2021高中英语Wheels单元语法二-现在完成时和现在完成进行时学案含解析3

1、2020_2021学年高中英语Unit9Wheels单元语法二_现在完成时和现在完成进行时学案含解析北师大版必修32020_2021学年高中英语Unit9Wheels单元语法二_现在完成时和现在完成进行时学案含解析北师大版必修3PAGE 2020_2021学年高中英语Unit9Wheels单元语法二_现在完成时和现在完成进行时学案含解析北师大版必修3Unit 9 Wheels单元语法(二）现在完成时和现在完成进行时语法图解语法感悟单句语法填空1Since I have_finished (finish) my homework， I can go to the cinema with you

2、this evening.2I have_been_meeting （meet） this young man many times on my way home lately, who is most likely to be our new neighbour。3I have_known （know) Li Wei for ten years. Now he is one of my important business partners.4We have_been_working （work） on this project for four hours。 Lets have a res

3、t。5Now that she is retired, Lucy has_been_considering （consider) going travelling abroad, but she hasnt decided yet。一、基本用法1现在完成时由“have/has过去分词”构成，表示过去所发生的动作或事情对现在造成的影响或结果。2现在完成进行时由“have/has been现在分词构成,表示某一动作在过去某一时间发生，一直延续到现在，有可能到此为止，也有可能继续下去.现在完成进行时是兼有现在完成时和现在进行时两者基本特点的时态。二、现在完成时与现在完成进行时的区别1现在完成时所表示

4、的动作到现在为止已经完成，或者在过去曾经发生过但对现在仍有影响；而现在完成进行时则表示动作在过去发生,但现在仍在继续，侧重未完成。Ive dialed four times; I dont think anyone is in the office。我已经拨了四次电话了，我认为办公室里没人。Ive been dialling； I dont think anyone is in the office.我一直在打电话,我认为办公室里没人.2现在完成进行时可以表示动作的重复，而现在完成时一般不表示重复性。Have you been meeting him recently？你最近常和他见面吗？Ha

5、ve you met him recently？你最近见过他吗？3现在完成进行时有时含有感情色彩，而现在完成时一般是平铺直叙。I have been waiting for you for two hours.我一直等了你两个小时。（可能表示不满）I have waited for you for two hours.我等了你两个小时.（说明一个事实）4有些动词不能用于现在完成进行时，但可用于现在完成时。如:表示状态的动词be， have, exist等;表示感情的动词like， love等；表示感觉的动词see, hear, know等。He has had a cold for a wee

6、k.他已经感冒一周了。I have liked jazz since I was a teenager。从青少年起我就喜欢爵士乐了。I have known her for a long time.我认识她已经很长时间了。5有少数动词（如work， study， live， teach， stay, wait, lie， sleep等）在表示持续一段时间时用这两种时态含义差不多，只是用现在完成进行时更强调动作延续时间的长久性。How long have you worked/been working here?你在这儿工作多久了?Ive lived/been living here since

7、 1988。自1988年以来我就一直住在这儿.6与一段时间连用时可以用现在完成时也可以用现在完成进行时；但与次数连用时只能用现在完成时，不能用现在完成进行时。eq blcrc （avs4alco1（It hasnt rained for six weeks。，已经六个星期没下雨了.，It has been raining since yesterday and it is still raining。,从昨天起,雨就没停过，而且现在还在下。）eq blcrc (avs4alco1（He has rung me up five times since 12 oclock。，从十二点后，他已经给我

8、打了五次电话。，He has been ringing me up all the morning。,他整个上午一直在给我打电话。）)7现在完成进行时不用于被动语态,若一定要用，可用现在完成时的被动语态代替。The problem has been studied for five days。这个问题已研究了五天。即学即用单句语法填空1The first use of atomic weapons was in 1945， and their power has_been_increased （increase） enormously ever since.2It is the most in

9、structive lecture that I have_attended (attend) since I came to this school.3Years ago we didnt know this, but recent science has_shown （show） that people who dont sleep well get ill easily。4In order to find the missing child, villagers have_been_doing (do） all they can over the past five hours。5The

10、 manager has_been_telling （tell) the workers how to improve the program since 9 am.。单句语法填空1Although many measures have_been_taken （take）, the worlds economy is still going down。2She has_been_telephoning （telephone) her husband for the last thirty minutes， but there is no answer。3I have_been_cleaning

11、 (clean) the windows since this morning。4Sorry， but Mr Smith has_left (leave) for Beijing。5The little boy is dirty from head to foot because he has_been_playing （play) in the mud all morning。6By the time he realizes he has_walked （walk） into a trap, itll be too late for him to do anything about it.7

12、He has_been_waiting (wait） in your office since he arrived。8Im pleased hes got his promotion。 He has_waited （wait） a long time for it.9He hasnt got much hair。 He has_been_losing （lose） it since he was only thirty。10She has_lost （lose） her keys。 She cant find them anywhere.。完成句子1Tom has_been_playing the online games for more than twenty hours。汤姆玩网络游戏已经超过二十个小时了。2I have been writing the letter since_then.从那时起我一直在写这封信.3We have_been_studying for nearly three hours。我们已经学了近3个小时了.4Wher