it的用法选修六课件.ppt

1、1.It is never too old to learn.2.It rains cats and dogs.3.It never rains but it pours.4.It is a poor mouse that has only one hole.The subject position1.It is amazing that at my age I am still fit.2.It is easier to fall than to rise.3.It is no good crying over spilt milk.“It”can be used in the subjec

2、t position to stand for _,_ or _.a clausean infinitive-ing formThe object position4.I think it best that you should do more exercise.5.He found it difficult to accustom himself to getting up early.a clausean infinitive1.It is amazing that at my age I am still fit.2.It is easier to fall than to rise.

3、3.It is no good crying over spilt milk.4.I think it best that you should do more exercise.5.He found it difficult to accustom himself to getting up early.“It”can be used in the subject or object position to stand for _,_ or _.a clausean infinitive-ing form1.Its difficult to give up smoking.2.Is it c

4、ertain that they will win?3.It is good learning without practice.4.It is fun for him to study.5.Its a pity that our teacher cant take part in our party.6.It is suggested that we(should)arrive there in 2 hours.formal subject1.It+is+adj./n./p.p.+infinite/clause/-ing formreal subject clear,easy,true,di

5、fficult,certain,etc.fun,a pity,a shame,no use/good,etc.said,believed,decided,hoped,etc.1.Its difficult to give up smoking.2.It is fun for him to study.3.It is suggested that we(should)arrive there in 2 hours.遵循英语语言遵循英语语言的尾重原则的尾重原则,避免句子头重避免句子头重脚轻。脚轻。formal object2.+verb+it+adj./n.+infinite/clause/-in

6、g formreal object find,think,feel,believe,consider,make,etc.2.Some young people think they look attractive when they smoke.It seems _ _1.Giving up smoking is difficult to do.It is _ that some young people think they look attractive when they smoke.difficult to give up smoking.3.Most people believe s

7、moking causes cancer.It is believed _4.Dont try to quit on a stressful day.It is no use _trying to quit on a stressful day.that smoking causes cancer.5.China produces one third of the worlds cigarettes.It is astonishing _ _6.You are not allowed to advertise cigarettes in this country.It is illegal _

8、 _ that China produces one-third of the worlds cigarettes.to advertise cigarettes in this country.8.It was a dark and stormy night when the old man started his journey.In this sentence,“it”is used to talk about time.In this sentence,what does“it”refer to?“It”can be used to talk about _,_,_,etc.1.It

9、is a beautiful day.2.It never rains but it pours.3.It was time to quite smoking.4.It is 10 kilometers to the castle.5.It takes all sorts.weathertimedistance Impersonal“it”can also be used totalk about _,_,_,_,etc.circumstance1.It is Friday today.2.It lies in the south of Shaoguan city.3.It is 40!You got a high fever!4.Its quiet here.dateplacetemperature1.It was very cold yesterday.2.It is about 8:30 now.3.It is about 5km from my home to the park.4.Its quite noisy here.5.I hope that it will be fine tomorrow.circumstanceweathertimedistanceweather