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1、高中英语重要语法及考点归纳三大从句常考点1.只用whether不用if的情况①引导主语从句且放于句首Whetherhewillbeelectedmonitorofourclassisnotknownyet.②引导同位语从句，表语从句时Theproblemiswhethershewouldlovehimandwaswillingtomarryhim③介词之后Itdependsonwhetherhewillimmediatelyrecoveredandgobacktowork.④不定式之前Hewonderedwhethertobeallowedt
2、ogothere.注意:Heaskedwhether/ifshewouldlovehimandwaswillingtomarryhimIfyougotheretomorrow,sowillI.Hetolduswhether____apicnicwasstillunderdiscussion.A.tohaveBhavingChaveDhad2.evenif=eventhough即使;asif=asthough似乎,好像；evenso;即使如此;ifso如果这样ifanything总之，事实上，更可能的是ifever曾经有的话，ifany如果有一
3、些ifpossible如有可能1).Hewillnottellthesecret,eventhoughheknowsit.2).Muchofthepowerofthetradeunionshasbeenweak____,theirpoliticalinfluenceshouldbeverygreat.A.AsaresultB.AsusualC.EvensoD.Sofar3).Doyouenjoyplayingbasketball?__,youhavelotsofcompany.A.EvensoB.IfsoC.HoweverD.Otherwis
4、e（CB）3.until/unless引导从句的区别until….直到……才(强调时间)；（=tothetimeof/when）Thebabydidnotstopcryinguntilhewasfed.Untilhereturns,nothingcanbedone.unless除非…否则（强调条件）(=if的否定句,即if…not…)Accordingtoourschoolrules,noneisallowedtoaskforleaveunlessheorshehasadoctor’snote.Allthedishesinthismenu,u
5、nlessotherwisestated,willservetwotothreepeople.4、whatever;however;wherever;whoever;……无论….注意：语序（类似于感叹句，相关内容须提前）；Iworkhard.--无论我工作多努力_____________________________与nomatter+疑问词的替换:________语从句可互换使用；__________从句中只能用_________区分whatever&however:1)._________greatdifficultywehave,we
6、willnotgiveintothefate.2)._________greatthedifficultyis,……3).__________muchdifficultywehave,……4).Theoldtowermustbesaver,__________thecost.5)._______________,Ihavetoputitawayandfocusmyattentiononstudythisweek.A.Howeverthestoryisamusing;B.NomatteramusingstoryisC.Nomatterhowam
7、usingthestoryisD.Howeveristhestoryamusing（HoweverhardIwork.状语从句；名词性从句whatever这类的；Whatever:However;However;whatever;C）5.though做副词单独使用,“然而”，用在句中或句末，前有逗号，相当于however，3Ihavehadabitofheadache.It’snothingmuch,though.=However,it’snothingmuch.though做连词引导从句,“尽管，虽然”Although/Though/Whi
8、leshewasaloneinthereadingroom,Katefeltanythingbutlonely.=Alone/Thoughasshewasinthe
