CONTENTS目錄Task1:GeneralEnglishTask2:EnglishforSpecialPurposesTask3:GrammarTask4:DrillsUnit17Task1:GeneralEnglishSmokingZhangHuaistalkingwithLiLei,hercousin,aboutgivingupsmoking.GiveupSmokingTask1:GeneralEnglishZhangHua: LiLei: ZhangHua: LiLei: ZhangHua: Hey,areyoufeelingOKtoday?Oh,Ihavebeencoughingthesedays.What’sthematter?Haveyouseenadoctor?Yes.AndthedoctorsaidthatIsmokedtoomuchandhissuggestionwasthatIshouldgiveupsmoking.Ican’tagreemore.①Youdosmoketoomuch.You’dbetteracceptthedoctor’sadvicerightnow.Auntworriesaboutyou.Task1:GeneralEnglishLiLei: ZhangHua: LiLei: ZhangHua: LiLei: Iknow,butitisreallytoodifficultforme.Justmanagetodoit!It’sreallyimportantforyou!Youdon’thaveanyotherchoice.Youareright!I’lltrymybest!Wishyouagreatsuccess!Thanks.Iwill!Task1:GeneralEnglishSmokingandHealthSince1939②,scientificstudieshaveshowntimeandagainthatsmokingdoesgreatharmtoone’shealthandthatitwillshortenone’slife.Task1:GeneralEnglishCigarettesmokingisbelievedtobeanimportantcauseinthedevelopmentoflungcancerandthroatcancerandisbelievedtohavemuchtodowithsomeotherkindsofcancers.Cigarettesmokerssufferfromtheillnessoftheheartmoreoftenthanthosewhodon’tsmoke.So,giveupsmoking.Andifyoudon’tsmoke—don’tstart!Task1:GeneralEnglishNewWordsandExpressionscough

/k.f/

n.咳嗽success

/s.k'ses/

n.成功，勝利scientific

/'sa..n't.f.k/

adj.科學(xué)的study

/'st.di/

n.研究harm

/hɑ.m/

v.傷害，損害shorten

/'...tn/

v.縮短，（使）變短cigarette

/'s.ɡ.'ret/

n.香煙，紙煙Task1:GeneralEnglishNewWordsandExpressionslung

/l../

n.肺，呼吸器，肺臟cancer

/'k.ns.(r)/

n.癌，毒癌throat

/θr..t/

n.咽喉，喉嚨suffer

/'s.f.(r)/

v.遭受，經(jīng)歷timeandagain反復(fù)地sufferfrom忍受，遭受Task2:EnglishforSpecialPurposesCADandCAMCADreferstocomputer-aideddesign,whileCAMstandsforcomputer-aidedmanufacture.Theyareimportanttoolsforproductdesigningandmanufacturingpurposesandusedinalmosteverymanufacturingprocesstoday.Task2:EnglishforSpecialPurposesCADinvolvestheuseofcomputersfortransformingtheelementaryideasofproductintoadetailedengineeringdesign.EngineersuseCADtomakeadatamodelthatcontainsallthedimensionaldataoftheproduct.③Thedesigncanbeexaminedvirtuallyfromanyanglebeforemanufacturingtheproduct.Task2:EnglishforSpecialPurposesWhenthedesigniscompleteinCAD,thenitcanbeloadedintoCAM.CAMincludesabroadrangeofprocessestobecarriedoutautomaticallysuchascutting,turningandmilling.ItusestheCADmodelstogeneratethetoolpathsthatdrivemachinetoolstoturndesignsintophysicalparts.④Italsoallowsengineerstoselecttools,materials,andothervariablesforthemachining.Task2:EnglishforSpecialPurposesAutoCAD3DmodellingandthemoldandtoolingexampleofCAM.Task2:EnglishforSpecialPurposesNewWordsandExpressionstransform

/tr.ns.f..m/

v.轉(zhuǎn)化data

/.de.t./

n.數(shù)據(jù)dimensional

/da..men..nl/

adj.

……維的virtually

/.v..t.u.li/

adv.模擬，虛擬，以模擬現(xiàn)實技術(shù)complete

/k.m.pli.t/

adj.完成的load

/l..d/

v.加載Task2:EnglishforSpecialPurposesNewWordsandExpressionsbroad

/br..d/

adj.寬的，遼闊的generate

/.d.en.re.t/

v.使形成toolpath

/.tu.lpɑ.θ/

n.刀具路徑physical

/.f.z.kl/

adj.有形的，實物的select

/s..lekt/

v.選擇variable

/.ve.ri.bl/

n.變量computer-aideddesign計算機輔助設(shè)計Task2:EnglishforSpecialPurposesNewWordsandExpressionscomputer-aidedmanufacture計算機輔助制造referto描述，涉及standfor是……意思，代表transform...into使改變形態(tài)datamodel數(shù)據(jù)模型carryout實施，執(zhí)行Task2:EnglishforSpecialPurposesNotes①Ican’tagreemore.我完全同意。②since1939...自1939年以來……

遇到since短語所構(gòu)成的時間狀語，主句一般都要用完成時態(tài)。Task2:EnglishforSpecialPurposesNotes③EngineersuseCADtomakeadatamodelthatcontainsallthedimensionaldataoftheproduct.

