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1、Module6SaveourworldUnit3LanguageinuseWecaneasilyfindsuchsceneseverywhereinbigcities.Peoplearetryingtodealwithrubbishnow.deforestationsandstormeliminatesandstorm在一个单词的前面或后面加上一个词缀，就可以构成一个新词。根据词缀的位置，分为前缀和后缀两种。掌握一些常见的词缀，对单词的记忆和理解有很大的帮助。比如care,可构成careful,careless,carefully,carelessly。
2、下面我们来学习几个常见的前、后缀：Grammar1.表示否定意义“无，不”的前缀impolite,impossibleun-in-dis-im-il-unfair,unhappyinactive,inhuman,indirectdisagree,disappearillegal前缀：2.表示程度、大小的前缀super-over-mini-under-superstar,supermarket,superman,superpoweroverhead,overeat,overuseminibus,miniskirt,minicarunderground,un
3、derdevelop前缀：3.表示“再；重”的前缀re-rewrite,reuse,recycle前缀：4.表示“拥护”、“反对”的前缀pro-anti-pro-Chinese,pro-Americananti-war,anti-pollution5.表示“整个、完全”意思的前缀al-表示“完整，完全”：alone,almostover-表示“完全，全”：overall,overflow前缀：–able表示“可能，易于，适合于”，构成形容词。如：renewable,eatable(可吃的)，lovable，comfortable,movable后缀：常见
4、的后缀：2.–ful表示“充满...的，具有...性质的”，构成形容词。如：helpful,hopeful,powerful,useful,careful,beautiful后缀：3.–less与-ful相反，表示“少的，不足的”，构成形容词。如：helpless,hopeless,powerless,useless,careless1.动词变名词-ation-ment-al-ee-er-orsatisfaction,education,realizationdevelopment,movementarrival,refusaltrainee,emplo
5、yeeteacher,workervisitor,sailor改变词性的后缀2.形容词变名词-ness-ity-ismhappiness,meanness,carelessnessability,possibilityMarxism,criticism3.名词、形容词变动词-ify-ize-enbeautify,simplifyrealizequicken,widen,sharpen4.名词变形容词-y-ish-some-ous-fulwindy,rainy,sandyfoolish,feverishhandsome,troublesomedangero
6、us,humoroushelpful,careful,peacefulPractice1.Nowtheclimategetswarmerandwarmerbecausethe________(pollute)isgettingmoreserious.2.Canyoudoyourhomeworkmore__________(careful)nexttime?Youmademanymistakes.3.Itis________(hope),nomatterwhatwedotomakeitbetter.pollutioncarefullyhopelessCom
7、pletethesentences.fullofcare_______________AcarecollectdonehopepossibleusualusedwantedwasteB-able-fulim--lessre-un-carefulMakenewwords.JointhewordsinBoxAwiththepartsofwordsinBoxB.1.canbecollected__________2.notdone__________3.fullofhope____________4.withoutanyhope_______5.notposs
8、ible_________6.notusual___________7.notu
