Chapter4AdangerousservantPartALanguageI.WordsandExpressions1.explainv.解释explanationn.解释pleasegivemeanexplanationofwhyyouarealwayslateforschool.对于你为什么总是迟到,请给我一个解释。2.monthn.月monthlyadv.每月一次地wepaythetelephonebillmonthly.我们每月付一次电话账单。3.politeadj.有礼貌的politelyadv.有礼貌地Tomofferedmeacigarette.Irefusedpolitely.汤姆给我一支烟,我礼貌地拒绝了。4.invisibleadj.看不见的airisinvisible,butwecanfeelitwhenitmoves.空气是看不见的,但是当它移动的时候我们能感受到。5.getsbsth(动词get后跟双宾语)买某物给某人wouldyoupleasegetmeapacketofcrisps?你能帮我买一包薯片吗?6.Change…into…把……变成……wecanchangeelectricityintodifferentformsofenergysuchaslightenergy.我们能把电变成各种形式的能量,比如光能。7.connect…to…连接……到……Thisthickwireisconnectedtomycomputer.这根粗电线连接到我的电脑上。II.LanguageStructure1.情态动词1)can能力、提出请求、请求允许CanIhavealook?2)may请求允许,可能MayIcomearoundthisafternoon?3)must义务、禁止,猜测Thesmellmustbegood.4)needa.作情态动词后接动词原形,但多用于否定和疑问结构中。Youneedn’thurry.Westillhaveenoughtime.b.作实义动词可接sth,也可接to加动词原形。Ireallyneedyourhelp.Youdon’tneedtohurry.Westillhaveenoughtime.2.宾语从句在特殊疑问句充当宾语从句时要将其改成陈述句的语序。Idon’tknowwheretheteacheris.III.Notes能量的表达:heatenergy(热能),movementenergy(动能),lightenergy(光能),soundenergy(声能)其他:electricalenergy(电能),potentialenergy(潜能,势能),chemicalenergy(化学能),solarenergy(太阳能)