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Unit31.adangerousservant一个危险的仆人2.apacketofsweets一包糖3.tricksb.捉弄某人4.lookfoolish看起来很傻5.flowthroughawire流过电线6.theamountofmoney钱数7.getabillforsth.拿到…的账单8.inaway在某种程度上9.muchmoredangerous更加危险的多10.becarefulwith小心对待11.scratchone'shead挠头12.changesth.into…把某物变成…13.formsofenergy能量的形式14.thinkof考虑，想起15.comefrom来自16.beconnectedto与…连接17.callsb./sth.aname把某人/某物叫做…18.apowerstation发电厂19.makeelectricity发电20.containelectricity含有电21.produceelectricity发电22.That'sright.那是对的。23.That'sallright.没关系。24.Allright.好的。25.makerulesforsth.为…制定规章制度26.encouragesb.todosth.鼓励某人做某事27.stopsb.fromdoingsth.阻止某人做某事28.answerthetelephoneimmediately立刻接电话29.bepolitetosb.对某人有礼貌30.keepsth.tidy保持…的整洁31.leanoutofthewindow身子探出窗外32.dressproperly合理着装33.readcomics看漫画书34.saveelectricity节约用电35.anairconditioner一台空调36.awashingmachine一台洗衣机37.avacuumcleaner一个吸尘器38.aricecooker一个电饭煲39.dosomevacuuming/ironing吸尘/熨衣服40.beabletodosth.能做某事41.beunabletodosth.不能做某事42.paintpictures画画43.playchess下棋44.playtheguitar弹吉它45.makeanoise发出声音46.borrowsth.fromsb.向某人借东西47.carrysth.forsb.为某人拎东西48.getsth.forsb.为某人取东西49.changethebulb换灯泡50.turnonthewaterheater打开热水器51.takeabath洗澡（盆浴）52.picksth.upfromthefloor从地上拾起…53.makeallkindsofgoods制造各种各样的商品54.bringentertainmentandnewstomillionsoffamilies把娱乐和新闻带进千家万户55.onfarms在农场1.energyn.energeticadj.2.electricityn.electricaladj.electricadj.electrician.n.3.dangern.dangerousadj.4.servev.servicen.servantn.5.realadj.reallyadv.6.foolv.&n.foolishadj.7.monthn.monthlyadv.8.explainv.explanationn.9.carefuladj.carefullyadv.carelessadj.carelesslyadv.10.visibleadj.invisibleadj.11.politeadj.politelyadv.politenessn.12.batteryn.batteries复数13.containv.containern.14.trickn.&v.