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1、2022年高中英语 Unit 3 A healt hy life Grammar导学案 新人教版选修6【学习目标】学习代词it的各种用法。【重点难点】学会使用it有关的高级句型尤其是强调句型、it作形式主语。【课前自学】1、作人称代词(1)、it代替前面（或后面）的单数名词或分句等所表示的事物。e.g. I have a pet and I like it.（it代替前面的_）Although we cannot see it, there is air all around us. （it代替后面的_）They say he has left town, but I dont believe
2、 it. （it代替前面_）(2)、代替有生命但不能或不必分阴阳性的东西（包括婴儿）。e.g. Yesterday we saw a big tree. It was fully twenty meters high. （it代替前面的_）The baby cried because it was hungry. （it代替前面的_）(3)、在某些习惯说法中，可以代替人。e.g. - Someone is knocking at the door, Peter.- Who is _?- Who are singing? - _ me (4)、it与one的区别：这两个词都可以代表前面说过的名词
3、，但it用于同名同物的场合；one则用于同名异物的场合。e.g. - Do you still have the bicycle? - No, I have sold _- Is this knife yours? - No. It is Xiao Zhangs. Mine is _ _ on the desk.(5)、it与that的区别：两词都可代替某一特定名词，但that指同一类，并非同一个。e.g. The climate of South China is mild（温和的）; I like_ very much.（_指the climate of South China）The c
4、limate of South China is much better than _of Japan.（_指the climate）2用于表达时间，距离，天气、环境等。 Its half an hours walk from here to our school此处it 指代的是_. Its nice and warm hereBut its two oclock now, and its time for us to go to schoolit分别指代_, _.【课堂讲解】1.注意下列几种表示时间的句型.It is (high/about) time that（翻译）是我们离开去上海的时
5、候了。_.It is the first ( second . ) time that （翻译）这是我第一次被表扬。_.It is . since .（翻译）他们结婚三年了 _ .It is / was . when .（翻译） 中华人民共和国(PRC)是在1949年成立的。_. .It will be / was . before .（翻译）我们下次再见要两年以后了。_.2. it 作形式宾语，来代替真正的宾语（不定式，动名词或从句），以使句子保持平衡。例：We think it important to learn a foreign language.在该句中动词是_, 形式宾语是_,
6、宾补是_, 真正的宾语是_.We considered _ logical（合逻辑的） that not all plans can be put into practice. A. that B. quite C. it D. very.I hate _when young people speak to the elderly in a rude way. A. this B. that C. it D. one3. 为了保持句子平衡，避免头重脚轻，it作形式主语，来代替真正的主语(不定式，动名词,从句). It is +adj.+ ( for sb. ) to do sth. (A) I
7、t is +adj. + (of sb.) to do sth. ( B)在句型A中，形容词是用来修饰事情的形容词；如important, necessary, natural 或者easy , safe , mon , normal , hard , difficult ,dangerous , unusual, rare , impossible , pleasant等。如：对她来说参加派对很重要。_ = It is important that she (should ) e to the party .在句型B中，形容词必须是能表示逻辑主语特征的形容词，常见的有：bad , brave
8、 , careless, clever , cruel , foolish , honest , naughty , nice, polite, rude , silly , stupid , wise. 这个句型可以改写为：sb. is kind to do sth.如：你这样做很聪明。_你帮助老年人，真是太善良了。_. It takes/took sb. . to do sth. “做要花某人” 修我的电脑花了我一个月的时间。_. It is no good (use ) doing sth.该句中真正主语是_，表语可以是no good, no use, a waste of time .
9、 Its no use crying over the spilt milk.做这项工作是浪费时间。_. It doesnt matter whether ( if ) . 不论（是否）没关系 他支不支持这个计划都没关系。_. It happens (seems, appears ) that. 我恰巧在某本书上看到过这个问题。_. It is said (reported, learned.) that .“据说”（据报道，据悉） 据说他已经去纽约参加一个医学会议了。_ . It is a pity ( a shame . ) that . 真可惜我不能参加你们的婚礼了。_. It is i
10、mportant ( necessary, right, strange, natural.) that .记住that 后的从句应用虚拟语气（should + 动词原形），should 可以省去每天3杯水是必要的。_. It is suggested ( ordered . ) that .像 suggest这类表示建议、要求的词，that 后的从句要用_4.it用于强调句中。强调句型：It is/ was + 被强调部分（通常是主语、宾语或状语）+ that（当强调主语且主语指人可用 who）+ 其它部分。 针对I met Li Ming at the railway station ye
11、sterday.句子进行强调。强调主语：_ 强调宾语：_ 强调地点状语：_ 强调时间状语：_ 5 not until 句型的强调句 结构：It is/ was not until + 被强调部分 + that + 其它部分普通句：He didnt go to bed until/ till his wife came back.强调句：It was_ that he went to bed.【课堂练习】1. My bike is missing. I cant find _ anywhere.A. it B one C. that D ones 2. He didnt make _ clear when and where the meeting would be held.xx 天津卷A. this B. that C. it D. these3. _ was Jane that I saw in the library this morning. A. It B. He C. She D. That4. - Have you ever seen a whale alive? - Yes, Ive seen _.A. that B. it C. such D. one5. The color of
