内容正文:
Unit 2 We have not found life on any other planets yet.
第一课时
一、词汇运用。
A)根据句意,用方框中所给短语的适当形式填空,每个短语仅能用一次。
take photos, millions of, far away, think about, in space
1.We have __thought_about__ moving to a bigger house for a long time.
2.They have planted __millions_of__ trees in the past ten years.
3.—Did you __take_photos__ when you travelled in Shanghai?
—No, I didn't. I forgot to take my camera.
4. The six astronauts on board will spend six months __in_space__.
5.The museum was not too __far_away__.You don't need to take a bus.
B)根据句意和汉语提示填写单词,每空一词。
6.Do you know how large the __universe__(宇宙) is?
7.__Light__(光) travels much faster than sound.
8.In fact, most of us know little about the solar__system__(系统).
9.__None__(没有一人) of us has tried this kind of food.
10.More and more people use WeChat to __communicate__(交流) with each other.
11.The government tells us that we should keep the __environment__(环境) clean.
12.A __group__(组) of scientists will have a meeting to talk about the problem.
13.It could save countless lives and __billions__(十亿) of dollars.
14.Always remember that nothing is __impossible__(不可能的) if you put your heart into it.
15.There are billions of __stars__(恒星) in the Galaxy, and our sun is only one of them.
二、根据句意,用括号中所给词的适当形式填空。
1.There __has_been__(be) more attention to the environment by now.
2.I am lucky enough __to_learn__(learn) so much about the universe.
3.Look! A group of __women__(woman) are dancing in the park.
4.I don't know how__to_make__(make) a model spaceship.
5.The lovely girl is __called__(call) Milly.
6.None of other planets __has__(have) an environment like that of the earth.
7.Scientists have discovered many __galaxies__(galaxy) in the universe.
8.So far people __have_sent__(send) several spaceships to the planet Mars.
9.People use more than words when __communicating__(communicate) with each other.
10.Mars is much__farther/further__(far) to the earth than the moon.
三、根据汉语提示完成句子,每空一词。
1.地球上的生命已经存在了数亿年。
There has been life on earth for __hundreds__ __of__ __millions__ __of__ years.
2.土星是太阳系中的第二大行星。
Saturn is the second biggest planet in the __solar__ __system__.
3.我们当中没有一个人相信他所说的话。
__None__ __of__ __us__ believed what he said.
4.任何人都不可能进去,因为门是锁的。
__It's__ __impossible__ for anyone __to__ get in because the door is locked.
5.老师告诉我们月亮围绕地球转。
The teacher told us that the moon __travels/goes__ __around__ the earth.
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