导入：英语句子一般结构：1）主语+谓语(vt.)+宾语(+补语+状语)2）主语+系动词+表语3）主语+谓语（vi.）宾语和表语有什么不同?一个名词跟在及物动词后是宾语,跟在系动词后是表语.主题：名词性从句：名词性从句是由连接词whether,if,that和各种疑问代词或副词what,who,which,where,when,how,why等充当连接词所引导的从句,其功能同名词一样。包括宾从，表从，主从和同位语从句。四种从句的共性:1.引导词基本一样,,如that,whether,when,where,how.但asif引导的是表语从句.2.陈述句语序.3.疑问代词,疑问副词保留自身的疑问含义,如疑问代词who在宾语从句中仍译为是谁,疑问副词where译为哪里.4.which表示选择,that无意义5.what引导名词性从句时在从句中充当句子成分,如主语,宾语,表语,而that在句子中只起连接作用。例如：(1)Whatyousaidyesterdayisright.(2)Thatsheisstillaliveisapuzzle.练习：用That/What填空：1.____sheistovisitthelonelyislandsurprisesus.2.____sheistodonextweeksurprisesus.一．宾语从句就是在复合句中作宾语的名词性从句,通常放在主句谓语动词(及物动词)或介词之后。如：Idon’trememberwhenwearrived.宾语从句特点：1．有引导词that，whether,if,who,whose,what,which,when,where,how,why.在宾语从句中的that可以省略，第2次出现就不能省。如：Hesaid(that)thetextwasveryimportantandthatweshouldlearnitbyheart.2.在及物动词或介词之后。3．陈述句语序.如:Thephotographswillshowyouwhatourvillagelookslike.4．引导词that与what的区别。what引导宾语从句在从句中充当句子成分,如主语,宾语,表语,而that在句子中只起连接作用,无意义。例如：(1)Iknowthathewillcome.(2)Idon’tknowwhathewillchoose.5.whether与if同用,但介词后用whether.Italldepends(on)whethertheywillsupportus.Lilywantedtoknowif/whetherhergrandmalikedthehandbag.二.表语从句在从句中作表语的从句称作表语从句。表语从句特点：1．有引导词that，whether,asif,who,what,which,when,where,how,why.在表语从句中的that不能省。2.放在系动词之后,表示状态持续，变化的系动词有be,stay,keep,remain,get,become,seem,go,感官动词也属系动词如look,sound,taste,smell,feel.等.3．陈述句语序.4．引导词that与what的区别。what引导表语从句在从句中充当句子成分,如主语,宾语,表语,而that在句子中只起连接作用,5.表语从句可用whether引导,不用if.6.有用结构：1）This/That/Itisbecause…2）Thereason…isthat…练一练：1）．Hewaslateforschool.Thatwas______hegotuplate2）．Thereasonwhyhewaslateforschoolis____hegotuplate.3）.Chinaisn’t____sheusedtobe4）.Thequestionis_____youdidn’tdothatintime.because，that，what，that爱心用心专心1三.主语从句在从句中作主语的从句称作主语从句。主语从句特点：1．有引导词that，whether,who,what,which,when,where,how,why.一般情况下主语从句中的that不省略.2.为了避免头重脚轻,往往用it代替主语从句,放在句首,如★Itis+名词/形容词/过去分词+主语从句（有用句型:）Itisreported/said/stillaquestion/that…(P306)如:Itisstillaquestionwhethershewillcomeornot.Itisstrangethatyoushouldlikehim.Itissaid/reportedthatheisthewinner.3．陈述句语序.4．引导词that与what的区别。what引导主语从句在从句中充当句子成分,如主语,宾语,表语,而that在句子中只起连接作用5.whether引导的主语从句可以放在句首,if不能.6.注意：★whoever(凡是…的人)引导主从和状从,who(谁)引导主从★nomatterwho(无论是谁)只引导状从(=whoever)1）.____willgocomeshereat7.2）____willgoisn’tknown.3）.____breaksthelawmustbepunished.4）.____breaksthelaw,hemustbepunished.5）.It______thatwhatyousaidisnotsoreasonable.(必须指出)mustbepointedout6）.It_____thatBushiselectedPresident.结果是turnedout7）.It_____whetherTomorMaryteachesusEnglish.(无区别)makesnodifference1.Whoever;2.Who;3.whoever;4.whoever/Nomatterwho四.同位语从句一般放在名词fac...
