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一,二,一、选择合适的连接词名词性从句就是具有名词作用的从句。它在句中可以作主语、宾语、表语和同位语。解决有关名词性从句的问题的关键是:通过从句的位置,辨别从句的类型;分析从句,看看从句中所缺少的句子成分和句意,最终确定选用合适的连接词。通过下面几个句子,看看从句的类型:1.Thatourteamhadwonthematchmadeusexcited.(位于谓语之前,主语从句)2.Theheadmastersaidthatourteamhadwonthematch.(位于谓语之后,宾语从句)3.Thefactwasthatourteamhadwonthematch.(位于系动词之后,表语从句)4.Theheadmasterannouncedthenewsthatourteamhadwonthematch.(位于名词之后,同位语从句),一,二,一,二,一,二,一,二,一,二,二、名词性从句的几个特殊情况1.it用作形式主语的常见句型为:(1)It+be+形容词(obvious,true,natural,surprising,good,wonderful,possible,likely,certain,probable,etc.)+that.(2)It+be+名词词组(nowonder,anhonour,agoodthing,apity,nosurprise,etc.)+that.(3)It+be+过去分词(said,reported,thought,expected,decided,announced,suggested,etc.)+that.(4)It+seems/appears/happens等不及物动词及短语+that.(5)Itdoesntmatter(makesnodifferences,etc.)+连接代词或连接副词引导的主语从句,一,二,Itmakesnodifferencewhereweshallhavethemeeting.Itisapity(that)wehaventcontactedforages.很遗憾,我们几年没联系了。Ithasnotbeendecidedwherethemeetingistobeheld.在哪里开会还没决定。Itdoesntmatterwhethershewillcomeornot.她是否来这无关紧要。,一,二,2.it用作形式宾语如果宾语从句后还有宾语补足语,则必须用it作形式宾语,而将宾语从句后置,并且that不能省略。句型结构为:(1)make/find/feel/consider/thinkit+adj./n.(宾语补足语)+that.(2)like/dislike/love/hate/appreciate+it+if/when.Ithinkitbestthatyoushouldstayhere.我认为你最好住这儿。Hehasntmadeitknownwhenheisgoingtogetmarried.他还没宣布他何时结婚。Ihateitwhenpeoplelaughatthedisabled.我讨厌别人嘲笑我的残疾。,一,二,3.动词doubt后接宾语从句时,通常要用whether(if)来引导,而不用that,因为doubt表示“怀疑”,其意不肯定、不明确;但是如果它用于否定式,其后的宾语从句则通常用that来引导,因为notdoubt表示“不怀疑”,其意是肯定的、明确的。Idoubtif/whetherhellcome.我拿不准他是否会来。Idontdoubtthathewillsucceed.我敢肯定他会成功。Doyoudoubtthathewillwin?你不相信他会赢吗?,一,二,4.besure后的名词性从句通常用that引导,而benotsure后的名词性从句则通常用whether/if来引导:Imsurethatheishonest.我肯定他是诚实的。Imnotsurewhether/ifheishonest.我不敢肯定他是否诚实。5.介词后一般不接that引导的宾语从句,但介词except及in除外。Hisreportiscorrectexceptthatsomedetailsareomitted.除了有些细节未提到之外,他的报道是正确的。Criticismandself-criticismisnecessaryinthatithelpsustocorrectourmistakes.批评和自我批评是必要的,因为它能帮助我们改正错误。,一,二,6.否定转移在宾语从句中,主句的谓语动词(词组)是think、believe、suppose、imagine、consider、expect、guess、besure等,且主句的主语是第一人称并为一般现在时,对宾语从句的否定一般转移到主句上,表示说话者提出一种委婉的看法或主张。IdontbelieveIvemetyoubefore.我认为我没有见过你。Idontthinkyouwillbelate.我认为你不会迟到。,.完成句子(高考真题变式训练)1.Thebestmomentforthefootballstarwashescoredthewinninggoal.2.Somepeoplebelievehashappenedbeforeorishappeningnowwillrepeatitselfinthefuture.3.ExactlythepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround1565.4.Pickyourselfup.Courageisdoingyoureafraidtodo.5.AsJohnLennononcesaid,lifeishappenstoyouwhileyouarebusymakingotherplans.,when,whatever,when,what,what,6.thedelayedflightwilltakeoffdependsmuchontheweather.7.Grandmapointedtothehospitalandsaid,“ThatsIwasborn.”8.IsittruethatMikerefusedanofferfromYaleUniversityyesterday?Yeah,butIhavenoideahedidit;thatsoneofhisfavouriteuniversities.9.Ithinkimpressesmeabouthispaintingisthecoloursheuses.10.Itisdifficultforustoimaginelifewaslikeforslavesintheancientworld.,When,where,why,what,what,.单句改错1.Thequestionisiftheycancooperatewithus.2.Whatwecantgetseemsbetterthanthatwehave.3.Itwasamatterofwhoeverwouldtaketheposition.4.Marywroteanarticleonhowtheteamhadfailedtowinthegame.5.Pleaseremindmewherehesaidhewasgoing.Imaybeintimetoseehimoff.6.Hehasanideawhichhecanmakethescientificinstrumentinabetterway.,答案:ifwhether,答案:thatwhat,答案:whoeverwho,答案:howwhy,答案:wherewhen,答案:whichthat,7.Sheneverdoubtedforamomentwhethershewasright.8.Itremainstobeseenifthenewlyformedcommitteespolicycanbeputintopractice.9.Fromspace,theearthlooksblue.Thisiswhyaboutseventy-onepercentofitssurfaceiscoveredbywater.10.ItiswellknowntotheworldisthatChinahasverytoptechnologyinspaceindustry.,答案:whetherthat,答案:ifwhether,答案:whybecause,答案:ItWhat/去掉第二个is,
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