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专项七 动词的时态和语态 [对点题组] 语法填空(用所给动词的适当时态、语态形式填空) 1．(2017·重庆，4)You'd better write down her phone number before you ________ (forget) it. 答案 forget [句意：趁你还没忘你最好把她的电话号码记下来。before引导时间状语从句，在条件或时间状语从句中要用一般现在时代替将来时。] 2．(2017·重庆，8)James has just arrived, but I didn't know he ________ (come) until yesterday. 答案 was coming [句意：詹姆斯刚刚到达，但我直到昨天才知道他要来。根据James has just arrived可知，昨天才知道他将要来，所以要用过去将来时，此处进行时表将来，相当于would come。] 3．(2017·福建，23)—Haven't seen you for ages! Where have you been? —I went to Ningxia and ________ (stay) there for one year, teaching as a volunteer. 答案 stayed [句意：“好久没见到你了！你去哪里了？”“我作为志愿者去了宁夏教学并且在那里待了一年。”去宁夏教学和待在那里是并列结构，并且动作都是发生在过去，故用一般过去时。] 4．(2017·湖南，28)Since the time humankind started gardening, we ________ (try) to make our environment more beautiful. | 
