选修6 Unit3A healthylife Grammar It的用法

课件38张PPT。人教课标
高二 选修 6
Unit 31. It is never too old to learn. 活到老, 学到老。 2. It rains cats and dogs. 大雨滂沱3. It never rains but it pours. 不鸣则已, 一鸣惊人。4. It is a poor mouse that has only one hole. 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. 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.4. I think it best that
you should do
more exercise.5. He found it difficult
to accustom himself
to getting up early.The subject position 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
subject 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 infinitive 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.
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 form It’s difficult to give up smoking.
Is it certain that they will win?
It is good learning without practice.
It is fun for him to study.
It’s a pity that our teacher can’t take
part in our party.6. It is suggested that we (should) arrive
there in 2 hours. formal subject It + is + adj./ n./ p.p. + infinite/ clause/
-ing formreal subject clear, easy, true, difficult, certain, etc.fun, a pity, a shame, no use / good, etc.said, believed, decided, hoped, etc. It’s difficult to give up smoking.
It is fun for him to study.3. It is suggested that we (should) arrive
there in 2 hours. 遵循英语语言的尾重原则, 避免句子头重脚轻。formal object2. … + verb + it + adj./ n. + infinite/
clause/ -ing formreal object find, think, feel, believe, consider, make, etc.2. Some young people think they look
attractive when they smoke.
It seems _________________________
_________________________________ 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 smoking causes cancer.
It is believed _________________________
4. Don’t 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 world’s
cigarettes.
It is astonishing _____________________
_______________________________
6. You are not allowed to advertise
cigarettes in this country.
It is illegal __________________________
________ that China produces one-third of the world’s cigarettes. to advertise cigarettes in this country.7. My father has quit smoking at last.
It is wonderful _____________________
____________________
8. The night was dark and stormy when
the old man started his journey.
It was a __________________________
_____________________________ dark and stormy night when
the old man started his journey. that my father has quit smoking at last.9. You could suffer from bad health if you
keep smoking.
It is likely __________________________
________________________
10. You have to take pills to control your
blood pressure.
It is necessary _____________________
_________________________ for you to take pills to control your blood pressure. that you could suffer from bad health if you keep smoking.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.“It” can be used in another way?In this sentence, what does “it” refer to? It 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.
世上的人形形色
色，无奇不有。 “It” can be used to talk about ________, _____, ________, etc. It 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 to
talk 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. It’s 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. It’s quite noisy here.
5. I hope that it will be fine tomorrow.circumstanceweathertimedistanceweather One of you is an eyewitness (E) who has seen a robbery or an accident. The other is the policeman/policewoman (P) who wants as much information as possible. Use “it” in the answers.EXAMPLE:P: What was the weather like on the day of
the accident?
E: It was beginning to rain hard and the
ground was slippery.
P: How far could you see?
E: It was impossible to see more than twenty
yards ahead of you, so all the cars were
travelling very slowly.
P: What about Mr. Li’s car? Was it
travelling slowly too? …Practise your dialogue and then swap roles.