bookUnitGlobalwarming语法公开课教程.pptx

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1、Grammar：“It is/was.that.”强调句型2016年3月2日第1页/共37页 口诀：代词 it 本意它,既可指这又指那;时间天气均可指,谈到距离也用它;假主假宾均可做,强调句型跟that。第2页/共37页I.代词 it a.用作人称代词,代替前文提到的事物。My watch is missing.I cant find(it)anywhere.Her father has gone abroad.Have you heard about(it)?第3页/共37页b.代替指示代词this,that。Whats this?(Its)a computer.Whose pen is t

2、hat?Its mine.c.表示时间、天气、距离、季节等。Its time for lunch.Its getting warmer and warmerIts forty years since my hometown was liberated.Its summer now.How far is it from here to the police station.第4页/共37页II.引导词：a.作形式主语,代替由不定式,动名词或从句表示的真正主语。其基本句型为：It(形式主语)+adj.+to+v.It(形式主语)+adj.+that(subject(主语)+v.)第5页/共37页

3、It is very important to help each other It is no use/useless going there again Its not decided yet when they will leave for Shanghai 第6页/共37页b.作形式宾语主语谓语it(形式宾语)宾语补足语to do sth.(doing sth.或that从句).第7页/共37页 Marx found it important to study the situation in Russia.She thought it no use to write to him a

4、gain.They want to make it clear to the public that they do an important and necessary job.第8页/共37页c.用在强调句型中,为了强调句子的某一成分(通常是主语、宾语或状语),常用结构:It is/was 被强调部分that(who).第9页/共37页一、强调句型的一般形式 在英语中，我们常用“It is/was.who/that.”句型来强 调句子的某一成分(一般是句子的主语、宾语或状语，但不能是句子的谓语)。在这个句型中，it没有词汇意义，只是引出被强调的成分。如果被强调的成分是表示人的 词，用who

5、或that来连接都可以。如果是其他成分，则 一律用that来连接。第10页/共37页 It was I who(that)met Tom in the street yesterday.It was Tom that I met in the street yesterday.It was in the street that I met Tom yesterday.It was yesterday that I met Tom in the street.主语宾语时间状语地点状语 I met Tom in the street yesterday 第11页/共37页典型例题分析：1)It w

6、as last night _ I saw the film Star Wars Awho Bwhen Cthat Dwhichc第12页/共37页答案C 强调句的结构是：It+be+强调部分+that(who)+主谓句。强调句的连词只有两个，that和who。当强调的部分是人，且为句子的主语时，才用who，其余用that。第13页/共37页2)It is ten years _ Miss Green returned to Canada Athat Bwhen Csince Das 答案 C考点是连词用法。本题易误选为A 其实本句不是强调句。c第14页/共37页 若是去掉It bethat还

7、应是一个完整的句子。而本句去掉It isthat,只剩下ten years Miss Green returned to Canada 不成句。因此本句不是强调句。It is+时间+since.，其中 is=has been.第15页/共37页二、强调句型的疑问式1一般疑问式：Is/Wasit被强调部分that/who 其他成分？Was it during the Second World War that he died?他是二战期间死亡的吗？Was it last year that you got the degree?你是在去年获得学位的吗？第16页/共37页2特殊疑问式：特殊疑问词i

8、s/wasitthat其他成分？Where was it that you met Tom yesterday?昨天你是在哪儿遇见汤姆的？Why is it that you want to change your idea?你为什么想改变你的主意呢？第17页/共37页Was it on a lonely island_he was saved one month after the boat went down?AwhereBthatCwhich Dwhat解析：选 。考查强调句型。强调句的结构是：“It is/was被强调的部分that/who句子的其他部分”，表示“正是”或“就是”。强调

9、句型的一般疑问句结构：Is/Was it.that/who.?B典型例题分析B第18页/共37页三、not.until型强调句式1句型为：It is/was not until被强调部分that其他部分 普通句：He didnt go to bed until/till his wife came back.直到妻子回来他才睡觉。强调句：It was not until his wife came back that he went to bed.直到妻子回来他才睡觉。第19页/共37页2注意强调句型中只能用until，不能用till。但如果不是强调 句型，till，until可通用。且强调句

