主語從句教案

1、主語從句適用學(xué)科英語適用年級i咼二適用區(qū)域全國課時時長（分鐘）60分鐘知識點主語從句連接詞的基本用法教學(xué)目標(biāo)能夠正確分析從句結(jié)構(gòu)；掌握連接詞的基本用法教學(xué)重點掌握that、what、whether等的用法，能夠正確判斷從句所缺成分教學(xué)難點It做形式主語教學(xué)過程一、課堂導(dǎo)入Whatpartservesassubjectineachsentence?Atreehasfallenacrosstheroad.Youareastudent.Tofindyourwaycanbeaproblem.Smokingisbadforyou.“Howdoyoudo?isagreeting.二、復(fù)習(xí)預(yù)習(xí)給出主語從句，

2、分析成分:Whatshesaidisnotyetknown.Thatweshallbelateiscertain.Itiscertainthatweshallbelate.、知識講解知識點1:主語從句的概念及其連接詞：用作主語的從句叫主語從句，它是名詞性從句之一。引導(dǎo)主語從句的連接詞有：連詞that,whether；連接代詞who,what和which；連接副詞when,where,how和why等。知識點2：連接詞的用法。1.【考查點】that無意義，只起到引起從句的作用Thattheyarebadlyinneedofhelpisquiteclear.他們急需幫助，這是十分明顯的。Thatt

3、heywereintruthsisterswasclearfromthefacialresemblancebetweenthem.很明顯，她們確是親姐妹，她們的臉型很相似。Thatonebelievesinoneselfindoingeverythingisveryimportant.Thathebeathisopponentinthetennisgameencouragedhisteammates.2.【考查點】what有意義，“所的”或隨句子意思而定。在從句中作主語，賓語和表語。Whattheteachersaidtodaywasquiteright.老師今天說的話是十分正確的。Whatm

4、akesherdifferentfromothersisherstrangebehavior.Whatshedidisnotyetknown.她干了什么尚不清楚。3【考查點】whether有意義，“是否。Whethertheywillsellthehouseisnotyetdecided.他們是否賣掉這所房子還沒有決定。Whetheritistrueisnotcertain.Whetherhellcomehereisntclear.他是否會來這里還不清楚。4.【考查點】when引起表示時間的主語從句，意思是“.的時候”或“何時.Whenwecangetridoftherubbishisstil

5、lunknown.5.【考查點】where引起表示地點的主語從句，意思是“在.的地方”或“到.的地方”Wherethemeetingwillbeheldhasntbeendecided.6【考查點】how引起表示方式的主語從句,意思是“.的方式”或“如何.”Howwecangetintouchwithhimisthemostimportant.Howthishappenedisnotcleartoanyone.這事怎么發(fā)生的，誰也不清楚。7.【考查點】why引起表示原因的主語從句，意思是“的原因或“為什么Whyhesaidthatrubbishatthemeetingpuzzledme.8.【

6、考查點】who誰，whose誰的Whowillbechosenisthetopicofconversationnow.Whosehandwritingisthemostbeautifulisveryclearnow.9【考查點】疑問詞+ever也可以引起主語從句Whateverwassaidheremustbekeptsecret.這里說的話都應(yīng)當(dāng)保密。Whoevermakesmistakesmustcorrectthem.凡犯了錯誤的人都必須改正。Whoeverfailstoseethiswillmakeabigmistake.知識點3：常以it作形式主語的句型It+be+形容詞(obvio

7、us,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable,etc.)+that從句。Itiscertainthatshewilldowellinherexam.毫無疑問，她考試成績會很好。Itisprobablethathetoldhereverything.很可能他把一切都告訴她了。ItistruethattheChinesevolleyballteamoncewonsixworldchampionships.+that從句。It+be+名詞詞組(nowonder,anhonor,agoo

8、dthing,apity,nosurprise,etc.)Itisapitythatwecantgo.很遺憾我們不能去。It+be+過去分詞(said,reported,thought,expected,decided,announced,arranged,etc.)+that從句。ItissaidthatMr.GreenhasarrivedinBeijing.據(jù)說，格林先生已經(jīng)到了北京。It+seem,happen等不及物動詞及短語+that從句IthappenedthatIwasoutthatday.碰巧我那天外出了。Itdoesntmatter(makesnodifferenceetc.

9、)+連接代詞或連接副詞引起的主語從句。Itdoesntmatterwhethershewillcomeornot.她是否來這無關(guān)緊要。當(dāng)that引導(dǎo)的主語從句出現(xiàn)在疑問句中時，要用it作形式主語，而把主語從句后置。Doesitmattermuchthattheywillnotcometomorrow?他們明天不來很要緊嗎？當(dāng)主語從句出現(xiàn)在感嘆句中時，要用it作形式主語，而把主語從句后置。Howstrangeitisthatthechildrenaresoquite.孩子們這么安靜真奇怪。知識點4：1.【考查點】在Itisinsisted/ordered/commanded/suggested/

10、advised/proposed/demanded/required/requested.that.結(jié)構(gòu)中，謂語動詞常用should+動詞原形。Itissuggestedthatweshouldthinktwicebeforeweact.Itisrequestedthatweshouldchangetheoldinstrument.2【考查點】在Itisnecessary/important/strange/surprisedthat.或Itisapity/shamethat.結(jié)構(gòu)中，用should+動詞原形Itisapitythatheshouldgowithouttellinganyone

11、.Itisapitythatyoushouldmissthebus.真遺憾，你錯過了那班公共汽車。Itisnecessarythatyoushouldtellhimthetruth.知識點5：單個的主語從句作主語時謂語動詞用單數(shù)；由and連接的兩個主語從句作主語時，謂語動詞用復(fù)數(shù)WhenwewillgotoAustraliaisnotdecided.Whowillgothereandwhentheywillgotherearenotknown.Howandwhytheyhavedonethatisnotknown.四、例題精析【例題1】makesthebooksoextraordinaryis

12、thecreativeimaginationofthewriter.A.ThatB.WhatC.WhoD.Which【答案】B解析】本題考查主語從句的關(guān)系詞辨析。句意：讓這本書如此不同尋常的是作者富于創(chuàng)造的想象力例題2】thedelayedflightwilltakeoffdependsmuchontheweather.A.WhyB.WhenC.ThatD.What【答案】B【解析】本題考查主語從句的關(guān)系詞辨析。句意：延誤了的航班何時起飛主要取決于天氣。例題3】ExactlythepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround1565.A.whetherB.whyC.whe