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A．单句填空 1．How would you like________if you were watching your favorite TV program and someone came into the room and just shut it off without asking you? 答案 it [句意：当你在看你最喜欢的电视节目时，如果有人进来，并且未经允许就把电视关掉，你会怎么想？it在此作形式宾语，指代后面if从句的内容。“动词＋it＋when/if＋从句”结构中，it作形式宾语，常见的动词有enjoy, hate, love, like, dislike, appreciate等。] 2．Raise your leg and let ________ stay in the air seconds. 答案 it [句意：抬起腿，让它在空中抬一会儿。let的宾语指的是前面的your leg，故用it。] 3．The first time you take part in a race, ________ is very normal to feel tense. 答案 it [句意：第一次参加比赛，你感觉紧张很正常。根据句意可知不定式to feel tense是真正主语，此处为形式主语，故用it。] 4．I would appreciate ________if you could teach me how to use the computer. 答案 it [句意：如果你能教我如何使用电脑，我将不胜感激。appreciate, like, hate等词后加it，再加从句。if引导的从句为真正的宾语，此处it为形式宾语。] 5．New technologies have made ________possible to turn out new products faster and at a lower cost. | 
