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必修3第3单元单词短语讲解1.Betbet[bet]n.赌,打赌1).打赌[(+on)]Let'shaveabetontheresultoftheelection.让我们就选举结果打个赌吧!2).赌金,赌注3).意见,猜测[+(that)]Mybetisthatshewon'trefusehisinvitation.我认为她不会拒绝他的邀请。Youshouldn'tmakebets=(makeabet打赌)againsthimv.赌,赌钱1）.Ibetyoudon'tknowwhowonthegamelastnight.我肯定你不知道昨晚谁赢了比赛。2）.Hebettwentydollarsonmetowinthefight.在口语中Ibet=I’msure我肯定Ibetitwillraintomorrow!我肯定明天会下雨！2.scenen.现场,场面,情景,景色,发生地点,[戏剧]一场,布景,道具布置3.tale故事；传说ATaleofTwoCities《双城记》4.permit/allowallow/permit这两个词的意义与用法相近。其句型为：1、allow/permitsth2、allow/permitsbtodosth3、allow/permitdoingsth如：①Thisplantallowsonehourforlunch.这家工厂允许一个小时的吃饭时间。②Hewouldnotpermitthewasteofasinglegrain.他不允许浪费一粒粮食。③Theydon'tallow/permitpeopletosmokeintheoffices．④Wedon'tallow/permitsmokingintheoffices．⑤Talkingloudlyisnotallowed/permittedinthelibrary.permission是permit的名词形式5.goahead本意“前进”goahead“随便，请自便”“继续”着手做某事；尽管去做；不要等（常用于祈使句）“MayIaskyouaquestion”“Yes，goahead．”“我可以问你一个问题吗”“可以，问吧！”“MayIstart”“Yes，goahead．”“我可以开始了吗”“行，开始吧。”总之，goahead是叫（或同意）别人去做他本来想做的事情。6.byaccident1）.byaccident偶然地，无意中。如：Ifounditbyaccident.我是无意中找到它的。ColumbusdiscoveredAmericabyaccident.哥伦布偶然发现了美洲大陆。注：byaccident主要用作状语，有时也用作表语。如：OurmeetinginPariswasbyaccident.我们在巴黎见面是个巧合。2）.byaccidentof因为……的机会，由于……的运气。如：Byaccidentofbirth,hewasrich.他有幸生在富裕家庭。3）.withoutaccident平安无事地。如：Thatnightpassedwithoutaccident.一夜平安无事。Theshiparrivedtherewithoutaccident.船平安到达那儿。bychance偶然,碰巧指几率很小byaccident偶然，有时被当作偶遇来解释如：Imethiminthestreetbyaccident,7.starestare是盯着的意思stareatsb为固定搭配盯着某人的意思glance是一瞥，随便的一看的意思glare是瞪眼怒目注视的意思gaze是凝视的意思8.Spotn.班点,雀斑，污点,地点,场所,现场vt.认出,发现aspotonone'sfame名誉上的污点ascenicspot风景胜地ahistoricspot古迹vicespots堕落场所themeetingonthespot现场会议aspotof（一点儿）=alittle=abitof后接“不可数名词”如：Let'shaveaspotoflunch.让我们吃点午饭吧。9.accountfor1）.总计,占据Twothingsaccountforitsoccurrence.发生这件事原因有两个。2）做出.解释；.说明Howdoyouaccountforit这你怎么解释呢Canyouaccountforalltheseabsences你能说明你缺席的原因吗。3.）导致，引起Badweatheraccountedforthelongdelay.长期的延缓是因为坏天气10.tobehonest也可以是honestly(speaking),......Tobehonest,Idon'tlikehimverymuch.Inthelongrun,itpaystobehonest.路遥知马力人久见人心behonestwith对...说老实话,同...规规矩矩来往11.Sillyadj.愚蠢的,无聊的12.tiny['taini]a.极小的,微小的形容词比较级:tinier最高级:tiniest名词:tininessThetinyseedplantedittenyearsbeforehadflowered.Wearelivinginabigworldinwhichapersonisastinyasaseed.Thereisnoneedforyoutospendsomuchtimeonsuchatinymatter.13.Issuen.结果,结局；发行(物);一次发行量;(报刊)期号；问题;争端;论点v．发行(钞票等),发布(命令),出版(书等)14.Faken.假货,欺骗，赝品，冒牌货;仿造品;骗子a.假的v.假造,伪造;冒充，假装;假装...的样子[过去式faked过去分词faked现在分词faking]1.伪造;捏造;冒充Hefakedmysignaturetogetmoneyfrommybank.2.