1、Grammar 重庆大学版重庆大学版高一高一(3)(3)Unit 6Unit 61.指代事物、动物、婴儿或未知的人。Look at the baby.Isnt it lovely?看那个小婴儿，它不可爱吗？Who is there?谁在那里？Its only me.我。it的用法2.指天气、时间、距离、自然现象、环境等。Its very cold today.今天很冷。Its twenty miles to the zoo.到公园20英里路。3.代替不定式、ving形式、名词性从句，作形式主语或形式宾语。Its of great help to master a foreign languag
2、e.掌握一门外语很有帮助。I find it quite necessary to make some changes.我发现有必要做出改变。Its no good(no use,useless,senseless，dangerous,enjoyable,worthwhile)v.ing.Its no use arguing with him.同他争论没什么用。It is well known that China has the largest population in the world.众所周知，中国在世界上人口最多。4.用作look,seem,appear,happen等词的主语。I
3、t seems that he lost his way.他好像迷路了。It happened that she was not at home when I called.我打电话时，碰巧她不在家。5.表示“喜欢、恨”等心理方面的动词后面接 it，构成固定结构，这类动词有enjoy,prefer,love,like,hate,dislike,appreciate等。I will appreciate it if you can give me a hand.如果你能帮我一把，我会很感激。I cant help it if he is always late.如果他总是迟到，我也没办法。As
4、someone puts it，practice makes perfect.像某人所说的那样，熟能生巧。6.在动词+介词构成的词组如see to,depend on等结构中不能直接接宾语从句，在介词和宾语从句间也须插入无意义代词it.(Depend on it 可单独成句)See to it that you are not late again.设法做到你不再迟到。You may depend on it that all the goods will be delivered in time.务必相信所有的货物会及时送达。7.在下列固定短语和惯用法中it指代某种情形或事实。It is h
5、ard work,but its worth it in the end.虽然工作很辛苦，但还是值得(做)的。Sometimes were busy and sometimes were not.It all depends.有时我们很忙，有时则不是。那要看什么情形了。Look at that fat girl.She should carry too big case.I love it.看那个胖女孩。她竟然扛两只大箱子！真逗/真有趣。8.It用于强调句型，对句子的某一成分加以强调，结构如下：It is/was+被强调的部分+that/who/whom+原句中的其他部分It is my wo
6、rd that counts.我说了算。(强调主语)It is me that/whom you should ask.你应该问的人是我。（强调宾语）It is at eleven that the train leaves.正是在十一点钟火车开走了。（强调状语）It was red that we painted the gate.我们给门漆上的颜色正是红色。（强调宾语补足语）A_ disappeared as time went on that he was afraid of climbing high mountains.A.It B.ThatC.What D.Which高考链接解析：
7、句意：随着时间的推移，他对爬山的恐惧感消失了。首先忽略as time went on这一时间状语，这样很容易发现that从句为真正主语，而四个选项中只有it可作形式主语。B2.I like this house with a beautiful garden in front,but I dont have enough money to buy _.A.one B.it C.this D.that【解析】选B。句意为：我喜欢这套带漂亮前院的房子，但是我没有足够的钱去买它。在代词中，one用于泛指某类中的一个；it用于特指，指前面提及的单数个体；this用于指已经提到或已知的人、物、主意等；t
8、hat用于名词或代词前，“那个”，指人或事物，尤指在空间或时间上较远的物等。3.I would appreciate _,to be frank,if goods could be delivered as soon as possible.A.you B.this C.it D.myselfC【解析】选C。考查代词。此处it作形式宾语，代替后面的“if goods could be delivered as soon as possible”.to be frank为插入语。4.There is still a copy of the book in the library.Will you
9、 go and borrow _?No.Id rather buy _ in the bookstore.A.it;one B.one;one C.one;it D.it;itA选A。考查代词。第一空所填词代指上文的a copy of the book.指同一物用it;第二空指“同类的一个(同类不同物)”用one。5.It is almost five years _ we saw each other last time.A.before B.since C.after D.when选B。“It is+一般时间+sinceclause”表示从事情发生到现在多长时间了。6._ is our b
10、elief that improvements in health care will lead to a stronger.more prosperous economy.A.As B.That C.This D.It 选D。本题考查it作形式主语，真正的主语是that从句。7.As the busiest woman in Norton.she made _ her duty to look after all the other peoples affairs in that town.A.this B.that C.one D.it选D。本题考查it作形式宾语，真正的宾语是“to lo
11、ok after all the other peoples affairs in that town”。8.I just wonder _ that makes him so excited.A.why it does B.what he does C.how it is D.what it is 选D。It is that是一个强调句型。对what进行强调，what是宾语从句的主语。9.If I can help _ I dont like working late into night.A.so B.that C.it D.them选C。If I can help it意为“如果我有办法
12、。”表示有办法做某事或有办法控制某个局面。10.Do you like _ here?Oh,yes.The air,the weather,the way of life.Everything is so nice.A.this B.these C.that D.it 选D。it指代气候，空气等模糊环境。11.The doctor thought _ would be good for you to have a holiday.A.this B.that C.one D.it选D。本题考查it作形式宾语，it在这里代指后面的真正宾语to have a holiday。12.Everyone
13、knows that _ is dangerous to play with fire,but _ is difficult is to prevent children from playing with fire.A.it,it B.what,what C.it,what D.what,itD【分析】选D。很容易误选B，认为两空均考查形式主语。第一空填形式主语，真正的主语是其后的不定式 to play with fire。第二空填 what，what is difficult 是主语从句，注意 what is difficult 后的谓语动词 is。1.The Parkers bought
14、 a new house but _ will need a lot of work before they can move in.A.they B.it C.one D.which 练一练2.Toms mother kept telling him that he should work harder,but _ didnt help.A.he B.which C.she D.it3.The weather turned out to be very good._ was more than we could expect.A.What B.Which C.That D.It4.I dont mind her criticizing me,but _ is how she does it that I object to.A.it B.that C.this D.which5.The Foreign Minister said,“_ our hope that the two sides will work towards peace.”A.This is B.There is C.That is D.It isThank you!Thank you!
