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1、2018高中英语人教版选修6课件：Unit 3 A healthy life 3.3-2-Section Grammar一二一、阅读下列句子,指出总结代词it所指代的内容1.Whose umbrella is this?It is Marys.2.Who is knocking at the door?Its me.3.It is a fine day today.4.Its a long time since they left.5.I bought a new pencil yesterday,but I cant find it now.答案：指代“umbrella”答案：指代“我”答案
2、：指代“天气”答案：指代“时间”答案：指代“pencil”-3-Section Grammar一二6.It is no use crying over spilt milk.7.Marx found it important to study the situation in Russia.8.What can I do for you?Thank you.I can manage it.答案：指代“crying over spilt milk”答案：指代“to study.”答案：指代“要帮忙的事”-4-Section Grammar一二二、根据所学知识,用合适的词填空1.The award
3、 on the left is more beautiful than on the right.2.Few pleasures can equal of a cool drink on a hot day.3.The hunters younger sister is taller than the elder.4.is 3 years since he joined the army.5.I bought a dictionary three years ago and I am still using now.6.I bought a dictionary three years ago
4、 but I am going to buy a newsoon.7.is well known to us all that the earth is round.8.is well known to us all,the earth goes around the sun.the one that one It it one It As-5-Section Grammar-6-Section Grammarit的用法的用法(1)一、用于指代人以外的一切生物、无生命的东西和事情1.指动物和植物。Oh,its Lucys cat.Wheres tea grown?Its grown in th
5、e southeast of China.2.指代一些无生命的东西。Is it your watch?3.代替上文提到过的整个事情。You mustnt play on the road.Its dangerous.-7-Section Grammar二、用于指代人1.指代说话者心目中不太清楚的那个人,常在打电话或敲门时用。Who is knocking at the door?Its me.2.指代性别不详的婴幼儿或在不计较性别时,也可用it来指人。The child smiled when it saw its mother.I dont know who it is.3.在回答用指示代词
6、表示人的特殊问句时,常用it指人。Whos that?Is it Kate?-8-Section Grammar三、用于指时间、距离、价值、度量和自然现象等1.表示时间。What time is it?Its ten.Its summer in Australia now.2.表示距离。Wheres the farm,Li Lei?Is it far?No,its quite near.3.表示自然现象。Sometimes it snows and the land is all white.-9-Section Grammar四、用作形式主语,真正的主语(不定式、动词-ing 形式、从句)放
7、句尾1.It+is/was+形容词/名词+(for/of sb.)+动词不定式短语.Its important for us to keep the water clean.Its very kind of you to say so.Its a good habit to get up early and go to bed early.2.It+will be/is/was+no use/no good doing sth.Its no good telling himhe wont listen.3.It+谓语结构+从句.It occurred to me that I should a
8、sk the police for help.Its true that he may fall behind the other students.It is said that there will be a big test in a few days.-10-Section Grammar五、用作形式宾语,当复合宾语的宾语是不定式、动词-ing形式、宾语从句时,往往把宾语放到宾语补足语之后,而用it作形式宾语,放在宾语补足语之前。make/think/believe/find/feel/consider.+it+adj.+to doHe found it not easy to lea
9、rn a foreign language well.I think it appropriate to invite her to speak at the meeting.六、由it构成的常用固定搭配1.make it/manage it在口语当中相当于succeed,表示“成功,做到,说定,赶上,及时到达”。Its hard to make it to the top in show business.-11-Section Grammar2.as it is(1)相当于in fact,in reality表示“事实上,实际情况是”。We had planned to finish th
10、e task today,but as it is we probably wont finish it until next week.(2)相当于方式状语从句,表示“照原样”。Leave the table as it is.3.thats it(1)相当于thats all或thats so much,表示“到此为止,没有别的了”。You can have one more sweet,and thats it.(2)相当于thats right,表示“对啦”。I guess the key to the problem is the choice“A”.Thats it.-12-Sec
11、tion Grammar4.catch it在口语中,相当于be punished/scolded for doing sth.wrong,表示“因做错事而挨骂、受责备、受批评、受惩罚”。If your father finds you here youll really catch it!5.get it/understand it 理解;明白Could you please fetch me some chalks?Got it!6.take it easy/take things easy 放松点;别紧张相当于dont worry或dont hurry,用来劝告别人,表示“不要慌,别担心
12、,沉住气”。Take it easy!He will do it well.7.believe it or not,表示“信不信由你”。Believe it or not,we were left waiting in the rain for two hours.-13-Section Grammar8.it all depends/that all depends在口语中,相当于it hasnt been decided yet,表示“那得看情况,还没有定下来”。Are you going to the countryside for holiday?It/That all depends.9.its up to sb.在口语中,相当于its decided by sb.表示“由决定,由负责,取决于”。Shall we go out for dinner?Its up to you.-14-Section Grammar-15-Section Grammar-16-Section Grammar-17-Section Grammar-18-Section Grammar