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1、Unit3Languageinuse【自主学习，基础过关】重点短语getanemailfrom________________anenjoyalbemagazine____________environmentaleducation______________becarefulabout/of/with_______throwaway______________collectreusablewaste_____________sellsth.forrecycling____________________raisemoney______________saveenergy___________
2、__________wasteelectricity_________________二、选择填空()1.Toomuchsunshinecando________toyourskin.A.harmB.harmfulC.harmsD.harmless()2.Weshouldcare______thepoorchildrenandprotectthem_______thecold.A.about;aboutB.from;aboutC.about;fromD.for;for()3.Thereisnotea.Wouldyoulikeaglassofjuice_______？A.insteadofB.b
3、ecauseofC.asforD.instead()4.He_______giveyouaphonecallyesterday.A.didB.doC.doesD.todo()5.Hewalkstoschool________riding.A.insteadofB.butC.insteadofD.and()6.Theglobalfinancialcrisis(金融危机）hasmademanypeople__________A.tocareforB.tookcareofC.becarefulwithD.tobecaredabout()7._______itwasverycold,_______he
4、wentoutwithoutanovercoat.A.Although;butB./;althoughC./;butD./;so【合作探究，释疑解惑】前缀、后缀构词法加前缀、后缀是英语中最常见的扩充词汇的方式，也是学习英语必须掌握的构词法。比如，我们学会care,就能掌握careful,careless,carefullycarelessly.下面我们介绍几个常见的前、后缀：1.re+动词或形容词表示“再”如：rewrite,reuse,recycle,retell,rebuild,reusable(adj可重复使用的)2.in(im)-表示“无，不”后面常加形容词，如：incorrect,i
5、mpossible,impolite3.un-表示“不，无”，后面常加形容词，如：untrue，unhappy,uncomfortable,unusual4.dis-表示“不，无”后面常加动词或形容词，如：dishonest（adj）,disagree,disappear,dislike5.-able表示“可能，易于，适合于”，构成形容词，如：comfortable,enjoyable,eatable(可吃的)6.-ful表示“充满…的，具有…性质的”构成形容词，如：helpful,hopeful,powerful,useful,careful,beautiful7.-less与ful相反，表
6、示“少的，不足的”构成形容词，如：helpless,hopeless,useless,careless,homeless【检测反馈，学以致用】一用所给动词的适当形式填空1.Weshouldbe__________(thank)toourparents.2.ReadingEnglishforhalfanhoureverydayisvery_______(help)tous.3.It’s________(use)tosaysomuchtohim.Youcan’tchangehisidea.4.wehopethismilkis_________(harm)tobabies.5.Weshoulddoo
7、urbesttohelpthechildrenwhoare_________(home)6.It’sa_________(wonder)picture.Ihaveneverseenitbefore.7.Thecomputerisvery________(use)foryoutolearnEnglish.8.Be________(care)whenyoucrossthestreet.9.Whichi
