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单词讲解allowallowsbtodosth允许某人做某事sbbeallowedtodosth某人被允许做某事allowdoingsth允许做某事allowsbin/out允许某人进入/出去Teenagersshouldn’tbeallowedtosmoke.不应该允许青少年吸烟。辨析letsbdosth语气较弱,不能用于被动语态guess1v.Canyouguesshowoldheis?2n.Ifyoudon’tknowtheanswer,haveaguess!可数名词,猜想,猜测3主句含有:I/Weguess/think/believe/suppose…+从句时,要进行否定前移Iguesshecanswim.Idon’tguesshecanswim.Iguesshecanswim,can’the?deal1协议;交易Ididadealwithmyparentsonhousework.在家务上我与父母达成一项协议。2bigdeal重要的事3处理,dealwith,与疑问词how连用Howwillyoudealwiththehomework?communication1communicatewithsb与某人交流、沟通、联络2communicatetosb向某人报告、通知、传达Forbettercommunication,Ialsocommunicatewithhimbyphone.为了更好地沟通,我还和他电话交流。argue1通常与介词about和with连用,不及物动词arguewithsbaboutsth为某事与某人争辩2haveanargumentwithsbIhadanargumentwithhim.cloudLookatthosedarkclouds.It’sgoingtorain.看那些乌云,要下雨了。cloud,(像云的)尘土或烟雾cloudsofsmoke一团团的烟cloudy多云的acloudyskyolder/elder1older,指年龄较大、较老,也指较旧TomistwoyearsolderthanJohn.Thisbookisolderthanthatone.2elder,年长的,只用做定语,不用作表语Heismyeldersister.Weshouldrespectourelders.我们应该尊重长辈。instead1instead为副词,常放在句首或句尾Iwillgoinstead.2insteadof为介词短语,后面接名词、代词,介词短语或动名词形式Shewrotetohiminsteadofcallinghim.=Shedidn’tcallhim.Shewrotetohiminstead.nervous比较级:morenervous最高级:mostnervousbenervousof/about…对…感到紧张Theyarenervousof/abouttheirtest.offer1.offersbsth/offersthtosb向某人提供某物注:可以接受,也可以不接受2.offertodosth提议去做某事Iofferedherabook.我给了她一本书。Heofferedtohelpme.他向我提供帮助。辨析:provide强调为应付意外、突发事件、紧急情况等做好充足准备而“提供,供给”,多数情况是免费的。providesbwithsth为某人提供某物providesthforsbproper/explainHeneverexplainsanythingproperly.他从来不好好解释任何事情。explainoneself解释,交代清楚explainsthtosb向某人解释某事Aliceusuallyexplainsthenewwordstous.explanationn.解释,说明clear1.清楚易懂的;晴朗的Shespokeinaloudclearvoice.她说话声音既洪亮又清楚。2.清澈的;透明的clearwater清澈的水;clearglass透明的玻璃3.clearly清楚地,明白地辨析:clean干净的;清洁的;而clear表清澈cleanwater干净的水(强调没有尘污)clearwater清澈的水(强调清澈、透明)return1.return=comeback/gobackreturnto=gobackto=comebackto2.return,归还;还给returnsthtosb/returnsbsth归还某人某物Pleasereturnthemoneytoher.注:是非延续动词,不可以与表示一段时间的状语连用。compete1.competition竞赛,比赛2.competitor参赛选手3.enteracompetition参加比赛competewithsb…against……for…TeamsfrommanycountriescompeteintheWorldCup.很多国家的球队参加世界杯比赛。opinion1.同义词:idea;thought;viewWhat’syouropinionofmywork?对我的工作您有什么意见?2.inone’sopinion=Ithink…在某人看来Inmyopinion,youareright.我认为你是对的。insistonone’sopinion坚持某人的观点skill1.技艺,技巧Itneedsagreatskilltoflyaplane.开飞机需要很高的技巧。skillful孰练的扩展:Practicemakesperfect.Skillcomesfrompractice.quick1Haveaquicklook.Hetookouthisbookquickly.辨析:fast:形容词/副词,强调动作速度之快。quick:形容词,着重动作迅速发生或完成即刻行动,豪不耽误soon:强调时间,很快;马上,即不久以后将发生的某个动作或某种情况。I’llwritetoyouassoonaspossible.continue1持续,继续存在,接名词、动名词、不定式或名词性从句做宾语Howfardoestheroadcontinue?这条路有多长?continuedoingsth继续做原来的事=goondoingsthcontinuetodosth继续做某事(另一件事)AfterfinishingUnit3,let’scontinuetolearnUnit4.辨析:continue;goon;lastcontinue指进程在时间或空间上的延续,有时也可指短暂停止后继续进行。Hecontinuedtheworkforthreehours.goon:goontodosth=continuetodosthgoondoingsth=continuedoingsthlast:说明某一动作要延续一段时间。Shewon’tlastlonginthatjob.那份工作她做不了多久。compare1compare…with…将…与…比较compare…to…把…比作…Don’tcompareyourselfwithothers.不要与别人比较。Childrenarecomparedtonationalflowers.crazy1不理智的,疯狂的Youmustbecrazytowalkatnightwithnolights.2热衷的,狂热的Sheiscrazyaboutpopmusic.3crazilyadv.疯狂地,热衷地causeSmokingcancauselungcancer.吸烟能导致肺癌。Whatwasthecauseoftheaccident?Youhavenocausetocomplain.辨析:cause:引起某种结果的原因,后接ofreason:指决定做某事或采取某项行动的理由。excuse:辩解,借口perhapsmaybe=perhaps,位于句首或句末Maybe/Perhapsitwillraintomorrow.probably可能性大于maybe/perhaps.Hewillprobablycometomorrow.possibly较probably可能性小在肯定句里可能性很小,在否定、疑问句中与can/could连用,表示“无论如何不”。Couldhepossiblyagree?他难道会同意吗?人有了知识,就会具备各种分析能力,明辨是非的能力。所以我们要勤恳读书,广泛阅读,古人说“书中自有黄金屋。”通过阅读科技书籍,我们能丰富知识,培养逻辑思维能力;通过阅读文学作品,我们能提高文学鉴赏水平,培养文学情趣;通过阅读报刊,我们能增长见识,扩大自己的知识面。有许多书籍还能培养我们的道德情操,给我们巨大的精神力量,鼓舞我们前进。
本文标题:八年级下英语第4单元单词解析讲义
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