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that都可以引导什么从句？请举例说明最好有例句谢谢答：1、用作关系代词，引导定语从句TheonlythingthatIcandoistohavearest.我唯一能做的事就是休息。2、用作关联词，引导名词性从句Thattheearthturnsaroundthesunisknowntoall.地球围着太阳转这一点是众所周知的。（引导主语从句）ItsohappensthatIknowtheman.碰巧我认识那人。（主语从句）Iwillseetoitthateverythingisready.我会注意把一切准备妥当的。(宾语从句)Thetroubleisthatweareshortofmoney.困难就在于我们缺钱。（表语从句）Thereisnodoubtthatheisthebestchoiceforthisposition.无疑，他是这一职位的最佳人选。（同位语从句）3、构成短语，引导状语从句BringitnearersothatImayseeitbetter.拿近一点，好让我看清楚些。(sothat引导目的状语从句)Shegotupearly,sothatshecaughttheearlybus.她起的早，所以赶上了早班车。(sothat引导结果状语从句)Inorderthateverybodyshouldhearhim,hespokeloudly.他大声说话，为了使大家都能听得见。（inorderthat引导目的状语从句）Nowthattheyhavetakenmattersintotheirhandsthepaceofeventshasquickened.他们既然已着手自己来处理问题，事态的进展也就加快了。（nowthat引导原因状语从句）That从句。什么情况不能用that？这种情况多见于定语从句，现将重点提供如下：关系代词that的用法首先特别注意，that只能用在限定性定语从句中，在非限定性定语从句中永远不能选用that,另外介词后边也不可用that,而是跟which.在限定性定语从句中，which和that在代替物的时候，一般可以通用。Themoneythat(which)isinthewalletismine.有些情况下，只宜用that,而不宜用whichi.先行词是最高级形容词或者它前面有最高级形容词的时候Thisisthebestthathasbeenusedagainstpollution.Englishisthemostdifficultsubjectthatyouwilllearnduringtheseyears.ii.先行词是序数词，或者它前面有一个序数词的时候Heisthelastperson(that)Iwanttosee.ItisthefirstAmericanmovieofthiskindthatI’veeverseen.iii.主句已有疑问词who或者which的时候Whichisthebikethatyoulost?iv.先行词既有人又有物，宜用thatDoyouknowthethingsandpersonsthattheyaretalkingabout?Thebikeanditsriderthathadrunoveranoldmanweretakentothepolicestation.v.先行词是all,much,little,something,everything,anything,nothing,none,theone等不定代词时Youshouldhandinallthatyouhave.Wehaven’tgotmuchthatwecanofferyou.Imeantheonethatyoutalkedaboutjustnow.vi.先行词前面Only,any,few,little,no,all,oneof,thesame,thevery等词修饰的时候Theonlythingthatwecandoistogiveyousomemoney.LiMingistheonlyonethatwantstobeateacher.LiMingisoneofthestudentsthatwanttobeteachersinourclass.vii.有两个定语从句，其中一个关系代词已用which,另外一个宜用that.Edisonbuiltupafactorywhichproducedthingsthathadneverbeenseenbefore.that一、关系代词who和that的选择关系代词who和that都可以指人，有时使用场合有区别。（一）关系代词who的使用场合1．who可以代表人、人格化了的动物、神话故事中的人物或有生命的事物。如：1）Thedogwhoisbarkingisourpet．2）Thosewhowanttogopleasesigntheirnameshere．2．在从句中，作主语倾向于用who。如：1）Thegirlwhodancesbeautifullygaveusaperformancethatday．2）Doyouknowthecomradewhospokejustnow？3．当先行词泛指代词he，they或指示代词those等时，常用who。如：1）Hewhodoesnoworkgetsnopay．2）Wearebadlyinneedofthosewhocanworkinrealearnest．4．先行词前出现不定冠词时，多用who。如：1）Ihavefoundamanwhocandothiswork．2）Heisamanwhoshouldlearnfromothers．5．在therebe句型中，既作主语又表示人时多用who，或省略。如：1）Thereissomeoneoutsidetheofficewhowantstoseeyou．2）There'samanwholivesinthatvillage．