八年级下册英语unit9 section a 4a-4c课件

1、section agrammar focus 4c1. 我去过北京两次。我去过北京两次。 i _ _ _ beijing twice.2. 旅客已经上船了吗？旅客已经上船了吗？ _ the passengers _ on board yet?3. 这个故事如何结束？这个故事如何结束？ how did the story _ _?have been tohavecomplete the sentences. end upgone4. 昨天他没有去那儿，我也没去。昨天他没有去那儿，我也没去。 he didnt go there yesterday. _ _. 5. 你听说过太空站吗？你听说过太空站

2、吗？ have you ever _ _ the space station? me neitherheard of/about have you ever been to a science museum? yes, ive been to a science museum./ no, ive never been to a science museum. have you ever visited the space museum? yes, i have. i went there last year./ no, i havent.ive been to the art museum m

3、any times. me, too. and ive also visited the nature museum. ive never been to a water park. me neither.肯定式肯定式否定式否定式i/you/we/they have finished the work.he/she/it has finished the work.i/you/we/they have not finished the work.he/she/it has not finished the work.构成：构成：have(助动词助动词) + p.p has(第三人称单数助动词第

4、三人称单数助动词) + p.p 疑问式疑问式回答回答have i/you finished the work?has he/she finished the work?yes, you/i have.no, you/i havent.yes, he/she has.no, he/she hasnt.have not 常缩略为常缩略为 havent。has not 常缩略为常缩略为 hasnt。have you had your lunch yet?yes, i have. i have just had it. (现在我现在我不饿了不饿了)表示过去发生或已表示过去发生或已经完成的动作对现经完成

5、的动作对现在造成的影响或结在造成的影响或结果。果。i have already taught him some english.john has never been to the space museum.my boy has just started junior high school.现在完成时现在完成时常常与时间副词与时间副词already, never, ever, just, before, yet等连等连用。用。ever 意为意为“曾经曾经”，用于疑问句或否，用于疑问句或否定句中，放在助动词与过去分词之间。定句中，放在助动词与过去分词之间。e.g. have you ever

6、been to hong kong?你曾去过香港吗？你曾去过香港吗？ i havent ever spoken to her. 我未曾和她说过话。我未曾和她说过话。 never意为意为“从来没有从来没有”常与常与before连连用，多放在助动词与过去分词之间。用，多放在助动词与过去分词之间。 e.g. i have never travelled by plane before. 我以前从来没有乘飞机旅行过。我以前从来没有乘飞机旅行过。 比较：比较：he has been to beijing. 他曾去过北京。他曾去过北京。 （人已回来，可能在这儿）（人已回来，可能在这儿） he has go

7、ne to beijing. 他已经去北京了。他已经去北京了。 （人已走，不在这儿）（人已走，不在这儿）have / has been (to) 表示表示“曾经到过曾经到过某地某地”，说话时此人不在那里，已经，说话时此人不在那里，已经回来。侧重指经历。回来。侧重指经历。have / has gone (to) 表示某人表示某人“已经已经去某地了去某地了”，说话时此人可能在路上，说话时此人可能在路上或已到那里，反正不在这里。或已到那里，反正不在这里。 比较：比较：i have seen the film. 我看过这部电影。我看过这部电影。 (我了解这部电影的内容我了解这部电影的内容) i saw

8、 the film last month. 我上个月看了这部电影。我上个月看了这部电影。 (只说明上星期看了这部电影，不只说明上星期看了这部电影，不 涉及现在的情况涉及现在的情况) 一般过去时只强调过去的动作；现在一般过去时只强调过去的动作；现在完成时强调过去的事情对现在的影响。完成时强调过去的事情对现在的影响。 一般过去时通常与表示过去的时间状一般过去时通常与表示过去的时间状语连用；现在完成时则不能与表示过去语连用；现在完成时则不能与表示过去的时间状语连用。的时间状语连用。 一般过去时单纯表示过去的经历；现一般过去时单纯表示过去的经历；现在完成时表示过去的动作或状态延续到在完成时表示过去的动

9、作或状态延续到现在并可能持续下去。现在并可能持续下去。 一般过去时的时间状语有：一般过去时的时间状语有：yesterday, last week, ago, in1980, in october, just now 共同的时间状语有：共同的时间状语有：this morning, tonight, this summer, before, already, 现在完成时的时间状语有：现在完成时的时间状语有：for, since, ever, never, just, already, yet, in past years i. 根据括号内的要求完成下列各句，每根据括号内的要求完成下列各句，每空一词

10、空一词(含缩写含缩写)。1. my parents have come back already. (改为否定句改为否定句) my parents _ _ back _. 2. the boys have been to japan lots of times. (改为一般疑问句改为一般疑问句)_ the boys _ to japan lots of times? have been havent comeyet3. has your sister gone to the bookstore? (作肯定回答作肯定回答)_, she _.4. i have been to the theme

11、park three times. (对划线部分提问对划线部分提问)_ _ times have you been to the theme park?5. the movie has been on for half an hour. (对划线部分提问对划线部分提问)_ _ has the movie been on? how many yes hashow long. 根据括号中所给动词的提示完成下列根据括号中所给动词的提示完成下列句子或对话。句子或对话。1. i _ (work) in this city for 7 years. 2. how long _ she _ (live) h

12、ere? since she _ (get) a new job here. has livedhave worked / workedgot 3. how many words _ you _ (learn) since two years ago?4. my mother _ never _ (hear) of this man. 5. tom _(be) to china twice.havelearned / learnthasheardhas been4aput the correct forms of the verbs in the blanks.1. a: do you wan

13、t _ (come) to the space museum? b: no, ive already _ (be) there three times.2. a: have you _ (see) the robots at the science museum? b: yes, i _ (go) there last weekend.to comebeenseenwent3. a: lets _ (spend) the day at the zoo. b: well, ive already _ (be) there a couple of times, but im happy _ (go

14、) again. 4. a: how about _ (go) to the art museum? there are some special german paintings there right now. b: sure. when do you want _ (go)?spendbeento gogoingto go5. a: have you ever _ (visit) the history museum? b: no, ive never _ (be) there.visitedbeen4bfill in the blanks with the correct forms

15、of the verbs in brackets.most of us _ (see) mickey mouse, donald duck and other famous disney characters in cartoons before. but have you ever _ (be) to disneyland? disneyland _ (be) an amusement park with a special theme disney characters and movies. have seenbeenisthere _ (be) many exciting rides,

16、 lovely restaurants and fantastic gift shops there. you can also _ (see) the disney characters walking around the park. and have you ever _ (hear) of a disney cruise? this _ (be) a boat ride with a disney theme. you can _ (take) a ride on the boat for several days and eat and sleep on it. areseeheardistakeo