Unit6语法专项课件(unless,assoonas,so…that…的用法)初中英语人教版八年级下册语法透析考点大观易错辨析通关训练考点大观易错辨析通关训练unless的常见用法unless引导条件状语从句,意为“除非,如果不”。unless=ifnot。You’llfailinEnglishunlessyouworkhard.We’llmissthebusunlesswewalkmorequickly.考点大观易错辨析通关训练assoonas的常见用法assoonas引导时间状语从句,意为“一……就……”。引导时间状语的连词包括when,while,until,till,before,after等。AssoonasIhavefinished,I’llgiveyouacall.I’llwritetoyouassoonasIgettoBeijing.考点大观易错辨析通关训练so…that…的常见用法1.so+形容词或副词+that...引导肯定的结果状语从句,意思是“如此……以致于……”。2.so+形容词或副词+that...引导否定的结果状语从句,意思是“如此……以致于不能……”。ThesunshineissonicethatIwanttogoswimming.so…that…ThecameraissoexpensivethatIcan'taffordit.考点大观易错辨析通关训练易错点1在时间状语从句和条件状语从句中,应该使用一般现在时代替一般将来时,简称“主将从现”原则。unless/assoonas引导状语从句的“主将从现”原则主祈从现主情从现考点大观易错辨析通关训练易错点1We’llbelateunlesswespeedup.I’llreturnthebookassoonasIfinishit.(主将从现)(从现)(主将)考点大观易错辨析通关训练易错点1Pleasecallmeassoonasyougetthere.(主祈从现)(从现)(主祈)考点大观易错辨析通关训练易错点1(主情从现)Youcan’tpasstheexamunlessyoustudyhard.(主情)(从现)考点大观易错辨析通关训练易错点2一般情况下,unless相当于if…not,可以互换,遵循“主将从现”原则。Iwon’tletyouinunlessyoushowmeyourpass.unless与if…notIwon’tletyouinifyoudon’tshowmeyourpass.考点大观易错辨析通关训练易错点3结构不一样sothat/so…that…的区别sothat后跟句子(目的状语从句/结果状语从句)so…that…的结构为:so+形容词或副词+that从句考点大观易错辨析通关训练易错点3sothat引导结果状语从句(因此、所以)或目的状语从句(以便、为了)。so…that…只可以引导结果状语从句(如此……以致于……)。表达含义不一样考点大观易错辨析通关训练易错点3Thespeakerspeaksloudlysothatallofuscanhearhim.Marialikesthisdresssothatshedecidestobuyitatonce.TheboyransofastthatIcouldn’tcatchhim.(目的状语从句)(结果状语从句)(结果状语从句)考点大观易错辨析通关训练解析【典例1】______you’vetastedthem,youcan’timaginehowdeliciousthedishesare.A.BecauseB.AlthoughC.WhenD.Unless考查连接词。句意:如果你不尝一尝,你就想象不到这些菜有多美味!because因为,although尽管,when当……时候,unless如果不,根据题意只能选unless。考点大观易错辨析通关训练解析【典例2】Assoonashereturnstohometown,he______hisgrandparents.A.visitB.visitsC.willvisitD.visited考查连接词assoonas的用法。句意:他一回到家乡,就去看望他爷爷奶奶了。assoonas引导的从句“主将从现”,主句选一般将来时willvisit。考点大观易错辨析通关训练解析【典例3】Davidwas_____careless_____hedidn’tfindthemistakesinhistestpaper.A.too;toB.so;thatC.such;thatD.so;/考查状语从句。句意:大卫如此粗心以致于他根本没有发现考试卷子中的错误。根据句意,前后两个句子为前因后果,故答案选B。