1、Grammar:Use of “It”人稱代詞：指動物或不明性別的人或嬰兒人稱代詞：指動物或不明性別的人或嬰兒 指示代詞指示代詞:可指剛提到過的事物。可指剛提到過的事物。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 可以用來指代可以用來指代_,_,_,_,_,_等。等。dateweathertimedistanceplacetemperature 日期日期天氣天氣時間時間距離距離地點地點溫度溫度 It is never too old to learn. It is no use crying over spilt milk. Proverbs(諺語諺語) with “It”活到老活到老, , 學到老。學到老。覆水難收覆水難收It is easy to open a shop but hard to keep it always open.創業容易守業難。創業容易守業難

3、。二：二：itit的形式作用的形式作用 形式主語形式主語形式賓語形式賓語1. It is necessary for you _ (把信給他把信給他).用用for的的adj.通常為描述通常為描述事件事件的形容詞：的形容詞：easy，difficult，hard，necessary，impossible，2. Its kind _ you to help me with the problem.用用of 的的adj. 通常為描述通常為描述人人的形容詞：的形容詞：rude，cruel（殘忍的），（殘忍的），foolish，stupid，crazy.（1）It +be +adj.+（for/of s

4、b.）to do sth.to give him a letter of 1.it作形式主語替代不定式（短語）作形式主語替代不定式（短語） 每天早上堅持鍛煉對你好。每天早上堅持鍛煉對你好。 It is good for you to keep doing morning exercise every day. 你現在放棄這個工作是愚蠢的。你現在放棄這個工作是愚蠢的。Its foolish of you to quit your job now.Ex. It is no use _. (這么早去那里這么早去那里)在被窩里看書是不好的。在被窩里看書是不好的。 It is no good readi

5、ng in the bed.It is +no use/no good+ doing sth. 做某事是沒用的，沒有好處的做某事是沒用的，沒有好處的going there so early2.it 作形式主語替代作形式主語替代V-ing形式形式1. 很明顯很明顯水是罪魁禍首。水是罪魁禍首。 It is obvious that the water was to blame.2. 吸煙危害健康，吸煙危害健康，這是事實這是事實。 It is a fact that smoking is harmful to health.3. 據說據說日本發生了地震。日本發生了地震。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從句從句adj.It is+ _+ that從句從句n.It is+ _+ that從句從句V-edIt + _+ that從句從句vi.3.it 作形式主語代替主語從句obvious ， possible，necessarya pity , a shame, no wonder, a fact said, reported , supposed , hoped , knownseem

7、, appear, turn out, happen It is said that 據說據說 It is reported that It is supposed that It is hoped that It is well known that 據報導據報導據推測據推測希望希望眾所周知眾所周知普遍認為普遍認為有人建議有人建議It is suggested thatIt is generally considered that 1.很明顯他已經知道了那個壞消息。很明顯他已經知道了那個壞消息。 It is obvious that he has known the bad news. 2.

8、難怪她如此心煩意亂。難怪她如此心煩意亂。 Its no wonder that she was so upset. 3.3.有人建議他應該立刻戒煙。有人建議他應該立刻戒煙。 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、 主語+ V. (think, believe, make, find, consider, feel.) +it +n/adj.+to do / doing /that-clause it 作作形式賓語形式賓語 他發現早起是很困難的。他發現早起是很困難的。 He found it difficult to get up early. 她認為在課堂上講話是不好的。她認為在課堂上講話是不好的。 She thinks it no good talking in class. 他非常清楚地表示他對那門學科不感興趣。他非常清楚地表示他對那門學科不感興趣。 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