选修六theuseofit

1、Grammar:Use of “It”人称代词：指动物或不明性别的人或婴儿人称代词：指动物或不明性别的人或婴儿 指示代词指示代词:可指刚提到过的事物。可指刚提到过的事物。一：一：it的指代作用的指代作用 It is Friday today. It is a beautiful day here. It is my birthday in two weeks time. It is about 25km from Longxian to Bazi. It lies in the south of Shaoguan city. It is 40C ! You got a high fever!

2、3. Conclusion :it 可以用来指代可以用来指代_,_,_,_,_,_等。等。dateweathertimedistanceplacetemperature 日期日期天气天气时间时间距离距离地点地点温度温度 It is never too old to learn. It is no use crying over spilt milk. Proverbs(谚语谚语) with “It”活到老活到老, , 学到老。学到老。覆水难收覆水难收It is easy to open a shop but hard to keep it always open.创业容易守业难。创业容易守业难

3、。二：二：itit的形式作用的形式作用 形式主语形式主语形式宾语形式宾语1. It is necessary for you _ (把信给他把信给他).用用for的的adj.通常为描述通常为描述事件事件的形容词：的形容词：easy，difficult，hard，necessary，impossible，2. Its kind _ you to help me with the problem.用用of 的的adj. 通常为描述通常为描述人人的形容词：的形容词：rude，cruel（残忍的），（残忍的），foolish，stupid，crazy.（1）It +be +adj.+（for/of s

4、b.）to do sth.to give him a letter of 1.it作形式主语替代不定式（短语）作形式主语替代不定式（短语） 每天早上坚持锻炼对你好。每天早上坚持锻炼对你好。 It is good for you to keep doing morning exercise every day. 你现在放弃这个工作是愚蠢的。你现在放弃这个工作是愚蠢的。Its foolish of you to quit your job now.Ex. It is no use _. (这么早去那里这么早去那里)在被窝里看书是不好的。在被窝里看书是不好的。 It is no good readi

5、ng in the bed.It is +no use/no good+ doing sth. 做某事是没用的，没有好处的做某事是没用的，没有好处的going there so early2.it 作形式主语替代作形式主语替代V-ing形式形式1. 很明显很明显水是罪魁祸首。水是罪魁祸首。 It is obvious that the water was to blame.2. 吸烟危害健康，吸烟危害健康，这是事实这是事实。 It is a fact that smoking is harmful to health.3. 据说据说日本发生了地震。日本发生了地震。It is said that

6、 there is an earthquake in Japan.4. 碰巧碰巧那天我出去了。那天我出去了。It happened that I went out that day. It is+ _+ that从句从句adj.It is+ _+ that从句从句n.It is+ _+ that从句从句V-edIt + _+ that从句从句vi.3.it 作形式主语代替主语从句obvious ， possible，necessarya pity , a shame, no wonder, a fact said, reported , supposed , hoped , knownseem

7、, appear, turn out, happen It is said that 据说据说 It is reported that It is supposed that It is hoped that It is well known that 据报导据报导据推测据推测希望希望众所周知众所周知普遍认为普遍认为有人建议有人建议It is suggested thatIt is generally considered that 1.很明显他已经知道了那个坏消息。很明显他已经知道了那个坏消息。 It is obvious that he has known the bad news. 2.

8、难怪她如此心烦意乱。难怪她如此心烦意乱。 Its no wonder that she was so upset. 3.3.有人建议他应该立刻戒烟。有人建议他应该立刻戒烟。 It is suggested that he should quit smoking at once. We think it our duty to clean our classroom every day. I think it no use arguing with him.They found it difficult that they would finish their work in two days.

9、 主语+ V. (think, believe, make, find, consider, feel.) +it +n/adj.+to do / doing /that-clause it 作作形式宾语形式宾语 他发现早起是很困难的。他发现早起是很困难的。 He found it difficult to get up early. 她认为在课堂上讲话是不好的。她认为在课堂上讲话是不好的。 She thinks it no good talking in class. 他非常清楚地表示他对那门学科不感兴趣。他非常清楚地表示他对那门学科不感兴趣。 He made it clear that he was not interested in that subject. _ was a sunny day. Peter decided to go for a walk to the park, though _ was two miles away. _ was so comfortable to walk on the street. itItIt Suddenly _began to rain. He found _ hard to w