*保定市乐凯中学王春蕊Lesson64:UnitReviewⅠ.词汇1.掌握词汇：yard,rubbish,pickup,bit,abitof,bag,less,environment,throwaway,least,takeout,waste,fix,toilet,sort,metal,weight,percent,mend,must,touch,repair,more,most,bad,litter,takeawalk,seat2.认知词汇：save,garbage,pollution,reusable,pollute,leak,litre,leaky,sink,tap,recycle,plastic,packaging,tear,cassette,deck,buzz,exactly,reuse,power,can,clean-up,lidⅡ.词组和句型cleanup,gettowork,turnoff,haveafit,alittlebit,sort…into…,takeshowers,toomuch/many,leakout,befullof,worryabout,takeawalk,takeatripⅢ.OfferingHelpCanIhelpyou?WhatcanIdoforyou?Yes,please.Thanksforyourhelp.Thankyouallthesame.Ⅳ.语法ObjectClausesΙ宾语从句Ithinkwewastepaperthemost.Ithinkmorepeopleshouldridebikes.Ineverknewthatgarbagewassointeresting.Somepeoplebelievethatdinosaursarestillalivetoday.Idon’tthinkthathewillcome.Iamsurethathewillpassthetest.宾语从句是主从复合句的一种。主从复合句是由一个主句和一个或一个以上的从句构成的。主句是复合句的主体，从句仅仅是主句的一个成分，它从属于主句，不能独立。从句在全句中充当什么成分，就叫什么从句。宾语从句当中的从句在全句中作宾语。由从属连词that引导的宾语从句由连接代词Who,whom,whose,which，what和连接副词where,how,why,when引导的宾语从句由从属连词whether,if引导的宾语从句1.当宾语从句是由陈述句变化而来的时候，该从句通常由that引导。That无具体意义，不作任何成分，因此在口语或者非正式文体中常常被省略。Forexample.WeallsaythatLaoWangisagoodfriend.Weallsay.LaoWangisagoodfriend.I’msure.Youhaveseenthatbookbefore.I’msurethatyouhaveseenthatbookbefore.注：that在句中无词汇意义，在从句中不能充当成分，在口语当中往往省略e.g.Ihearthat____________________________.（一小时后他会回来）Hesaidthat__________________________.（他非常<aname=baidusnap0></a>想念</B>我们）Theteachertoldusthat______________________________________.（地球围着太阳转）hewillbebackinanhourhemissedusverymuchtheearthmovesaroundthesun2.当宾语从句由一般疑问句变来时，须用连词if或者Whether引导，意思为“是否”，表示选择。Forexample:1）Couldyoutellus?willhereallycomehere?Couldyoutellusifwhetherhewillreallycomehere?2）IstheSummerPalaceopennow?couldyoutellme?CouldyoutellmeifwhethertheSummerPalaceisopennow.由从属连词whether,if引导的宾语从句e.g.1.Iwanttoknow_________________________________.（他是否跟我们一起去公园）2.Askhim_____________________.（他是否能来）3.Idon’tknow___________________________.（是否要下雨）ifwhetherhewillgototheparkwithuswhetherifhecancomewhetherit