高三英语选修7课时知识点复习课件8.ppt

1、表语从句定义：在复合句中作表语的从句叫做表语从句。它位于主句的系动词之后，对主语进行解释、说明，使主语的内容具体化。Period FourGrammar(1)&Grammar(2)由从属连词that，whether引导The question is whether you should ask them for help.问题是你是否需要向他们求助。The trouble is that I have never done the work before.麻烦的是以前我从没做过这个工作。由连接代词what，who，which引导Beijing is not what it used to be

2、.北京不再是过去的北京了。What she wants to know is which dress she should buy.她想知道的是应该买哪件衣服。由连接副词when，where，how，why引导That is where Lao She used to live.这就是老舍过去生活的地方。That is why I didnt pass the exam.这就是为什么我没通过考试的原因。表语从句的虚拟语气在表示建议、劝告、命令含义的名词作主句的主语时，表语从句的谓语动词需用“should动词原形”表示，should可省略。常见的词有：advice，suggestion，orde

3、r，proposal，plan，idea，request，requirement等。My suggestion is that we(should)start early tomorrow.我的建议是明天早出发。because，why引导的表语从句Thats because he didnt understand me.(Thats because.强调原因)Thats why he got angry with me.(Thats why.强调结果)应注意的问题表语从句还可以由as if，as though引导。He looks as if he were angry.他看上去好像很生气。名

4、词reason作主语时，后面的表语从句表示原因时要用that引导，不宜用because。The reason why I was sad was that he didnt understand me.我伤心的原因是他不理解我。连词that引导表语从句时，不能省略，尤其是从句较长或结构较复杂时。应注意的问题The problem with looking into space from the earth is that there is lots of dust in the earths air.从地球看太空的问题是空气中有很多灰尘。引导表语从句只能用 whether，不能用if。The

5、question is if the enemy is marching towards us.()The question is whether the enemy is marching towards us.()表语从句一定要用陈述语序The question is when can he arrive at the hotel.()The question is when he can arrive at the hotel.()不像宾语从句，在有表语从句的复合句中，主句时态和从句时态可以不一致。The question is who will travel with me to Be

6、ijing tomorrow.()The question is why he cried yesterday.()主语从句定义：在复合句中充当主语的从句叫做主语从句。由从属连词that，whether引导That they will win the match is certain.他们将赢得比赛是确定无疑的。Whether we go together or separately doesnt matter much.我们是一起走还是分开走都没关系。注意：引导位于句首的主语从句只能用whether，不能用if。由连接副词when，where，how，why引导Why he failed t

7、he English exam wasnt clear.他英语考试失败的原因不清楚。用it作形式主语It is a pity that you have made such a foolish mistake.很遗憾你犯了如此愚蠢的错误。It hasnt been decided where she will spend her holiday.她将去哪儿度假还没确定。应注意的问题注意同强调句型的区别It is a pity that you didnt go to see the film.太遗憾了，你没去看电影。It was in the morning that the murder t

8、ook place.谋杀发生在早晨。应注意的问题用it作形式主语的结构It is 名词(good news/an honor/a pity/a shame/no wonder/common knowledge)从句It is my honor to be invited to the party.被邀请参加聚会是我的荣幸。It isadj.(obvious，possible，likely，strange，probable，doubtful，certain，etc.)从句。It is certain that prices will go up.价格将会上涨是确定的。It is过去分词(know

9、n，said，believed，hoped，reported，proved，discussed，etc.)that从句。It is said that the sports meeting will be put off.据说运动会会推迟。应注意的问题用it作形式主语的结构It不及物动词(seem，appear，turn out，happen，occur to sb.etc.)It appears that he followed my advice.他好像听从了我的建议。Itdoes matter(make no difference，ect.)连接代词或连接副词引起的主语从句。It mak

10、es no difference where they have the meeting.他们在哪里开会毫无区别。应注意的问题主语从句的虚拟语气It is suggested that we(should)take the bus.人们建议我们乘坐公交车。It is/was形容词(important，natural，necessary，strange，etc)that从句，从句谓语动词多用shoulddo，should常省略。It is quite natural that he(should)not help her with her work.他没帮助她工作是很自然的。Why not tr

