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1、It的用法,It 用法归纳 一， 指代it 二， 形式it 三， 强调it 四， 含有it的句型,一，指代it 用来指代上文提到的事物。 1.-Pass me your nose. - Here it is . 2.Whatever you do and say, ask yourself whether it is welcomed by others. 3.The Olympic Game will be held in Beijing in 2008. It makes the Chinese proud.,2. 表示时间，天气， 距离，温度等。,Its 10:08,1.It was c
2、old yesterday. 2.It may be 25 kms from here to the town. 3.It was very quiet in the caf.,3. 、作为人称代词，it可以用来指东西、动物、婴儿和未确定身份的人。 1.Wheres my left eye? Have you seen it? 2.The cat is in the garden, isnt it? 3.The baby cried because it is hungry. 4. (有人在敲门）Who is it?,Its lovely,It weighs only 3 kilos.,Its
3、 a large sum of money.,4.表示谁在做某事的句子： 1.- Who is it? -Its me. 2.Her face lighted when she saw who it was. 5.用来泛泛的指某件事： 1.It doesnt matter. 2.It is a shame, isnt it? 3.So you are going to be married this time？When is it？,特别注意： it, one和that作替代词的用法及区别 1. it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。 The news that
4、 they failed their driving test upset him, _? A. did they B. didnt they C. did it D. didnt it,2. one代替前面提到的同类事物中的一个。该事物只能是可数名词,前面可以有冠词,也可以被this、that或形容词修饰,其后也可以有定语。 -Why dont we have a little break? -Didnt we just have_? A. it B. that C. one D. this,3. that代替前面提到的同类事物中特指的一个。该事物既可以是可数名词也可以是不可数名词,要有后置
5、定语,但不可以有前置修饰语。 Few pleasures can equal to _ of a cool dirnk on a hot day. A. some B. any C. that D. those,二，形式it- 形式主语， 形式宾语,1. It is necessary to be prepared for a job interview. Having the answers ready will be of great help. 2. It is known to everybody that the moon travels round the earth once e
6、very month.,形式主语,It is clear ( obvious， true， possible， certain) that . 1.It is very clear that hes round and tall like a tree.,形式主语,2. It is important ( necessary， strange， natural.) that . that 后的从句中要用虚拟语气（should + 动词原形。 It is important that we (should) have enough rice. It is necessary that he (s
7、hould) remember these words.,形式主语,3. Its surprising that (should)竟然 例 Its surpring that you should apologize to her without any reason.,形式主语,4. It is a pity ( a shame . ) that . that后的从句一般用虚拟语气（should + 动词原形），常译为“竟然”。没有这种意义时，则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. It
8、 is a pity that he is ill today.,5. It is our hope ( a duty/ an honour . ) that . 例 The Foreign Minister said, “It is our hope that the two sides will work towards peace.” 译。 1.很荣幸能请你来为我的小狗洗脚。 It s an honour that I can invite you to come to wash the legs for my dog. 2.照顾老人是我们的职责。 Its our duty that w
9、e take care of the old.,6. It is said (reported， learned， thought, believed, known hoped, expected, agreed, accepted, decided, planed, understood, ） that . 常译为“据说（据报道，据悉）”。 It is reported that another earth satellite has been put into orbit. 译。大家都知道那只猫和那条狗明天要结婚。,7. It is suggested ( ordered /demande
10、d/insisted/commanded. ) that . that 后的从句要用虚拟语气（should + 动词原形），should 可以省；常译为“据建议；有命令） It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours.,8. It happens (seems， appears,come about, turn out , )等不及物动词+that. 碰巧./看来/似乎. It happened （chance
11、d）that he met his teacher in the street. 译，看来他是吃错了药。 It seems that he took the wrong midicine. 译， 结果是他吃到了五花肉（panceta)。 It turned out that he had panceta finally.,9. It is adj ( for sb. ) to do sth. important， necessary， natural ， impossible ， unusual ， rare ， normal ， easy ， hard ， difficult ， dange
12、rous ， pleasant ， likely, right, wrong, , clear, obvious, certain, suitable, proper, useful, 等。,10. It is adj ( of sb. ) to do sth. good （好心的）， nice（有教养的）， polite， kind ， brave ， careless， honest ，modest ， considerate, naughty ， wise ， clever ， thoughtful, careful, crazy， bad ， lazy ， rude ， cruel ，
13、 foolish ， silly ， stupid ，. 等。 这个句型可以改写为：sb. is adj to do sth. 。 It is kind of you to say so. = You are kind to say so.,11.It替代作主语的动名词 Its no good/use doing Its (well)worth doing 例 Its no use crying over spilt milk.,12. It takes sb. . to do sth. “做要花费某人”。 It took thousands of people many years to b
14、uild the Great Wall. 13. It doesnt matter whether ( if ) . “不论（是否）没关系。 It doesnt matter if they are old.,形式宾语,1.动词+ it + 形容词/名词+（ for sb +）to do + that 从句,think, believe, suppose, consider, feel, make, Keep ,hard useless worth worthwhile ,no use/no good/ worth ones while/ a waste of time/ money/ener
15、gy/ words,2.动词+ it + 形容词 + that从（should）,important/ unimportant/ necessary/ unnecessary /natural/ essential,形式宾语,The chairman thought _ necessary to invite Mr. Obama to visit Peking. A. that B. it C. this D. him 例 . 我认为你去参加这会议很重要。 I think it important that you (should) attend the conference.,形式宾语,3. 动词+ it+ as+ noun/adj. + 从句,accept, regard, take, see, view 例 The speaker takes it as encouraging when many students attend his lecture.,4. 动词 +it + to sb. + that owe it to sb. that把归功于 leave it to sb that把留给某人去做 take it for granted that 把想当然 keep it in mind that 把记在心里 例 1.Dont b
