初二上-unit5(-现在完成时-)

1、授课时间:课程主题：现在完成时 学习目标掌握现在完成时的用法。教学内容1上节课重点知识回顾2. 错题回顾和同沢lead-in:words dictationstep 1:导入大家，最近有看过新闻么？知道我们国家哪个地区乂发生地震了么？那现在四川人们要做的事 是什么呢？ 一方面是不是做好准备工作以防止余震带来更严重的伤害，那另一方面当然是要做 好灾区的重建工作。step 2 key points地震®去)失去家园(现在)*there was an earthquake in sichuan last thursday, theytheir house now (lose/lost/?)

2、 或者：我从国外回来了，我摆好桌子了he from abroad, (returns/retumed/?)jane the table.(lays/laid/?)地震（过去）余震（现在）there was an earthquake in sichuan last thursday, aftershocksuntil now （continue/continued/?） 或者：约翰一直病着michael ill （is/was/?）1：定义（写）过去发生的某一动作对现在造成的影响或结果（以现在的状态陈述过去的动作）表示过去发生的、持续到现在的动作或状态结构：（回顾过去时，现在时，将来时）hav

3、e/has （助动词）+done （done是过去分词，一 般和动词过去式一样）2:过去分词1、规则动词：规则动词的过去分词构成规则与规则动词的过去式的构成规则相同。四点变化 规则：（1）、一般动词，在词尾直接加“ect。workworked一worked ,visit一visited-一visited（2）、以“e %吉尾的动词，只在词尾加“ct。livelivedlived , move-moved-moved（3）、以“辅音字母+ y”结尾的动词，将”y”变为”i“，再加“ed"。studystudied studied ,crycriedcried（4）、重读闭音节结尾，末尾

4、只有一个辅音字母，先双写该辅音字母，再加“eds stopstoppedstopped、dropdropped-dropped2、不规则动词:（跟读）aaa 型：let- let- let cut- cut -cut hit- hit -hit put- put- putset -set- set shut- shut -shut spread -spread- spread read- read -read read 原形发音为/r i: d/,过去式和过去分词发音为/red/abb 型： buy bought -bought feel felt -felt meetmet metsell

5、sold -sold find found -found loselostlosttell -told told sit sat sat thinkthought- thoughtaba 型： become -became become run ran runcomecame- comeabc 型：drivedrove riven forget一forgot一forgotten be-was/were-beengive-gave-givenwrite wrote -written go一wentgone例如：上星期四川发生的地震，现在他们失去了他们的房子（lose-lost-lost）肯定句:

6、there was an earthquake in sichuan last thursday,they their house now （lose/lost/?）提问？学生：（他失去了他的房子）否定句:i have not lost my house疑问句：have you lost your house?冋答：yes, i have/ no, i have not小结：肯定句:主语+have/has+ done+宾语（或者其他）.否定句:主语+have not/has not+ done+宾语.一般疑问句:have/has+主语+done+宾语（或者其他）？练习1：现在完成时练习（一）a

7、）选用have, has填空：1. wetold him the news.2. shecome back from school.3. youwon the game.b）按要求改写下列各句：4. they have bought a computer改成否定句）5. he has lost his book（先改成一般疑问句，再作肯定与否定回答）2:标志词：现在完成时的含义之一是过去完成的动作对现在仍有影响,用以下四大标志词可以表达这种含 义：以already （已经）,just （刚刚）和yet （还；已经）为标志he has already got her help. 他已经得到她的帮

8、助。他已经得到了她的帮助了么？（正确）has he got her helpvet?he has not got her help yet.他还没有得到他的帮助。 i have just visited the museum.他刚参观过博物馆。 以ever （曾经）和never （从不）为标志i have ever visited the museum 我曾参观过博物馆。i have never visited the museum我从未参观过博物馆。 以动作发生的次数为标志he has visited the museum three times.他参观过博物馆三次了 以so far （到目

9、前为止），up till now为标he has got to beijing so far.到冃前为止他己到了北京。so far she has passed the exam.到目前为止她已经通过了考试。this is the best answer up till now.这是口前为止最好的答案 before似前，先前）i think i have met you before.我想我以前见过你。it seems that i have been here before.我似乎以前来过这里含义二表示过去发生的、持续到现在的动作或状态，我们就可以从动作的“延续叩勺特性和“时 间”点段入手：

10、for+时段 since+过去一个时间点（过去从句）为标志i have lived in guangzhou for ten years 我在广州住了 10 年了。i have done this work since yesterday从昨天开始我一直做这个工作i have never met him since he left school自从他辍学后我再也没有见到他小结： 标志词：yet （否定already, just, never, ever, （be,助动词，情态动词之后，实意动词之前） 旬和疑问句），so far （句首或句尾）,up till nowbeforefor+时间段s

11、ince +时间点/过去的从去练习2：、选择合适的词填空。a.用 already 或 yet1) have they taken down the old pictures? no, not.2) most of us have finished our compositions3) he said he hadn't visited the exhibition.b用 since 或 for1) we have learned five lessonsthe beginning of this term.2) mrs liao has been in hospitallast wee

12、k.3) i have stayed at my aunt9stwo weeks.二、用所给动词的适当形式填空。1.1already(see) the film.2. he(finish) his work today ? not yet.3. you(be) to hong kong ? yes, i(be) there twice 4. you ever(eat) chocolate sundaes ? no, never5. my fatherjust(come) back from work. he is tired now.6. where，s li ming ? he(go) to

13、 the teacher5 s office.7. shanghai(be) a small town hundreds of years ago.now it(become) a large city.& i(work) here since i(move) here in 1999-9. so far i(make) quite a few friends here.10. how longthe wangs(stay) here ? for two weeks.3现在完成时的重点词组辨析：have/has gone (to):去 了(去 了，还没有回来)have/has been (to):去过(去过，现在冋来了)have/has been in： 一直在(一直呆在)注：go表示动作(正在进行)be状态(可以是已经完成的)in (呆在) 例如：where is your father? heshanghai.my fathershanghai twice .my fathershanghai for two months, /since two months ago.练习3：用 have gone 或 have been1) where are the boy students ? they to the