新概念英语_第2册_第4课_Lesson_4_课件_PPT

1、I.Key words exciting, receive, firm, differentII.Key structures The present perfect simple现在完成时 key points New words and expressionsexciting adj. 令人兴奋的令人兴奋的 receive v. 接受，收到接受，收到firm n. 商行，公司商行，公司 different adj. 不同的不同的centre n. 中心中心 abroad adv. 在国外在国外 【New words and expressions】生词和短语】生词和短语 Language

2、points1. I have just received a letter from my brother.收到某人来信2.He is working for a big firm.get a letter from sb.have a letter from sb.hear from sb.在上班、任职,还可以用work at/ine.g.My father works for a business company.3. he has already visited a great number of different places in Australia. a number of+可

3、数名词的复数，number前一般可用large, great, small等形容词强调数量大小。My brother has never been abroad before, so he is finding this trip very exciting. abroad adv. 在国外（副词, 直接和动词连用）go abroad 去国外 live abroad 国外定居 excitingadj. 令人兴奋的excited 感到兴奋的-ed自己感到 interested, bored, relaxed-ing令人感到interesting,boring,relaxingLanguage p

4、oints4. He has just bought an Australian car and has gone to Alice springs.He has gone to the south.(还在)He has been to the south.(去过)5. He is finding this trip very exciting.find+n+adj.觉得怎么样e.g.I find the film boring. Do you find the book very interesting?Listen and follow1. How long has Tim been in

5、 Australia?Listen and answer the question.Tim has been in Australia for six months.2. What does he do in Australia?He is working for a big firm as an engineer.3. Why is Tim finding the trip exciting?Because Tim has never been abroad before. This is his first trip abroad.Summary writingAnswer these q

6、uestions in not more than 50 words.1.What has the writer just received from his brother?2. Is Tim an engineer, or is he a doctor?3. How long has he been in Australia?4. Has he already visited many places or not?5. Where is he now?6. Has Tim ever been abroad before or not?7. Is he enjoying his trip v

7、ery much or not?Summary writing The writer has just received a letter from his brother, Tim. Tim is an engineer. He has been in Australia for six months. He has already visited many places. Now he is in Alice Springs. Tim has never been abroad before. He is enjoying his trip very much.现在现在完成完成时态时态Wi

8、nterWinter has has alreadyalready comecome. .Grammar现在现在完成完成时的构成形式时的构成形式 have done has助动词助动词过去过去分词分词Grammar用来表示动作或状态发生在过去用来表示动作或状态发生在过去,但它的但它的影响现在还存在影响现在还存在。 They have left. -他们已经离开了他们已经离开了,也就是说现在他们人不在这里也就是说现在他们人不在这里 I have had my lunch. -我已经吃过午饭了我已经吃过午饭了,也就是说我现在不饿也就是说我现在不饿现在现在完成完成时的含义时的含义也可表示也可表示持续

9、到现在持续到现在的动作或状态。的动作或状态。 He has learned English since 2001. -从从2001年开始学的年开始学的,现在还在继续学着呢现在还在继续学着呢sum up一、现在完成时1)构成肯定句：主语+have/has+过去分词+其它否定句：主语+have/has not+过去分词+其它疑问句：Have/Has+主语+过去分词+其它He has been to Australia.He has not been to Australia.Has he been to Australia?nowpastfuture一般过去时一般过去时一般过去时表示的是纯粹在过去

10、发生的事情一般过去时表示的是纯粹在过去发生的事情现在完成时表示的是在过去某个时间开始并持续到现现在完成时表示的是在过去某个时间开始并持续到现在的动作在的动作/状态状态,或者发生在过去却对现在造成的影响或者发生在过去却对现在造成的影响Grammar 现在完成时与一般过去时的比较现在完成时与一般过去时的比较 1）一般过去时一般过去时表示过去某时发生的动作或表示过去某时发生的动作或单纯叙述过去的事情，强调动作单纯叙述过去的事情，强调动作； 现在完成时现在完成时为过去发生的，强调过去的为过去发生的，强调过去的事情对现在的影响，强调的是影响事情对现在的影响，强调的是影响。I saw this film

