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1、Grammar名词性从句宾语从句名词性从句相当于名词,可分别作主句的主语、表语、宾语和同位语。因此,名词性从句可分为主语从句、表语从句、宾语从句和同位语从句。1、宾语从句宾语从句在复合句中起宾语作用,可以作动词的宾语,也可以作介词的宾语。引导宾语从句词有连词that,if,whether;连接代词who,whose,what,which;连接副词when,where,how,why等。TheObjectClausee.g.Ithink(that)womencanreachveryhighachievementsinmanyfie
2、ldsofscience.2)Iwonderwhether/ifsherememberedhowmanybabiesshehaddelivered.3)Doyouknowwho/whomJackwasspeakingto?4)Heaskedwhosecaritwas.5)Payattentiontowhatthedoctorsaid.6)Pleasetellmewhentheearthquaketookplace.7)WillyoutellmehowIcankeepfitandhealthy?TheObjectClause做动词
3、的宾语(1)大部分宾语从句直接跟在动词后:e.g.Hedoesn'tknowwherethepostofficeis.(2)有些宾语从句前要有间接宾语:e.g.HetoldmewhatIshouldread.(3)如果宾语从句后面有宾语补足语,要使用形式宾语it而将从句放到补足语后面;e.g.Ithoughtitstrangethathefailedtocallme.我觉得奇怪,他没给我打电话。(4)在think,believe,suppose,expect等动词之后的宾语从句中,如果从句谓语是否定含义,则不用否定形式,而将主句
4、谓语动词think等变为否定形式;e.g.Idon’tthinkyouareright.我想你是不对的。否定的转移1.主语为第一人称2.时态为现在时态(5)在think,believe,imagine,suppose,guess,hope等动词以及I’mafraid等后,可用so代替一个肯定的宾语从句,还可用not代替一个否定的宾语从句:e.g.一Doyoubelieveitwillclearup?你认为天气会转晴吗?一Ibelieveso.我认为会这样。Idon'tbelieveso.(或Ibelievenot.)我认为不会这
5、样。(1)一般情况下,宾语从句直接跟在谓语后;e.g.Didshesayanythingabouthowweshoulddothework?(2)that引导的宾语从句只有在except,in,but,besides等少数介词后偶尔可能用到;e.g.Yourarticleisallrightexceptthatitistoolong.(3)有时在介词和其宾语从句的中间加形式宾语it;e.g.I’llseetoitthateverythingisready.做介词的宾语3.what,which,who,whom,whose引导的表
6、语从句连接代词what,which,who,whom,whose除在句子中起连接作用外,还可在从句中从当主语、表语、定语,且各有各的词义。e.g.Tomisnolongerwhatheusedtobe.Thequestioniswhichofusshouldcomefirst.Theproblemiswhoisreallyfitforthehardjob.Theimportantthingiswhosenameshouldbeputonthetopofthelist.Correctornot?Iknowheliveshere.I
7、knowhelivedheretenyearsago.Ihaveheardthathewillcometomorrow.Isawsheistalkingwithhermother.Heaskedwhetherhisfatherwillcomeback.Hesaidthathehasseenit.Theteachersaidthattheearthtravelsaroundthesun.waswouldhadPayattention:如果主句是过去的时态,那么从句的时态一定要用相对应的过去的某种时态。当从句是客观真理,定义、公理、
8、定理时用一般现在时。Correctornot?IIHisbrotheraskswhenhewillgotothelibrary.Hisbrotheraskswhenwillhegotothelibrary.Canyoutellmewhoarewegoingtom