they can get food easily.
D.Because they have enough to eat there .
4. We human beings are able to keep the cold out because ___A_____
A.we are warm-blooded.
B.we are clever enough to build houses and to wear clothes.
C.we are cold-blooded, and we do not need to hibernate.
D.for human beings, hibernation will use more energy.
Listen and fill in blanks
They go to sleep in all kinds of places. Red squirrels disappear _____trees, bears use caves, frogs go_____under the mud, and many other animals____ holes in the earth .A____ many animals sleep under the snow. There is a lot of air in_____ snow, and this helps to keep the cold____.
Hibernation is more than sleep. It is a very _______sleep.the animal’s temperature ______to just_____ zero centigrade, and its heart______ very slowly.People who find hibernating animals______ often think that they are dead; the body _______very cold, and the animal may _______only once every five minutes. A hibernating animal cannot feel any_____. You can touch it , or even _____its tail, without________ it to move or wake up.
Hibernating in that way, the animal can sleep all through the winter. You might________ how it________ to live without eating for so many months . The answer____ in two facts. The first is that it has _____supplies of____ in its body during the summer and autumn. The second is connected with the main use the body makes of food---- to _______the energy for movement. We have seen that the hibernating animal reduces movement to ____below the _______level. Even the movements of the heart and lungs are _______reduced.The animal _______makes any movement,hardly uses any________, and hardly needs any food.
Step4. Recite the sentences and do the exercises as well.
1.A:What about places to stay?
B:I suggest you take a tent. I can lend you one and a few pieces of equipment. It’s much cheaper to camp than to stay in a hotel.
We made the suggestion that he _B___ his work.
A. continues B. continue
C. continued D. had continued
2.A:That sounds like a good idea. I have a few friends I could ring to see if they’re free.
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