假装;假装...的样子Shefakedillnesssoasnottogotoschool.n.[C]1.冒牌货;仿造品Theexpertsdiscoveredseveralfakesintheartcollection.2.冒充者;骗子a.1.假的;冒充的[B]Thisisafakepicture.这是幅假画。15.rag1旧布如:apieceofrag2破旧衣服inrags,表示衣衫褴褛3质量低劣的报纸losehisrag是失去理智的意思16.Indeedadv.(1)的确是；实在是Iwasindeedverygladtohearthenews.(2)（表示惊奇、反语等）真的，的确‘Whoisthiswoman’‘Whoisshe,indeed!’(Iwonderatyourasking.)(3)（用于very+形容词或副词后，加强语气）Thankyouverymuchindeed.17.evenif=eventhough是“即使”getintotrouble“陷入困境，惹麻烦”getintotrouble(with)的同义短语getintotrouble(with)＝putsb.intotrouble=beintrouble(with)=getinsour=inhotwater=inthesoup18.decade十,十个一组；十年,十年间19.Contestv.竞赛,争辩,争取;争夺vi.争夺；竞争；争论(against,with)n.竞赛,争论speechcontest演讲竞赛Dearsir,LastyearIbuyarefrigeratorinyourstoreonChangAnroad.Wealllikeshapeoftherefrigerator.AndrecentlyIfindsomethingiswrongwithit.Itbeginstomakenoisewhenitturnedon.Atfirstitislowbutgraduallyitbecomelouderandlouder.Tomakethematterworse,itevenstopsworkingsometimes.Weallfeeldisappointing.Iamwritingyoutoaskforhelp.WouldyoupleasesendapeopletorepairitIwillathomethisweekend.Pleasecallmebeforeyoucometohere.Mytelephonenumberis.Thanksyouverymuch.CustomerDoyouwanttoseetheeffectsofglobalwarmingThenheadnorth.WillStegerisgoingtotakeallofusthere.Steger,64,thefirstpersontomakeadogsledtriptotheNorthPole,isaveryfamousandadmiredpolarexplorer.He’sathomeinfrozenpartsoftheworld,wherefewhumanseverstepon.Stegerisalsoadevotedenvironmentalistwhowasearlytoringthealarmbellonglobalwarming.HesawitseffectsfirsthandinfrequentpolarexpeditionstotheArcticandAntarctica.NowStegerisabouttoleadateamofsixyoungadventurersona1,400-mile,60-day-longdogsledtripacrossEllesmereIsland,intheCanadianArctic.Theseaiceinthatregionshouldstillbefrozen.“Wewanttotakeouraudiencetothefrontlinesofglobalwarming,”saysSteger.Theteamwillbeuploadingvideos,storiesandphotostothewebsiteglobalwarming101.comastheymarchalong,allowingarmchairadventurersandkidsinclassroomstofollowtheirprogressdaytoday.“Wecanactuallybringtheaudienceupthere,”Stegersays.Steger’steamwillincludesomealready-famousyoungexplorers.SamBranson,the22-year-oldsonofBritishairlinetycoon(大亨)RichardBranson,isanexperiencedArctictraveler.Alsoonthejourneywillbe27-year-oldNorwegianSigridEkran.Lastyear,EkranbecameonlythesecondwomaninhistorytowinRookie(新秀)oftheYearfortheIditarodSledDogRace.Whattheywillseemaybeverysurprising.EvenStegerdoesn’tknowexactlywhattoexpect.ClimatechangehasalreadyreshapedthegeographyoftheArctic.“Withinadecadeorless,it’sgoingtobeimpossibletoreachtheNorthPolebydogteamwithoutflotation(漂浮),”saysSteger.Climatechangeishappening,butpeopl