1、Section Discovering Useful Structures Grammar 现在完成进行时新知导引诵读下列例句并感知画线部分的共性1I have been reading the book.2I have been living here since 1988.3I have been waiting for two hours.4She is very tired.She has been working all morning.5We have all along been making mistakes like this.共性呈现所有画线部分都是由have/hasbee
2、ndoing构成的，都属于现在完成进行时。语法精释知识点一 现在完成进行时1构成have/hasbeenv-ing2用法(1)表示动作从过去某时开始，一直延续到现在，将来还可能延续下去，强调动作的延续性。I have been waiting for an hour,but she hasnt come yet.我都等了一个小时了，但是她还没来。Tom has been working hard since the new term began.自从新学期开始，汤姆一直在努力学习。(2)表示从过去某时开始到现在这一段时间内动作一再重复发生。She has been phoning Jim ev
3、ery night for the past two weeks.两星期以来，她每天晚上都给吉姆打电话。You have been telling me not to be late all the way.一路上你一直在告诉我不要迟到。(3)表示动作刚刚结束，该动作一般不再继续，有时会指出结果。I have been playing ping-pong all morning,so Im sweating.整个上午我一直在打乒乓球，所以我浑身是汗。Ive been painting the door,so my hands are very dirty.我一直在给门刷油漆，所以我的手很脏。(
4、4)表示某种感情色彩。You have been daydreaming but never make an effort.你一直在做白日梦，但从不努力。(指责)You have been lying to me.你一直在对我说谎。(气愤)即学即练1 单项选择/语法填空(1)Excuse me,which movie are you waiting for?The new Star Wars.We _ here for more than two hours.Awaited BwaitCwould be waiting Dhave been waiting(2)Dashan,who _ cro
5、sstalk,the Chinese comedic tradition for decades,wants to mix it up with the Western stand-up tradition.Awill be learning Bis learningChad been learning Dhas been learningDD(3)Where is Peter?I cant find him anywhere.He went to the library after breakfast and _(write)his essay there ever since.(4)Ton
6、y,why are your eyes red?I _(cut)up peppers for the last five minutes.has been writinghave been cutting知识点二 现在完成进行时与现在完成时的区别1现在完成时强调的是某个刚刚完成的动作或某个过去的动作对现在的影响或产生的结果；现在完成进行时则强调动作的延续性。试比较：I have thought it over.我已经考虑过这件事了。I have been thinking about it.我一直在考虑这件事。2现在完成进行时可以表示动作的反复性；现在完成时一般不表示反复性。试比较：Have
7、you been meeting him recently?你最近经常见他吗？Have 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；现在完成时一般表示平铺直叙。试比较：亨利工作有条不紊。Henry has been doing his work orderly.(含表扬的意味)Henry has done his work orderly.(描述事实)即学即练2 单项选择/语法填空(1)Chinas high-speed railways _ from 9,000 to 25,000 kilometers in the past few year
8、s.Aare growing Bhave grownCwill grow Dhad grown(2)I love coming here and seeing my family and all the friends I _(make)over the years.(3)Since the time humankind started gardening,we _(try)to make our environment more beautiful.Bhave madehave been trying用括号内词的适当形式填空1For the past two years,Gordons st
9、udents _(study)ways to kill bacteria in zero gravity,and they think theyre close to a solution(解决方案)2In the last few years,China _(make)great achievements in environmental protection.3Despite the previous rounds of talks,no agreement _(reach)so far by the two sides.4Marty _(work)really hard on his b
10、ook and thinks hell have finished it by Friday.have been studyinghas made has been reachedhas been working5You know,I _(look)for a job for three months,and this is my first formal interview.6Oh no!Were too late.The train _(leave)Thats OK.Well catch the next train to London.7He _(read)in the library
11、since it opened this morning.8Take a break,Amy.You _(practise)the piano all the morning.Id like to,but this time next week I _(give)a concert at the concert hall.9Tom _(work)in the library every night over the last three months.have been lookinghas lefthas been readinghave been practising will be gi
12、vinghas been working10I _ letters this morning and I _ for four hours so far.(write)11What bad weather!I am sick of it here.So am I.It _(rain)since last Friday.Wish we could see the sun tomorrow.12I wonder if John has forgotten my number.I _(expect)him to call me for the past two hours.13John,why ar
13、e you so upset?I _(look)for my cell phone all morning but it is nowhere to be found.have been writing have writtenhas been raininghave been expectinghave been looking14Nancy doesnt look very well.Whats wrong with her?She has a terrible headache because she _(work)too long.She should stop to have a good rest.15Excuse me,madam.Ellen,a journalist from the Daily Mail_(phone)all day.Could you speak to her now?has been workinghave been phoning