Unit2 Topic 3What can we do at home to protect the environment知识点和测试练习题

Unit2Topic3Whatcanwedoathometoprotecttheenvironment语法重点：并列句：是由并列连词把两个或两个以上的简单句连在一起构成的句子，连词前可用逗号，也可不用逗号。通常由and，but,while,or,so等连词来连接。如：1．表示并列关系，动作先后关系，常用连接词有and,notonly…butalso…等。如：Hisfatherisateacherandhismotherisadoctor.他的父亲是一位老师，母亲是一位医生。Mr.Greencannotonlydriveacarbutalsorepairit.格林先生不但会开车而且还能修车。2．表示转折，常用连词有but,while等。如：Iboughtmysisterapresent,butshedidn’tlikeit.我给妹妹买了一件礼物，但是她并不喜欢。Tomdoeshouseworkeverydaywhilehissisterdoesnothing.汤姆每天都做家务活，而他的妹妹什么也不做。3．表示选择关系，常用连词有or,either…or…等。如：HespeaksFrench,orperhapsheunderstandsit.他会讲法语，或者懂法语。Eitherhecouldnotcomeorhedidnotwantto.他要么是不能来要么是不想来。4.表示因果关系，常用连词有so,for等。如：Hermotherisill,soshehastostayathomeandlookafterhermother.她母亲病了，所以她不得不呆在家里照看她。Thegroundisverywet,foritrainedlastnight.地面很湿，因为昨晚下雨了。考题链接：Myfatherhasagreatsportscollection,_____heplayssportseveryday.orB.butC.andIt’sgettingdark,____theyarestillworking.andB.butC.soD.orTakemoreexercise,______youwillbehealthier.butB.ForC.andD.soFinishyourhomework,______youcan’tplaycomputergames,Jim.butB.tillC.andD.or一、重点短语environmentalprotection环境的保护afewquestions一些问题

workfor…为……工作protectenvironment保护环境spreadthemessageabout…宣传有关…reducethewaste/airpollution减少浪费/空气污染bothsidesof………的两面reuseplasticbags减少使用塑料袋savemoney/energy/electricity省钱/能源/电encouragesb.todosth.鼓励某人做某事softdrinkcans饮料罐子Wastepaper废纸o...把...分成beharmfulto=doharmto...对...有害Failtheexam考试不及格nod/shakethehead点头/摇头hurryup赶快、快点Severaltimes几次giveup（doing）sth放弃（做）某事重要句子…mymainjobistohelp我主要的工作是帮助做有关保护环境的宣传。Weshouldusebothsidesofpaperandreuseplasticbags.Recyclingcanprotecttheenvironment,anditcansavemoney,too.Hehasfailedseveraltimes.Buthenevergivesup.他已经失败几次了。但他从不放弃。三、重点语言点1.Weallknowthatyou’reworkingforanorganizationsthatprotectstheenvironment.我们都知道你在为环保组织工作。workfor…表“为……工作”HeworksforaforeigncompanyinShanghai.他在上海为一家外资公司工作。Weshouldusebothsidesofpaper,andreuseplasticbagsratherthanthrowthemaway.我们应该把纸的两面都使用，将塑料袋再次使用而不是轻易扔掉。a)both修饰复数名词；而either修饰单数名词；如：Therearealotoftreesonbothsidesoftheroad.=Therearealotoftreesoneithersideoftheroad.在路的两边有许多树。SectionB重点短语agreenerperson�环保者oughttodosth.应该做某事shutoff关掉Hadbetterdosth最好做某事rideabike骑自行车insteadof...而不是/代替Travelashortdistance短途旅行saveenergy节约能源as...as...和...一样重要句子First,yououghttoshutofftheelectricitywhenyouleavearoom.首先，你离开房间在时候应该随手关灯。Second,you’dbetterwalkorrideabikeinsteadoftakingabusorataxiifyoutravelashortdistance.第二，如果你短途旅行，最好步行或骑车而不是乘公共汽车或出租车。Itissoeasytobeagreenerperson.成为一名环保使者真容易。Easiersaidthandone说起来容易，做起来难Actionsspeaklouderthanwords.行动胜于雄辩三．重点语言点1.First,yououghttoshutoffthelightswhenyouleavearoom.首先，当你离开房间的时候，应该随手关灯。oughtto情态动词,表“应该;应当”;语气比should强;指道义上应该做的事,有时含有责备或督促的语气。should指主观上感到有责任或义务去做。如：Yououghttohelpyourmotherdosomehousework.你应该帮你妈妈做些家务。Weshouldstudyhard.我们应该努力学习。其否定式和疑问式：Yououghtn’ttogetupsolateinthemorning.你早晨不应该起这么晚。OughtItotellherthebadnews?我该告诉她坏消息吗？Yes,youought.No,yououghtn’t.It’ssoeasytobeagreenerperson.句型：Itis/was+adj.+todosth做某事是....的。句型中it为形式主语，真正主语为：tobeagreenerperson.注意和Itis+adj+（ofsb）todosth。It在这里也是作为形式主语，真正主语为不定式。区别：在使用时要注意adj是说明sb的品质特点的还是说明todosth的就可以了.说明sb的品质特点用ofsb;说明todosth用forsb.，简单一句话说就是：说人的用ofsb.说事的用forsb。考题链接：()1.Wethinkitisdifficult_______them________thecharitywalkwithoutteamspirit.(2010南通)A.for;tofinishB.of;tofinishC.for;finishingD.of;finishingafterall毕竟，终归E.gHeisachildafterall.毕竟，他还是个孩子。SectionC-D一．重要词汇1.producepowerfrom…从……获得能量2.nuclearenergy核能3.Everydaylives日常生活4.usesthtodosth用某物做某事5.Upto30days长达30天6.too..to..