1、Unit 2We have not found life on any other planets yet.第二课时.选词填空1.They havent arrived in Shanghai (already/yet). 2.We havent found life on any (else/other) planets. 3. (Neither/None) of my parents is a teacher. 4.Which planet has (a/an) environment like that of the earth? 5.The population of China is
2、 larger than (this/that) of Japan. 6.He is (enough old/old enough) to go to school. 7.They have sent an email (for/to) me. 8.Our home is 1,000 metres (far/away) from school. 9.Do you still remember the girl (called/calling) Alice?10.Do you know who (discovered/looked) America? .用方框中所给词语的适当形式填空。每词限用一
3、次none of, far away, millions of,communicate with, on the earth11.You should your parents more often.12.There has been an old story here for years.13.We should live with the animals in peace together.14.There are many coats in the shop, but them is my favourite.15.The stars are so that we cant see th
4、em with our eyes.句型转换16.She has already read the storybook.(改为一般疑问句) she the storybook ?17.He went to the moon with another astronaut. (改为现在完成时)He to the moon with another astronaut.18.Amy has already seen the film The Gathering.(改为否定句)Amy seen the film The Gathering .19.To understand the problem is
5、 very difficult.(改为同义句) very difficult understand the problem.20.Lisa has sent me a message. (改为同义句)Lisa has sent a message .阅读理解The European Southern Observatory (ESO) reported that on May 6 scientists found a new black hole, and it is the closest to the Earth now. It is about 1,000 light years awa
6、y. Its so close that the two stars nearest to it can be seen without a telescope(望远镜).A thousand light years may not seem close. A light year is about 5.9 trillion(万亿) miles. But in terms of(就来说) our galaxy, this object is in the neighborhood. The second closest black hole is about 3,200 light years
7、 from the Earth.Black holes are usually the result of stars that have burned out. Black holes are so huge that they have a strong gravitational pull(万有引力). Nothing can run away from this pull, not even light. Thats why we cant see them. Scientists can only find black holes because of the objects aro
8、und them.The ESO scientists noticed the stars around the black hole. They were studying a two-star system called HR 6819. They watched it for months, mapping the stars orbits(轨道). The way the stars moved told them something else was there.A scientist called Rivinius says the two stars are about 140
9、million years old. The black hole itself probably began forming 15 million years ago. There could be more black holes near the Earth. Other scientists agree with him. There may be 100 million to 1 billion of these objects in our galaxy. Avi Loeb is the director of Harvard Universitys Black Hole Init
10、iative. “Maybe there are black holes much closer than this one,” he says.“If you find an ant while scanning a small fraction(小部分) of your kitchen, you know there must be many more out there.”()21.We can see without a telescope. A.the closest black holeB.the two stars nearest to the black holeC.the l
11、ight in the black holeD.all of the things in the black hole()22.The second closest black hole is about away from the Earth.A.5.9 light yearsB.140 light yearsC.1,000 light yearsD.3,200 light years()23.About black holes, which one is TRUE?A.We can see black holes with a telescope.B.Scientists found bl
12、ack holes by studying the objects around them.C.Light can run away from black holes.D.Black holes form because the objects in space have burned out.()24.The black hole began forming the two stars near it.A.125 million years earlier thanB.155 million years earlier thanC.125 million years later thanD.
13、155 million years later than()25.What does Avi Loeb mean by saying the underlined sentence? A.It is possible that there are black holes much closer than this one.B.Maybe there are 100 million to 1 billion black holes in our galaxy.C.There are millions of stars near the Earth.D.The black hole began f
14、orming earlier than the stars near them.任务型阅读Do you know Stephen Hawking? He is a scientist from England. He knows a lot about the universe. He can hardly move or speak because of his illness. He can only talk with the help of a computer.Hawking once made a programme with the Discovery Channel. He t
15、alked about life in the universe. It took him three years to make the programme. He believed that there is other life in the universe. However, he said that we shouldnt try to contact(联系) any aliens(外星人) out there. In fact, we should try not to contact aliens, because their arrival on the earth woul
16、d almost certainly mean the end of humans. Hawking said, “If aliens ever visited us, I think the outcome(结果) would be the same as when Christopher Columbus first landed in America, which didnt turn out very well for the native Americans.”阅读上面短文,根据短文内容完成下面的内容摘要。每空不超过三个单词。Stephen Hawking is an 26. sci
17、entist. He can hardly move or speak because of 27. He spent 28. finishing making the programme with the Discovery Channel. In the programme he talked about life 29. He also thinks it may bring something bad to humans if 30. arrive on the earth.语法填空阅读下面短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。A young couple d
18、ecided to go camping in the mountains to celebrate their first year of marriage. They took with them all the things they would need to go campingwarm clothes, food and a tent.They 31.(go) up to the mountains and found the perfect place to put up their tent. After that, they decided 32.(go) for a hik
19、e(远足) to see more of the mountains.33. a long hike, they went back to their camp, built a fire and cooked dinner. Finally, it 34.(be) time to go to sleep.Sometime in 35. middle of the night, the wife woke her husband up and said, “Look up at the sky. What do you see?”Her husband answered, “I see 36.
20、(million) of stars.”His wife said, “Thats right.37. does that mean to you?”The husband said, “Well, if there are so many stars out there, that means there might also 38. a planet just like the planet we live on. And if thats true, then there could be life on one of the 39.(planet). Thats kind of exc
21、iting!”His wife said, “You are wrong. It means that someone 40.(take) away our tent already!” 答案.1.yet2.other3.Neither4.an5.that6.old enough7.to8.away9.called10.discoveredmunicate with12.millions of13.on the earth14.none of15.far away.16.Has; read; yet17.has gone18.hasnt; yet19.It is; to20.to me.【主旨
22、大意】 这是一篇说明文,介绍了科学家发现了一个新的黑洞,它离地球只有1000光年,有很强的万有引力,大约形成于1500万年前,是目前为止离地球最近的黑洞。21.B细节理解题。由第一段最后一句“Its so close that the two stars nearest to it can be seen without a telescope.”可知选B。22.D细节理解题。由第二段最后一句“The second closest black hole is about 3,200 light years from the Earth.”可知,第二个最近的黑洞离地球大约3200光年。23.B推
23、理判断题。由第三段最后一句“Scientists can only find black holes because of the objects around them.”可知,科学家通过研究黑洞旁边的物体来发现黑洞。24.C数字计算题。由最后一段第一、二句“the two stars are about 140 million years old. The black hole itself probably began forming 15 million years ago.”可知,黑洞比它附近的两颗星星晚形成(140-15=)125百万年。25.A推理判断题。根据文章最后一段中“Ma
24、ybe there are black holes much closer than this one,he says.If you find an ant while scanning a small fraction of your kitchen, you know there must be many more out there.”可知,Avi Loeb 认为,可能有比这个黑洞更靠近地球的黑洞,最后他举例说“如果你扫描厨房的一小片区域,发现了一只蚂蚁,那么在厨房里可能有更多的蚂蚁”,这个例子是为了佐证上面的观点。.26.English27.his illness28.three years29.in the universe30.aliens.31.went32.to go33.After34.was35.the36.millions37.What38.be39.planets40.has taken