6．不定代词one，ones，anyone等作先行词时，多用who。如：Onewhoworkswithoutcomplainiswelcomehere．7．定语从句和先行词分隔，用that可能引起歧义时，应用who。如：Isawamaninthestreetwhowassurroundedbymanypeople．这个句子如用that，就可能被人认为是定语从句修饰street。8．在非限制性定语从句中，一般要用who，不用that。如：Thesoldiers，whomayhavefeltsorryfortheboy，hadhimstandwithhisbacktohisfather．9．有两个定语从句出现在一个句子中，第一个关系代词用that的话，第二个就用who。如：ThemanthatIlikeistheonewhoisbothcompetentanddiligent．但在平行结构中，应根据平行结构的原则重复同一个关系代词。如：ImetaGreekwhotravelledalotintheworld，butwhoknewverylittleabouthisowncountry．注意：关系代词前如有介词或在非限制性定语从句中作宾语，关系代词要用whom。如：1）Inthedarkstreet，therewasn'tasinglepersontowhomshecouldturnforhelp．2）Thebraveman，whomthetigerwasshotby，isagoodhunter．（二）关系代词that的使用场合1．在以疑问词who开始的句子中，避免两个who重复，用that。如：Whoisthemanthatisshoutingthere？2．关系代词在从句中作表语时，多用that。如：Sheisnotthegirlthatshewasthreeyearsago．3．先行词被形容词最高级、only等修饰时，应用that。如：TangGuoqianghasbecomeoneofthebestactorsthatappearonChinesescreens．4．先行词人和物两者都有时，要用that。如：Hetalkedabouttheteachersandschoolsthathehadvisited．5．关系代词与thesame（指同一人）连用时，只能用that。如：ThisisthesamepersonthatImetyesterday．6．一个句子中有两个定语从句时，如第一个从句中已用who，第二个从句中宜用that。如：Themanwhoisattableishisbrotherthathasbeenservinginthearmy．二、关系代词that和which的选择关系代词that和which都可以指物，在很多场合两者都通用。但有时that和which的使用场合并不相同。（一）关系代词which的使用场合1．如果先行词是that，关系代词应用which。如：Whatwasthatwhichyousaidabouthim？2．先行词和定语从句之间被其它较长的成分分隔，用which较好。如：Ihavesomeinterestsoutsidemyprofessionalworkwhichgivesmegreatpleasure．3．一个句子中如有两个定语从句，第一个定语从句用了关系代词that，第二个从句宜用which。如：Thisisthebookthatyouboughtwhichyouhavelost．但在平行结构中，应重复同一个关系代词。如：Ihaveahousewhichislocatedonthehillside，whichfacesthesouth．4．非限制性定语从句中关系代词一般要用which。如：Iwillbuyabook，whichtellsabouttheuseofEnglishidioms．5．相当于并列句和状语从句的定语从句，用which引导。如：1）Wewenttothenearestportwhichwereachedsafely．2）Hepersistedinhavingabicyclewhichheactuallyhadnousefor．6．关系代词前如有介词，关系代词要用which。如：Theyhadameetingatwhichhespokeonthecurrenteconomicsituation．如把介词移至句末，可用that（或省略）。如：Thisisthebook（that）shewaslookingfor．（二）关系代词that的使用场合1．一般说来，先行词是all，anything，everything，nothing，much，little，few等，关系代词应用that。如：1）That'sall（that）Iknow．2）Everythingthatcanbedoneisdone．2．先行词之前有all，any，every，no，little，much，only，very等修饰时，关系代词应用that。如：1）He'llreadallthebooksthataresoldhere．2）Askanyquestions（that）youdon'tunderstand．3．先行词前有序数词或形容词最高级修饰时，关系代词应用that。如：1）ThisisthemostwonderfulfilmthatIhaveeverseen．2）Thefirstthingthatyoushoulddoistoworkoutaplan．4．当先行词是tobe的表语，或关系代词本身是从句的表语时，关系代词应用that。如：1）It'sasongthatisverypopular．2）Myhometownisnolongertheplacethatitusedtobe．5．当主句以Therebe开头时，关系代词应用that。如：Thereisaseatinthecornerthatisstil