Unit3CelebrationPeriodThreeGrammar课件（北师大版必修1，广东专用）.ppt

Unit 3 Celebration Period Three Grammar 课件（北师大版必修1，广东专用） ; ;现在进行时;过去完成时;注意： 1．被动语态中，切不可丢掉某些固定短语中的介词或副词。 That old man was taken good care of by his relatives. 那位老人受到他亲戚的很好的照顾。 2．“get＋过去分词”也可表示被动，较口语化。 She gets paid not by the month but by the year. 她是拿年薪，不是按月计算工资。;3．need，require，want，worth后接-ing，这时动词的-ing形式是主动形式表示被动意义。 The film is worth seeing again. 这部电影值得再看一遍。 The desks and the chairs need repairing during this summer holiday.暑假的时候这些桌椅需要修理。;4．某些表示某种属性特征的动词，不用被动形式。这类词有sell，wear，wash，read，open，shut等及物动词作不及物动词用，跟副词easily，well，nicely，smoothly等连用时，多用主动表示被动。 The beautiful table cloths sell well. 这些漂亮的桌布卖得很好。 This coat dries easily.这件外套容易晾干。 Your pen writes smoothly.你的钢笔写起来很流畅。;情态动词 1．ought to的用法 ought to为情态动词，无人称、时态变化，比should语气稍强。 (1)肯定句 You ought to be here on time.你应该按时到此。 (2)否定句 You ought not to leave without permission.(ought not可写作oughtnt) 你不应该未经许可擅自离开。;(3)疑问句 Ought I to accept the job？我该接受这份工作吗？ 用于完成时态时ought to have done表示(过去)应该做却没有做的事情，表示“责备；后悔”等。而ought not to have done表示本不该做却已做了。should也有此用法，意义一样。 Its nine now.You ought to have finished the job before eight. 现在已九点了，你本该八点前就完成这项工作的。(本该做却未做，指8点前未完成) You ought not to have told him the truth of his illness. 你不该告诉他病情的真相。(本不该做，却做了，他已知真相);2．have to与can;【单项填空】 1．Im going to Europe on vacation together with John if I ________ find the money. A．can B．might C．would D．need 答案　A　[考查情态动词。can能，会；might可能，would将，愿意；need需要。由句意“如果我能找到钱，我将与John一起去欧洲度假”。] ;2．(2011·天津)In the last few years thousands of films ______ all over the world. A．have produced B．have been produced C．are producing D．are being produced 答案　B　[句意：在过去的几年里，世界各地生产了数千部电影。句中时间状语in the last few years，谓语动词应该用现在完成时，又电影是被生产，所以此处应用被动语态。];3．The letters for the boss ________ on his desk but he didnt read them until three days later. A．were put B．was put C．put D．has put 答案　A　[考查时态和语态。句意：给老板的那些信件被放到老板的桌上，但是直到三天后老板才读那些信件。根据句意，应用被动语态，可排除C项和D项；根据主语the letters是复数概念，故答案为A。] ;4．Before she realized what happened，she got ________ on the head. A．hit B．to be h