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1、宾语从句宾语从句主语从句主语从句同位语从句同位语从句表语从句表语从句名词性从句名词性从句Subject Clause第1页/共16页 内容内容内容内容 主语从句的考点主语从句的考点主语从句三要素主语从句三要素主语从句定义主语从句定义Subject Clause第2页/共16页 内容内容内容内容 主语从句的考点主语从句的考点主语从句三要素主语从句三要素主语从句定义主语从句定义Subject Clause第3页/共16页Find out the Subject in the following sentences:1.A tree has fallen across the road.2.She
2、is from China.3.To find your way can be a problem.4.Smoking is bad for you.5.What she said is not true.6.Whenever you finish the task is certainly all right.名词代词不定式动名词句子句子Subject ClauseConclusion:A clause(subordinate clause)which serves as subject of a sentence can be called Subject Clause.第4页/共16页观
3、察以下句子，注意主语从句的特点：观察以下句子，注意主语从句的特点：That the earth travels round the sun is a well-known fact.Whether the artist can do it or not is uncertain.Why he did it remains a mystery.Whoever breaks the law will be punished.Subject Clause第5页/共16页 内容内容内容内容 主语从句的考查难点主语从句的考查难点主语从句三要素主语从句三要素主语从句定义主语从句定义Subject Clau
4、se第6页/共16页主语从句主语从句主语从句主语从句3 3 3 3要素要素要素要素从句语序从句语序 陈述语气：陈述语气：先先主主后后谓谓谓语动词常用谓语动词常用单数单数1.What he said makes me sad.2.Why he made so many mistakes is not clear.引导词引导词Subject Clause第7页/共16页主语从句的引导词主语从句的引导词从属连词：that,whether连接代词：who(ever),which(ever),what(ever)连接副词：where(ever),when(ever),why,howSubject Cla
5、use主语从句引导词的选择主要是根据从句的结构和意义来选择：第8页/共16页1.1.连接词：连接词：that;whetherthat;whether 如果从句的意义和结构完整，则选用that或whether。-thatthat 本身没有意义，不作句子成分，只表示从句的开始，位于句首时，that不能省略.-whetherwhether表示“是否”，不作句子成分,位于句首。1）_people cut down too many tress destroyed the balance of nature.2)_we will go camping tomorrow depends on the we
6、ather.3)_the solid shape would last or not is not clear.4)_you will win the medal seems unlikely.ThatWhetherWhetherThat第9页/共16页2.2.连接代词：连接代词：who,which,what（什么，所的）,whose,whomWhoever/whichever/whatever在主语从句中不含有疑问意义。如果从句的意义和结构不完整不完整，根据从句的意义和结构选择相应的连接代词。连接代词在从句中起名词性作用名词性作用，担当一定成分（主语、宾语、表语等）。Subject Clau
7、se1._willtakepartinthemeetinghasnotbeendecided.2._studentwillwinfirstisuncertain.3._Icantunderstandiswhyhehaschangedhismind.4._failstoseethiswillmakeamistake.5._wassaidheremustbekeptsecret.WhoWhichWhatWhoeverWhatever第10页/共16页3.3.连接副词：连接副词：where(ever),when(ever),why,how连接副词when,where,why,how在从句中作(时间、
8、地点、原因、方式)状语。1）_ we should leave it is a problem.2）_he will be back depends on the weather.3)_this happened is not clear to anyone.4)_these Greek statues are in a British museum is an important part of our story today.Subject Clause Where When HowWhy第11页/共16页总结总结做题突破方法三部曲 一、首先分清主句和从句 二、分析从句缺何种成分 三、根据
9、分析，选择恰当的连接词Subject Clauseeg._theywouldsupportuswasaproblemWhether第12页/共16页 内容内容内容内容 主语从句定义主语从句定义Subject Clause主语从句三要素主语从句三要素主语从句的考查难点主语从句的考查难点第13页/共16页主语从句的考查难点主语从句的考查难点 主语从句有时为了使句子结构平衡，避免句子“”头重脚轻“”，常用itit作形式主语代替主语从句，放于句首，而把真正的主语（即主语从句）置于句末。主语从句后的谓语动词一般用单数形式。常用句型如下：（1）It+be+名词+that从句 名词有（no wander,a
10、n honor,a pity,a fact,a shame,good news,a surprise,etc）1._(遗憾的是)that we lost the game.2._(惊奇的是)that he cheated in the exam.3._(事实是)thatEnglish is being accepted as an international language.4._(不足为奇的是)that computers are taking over the world.It is no wonder It is a pityIt is a surpriseIt is a factSu
11、bject Clause第14页/共16页（2）It+be+形容词+that从句 形容词有（obvious,true,natural,good,wonderful,funny,no surprising,possible,certain,likely,fortunate,doubtful,etc）1._(有必要)thatanefficientworker(should)accomplishhisworkontime2._(重要的是)that you(should)think before you say or do anything3._(很明显)thatthismeasureiseffective.Subject ClauseIt is obvious It is necessary It is imporatant that常含有一个表示“有必要的”之类的形容词。在这种结构中，从句应当“+that+主语主语+(+(should)+)+动词原形动词原形”形式（should常予以省略，而直接接动词原形）。常见的此类形容词有“important/imperative/necessary/essential有必要的、urgent迫切需要的、desirable合意的.等第15页/共16页感谢您的观看！第16页/共16页