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Unit 4 Astronomy: the science of the stars Ⅰ.单词拼写 1．Strenuous exercise can often do more________(有害)than good. 2．Opportunities________(存在)in our company for experienced engineers. 3．What he said________(使困惑)me. 4．There was a shortage of________(氧气)at the top of the mountain. 5．The________(氛围)over dinner was warm and friendly. 6．Water was f________to the development of life. 7．This kind of plant m________very quickly in warm weather. 8．The social s________needs to be improved. 9．If you are right, my m________will be less than on the earth because the moon is smaller and I will be able to move more freely. 10．V________crime is only one of the maladies affecting modern society. 答案：1.harm 2.exist 3.puzzled 4.oxygen 5.atmosphere 6．fundamental 7.multiplies 8.system 9.mass 10.Violent Ⅱ.完成句子 1．既然已做完了作业，你可以去玩会足球休息一下。 ________ ________you've finished your homework, you can go and play football to have a rest. 2．没有什么可以阻止我爱她。 Nothing on earth can________me________loving her. 3．努力干好你的工作，你一定会成功的。 | 
