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必修③ Unit 4 Ⅰ.单词拼写 1．It is a ________ (谜) for her why they declined her. 答案：puzzle 2．A plastic bag was seen ________ (漂浮) in the water. 答案：floating 3．Smoking is ________ (有害的) to your health. 答案：harmful 4．She was told not to __________ (传播) the secret around. 答案：spread 5．He was ________ (失望的) that other guests were not coming. 答案：disappointed 6．The crowd ________ (欢呼) when he appeared. 答案：cheered7．There is a friendly ________ (气氛) of helping each other with difficulties in study in our class. 答案：atmosphere 8．When we reached the top of the mountain，we felt ________ (精疲力尽)． 答案：exhausted 9．As we know，water ________ (存在) in three forms. 答案：exists 10．Most people oppose ________ (暴力) and war.They prefer peace. 答案：violence Ⅱ.完成句子 1．If you work hard，you will succeed ________ ________. 只要你努力学习，你总有一天会成功的。 答案：in time | 
