小学英语语法复习:强调句结构LXW育路网

　　常考的强调句结构是it 引导的句子。LXW育路网

　　It is (was) 被强调部分+ that (who) + 句子其他部分。LXW育路网

　　此结构强调的成分仅限于主语，宾语和状语。LXW育路网

　　It is from the sun that we get light and heat.LXW育路网

　　It was not until I had read your letter that I understood the true state of affairs.LXW育路网

　　典型例题LXW育路网

　　1) It was last night ___ I see the comet.LXW育路网

　　A.　the time　B.　when　 C.　that　　D.　whichLXW育路网

　　答案C. 强调句的结构是： It +be +强调部分 + that (who) + 主谓句。　强调句的连词只有两个，that和who。当强调的部分是人，且为句子的主语时，才用 "who"，其余用that。LXW育路网

　　原句：　My father did the experiment in the lab yesterday evening.LXW育路网

　　强调主语： It was my father who did the experiment in the lab yesterday evening.LXW育路网

　　强调宾语： It was the experiment that my father did in the lab yesterday evening.LXW育路网

　　强调时间： It was yesterday evening that my father did the experiment in the lab. (注意不用when)LXW育路网

　　强调地点： It was in the lab that my father did the experiment yesterday evening.LXW育路网

　　2)It is ten years ___ Miss Green returned to Canada.LXW育路网

　　A. that　B. when　 C. since　 D. asLXW育路网

　　答案C. 考点是连词用法。 本题易误选为A. that. 其实本句不是强调句。若是，去掉It　 be… that还应是一个完整的句子。而本句去掉 'It is…that'，只剩下ten years Miss Green returned to Canada. 不成句。因此本句不是强调句。LXW育路网

　　It is /was +时间+ since…　其中is<---> has been　 was <---> had been.LXW育路网

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