选修6 it法(用).ppt

Good morning, everyone!;① It is never too old to learn. ② It is easier to fall than to rise. ③ It is no use crying over spilt (溢出的) milk. ④ It never rains but it pours(泼水). ;⑤ It is easy to open a shop but hard to keep it always open. ⑥ It takes three generations (代,辈) to make a gentleman. ;Grammar:Use of “It”;*;The use of “it”;Read and analyze the following sentences.;e.g: ______ a. Jim is at the door．____wants to see you． b. Someone is at the door．____must be Jim． A. That, It B. It, He C. He, It D. Who, He 一般说来，在指代身份或性别明确的人时，通常要根据情况用代词he／she；若是指代身份或性别不明的人，则用代词it;1. I can’t find my pen. I’m going to buy _____. 2. Life today is better than ______ in the old days. 3. I can’t find my pen. I must have lost _____. ;The Parkers bought a new house but ___ will need a lot of work before they can move in. A. they B. it C. one D. which 2. We’ve been looking at houses but haven’t found ___ we like yet. A. one B. ones C. it D. them 3. I’m moving to the countryside because the air there is much fresher than ___ in the city. A. ones B. one C. that D. those;It 作为形式主语 当不定式、动名词、从句等用作句子主语时，为保持句子平衡，通常把真正的主语放在句末，而在句首使用形式主语it. ;*;*;*;Read and analyze the following sentences.;跟踪训练1：It is+ adj. + that从句;It is said that… 据说…… It is reported that… It is supposed that… It is hoped that… It is well known that… ; 1.吸烟危害健康，这是事实。 2.碰巧我们在同一间大学 。 3.据说日本发生了地震。 4.有人建议他应该立刻戒烟。 ;it作形式宾语;1. I found it very interesting to study English. 我发现学英语非常有趣。 2. I think it no use arguing with him. 我认为和他争吵没有用。 3. He made it clear that he was not interested in this subject. 他非常清楚地表示他对那门学科不感兴趣。 ; 总结：当复合宾语中的宾语是不定式、动名词宾语从句时, 往往把真正的宾语放在它的补足语后面，而用it 作形式宾语, 放在宾语补足语之前。 该句型中的it 作形式宾语, 常用的动词有think, believe, make, find, consider, feel等。 ; 1. S+ think + it + necessary +( for sb. ) to do sth.