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1、2012学年上学期高二年级英语导学案 选修六Unit3 A healty life 编制人：赵奇Book6 Unit3 it用法导学案Class： group: name: 组内评价: 教师评价: 【使用说明与学法指导】课前预习：课前自学完it的用法。并梳理出it用法的知识树。课上探究：1. 5分钟预习成果展示 2. 10分钟合作探究能力提升 3. 10分钟总结，强化落实。 4. 15分钟完成当堂检测。 5. 5分钟质疑【学习目标】知识目标：学习代词it的各种用法。能力目标：能熟练运用到各种场合，能够解答与之相关的习题，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】一、
2、代词it 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. You cannot eat your cake but have 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 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 twent
3、y metres 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 _?- _ me.- Who are singing?- It is the children.(4)、it与one的区别：这两个词都可以代表前面说过的名词，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 ha
4、ve 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 climate of South China is much better than_of Japan.（_指the climate）2用于表达时间，距离，天
5、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 school此处it分别指代_, _, _.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
6、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。_.It is / was . before .（翻译）我们下次再见要两年以后了。_二、引导词it1. 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) It 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 , c
7、ommon , 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 ) come 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 , careless, clever , cruel , foolish ,good （好心的）, honest , naughty , nice（有教养的）, polite, rude , silly
8、 , 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 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, no value, no importance, a waste of time . Its no use crying over the spilt milk. 做这项工作是浪费时间。_. It doesnt
9、 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 . 真可惜我们以相近的比分失掉了比赛。_. It is important ( necessary, right, strange, natural.) that .记住that
10、后的从句应用虚拟语气（should + 动词原形），should 可以省去妈妈说每天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_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。动词 +it +形容词/名词 +（for sb）+to do/ that-从句为了记忆方便我们可称该句型为“6123结构”。6 指主句中常用的动词：think, believe, make, find, consider, feel；1 指的是形式宾语 it；2 指的是宾
11、补的两种形式：形容词或名词；3 指的是真正宾语的三种形式：不定式短语, 动名词短语或 that 引导的宾语从句。 例：We think it important to learn a foreign language.在该句中动词是_, 形式宾语是_, 宾补是_, 真正的宾语是_I felt _advisable to do nothing.A. that B.quite C. it D.very用在某些动词（like, love, hate, appreciate, help, look 等）之后。it 无具体实际意义。I hate it when people cry.I would mu
12、ch appreciate it if you could come.Ill not give you any trouble if i can help it.Though she is 40, she doesnt look it.I take it (that) he will come on time. 我认为他会准时来的。You can put it that it was arranged before. 你可以说这是以前安排的。Rumor has it that the defense minister will soon resign. 据传闻，国防部长不久就要辞职。用于习语中
13、Got it . 明白了。Keep at it ! 别松劲Make it 1) 成功2）及时到达Thats it . 1) 没有别的了 2) 表称赞 “就是这样”Catch it 受批评；受罚动词 + prep + it + that-从句。如：See to it that youre not late again. 注意千万不要再迟到。Look to it that this doesnt happen again. 注意不要再发生这种事。You may rely on it that hell come to meet you. 你放心，他会来接你的。I cant answer for i
14、t that he will come. 我不能保证他会来。动词 + it + 介词短语+ that-从句。如：I owe it to you that i am still alive. 多亏有你我才仍然活着。I took it for granted that he would help us. 我认为他会帮助我们的。【课堂检测】1. My bike is missing. I cant find _ anywhere. A. oneB. onesC. it D. that 2. - Whos that?- _ Professor Li. A. ThatsB. ItsC. HesD. Th
15、iss3. _ was Jane that I saw in the library this morning. A. It B. HeC. SheD. That4. - Have you ever seen a whale alive?- Yes, Ive seen _.A. that B. itC. suchD. one5. The color of my coat is different from _ of yours. A. thisB. thatC. it D. one6. _ will do you good to do some exercise every morning.
16、A. It B. There C. ThoseD. You7. We think _ our duty to pay taxes to our government. A. thatB. thisC. itsD. it8. The climate of Shanghai is better than _ of Nanjing.A. thatB. itC. which D. what【课下作业】1. （四川卷3）I like this house with a beautiful garden in front, but I dont have enough money to buy_. A.
17、one B. it C. this D. that2. 浙江卷4.）Ive read another book this week. Well, maybe is not how much you read but what you read that counts. A .this B. that C. there D. it 3. （江西卷27）It was _ he came bank from Africa that year _ he met the girl he would like to marry. A. when; then B. not; until C. not unt
18、il; that D. only; when 4. （辽宁卷34）Its the first time that he has been to Australia, ?A isnt he B hasnt he C isnt it D hasnt it5. Mary speaks in a low voice; _ is difficult to know what she is saying.A. itB. thatC. soD. she6. It was _ I met Mr. Green in Shanghai.A. many years thatB. many years beforeC
19、. many years ago thatD. many years when7. _ is not everybody _ can draw so well.A. It, allB. It, that C. There, whoD. There, that8. So _ that no fish can live in it.A. shallow is the lakeB. the lake is shallowC. shallow the lake isD. is the lake shallow9. If I can help_, I dont like working late int
20、o the night.A. so B. that C. it D. them10. _ worries me the way he keeps changing his mind. 2007 山东卷AThis BThat CWhat DIt 11. _ felt funny watching myself on TV. 2007 全国卷IIA. OneB. ThisC. It D. That12. He didnt make _ clear when and where the meeting would be held.2007 天津卷A. this B. that C. it D. these