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1、公开课“it”用法总结(版)全国通用1. it 用作形式主语,指代从句2. 1）It is + adj. +that从句3. It is clear ( obvious， true， possible certain.) that . “清楚（显然，真的，肯定）”4. . It is important ( necessary， right， strange， natural.) that . 从句中要用虚拟语气（should + 动词原形）5. 2）.It is +v-ed +that 从句 It is said (reported， learned.) that . . It is sug
2、gested ( ordered /demanded/insisted/commanded. ) that .从句要用虚拟语气（should + 动词原形） 3）. It is a pity ( a shame . ) that . that后的从句一般用虚拟语气（should + 动词原形）4). It is time ( about time ，high time ) that . 该句型中that 后的从句应该用虚拟语气 It is the first ( second . ) time that 5). It happens (seems， looks， appears ) that.
3、公开课“it”用法总结(版)全国通用2.作形式主语替代不定式 1). It takes sb. . to do sth. “做要花费某人”2). It is kind ( of sb. ) to do sth.3). It is necessary ( for sb. ) to do sth. 常见的形容词有： important， necessary， natural easy ， safe ，common ，normal ，hard ， difficult ,dangerous 3.作形式主语替代ing形式 It is no good (use ) doing sth4. It 作形式宾语
4、. We think it important to learn a foreign language.公开课“it”用法总结(版)全国通用二、特殊句型1. It is + 被强调部分 + that .2. It is . since .3. It is . when . “当的时候，是”4. It is . before .5. It looks ( seems ) as if .6. It doesnt matter whether ( if ) .7. make it 及时赶到;成功;办成 8. catch it 被责骂; 受处罚9. It的一些习惯用法How is it with your study? 学习好吗？Thats it . 这就对了。It went hard with him. 他身遇不幸。It is all over with me. 我完蛋了。We must fight it out.我们必须坚持到底。I cant help it. 我没有办法。公开课“it”用法总结(版)全国通用公开课“it”用法总结(版)全国通用