11、y your luck downtown，Bob?Thats _ the best jobs are.Awhere Bwhat Cwhen Dwhy_ I cant understand is _ he changed his mind.AThat；that BWhat；whyCWhich；how DThat；why【单项填空单项填空】_ in the regulations that you should not tell other people the password of your mail account.AWhat is required BWhat requiresCIt is

12、 required DIt requiresAfter Yang Liwei succeeded in circling the earth，_ our astronauts desire to do is to walk in space.Awhere Bwhat Cthat Dhow 答案ABCB用恰当的引导词填空_ he is an advanced worker is wellknown._ students have chances to take part in different kinds of outdoor activities is very important._ he

13、 comes or not doesnt matter._ side would win became clear.That/WhyThatWhetherWhich书信【写作要点】你升入高中已近两年了，这两年中你经历了很多，也收获很多，请你给你的父母写一封信，告诉他们你这两年来的高中生活，信中需包括以下要点：1远离父母，学会了独立；2升入高中以来认识了很多优秀的同学和老师，和他们中的很多人交了朋友，并从他们身上学到了很多东西；3喜欢学习数学和英语，对自己的成绩很满意；4课余时间参加各种课外活动。【写作要求】1短文内容应包含以上全部信息，可补充说明或调整顺序以使短文连贯，开头和结尾已经给出，不计

14、入总数。2词数120左右。一审体裁：本文是高中生活类文章，属于记叙文体。注意 what、when、where、why、how 等写作要素。二审格式：这是一封书信，按照书信的要求来写。用第一人称。三审内容：首先总体介绍自己的高中生活，然后介绍具体的生活学习经历，按照一定的顺序进行描写。写作时要主题明确，内容详实，层次分明，详略得当。【写作分析写作分析】第一步：认真审题第一步：认真审题第二步：提炼要点1独立生活live on ones own2让我高兴的是to my joy3和交朋友 make friends with sb.4取得很大进步made great progress5参加各种各样的课外

15、活动take part in different kinds of after-school activities第三步：扩点成句1我学会了怎样独立生活。I have learned how to live on my own.2我认识了很多老师和同学，从他们那里学到了很多。Ive got to know my classmates and teachers from whom Ive learned a lot.3另外，在业余时间，我经常参加各种各样的课外活动。Besides，in my spare time，I often take part in different kinds of a

16、fterschool activities.【品味佳作】Dear Mom and Dad，It is almost two years since I entered the senior high school.Now Id like to tell you something about my school life.As Im away from you，I have learned how to live on my own.And Ive got to know my classmates and teachers from whom Ive learned a lot.To my

17、joy，Ive also made friends with some of them.I like English and math best and have made great progress.Im pleased about that.So dont worry about my grades.Besides，in my spare time，I often take part in different kinds of afterschool activities.I often go to the English Corner where I can practice my s

18、poken English.As a result，Im good at English.Best wishesYours，Wang Zhen【名师点津】1这篇写作语言质朴，段落分明，过渡自然，语言流畅、通顺，符合本文的写作要求。此外，本文章中使用了许多错落有致的的语句，同时运用了一些较为高级的词汇和复杂句式，行文连贯，流畅，自然。如使用了定语从句from whom Ive learned a lot 以及where I can practice my spoken English等，这些句式的使用，使得文章层次感强，起到锦上添花的效果。2亮点句式回放Ive got to know my cl

19、assmates and teachers from whom Ive learned a lot.I often go to the English Corner where I can practice my spoken English.Besides，in my spare time，I often take part in different kinds of afterschool activities.【写作模板】Dear _，It is almost _ since I _.Now Id like to _.(介绍写信的目的)As Im away from you，I have learned _(学习生活方面的收获一)And Ive got _(学习生活方面的收获二)To my joy，Ive also _(自己的感受一)I like _ and _(学习生活方面的收获三)Im pleased about _.So dont worry about _(学习生活方面的收获四)Besides，_.I often _.As a result，_(学习生活方面的收获五)Best wishes.Yours，_