现在完成时动词转换学习资料.ppt
现在完成时动词转换 通常与通常与 时间副词时间副词 just（刚刚）（刚刚）,already（已经）（已经）,before,yet（一般疑问：已经；否定句：还）（一般疑问：已经；否定句：还）never,ever等状语连用等状语连用 I have never heard of that before.Have you ever ridden a horse?She has already finished the work.Have you milked the cow yet?Ive just finished my homework.He has not come yet.2。表示过去已经开始，持续到现在的动作或状态，。表示过去已经开始，持续到现在的动作或状态，通通常和常和 for（段时间）（段时间）,since（点时间）（点时间）引导的时间状语引导的时间状语以及以及 so far,by now,these days,in the last ten years 等连用。等连用。I have been here for just over two years.I havent seen her these days.She has learnt English for 6 years/since 6 years ago.They have lived here since 1990.What has happened to the USA in the last 50 years?瞬间动词与延续性动词的转换瞬间动词与延续性动词的转换come/go be(in)leave be away borrow keep buy havedie be dead get to know know begin/start be on go out be offarrive be here/there marry/get married(to)be married(to)fall asleep/get to sleep be asleepjoin the Party be in the Party -be a member of the Partygo to school be in the schoolcatch/get a cold have a coldjoin the army be in the army -be a soldier -be a member of the armygo to school be a studentfinish be overclose be closed open be open()()()()()()()()I have bought a new dictionary for a week.I have had a new dictionary for a week.我买一本新词典已有一星期了。我买一本新词典已有一星期了。They have come here for two days.They have been here for two days.他们来这儿已经两天了。他们来这儿已经两天了。He has joined the League member for two years.He has been a League member for two years.他已入团两年了。他已入团两年了。The man has been dead for several years.The man has died for several years.这个人已经死了几年了。这个人已经死了几年了。have to“不得不不得不;必须必须”,+动词原形。例动词原形。例如如:My pen is broken.I have to buy a new one.我的钢笔坏了我的钢笔坏了,我不得不买一支新的。我不得不买一支新的。have to有人称、数和时态的变化有人称、数和时态的变化,其第三其第三人称单数形式为人称单数形式为has to,过去式为过去式为had to。例如例如:His mother is ill,so he has to stay at home to look after her.他妈妈病了他妈妈病了,他得呆在家里照顾她。他得呆在家里照顾她。Jack said he was so busy last night that he had to work till11oclock.含有含有have to,has to,had to的句子需分别的句子需分别借助助动词借助助动词do,does,did构成疑问句和否构成疑问句和否定句。例如定句。例如:Joe has to go home now.Does Joe have to go home now?Joe doesnt have to go home now.Joe has to go home now,doesnt he?Put the following sentences into English.1.A:火车已经开走了火车已经开走了.2.B:什么时候开走的什么时候开走的?3.A:半个小时之前开走的半个小时之前开走的.2.A:这本书我已经买了两年了这本书我已经买了两年了.3.B:你在哪儿买的你在哪儿买的?4.A:在我老家买的在我老家买的.3.A:你看过这部电影吗你看过这部电影吗?4.B:看过看过.5.A:什么时候看的什么时候看的.6.B:上周星期天看的上周星期天看的.A:The train has left.B:When did it leave.A:It left half an hour ago.A:have you seen the film?B:Yes,I have.A:When did you see it?B:I saw it last Sunday.A:Ive had the book for two years.B:Where did you buy it?A:I bought it in my hometown.此课件下载可自行编辑修改，仅供参考！此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做得更好！谢谢感谢您的支持，我们努力做得更好！谢谢
