八年级英语下册 chapter 4 a dangerous servant学案牛津上海版

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1、Chapter4Adangerousservant一、词汇1.dangerousadj.危险的     dangern.习惯用语：indanger处于危险中2.servant n. 佣人、仆人 servev.接待，服务             servicen.服务3.electricityn.电    electricadj.电的；用电的     electricaladj.用电的；与电有关的4.butsth.inpackets成包买    习惯用语：buysth.for…=spend…onsth.5.flow(into,through,etc.sth.)v.流；流动6.expl

2、anationn.解释；说明   explainv.解释7.invisibleadj.看不见的，不可见的 反义词：visibleadj.看得见的 visionn.视力；视野 havegood/normalvision视力好/正常8.energyn.能量；能 heatenergy热能  lightenergy光能9.connectv.（使）连接；联结 习惯用语：connectAto/withB                connectAandB10.bury(buried,buried)v.把（某物）掩藏在地下 习惯用语：buryone’snoseinabook埋头看书11.po

3、wern.（1）电力供应   apowerstation发电厂；发电站  （2）能力  powerlessadj.  无能为力的 bepowerlesstodosth.  powerfuladj.强有力的   powerfulweapons强大的武器12.containv.包含；含有；容纳  containern.容器13.chemical（1）n.化学物质（2）adj.化学的  chemicalchanges化学变化  chemistryn.化学  chemistn.化学家；药剂师14.producev.生产  productn.产品 meatproducts肉制品  produ

4、ctionn.生产；产量二、句式1.Althoughelectricityismuchmoredangerousthanwater,… 尽管电比水要危险得多，……（1）althoughconj.=though虽然；尽管（2）muchmoredangerousthan…    much用来修饰比较级    可以修饰比较级的词much,alot,far,……得多alittle,abit,……一点儿     even甚至，still仍然2.Canyoutellmewhatitlookslike?你能告诉我它看起来像什么吗？3.Wecallthethickwirescables.我们把粗电

5、线叫做电缆。4.Wecanchangeitintoformsofenergythatwecansee,hearorfeel.Thatwecansee,hearorfeel是定语从句，修饰energy。that为关系代词，在定语从句中做宾语。三、语法MayI/we…？这一类疑问句的肯定回答为 Yes,please. 或Certainly;                                                否定回答为 Pleasedon’t.或No,youmustn’t. 随堂反馈I.Choosethebestanswers:( )1.John,lookat

6、thetime._______youplaythepianoatsuchalatehour?       A.Must              B.Can           C.May         D.Need( )2.There______beanydifficultyaboutpassingtheroadtestsinceyouhavepracticedalotinthedrivingschool.A.mustn’t        B.must         C.shouldn’t        D.needn’t( )3.Excuseme.______youplea

7、sepassmethatcup?       A.Do                 B.Should      C.Would      D.Must( )4.Weforgottobringourtickets,butpleaseletusenter,______?       A.doyou           B.canwe             C.willyou    D.shallwe( )5.Blackholes______notbeseendire