太...而不能7.Inthenearfuture在不久在将来8.reachaspeedof+具体数字达到某种速度ataspeedof以某种速度9.runout用光、耗尽10.beusedfordoingsth=beusedtodosth被用作做某事11.Facemanydifficulties面临许多困难12.differenttypesof...不同种类的...13.eventhough即使，尽管14.renewableenergy可再生能源15.In50years50年后二．重要句子1.Tosolvetheenergyproblem,peopleallovertheworldarelookingfornewwaystoproducepower.2.Thisrenewableenergyisusedinpeople’severydaylives.3.Itcannotonlyprotecttheenvironmentbutalsosaveenergy.4.Thetraincanreachatopspeedof431kmperhour.重点语言点1.在文中划出下面的句子并分析Somecountriesusenuclearenergytoproducepower.译：_____________________________________________点拨：usesth.todosth.=usesth.fordoingsth.---使用某物做某事练习：a.在过去人们使用竹子写字.People_______bamboo_____________inthpast.b.人们用风发电。People_____wind_______producingelectricity.区别：还有一些介词也可表示“用”，如：in，by,witha.Youcansolvetheprobleminthisway.译：_________________________________b.Youcanbuylotsofthingswiththemoney.译：______________________________c.Myfathergoestotheofficebycar.译：_____________________________________2Thecostishigh..译：___________________________________点拨：costalittle--花销很少花销太高---______________练习：在大城市生活花销太高。_______________________________toliveinbigcities.Itistoosmalltoholdmanypeople它太小，不能承载太多的人。Too....to...太...而不能...“主语（人）+谓语动词+too＋形容词/副词＋todosth.”这个句型是too...to结构最基本的常用句型。主语是动词不定式的执行者，too后接形容词或副词原级，有时too后也可跟一个起形容词作用的过去分词，to后接动词原形。如：Theboyistooyoungtogotoschool.这男孩年龄太小，不能上学。Hewalkstooslowlytogetthereontime.他走得太慢，不能按时到达那儿hold(v).有多种含义。容纳，包含e.gTheplaneholdsabout300passengers.这架飞机可容纳大约300名乘客。拿着，抓住，进行（比赛，会议等）e.gHewasholdingthebabyinhisarms.他抱着婴儿。召开，举行，进行（比赛，会议等）。E.gTheOlympicGamesareheldeverfouryears.(打电话时)等待，不挂断e.gHoldon,please.请等一下。3.Ittakespeoplejust7minutestogototheairport30kmaway.译：__________________点拨：花费大盘点1.)Ittakessb.时间todosth.---做某事花费某人….时间2.)人spend钱或时间(in)doingsth.---某人花费钱或时间做某事onsth.---某人在某物上花费钱或时间3.)人pay钱for物---某人为某物付钱4.)物cost钱---某物价值多少钱考题链接：—Doyoualwaysspendlotsoftimeplayingcomputergames?—No,butIspendmuchtimemyhomework.on;inB.on;onC.in;onD.in;inIpaidtenyuanforthebook.(写出同义句)Thebook___________________tenyuan.I_________tenyuan__________thebook.4.Thetraincanreachatopspeedof431kmperhour.译：_____________________________点拨：reachaspeedof+具体速度---达到某个速度链接：ataspeedof+具体速度----以某个速度,可用high,low,full等形容词修饰speed。练习：a.北京至天津线火车时速达到每小时300千米。Beijing-Tianjintrain____________________300kmperhour.b.我们以每小时30英里的速度前进。Weweretraveling_____________________thirtymilesperhour.5.However,maglevguidepathsaremuchmoreexpensivethantraditionalsteelrailways.译：__________________________________________________________________点拨：形容词前可加alot,much,far,alittle,even等词修饰；还可在形容词比较级前加表数量的词。练习：a.Don’tgobyplane.It’salotmoreexpensive.译：______________________________b.Hisillnessisfarmoreseriousthanwethought.译：___________________________c.It’salittlecoldertodaythanitwasyesterday.译：____________________________d.Itwascoldyesterday,butit’sevencoldertoday.译：_________________________e.Mysisteristwoyearsyoungerthanme.译：________________________________6.Itneedsitsforeststoremovecarbondioxidefromtheair译________________________.点拨：“need”作为实义动词时，通常用法是：人＋need＋todo物＋need＋doing物＋need＋tobedone另外，“need”后还可以直接跟名词。请看下面的例子：（1）．WeneedtocollecttheparcelbeforeweleaveforEngland．去英国之前，我们需要收拾好行李。（2）．Weneed______(tell)himthetruth．我们需要告诉他真相。（3）．Mycarneedsrepairing．我的汽车需要修理。（4）．Theflowersneedwatering．这些花需要浇水。（5）．Hisleathershoesneeds______(mend)．他的皮鞋需要修补。（6）．Herroomneeds_____(clean)．她的房间需要打扫。7.Th