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1、Module12Module12SaveourworldUnit3LanguageinuseReusemeans“useagain”.Thoughpollutionisheavynow,Idon’tthinkit’shopeless.LanguagepracticeMakeanewwords.JointhepartsofwordsinBoxAwiththewordsinBoxB.Youneedtousesomeofthepartsmorethanonce.A–able-fulim--lessre-un-Bcarecollecthopepossibleuseusualwa
2、ntedwastecollectable,usable,careful,hopeful,useful,wasteful,impossible,careless,hopeless,useless,reuse,unusual,unwantedNowworkingroups.PlaytheguessinggameEnglishforFun.EnglishforFunfullofcare____________2.canbecollected____________3.fullofhope____________4.withoutanyhope____________5.not
3、possible____________carefulcollectablehopefulhopelessimpossible6.notusual____________7.withoutanyuse____________8.useagain____________9.notwanted____________10.makingalotofwaste____________unusualuselessreuseunwantedwastefulSometimesifyouknowthemeaningofthepartsofaword,youcanworkouttheme
4、aningofthewholeword.re+new+able;re=again,able=canberenewable=canbenewagainLearningtolearn1.合成法将两个或两个以上独立且语义不同的单词合在一起构成新词的方法叫做合成法。合成法是一种比较灵活的构词方法，可以合成名词、形容词、副词、代词、动词等。例如：afternoon,sportsman,blackboard,sportsperson,newspaper,构词法airplane,classmate,grandfather等就是通过合成构词法构成的名词；kind-hearted,mid
5、dle-aged,hard-working等为合成形容词；however,maybe,himself,everyone,nothing,overlook等也都是通过合成法构成的单词。2.派生法通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法叫作派生法。要通过派生法理解和记忆单词,我们需要掌握常见的前缀和后缀及派生规律。(1)常见前缀前缀含义例词dis-不disagree,dislikeen-使……处于某种状态enable,enrichim-,in-不impossible,impatient,inexpensiveinter-在……之间,相互internation
6、al,interconnect前缀含义例词mis-错误地mislead,misunderstandnon-不,非non-smoker,non-nativere-再,重复rewrite,retellun-不unable,unhappy,unpopular(2)常见后缀后缀功能例词-er,-or构成名词teacher,worker,visitor-ianmusician-ingbuilding,painting,shopping,meaning-istartist,scientist后缀功能例词-ment构成名词agreement,government-nesscoldne
7、ss,happiness,illness-thtruth,warmth-tioncompetition,education,information,invitation-tyactivity,safety后缀功能例词-able,-ible构成形容词comfortable,eatable,enjoyable,possible,-alenvironmental,international,national,traditional-fulcareful,helpful,useful-iveactive,expensive-lesscareles
