it用法课件.ppt

选修 6;The use of “It”;一．It 用作人称代词 指前面已提到过的人/动物/物品/事,在句中做主语或宾语. He has a baby ; he love it very much . My uncle has a dog ; he has had it for five months. Well, you mustn’t play on the road.It’s dangerous！;1.(2011福建)We have various summer camps for your holidays. You can choose_________________ based on your own interests. either B. each C. one D. it 2. (2007辽宁)The information on the Internet gets around much more rapidly than ______________in the newspaper. A. it B. those C. one D. that 3.（2009四川）I like this house with a beautiful garden in front, but I don’t have enough money to buy_________. A. one B. it C. this D. that 4.12浙江Studying Wendy’s menu, I found that many of the items are similar to ________ of McDonald’ s. A. those B. ones C. any D. all;指代上文提过的事物时： it指的是同名同物，相当于the+名词 one泛指，同名异物，表示单数可数名词，相当于a+名词，复数形式用ones that后面常有后置定语，有特指意义，代替不可数名词或单数可数名词，相当于the+名词，复数名词用those，相当于the ones.;二．It 用作非人称代词: It 用作非人称代词,常作主语,表示时间/日期/距离/天气/温度/环境等. It’s a long time since we meet last time. It’s raining when I left the office. It’s 12 degrees centigrade. ; 三． “It” 作形式主语和形式宾语;2) It + be + adj. / n. + 从句. 1 e.g. It is certain that Tom will do well in the exam. ;4)It+takes + sb.+ some time + to do sth. 9 It+costs + sb.+ some money +to do sth 10;6) It + vt. + (sb.) + that-clause. It worried her a bit that her hair was 　　　turning grey. It + vi. + that-clause. It happened that I went out shopping. It seems that he is learning Russian. 翻译：他来不来都没关系。;Notes: it做形式主语所构成的某些惯用句形是高考的常考点. It looks as if…, It does not matter…; It seems that/as if…; It appears that…, It happened that….; It makes no difference… 翻译：你去不去对我都一样没区别.;It seems that Peter is not coming. That Peter is not coming seems. Peter doesn’t seem to be coming. It happened that I was the only witness. I happened to be the only witness. sb seem/happen to be/have done; ;5.It is a pity/a shame / an honour / a good thing