11、yesterday.（强调看的动作发生过了。）（强调看的动作发生过了。）I have seen this film. (强调对现在的影响，电影的内容已经知道了。）强调对现在的影响，电影的内容已经知道了。） 参考译文参考译文 我刚刚收到弟弟蒂姆的来信，他正在澳大利亚。他在那儿已经住了6个月了。蒂姆是个工程师，正在为一家大公司工作，并且已经去过澳大利亚的不少地方了。他刚买了一辆澳大利亚小汽车，现在去了澳大利亚中部的小镇艾利斯斯普林斯。他不久还将到达尔文去，从那里，他再飞往珀斯。我弟弟以前从未出过国，因此，他觉得这次旅行非常激动人心。Thank you!Thank you!2一般过去时一般过去时常与

12、具体的表示过去的时间状语连用常与具体的表示过去的时间状语连用;现在完成时现在完成时通常与模糊时间状语连用或无时间状语。通常与模糊时间状语连用或无时间状语。一般过去时的时间状语一般过去时的时间状语: yesterday, last week，ago, in1990, in October, just now, - 具体的时间状语具体的时间状语现在完成时的时间状语现在完成时的时间状语: for, since, so far, ever, never, just, yet, till/until, up to now, in the past few years, recently, -模糊的时间状

13、语模糊的时间状语句子中如有过去时的时间副词（如句子中如有过去时的时间副词（如 yesterday, last, week, in 1960）时，不能使用现在完成时，要用过去时）时，不能使用现在完成时，要用过去时错错Tom has written a letter to his parents last night.对对Tom wrote a letter to his parents last night.Grammar3现在完成时现在完成时可表示持续到现在的动作或状态可表示持续到现在的动作或状态,动词一动词一般是延续性的般是延续性的,如如live,teach,learn,work,study

14、, know. 一般过去时一般过去时常用的非持续性动词有常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。等。She joined the League three years ago.(加入的动作不是延续的加入的动作不是延续的)She has been in the League for three years (since three years ago).(在团内的状态可延续在团内的状态可延续)She has been a League member for three years (since thr

15、ee years ago).(是团员的状态可持续是团员的状态可持续)Grammar延续动词表示经验、经历；延续动词表示经验、经历；瞬间动词表示行为的结果瞬间动词表示行为的结果,不能与表示一段不能与表示一段时间的状语连用。时间的状语连用。比较延续动词与瞬间动词比较延续动词与瞬间动词 He has finished the work.他已完成了那项工作。他已完成了那项工作。 (表结果表结果)Ive known him since then.我从那时起就认识他我从那时起就认识他了。了。(表经历表经历)Grammarsince 用来说明动作起始时间用来说明动作起始时间 “自从自从”for用来说明动作延

16、续时间长度用来说明动作延续时间长度 “长达长达”I have lived here for more than twenty years.I have lived here since I was born.My aunt has worked in a company since 1949. I have not heard from my uncle for a long time.比较比较since和和for并非有并非有for 作为时间状语的句子都用现在完成时作为时间状语的句子都用现在完成时I worked here for more than twenty years. (我现在已不在

17、这里工作。我现在已不在这里工作。)I have worked here for many years. (现在我仍在这里工作。现在我仍在这里工作。)GrammarHe has gone to Shanghai.他他(已经已经)去上海了。去上海了。He has been to Shanghai.他他(曾经曾经) 去过上海。去过上海。比较比较 have/has been to , have/has gone toGrammar1. He died 10 years ago. - He _ _ _ for 10 years / since 10 years ago.2. He borrowed th

18、e book 2 weeks ago. - He _ _ the book for 2 weeks.3. He bought the motorbike a month ago. -He _ _ the motorbike for a month.4. He arrived here three days ago. - He _ _ here since three days ago.5. They turned off the light 2 hours ago. - The light _ _ _ for 2 hours.6. He left here 2 years ago. - He

19、_ _ _ from here for 2 years.7. The film began 30 minutes ago. - The film _ _ _ for 30 minutes.8. They opened the door an hour ago. - The door _ _ _ for an hour.9. They closed the door an hour ago. - The door _ _ _ for an hour.10. He joined the army last year. - He _ _ a _ for a year. - He _ _ _ the army for a year. - It _ a year _ he joined the army. 延续性延续性动词和动词和瞬间性瞬间性动词之间的转化动词之间的转化Exercisesum up2)