10、型It is/was not until.已经是否定句了，所以that后面的句子的谓语要用肯定形式。I hadnt realized she wasnt English until/till she spoke.It was not until she spoke that I had realized she wasnt English.直到她开口说话我才知道她不是英国人。第20页/共37页It was_he came back from Africa that year_he met the girl he would like to marry.Awhen;then Bnot;until

11、Cnot until;that Donly;when解析：选 。考查强调句型。句意：他直到那年从非洲回来之后才遇到了他想与之结婚的女孩。此句是“not until.”的强调句型。C典型例题分析：C第21页/共37页四、使用强调句型的几个注意事项1若被强调成分是主语，who/that之后的谓语动词应该在人称和数上与被强调的主语保持一致。It is he who/that often helps me with my English.是他经常帮我学英语。It is trees that we plant on the hillside every year.我们每年都在山坡上种的是树。第22页/共

12、37页2即使被强调成分是句中的时间状语、地点状语、原因状语等，也不能用when,where,because等，要用that。It was in front of the bank that the old lady was robbed.老太太是在银行前面被抢劫的。It was because of the heavy rain that he came late.由于下大雨他来晚了。第23页/共37页3若被强调成分是作主语的代词，用主格；若是作宾语的代词，则用宾格。It was he that helped me yesterday.昨天帮我的人是他。It was me that he he

13、lped yesterday.他昨天帮的人是我。第24页/共37页4强调句中只用两种时态，即一般现在时和一般过去时。原句谓语动词是一般过去时、过去完成时和过去进行时，用It was.that/who.，其余的时态用It is.that/who.It is you who/that are to blame.是你该受到指责。It was chairman of the committee that we elected her.我们选她当委员会主席。第25页/共37页五、强调句型与其他相似句型的辨析 强调句型最容易与定语从句、主语从句和状语从句等 混淆，区分它们的关键在于：如果把句子中的It i

14、s/was 和that/who去掉，剩下的部分还是一个完整的句子，并 且句子意思依然完整，则此句为强调句型；否则，应 仔细分析句子，判断该句是何种从句。第26页/共37页It was at the school gate that I met an old friend of mine.我是在学校大门口遇见一位老朋友的。()It is always the mouth which talks too much that arouses troubles.言多必失。()It was such a hot day that even the crops withered.天气极度炎热，连庄稼都枯萎

15、了。()强调句 定语从句结果状语从句 第27页/共37页1.It was this village _ I was brought.A.where B.that C.on which D.which练习 2.It was in this village _ I was brought up.A.where B.that C.on which D.whichI第28页/共37页3.-Was it under the tree _ you were talking to a friend?-Sure.But when I got back there,the bike was gone.A.tha

16、t B.where C.which D.while第29页/共37页II.每空填一词,使该句与所给句子的意思相同。1.We depend on energy to do many things._ _ energy _ we depend on to do many things.2.He didnt go to school because he was ill._ _ because he was ill _ he didnt go to school.It isthatIt wasthat第30页/共37页3.My father didnt return until 11 oclock

17、last night._ _ _ _ 11 oclock _ my father returned last night.4.David bought a walkman from a store yesterday._ _ David _ bought a walkman from a store yesterday.It was not untilthatIt wasthat/who第31页/共37页5.The mountain climber was rescued with the help of the local people._ _ with the help of the lo

18、cal people _ the mountain climber was rescued.6.Her uncle moved out of the city and settled down in a small village for this reason._ _ for this reason _ her uncle moved out of the city and settled down in a small village.It was thatIt wasthat第32页/共37页7.What on earth do you want me to say?_ _ _ _ yo

19、u want me to say?8.I didnt receive the managers reply until nearly a month later._ _ _ _ nearly a month later _ I received the managers reply.What is it that It was not untilthat 第33页/共37页9.Marx met Tracy in Pairs in 1845._ _ in Pairs _ Marx met Tracy in 1845.10.The football match had to be called o

20、ff because it rained heavily._ _ because it rained heavily _ the football match had to be called off.thatIt wasthatIt was第34页/共37页IV.根据括号内的提示将下列句子翻译成英语。1.总的来说，我很喜欢这本书。(on the whole)2.昨天的平均温度是28摄氏度。(average)On the whole,I like this book very much.The average temperature yesterday was 28C.第35页/共37页Homework第36页/共37页感谢您的观赏！第37页/共37页