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Lesson71A famousclock□Part1:TextWhen youvisit London,one of the firstthings youwill seeis Big Ben,the famousclockwhich can be heard all overthe worldon theB.B.C.If the Houses of Parliament hadhotbeen burned down in1834,the greatclock wouldnever havebeen erected.BigBen takes its name from Sir Benjamin Hall who wasresponsible for the makingof theclock when the new Houses of Parliamentwere beingbuilt.It isnot onlyof immensesize,but isextremely accurateas well.Officials fromGreenwich Observatoryhave theclockchecked twicea day.On theB.B.C.you canhear the clock whenit isactuallystriking becausemicrophones are connected to theclocktower.Big Benhas rarelygone wrong.Once,however,it failedto givethe correcttime.A painterwho hadbeenworking on the tower hung apot ofpaint onone of the handsand slowedit down!□Part2:New wordsand expressions1parliament[paJamant]n.议会,国会2erect[irekt]v.建起3accurate[出kjurst]a.准确的4official©fijel]n.官员,行政人员5Greenwich[grinidj]n.格林威治6observatory[ab7e^atari]n.天文台7check[tfek]v,检查8microphonet^aikrsfaun]n.扩音器,麦克风★国会parliament9tower『taue]n.塔theHousesof Parliament(英国的)国会大厦Member ofParliament国会议员Parliament todayapproved thepolicy,but ithas notyet becomelaw.现在国会通过政策,但是政策还没有变成法律★建造,树立,建起Erect v.put up/set up此建筑是在1900年到1901年间建造的The buildingwas erectedin1900-
2.・ing形式前面无冠词时可接艮艮宾语making thedock;John isresponsibleforthe buildingof thebridge.■ing前有冠词时则其后不能直接跟宾语,而必须用of:the makingoftheclock★It isnot onlyof immensesize,but isextremely accurateaswell.
1.be of…表示人或物的特征我们一样大We areofthesame age.这封信极其重要This letteris ofgreat importance.2Jmmense巨大的,广大的仍然有大量工作需要做There isstill animmense amountof workto bedone.★Officials fromGreenwich Observatoryhave theclockchecked twicea day.Have sthdone我想剪头发I wantto havemy haircut.我需要修一下我的电脑I needto havemy computerfixed.★On theB.B.C.you canhear theclockwhenit isactuallystriking becausemicrophones areconnected tothe clocktower.「Strike v.敲打,钟打点钟刚敲三点钟The clockhas juststruck three.他用拳头敲打桌子He struckhis fistonthetable.
2.Be connectedto被连接至ij很多条管子被连接到热压罐上Many pipesareconnectedtotheautoclave.Connect sthwith sth相连,有关系外国人时常将日本与富士山联想在一起People fromother countriesoften connectJapan withMt.Fuji.★BigBenhas rarelygone wrong.Once howeverit failedtof fgivethe correcttime.
1.gwrong(机器等)发生故障,出毛病我的手表出问题了My watchhas gonewrong.车的引擎发生了故障The engineofthecar hasgonewrong.
2.Fail todo sth没能做成某事他常常未能遵守诺言He oftenfails tokeep hisword.★A painterwho hadbeen workingonthetowerhunga potofpaint onone ofthe handsand slowedit down!slowdown(使)慢下来/减速当交通很拥堵的时候,他把车速减慢下来He slowedhis cardown whiledriving inheavy traffic.□Part4:GrammarDifficult points语法虚拟语气虚拟语气表示动作或状态不是观存在的事实,而是说话人的主观愿望,假设或推-・虚拟语气的定义测等如If Iwere abird,I couldfly inthe air.如果我是一只小鸟,我就能在空中飞行I wishIcould passthe examination.我希望我能通过考试May yousucceed!祝您成功!二.虚拟语气在条件从句中的用法条件从句有两类,一是真实条件句,另一是虚拟条件句如果假设的情况可能发生,是真实条件句,这种情况下谓语用陈述语气if,有表示如果的意思如If timepermits,well gofishing together.如果时间允许,我们就一起去钓鱼(主将从现)如果假设的情况是不存在的或不大可能发生的,则是虚拟条件句虚拟条件句就是对现实条件的一种虚拟假设,所假设的条件一般不符合事实或与事实相反或在现实中发生的可能性极小根据时间的不同,虚拟条件句可分为三种,即与现在事实相反的虚拟条件句、与过去事实相反的虚拟条件句及与将来事实相反的虚拟条件句如If youhad comeyesterday,you wouldhave metthat famousprofessor.如果你昨天来,你就会见到那位著名的教授了(隐含的事实是你昨天没来,也没见到那位著名教授)在含有虚拟条件句的复合句中,主从句的谓语都要用虚拟语气,现将其形式列表如下if引导的非真实条件句主要是对现在、过去和将来情况的虚拟,其用法如下
①表示对现在情况的假设时,从句的谓语动词用过去式(be动词用were),主句的谓语动词用“should/would/could/might+动词原形”的形式;
②表示对将来情况的假设时,从句的谓语动词用过去式(be动词用were)或者u should/wereto+动词原形”的形式,主句的谓语动词用“should/would/could/might+动词原形”的形式;
③表示对过去情况的假设时,从句应用过去完成时,即从句的谓语动词用“had+过去分词”的形式,主句的谓语动词用should/would/could/might have+过去分词”的形式;
④当if引导的非真实条件句中含有were,had或should时,可省略if,并将were,had或should放在主语前面,形成倒装□Part5:Homework.背诵单词课文1lesson
712.Retell thetext.练习总结课文3。