工程師使用CAD制作包含產(chǎn)品所有尺寸數(shù)據(jù)的數(shù)據(jù)模型。④ItusestheCADmodelstogeneratethetoolpathsthatdrivemachinetoolstoturndesignsintophysicalparts.

它使用CAD模型生成刀具路徑，驅(qū)動機床將設(shè)計轉(zhuǎn)化為有形的零件。Task3:Gramma名詞性從句（三）——主語從句和同位語從句1.主語從句（1）主語從句的引導(dǎo)詞主語從句通常由that、whether、連接代詞、連接副詞或關(guān)系代詞引導(dǎo)?！魌hat引導(dǎo)。Thatheisstillaliveisawonder.他還活著，真是奇跡?！魒hether引導(dǎo)。Whetheritwilldousharmremainstobeseen.是否對我們有害還要再看一看。Task3:Gramma◆連接代詞引導(dǎo)。Whoevercomesinfirstwillreceiveaprize.無論誰先到都可以得獎?！暨B接副詞引導(dǎo)。Whenwearrivedoesn’tmatter.我們什么時候到并不重要?！絷P(guān)系代詞what引導(dǎo)。Whatweneedismoney.我們需要的是錢。名詞性從句（三）——主語從句和同位語從句Task3:Gramma（2）主語從句與形式主語it有時為了考慮句子前后平衡、避免“頭重腳輕”，通常在主語從句處使用形式主語it，而將真正的主語從句移至句末，這分四種情況?！粢赃B詞that引導(dǎo)的主語從句，常用形式主語it代替。Itisapitythathedidn’tcome.很遺憾他沒來。◆以連接副詞引導(dǎo)的主語從句，可以使用形式主語it代替。Itremainstobeseenwhetheritwilldousharmorgood.它對我們是利是害，還得再看看再說。名詞性從句（三）——主語從句和同位語從句Task3:Gramma◆對關(guān)系代詞what引導(dǎo)的主語從句，通常直接將主語從句放在句首，有時也可用形式主語it。Itisclearenoughwhathemeant.他是什么意思很清楚。◆如果句子是疑問句，則必須用帶形式主語it的結(jié)構(gòu)。Isittruethatheisthegirl’sfather?他是那女孩的父親，是真的嗎？名詞性從句（三）——主語從句和同位語從句Task3:Gramma（3）連詞that的省略問題引導(dǎo)主語從句的連詞that有時可省，有時不能省。其原則是:若that引導(dǎo)的主語從句直接位于句首，則that不能省略；若that引導(dǎo)的主語從句位于句末，而在句首使用了形式主語it，則that可以省略。例如:Thatyoudidn’tgotothetalkwasapity.很遺憾你沒去聽報告。(that不可省略)Itwasapity(that)youdidn’tgotothetalk.很遺憾你沒去聽報告。(that可省略)名詞性從句（三）——主語從句和同位語從句Task3:Gramma2.同位語從句（1）同位語從句用來說明前面名詞的實際內(nèi)容。同位語從句一般由that引導(dǎo)。同位語從句經(jīng)常與以下名詞連用:fact,idea,chance,hope,belief,thought,evidence,conclusion,discovery,truth,knowledge,opinion,news。例如:Wehavecometotheconclusionthatthereisnooneintheroom.我們已經(jīng)得出結(jié)論，房中無人。名詞性從句（三）——主語從句和同位語從句Task3:Gramma（2）that引導(dǎo)的同位語從句與定語從句的區(qū)別。that引導(dǎo)的同位語從句和定語從句有差別。在同位語從句中，引導(dǎo)詞that只起引導(dǎo)作用，不作句子成分。在以上例句中皆是如此。但在定語從句中，that是關(guān)系代詞，除起引導(dǎo)作用外，還要作定語從句中的主語或賓語（作賓語的that?？墒÷裕?。例如:Thisistheonlybookthatisinteresting.這是唯一一本有趣的書。Thankyouforthehelp(that)youhavegivenus.感謝你給予我們的幫助。名詞性從句（三）——主語從句和同位語從句Task4:Drills1.OralpracticeWorkinpairsandexchangetheinformationaboutdisadvantagesofsmoking.Task4:Drills2.Fillintheblankswiththeproperconjunctionsgiven.when

whether

who

which

why（1）

hewillcomeornothasn’tbeendecided.（2）

willtakechargeofthetaskhasn