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1句型1.Asisknown(tousall),…=Itisknown(tousall)that…2.Itseemsthatsb./sth.…=sb./sth.seemsto…Itappears(tosb)that…=sb./sth.appearsto…3.It(so)happenedthatsb./sth.…=sb./sth.happenedto…4.Thereis/are….Thereseemstobe…Therehappenedtobe…Theremusthavebeen…Thereisgoingto/willbe…5.SthoccurredtosbIt(suddenly)occurredtosbthat…Itneveroccurredtosbthat…=Itdidn’toccurtosbthat…6.Itissaid/reportedthatsb./sth.…=sb/sthissaid/reportedtodo…Itisbelievedthatsb./sth.…=sb/sthisbelievedtodo……7.Itisnogood/usedoing…Theythink/consider/feelitnouse/gooddoingItislikelythatsb./sth.…=sb/sthislikelytodo…Itispossible/probablethatsb./sth.…8.Itishardtoimagine/say/believe…Itisnowonderthat…9.Ittakessb.sometimetodosth.Sb.takessometimetodosth.Sb.spendstime/moneydoingsth/onsth10.When/Wheneveritcomestosb./sth/doingsth,…11.It(still)remainsaquestionwhether…=Whether…remainsaquestion.Whether…remainstobeseen.Whether…(ornot)mainlydependson…12.Itmattersalot/littlewhether/who/how…Itdoesn’tmatterwhether/who/how…What(really)matters(tosb)is…13.Youmakeitaruletodo/that…Theymakeitpossible/clear(forsb)todo/that…Wefind/feel/think/considerit+adj./n.(forsb)todo/that…Wethink/consider/feelitagreathonortodosth14.keep/bearsthinmind→keep/bearinmindthat…15.takesth.forgrantedtakeitforgrantedthat…=Itistakenforgrantedthat…16.seetosth.seetoitthat…=makesurethat…17.Iwouldappreciateit(verymuch)ifyoucoulddosth.Iwouldbegrateful/thankful(tosb.)ifyoucoulddosth.18.Itwon’tbelongbefore…→Itwillbe…before…Itis/wasthefirst/secondtimethat…(现在完成时/过去完成时)19.Itisuptosb.todosth.220.Itwas+强调部分+that…Sb.do/does/did+v.21.not…until直到……才……→Itis/wasnotuntil…that…→Notuntil…22.Thefirsttime+从句…=When…forthefirsttime,…Everytime/Eachtime…=Whenever…Themoment/Theinstant/Directly…=Assoonas…一……就23.nosooner…than/hardly…whenIhadnosoonerleftthanshecalled.=NosoonerhadIleftthanshecalled.24.n./adj./adv.+as/though+S+V虽然……25.However/Nomatterhow+adj./adv.+S+V,…whatever/wherever/whenever/whichever/whoever/whomever/whether26.Themore…themore…27.Thereisno/notmuchpointindoing…Thereisnoneed(forsb)todo…Thereisnodoubtthat…Thereisnopossibilityofdoing/that…Thereisnodenyingthat…28.Chancesarethat…可能……29.since/nowthat既然30.Itis/hasbeensometimesince…(过去式)Itwassometimesince…(过去完成时)31.Thosewho…32.Heistheonlyoneofthestudentswhohaspassedtheexam.Heisoneofthestudentswhohavepassedtheexam.33.倒装①全部倒装②部分倒装Only+状语（短语/从句）34.祈使句，and/or+陈述句35.not…but…36.Wordcamethat…37.Thereasonwhy/for…was/isthat...38.Whatimpressed/struckusmostwasthat…Whatmatters(tosb.)isthat…39.Withthedevelopment/improvement/rise/increase/advance/helpof…40.Contrarytoone’swish/expectation/whatpeople(had)expected/thought41.cannot/never…too/can’t…enough---怎样也不过分----42.notnecessarily未必---43.take…intoconsideration/account3分类练习not…until…/Notuntil…/Itwasnotuntil…that…1.直到会议快要结束时他才露面。（showup）Notuntilthemeetingwasalmostoverdidheshowup.2.直到二十世纪初人们才学会怎样防止这种疾病的蔓延。(prevent)Notuntilthebeginningofthe20thcenturydidpeoplelearnhowtopreventthediseasefromspreading.3.直到那时他才意识到他的老师是非常善解人意的。（considerate）Notuntilthendidherealizethathisteacherwasveryconsiderate/thoughtful/understanding.4.可惜他们直到事故发生之后才采取措施防止它。（It）it’sapitythattheydidn’ttakeanymeasurestopreventtheaccidentuntilithappened.5.直到上周末收到你的来信时我们才如释负重。（relieve）Notuntilweheardfromyoulastweekwerewerelieved.Themore…themore…1．你的词汇量越大，你就感到用英语写作越容易。(feelit+adj.todo)Thelargervocabularyyouhave,theeasieryou’llfeelittowriteinEnglish.2．人们普遍认为，用脑越多，思维就越活跃。(itisgenerallybelievedthat)Itisgenerally/commonlybelievedthatthemoreoneuseshisbrain,themoreactivehismindwillbe.3．问题发现得越早，解决起来越容易。(solve)Theearliertheproblemisfound,themoreeasilyitcanbesolved.4．问题越难，我越有可能能够解决他们。(likely)Themoredifficulttheproblemsare,themorelikelyIamtobeabletosolvethem.5．我们学习得越多，将来就越能为我们国家工作的越好。(capable)Themorewelearn,thebetterwe’llbeabletoworkforourcountryinthefuture.6．你练习讲英语越多，就越对你有好处。(dosbgood)ThemoreyoupractisespeakingEnglish,themoregooditwilldoyou.7．我们经常讨论的一个问题是：是否钱越多越幸福。(discuss)Thetopicweoftendiscussiswhetherthemoremoneywehave,thehappierwewillbe.8．相对而言，孩子与父母交流越多，越不可能得抑郁症。(suffer)Relativelyspeaking,themorechildrencommunicatewiththeirparents,thelesslikelytheywillsufferfromdepression.Nomatterhow/however+adj./adv.+S+V1.不管这个新体系有多复杂，我们还是要用它。(complicated)Nomatterhowcomplicatedthenewsystemis,we’llhavetouseit.2．无论社会发展得多快，这个传统应该代代相传。(passon)Howeverfastthesocietydevelops,thistraditionshouldbepassedonfromgenerationtogeneration.43．无论他如何努力，他似乎永远学不好物理。（seem）Itseemsthathoweverhardheworks,hecanneverlearnphysicswell.4．不管我们有多忙，下星期我们一定会举行一次欢送会向那些退休工人们表示敬意。(inhonorof)Howeverbusyweare,wewillcertainlygiveafarewellpartyinhonorofthoseretiredworkersnextweek.5．不管天有多晚，他从不把今天必须做的事拖到明天。(putoff)Howeverlateitis,heneverputsoffwhatmustbedonetodaytilltomorrow.6.如果我们以一种强烈的意志工作，我们能够克服任何的困难，无论这个困难有多大。(overcome)Ifweworkwithastrongwill,wecanovercomeanydifficulty,howevergreatitis.Adj./adv./n./v.+as/though+S+V1.虽然他很聪明，但他不愿把全部时间用在学习上。(devote…to)Cleverasheis,heisnotwillingtodevoteallhistimetohisstudy.2.他很累，但他还是工作到深夜。(worklateinto…)Tiredashewas,hestillworkedlateintothemidnight.3.虽然他是个孩子，但对于这个世界他了解很多。Childasheis,heknowsalotabouttheworld.4.虽然我敬佩