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Discoveringusefulstructuresrollercoaster,whichever,whatever,free-fall,wherever,southeastern,indoor,outdoor,craftsmen,old-fashioned,steam-engine,world-famous,horsebackReadthecompoundwordsfromthereadingpassage.英语构词法(WordFormation)•英语一些常用的构词法:•1.合成(Compounding)2.转化(Conversion)3.派生(Derivation)一合成法(Compounding)由两个或更多的词合成一个词,有的用连字符号”-”连接,有的直接连写在一起.wood(木)＋cut(刻)＝woodcut(木刻)man(人)＋kind(种类)＝mankind(人类)air(空气，空中)＋sick(恶心的，晕的)＝airsick(晕机的)merry-go-round旋转木马up-to-date最新的life-size与真人一般大1.合成名词(1)n+nairconditioner空调bloodpressure血压incometax所得税creditcard信用卡(2)adj+ncentralbank中央银行fastfood快餐Compoundsolarsystem太阳系remotecontrol遥控(3)v-ing+nwashingmachine洗衣机drivinglicense驾驶执照(4)其他方式by-product副产品editor-in-chief主编2.合成形容词(1)过去分词或带ed词尾的词构成。absent-minded心不在焉的grey-haired头发灰白的(2)动词的ing或另一词构成long-suffering长期受苦的far-reaching深远的(影响)3.合成动词及合成副词water-ski滑冰overeat吃得太多baby-sit看孩子empty-handed一无所获的Derivation:派生词1)前缀:(1)dis-:disagree,dislike,disappear(2)in-(il-,im-,ir-):incorrect,impossible,irregular,(3)un-:unhappy,unable,unfit,由一个词根加上前缀或后缀构成另一个词。addletterstothebeginningortheendofaword.2)前缀(prefix)一般不造成词类的转变，只是引起意思的变化。un-(不,或做相反动作)unhappyundoim-(不)impossibleimpolitere-(重新)rebuildrewritemis-(错误的)misunderstand个别前缀会引起词类的变化en-endangerenlargea-asleepawake后缀(suffix)①名词后缀-oractorsailor-istscientist-mentachievementmovement-(a)tionpreparationexception-ydifficultydiscovery②形容词后缀-fulusefulcheerful-ablecomfortableenjoyable-edmannedcultured-lesscarelessfearless-iveactivedecisive-anEuropeanIndian-ysnowy③动词后缀-izerealizemodernize-enwidenstrengthen-fypurify提纯④副词后缀-lyreallyextremely-wardbackwardeastward⑤数词后缀-teenfourteenfifteen-tyfortyfifty-thninthtwelfthTask3:Exercises3(P37).转化法由一种词类转换成另一种词类。（即一般拼写不变，但是词类发生了变化，有时发音也变化）watern.水----waterv.浇水dirtyadj.脏的----dirtyv.弄脏Hewentinandsatdown.Thearmydownedaplane.(1)v—n:(2)n—v:(3)adj—v:(4)adv—v:Task3:charge(v)—charge(n)hand(n)—hand(v)clean(adj)—clean(v)down(adv)—down(v)Exercises2&3(P36)Task3:Exercises2&3(P36)1.Weshallcarpettheroom.2.Agroupofpolicemenwerestationedintheareaaftertheexplosion.3.Thecarbackedthroughthegateofthehall.4.Theydecidedtobackhisplan.5.Itwaslateatnightthattheytoppedthehighmountain.6.Icannotreallypicturesuchakindmanasamurderer.（v.铺地毯）（v.驻扎）（v.倒退、倒车）(v.支持)（v.登顶、到达）（v.想象）一、说出标颜色单词的词性及意义。7.Theyhadtoclearthesnowfromthestreet.8.ThatAfricancountryhasbeenfreedfromeconomiccrisis.9.TianAnMenSquareisfrequentedbypeoplefromallkindsoflife.10.Youhavewrongedhimbysayingthathewasdishonest.（v.清扫）（v.解脱、恢复）（v.经常参观、光顾）（v.冤枉）1.Thepilotalwayshadasenseof______.Heexplainedwhathadhappenedina________mannertomakepassengersfeelbetter.(humorous;humor)2.I______can’tunderstandthe_______Frenchhespoke.(simple;simply)3.Theworkisimportantbutratherboring.Itneeds_______,soyoumustbevery______.(patient;patience)二、根据句义选择正确的单词填空。humorhumoroussimplysimplepatiencepatient1.Thatmanwas________enoughnottotellthemanagerthathewouldnotdothejob.A.careB.carefulC.carelessD.carelessness2.Thesoldierdiedforsavingthechild,sohis________isheavierthanMountTai.A.dieB.deadC.diedD.death3.Thechildlooked________athisbrotherwhowasbadlywounded.A.sadlyB.sadnessC.sadlessD.sadBDA三、选择正确答案。4.Thethree_______chairisn’tsuitableforayoungchild.Hemayfalloff.A.leggingB.leggedC.legsD.leged5.Stephensonbecamethe______railwayengineerintheworld.A.leadB.leaderC.leadingD.leadership6.Whentheteacherpraisedhimforworkingoutthemathsproblem,Jacklooked_____aboutathisclassmates.A.proudB.proudlyC.prideD.pridelyBCB7.Toeveryone’s______,thegirlfinishedthejobquitewell.A.surprisedB.surpriseC.surprisingD.surpriser8.Heisanexpertatphysics.Weallcallhima______.A.physicsB.physicalC.physicistD.physicianBC9.—Whatareyoudoinghere?—Oh,myteacheraskedmetowriteapassageabout________inEnglish.—Youcanwrite________passageinEnglish?A.600words；a600-wordsB.600-word；a600-wordsC.600words；a600-wordD.600words；a600-wordsCHomework1.FinishtheexercisesinDiscoveringusefulstructures.2.FinishtheexercisesinUsingstructuresinWorkbook.