中小学教育资源及组卷应用平台 Unit 8 Section B 1a-1d分层作业 一、汉译英：单词/短语 1．追赶 2．跑步锻炼 3．一些奇怪的事情 4．穿着西装 5．赶公交车 6．拿着相机的女士 二、用适当的介词填空。 7．I saw a big bird flying the sky. 8．A strange thing happened him last week. 9．He might be running exercise. 10．The woman a camera could be the TV news. 11．W had a lot of delicious food the picnic. 三、单项选择 12．The boy with __ _ unusual face said that he had seen _ __ UFO in the sky. A．a; a B．an; a C．a; an D．an; an 13．They had to drive very quickly in order to __ __ the train. A．by B．taking C．catch D．on 14．Don’t always sit at the desk and do _____. You need more _____ if you want to keep healthy. A．exercise; exercises B．exercises; exercises C．exercises; exercise D．exercise; exercise 15．Several policemen _____ that thief and finally caught him. A．dealt with B．ran after C．worried about D．divided up 16．--____ should get the job, Peter or Sandy --I think Sandy should get the job. A．Do you think whose B．Whose do you think C．Who do you think D．Do you think who 17．-- Is that Mr. Green -- Impossible. He has gone to America. It --be him. A．could B．must C．can`t D．might 四、阅读单选 When you look up into the sky at night, have you ever felt that your eyes are deceiving you It seems that stars are moving all the time. Actually, there’s nothing wrong with your eyes. This twinkle (闪烁的) effect is called scintillation (闪烁现象). Scintillation happens because of air movement in the earth’s atmosphere (大气). Light is “bent (弯曲)” when it travels through different parts of the earth atmosphere. As the air in the earth’s atmosphere is moving all the time, the light traveling through the atmosphere makes the stars look as if they are moving, too. The same thing also happens to things on the ground. On a very hot and shiny day, if you look at the road, you will see that the image (影像) in the distance is not clear and things move slightly. You can also see the same effect if you drop a rock into water. The rock appears a little unclear under the moving water. This twinkling effect causes a lot of problems for astronomers (天文学家), because they cannot observe the stars clearly. So, a telescope was needed in space so that the air movements in the atmosphere could be avoided. It took a long time to build the space telescope but finally in 1990, a huge space telescope called the Hubble Space Telescope was successfully sent into space. Since then, astronomers have made many important observations that have helped people understand space better. 18．The underline word “deceiving” in Paragraph 1 means _____. A．欺骗 B．帮助 C．嘲笑 D．闪烁 19．What can we learn from the second paragraph A．How scintillation does harm to our eyes B．How scintillation happens in the atmosphere C．Why light can travel through the atmosphere D．Why the atmosphere air is moving all the time 20．When a rock is dropped into the moving water, it appears a little u ... ...
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