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一,二,一、選擇合適的連接詞名詞性從句就是具有名詞作用的從句。它在句中可以作主語、賓語、表語和同位語。解決有關(guān)名詞性從句的問題的關(guān)鍵是:通過從句的位置,辨別從句的類型;分析從句,看看從句中所缺少的句子成分和句意,最終確定選用合適的連接詞。通過下面幾個句子,看看從句的類型:1.Thatourteamhadwonthematchmadeusexcited.(位于謂語之前,主語從句)2.Theheadmastersaidthatourteamhadwonthematch.(位于謂語之后,賓語從句)3.Thefactwasthatourteamhadwonthematch.(位于系動詞之后,表語從句)4.Theheadmasterannouncedthenewsthatourteamhadwonthematch.(位于名詞之后,同位語從句),一,二,一,二,一,二,一,二,一,二,二、名詞性從句的幾個特殊情況1.it用作形式主語的常見句型為:(1)It+be+形容詞(obvious,true,natural,surprising,good,wonderful,possible,likely,certain,probable,etc.)+that...(2)It+be+名詞詞組(nowonder,anhonour,agoodthing,apity,nosurprise,etc.)+that...(3)It+be+過去分詞(said,reported,thought,expected,decided,announced,suggested,etc.)+that...(4)It+seems/appears/happens等不及物動詞及短語+that...(5)Itdoesn’tmatter(makesnodifferences,etc.)+連接代詞或連接副詞引導(dǎo)的主語從句,一,二,Itmakesnodifferencewhereweshallhavethemeeting.Itisapity(that)wehaven’tcontactedforages.很遺憾,我們幾年沒聯(lián)系了。Ithasnotbeendecidedwherethemeetingistobeheld.在哪里開會還沒決定。Itdoesn’tmatterwhethershewillcomeornot.她是否來這無關(guān)緊要。,一,二,2.it用作形式賓語如果賓語從句后還有賓語補足語,則必須用it作形式賓語,而將賓語從句后置,并且that不能省略。句型結(jié)構(gòu)為:(1)make/find/feel/consider/thinkit+adj./n.(賓語補足語)+that...(2)like/dislike/love/hate/appreciate+it+if/when...Ithinkitbestthatyoushouldstayhere.我認為你最好住這兒。Hehasn’tmadeitknownwhenheisgoingtogetmarried.他還沒宣布他何時結(jié)婚。Ihateitwhenpeoplelaughatthedisabled.我討厭別人嘲笑我的殘疾。,一,二,3.動詞doubt后接賓語從句時,通常要用whether(if)來引導(dǎo),而不用that,因為doubt表示“懷疑”,其意不肯定、不明確;但是如果它用于否定式,其后的賓語從句則通常用that來引導(dǎo),因為notdoubt表示“不懷疑”,其意是肯定的、明確的。Idoubtif/whetherhe’llcome.我拿不準他是否會來。Idon’tdoubtthathewillsucceed.我敢肯定他會成功。Doyoudoubtthathewillwin?你不相信他會贏嗎?,一,二,4.besure后的名詞性從句通常用that引導(dǎo),而benotsure后的名詞性從句則通常用whether/if來引導(dǎo):I’msurethatheishonest.我肯定他是誠實的。I’mnotsurewhether/ifheishonest.我不敢肯定他是否誠實。5.介詞后一般不接that引導(dǎo)的賓語從句,但介詞except及in除外。Hisreportiscorrectexceptthatsomedetailsareomitted.除了有些細節(jié)未提到之外,他的報道是正確的。Criticismandself-criticismisnecessaryinthatithelpsustocorrectourmistakes.批評和自我批評是必要的,因為它能幫助我們改正錯誤。,一,二,6.否定轉(zhuǎn)移在賓語從句中,主句的謂語動詞(詞組)是think、believe、suppose、imagine、consider、expect、guess、besure等,且主句的主語是第一人稱并為一般現(xiàn)在時,對賓語從句的否定一般轉(zhuǎn)移到主句上,表示說話者提出一種委婉的看法或主張。Idon’tbelieveI’vemetyoubefore.我認為我沒有見過你。Idon’tthinkyouwillbelate.我認為你不會遲到。,Ⅰ,Ⅱ,Ⅰ.完成句子(高考真題變式訓(xùn)練)1.Thebestmomentforthefootballstarwashescoredthewinninggoal.2.Somepeoplebelievehashappenedbeforeorishappeningnowwillrepeatitselfinthefuture.3.ExactlythepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround1565.4.Pickyourselfup.Courageisdoingyou’reafraidtodo.5.AsJohnLennononcesaid,lifeishappenstoyouwhileyouarebusymakingotherplans.,when,whatever,when,what,what,Ⅰ,Ⅱ,6.thedelayedflightwilltakeoffdependsmuchontheweather.7.Grandmapointedtothehospitalandsaid,“That’sIwasborn.”8.—IsittruethatMikerefusedanofferfromYaleUniversityyesterday?—Yeah,butIhavenoideahedidit;that’soneofhisfavouriteuniversities.9.Ithinkimpressesmeabouthispaintingisthecoloursheuses.10.Itisdifficultforustoimaginelifewaslikeforslavesintheancientworld.,When,where,why,what,what,Ⅰ,Ⅱ,Ⅱ.單句改錯1.Thequestionisiftheycancooperatewithus.2.Whatwecan’tgetseemsbetterthanthatwehave.3.Itwasamatterofwhoeverwouldtaketheposition.4.Marywroteanarticleonhowtheteamhadfailedtowinthegame.5.Pleaseremindmewherehesaidhewasgoing.Imaybeintimetoseehimoff.6.Hehasanideawhichhecanmakethescientificinstrumentinabetterway.,答案:if→whether,答案:that→what,答案:whoever→who,答案:how→why,答案:where→when,答案:which→that,Ⅰ,Ⅱ,7.Sheneverdoubtedforamomentwhethershewasright.8.Itremainstobeseenifthenewlyformedcommittee’spolicycanbeputintopractice.9.Fromspace,theearthlooksblue.Thisiswhyaboutseventy-onepercentofitssurfaceiscoveredbywater.10.ItiswellknowntotheworldisthatChinahasverytoptechnologyinspaceindustry.,答案:whether→that,答案:if→whether,答案:why→because,答案:It→What/去掉第二個is,