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Ⅰ.单词拼写 1．What do you think of the new ________ (制度)? 2．“What happened？” John's mother asked him in a ________ (温和的) voice. 3．Before the Earth's protective ________ (大气层) was formed, there was no life except in the sea. 4．With the ________ (引力) of the moon and the sun each day, tides (潮汐) roll in and roll away. 5．He managed to finish the race, ________ (不像) more than half of the competitors. 6．His face wore a ________ (困惑的，迷惑的) expression. 7．Eating too many desserts can be ________ (有害的) to one's teeth. 8．The plane ________ (坠毁，碰撞) into the mountain. 9．According to the ________ (理论) of relativity (相对论), nothing can travel faster than light. 10．Most of the evidence had been destroyed. ________ (因此，于是), it was almost impossible to prove him guilty. 答案：1.system 2.gentle 3.atmosphere 4.pull 5.unlike 6.puzzled 7.harmful 8.crashed 9.theory 10.Thus Ⅱ.完成句子 1．既然已做完了作业，你可以去玩会儿足球休息一下。 ________ ________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。 | 
