1、教学材料：外研版高中英语新教材选择性必修第一册教学内容：Unit 6 Nurturing nature第四课时：Using language执教人： Observe and saya Wild animals such as these Tibetan antelopes have now been using these passages for years .b before I know it, we have reached tanggula station.1 Which of these statements is true about sentence (a)? (1) Wild
2、 animals started using these passages in the past. (2) Wild animals used these passages only once. (3) Wild animals still use these passages now.2 What is the difference between the expressions in red in sentence (a) and (b)?They are different in form and meaning. Present Perfect Continuous: have be
3、en doingPresent Perfect: have doneIn form:In meaning: the red part in sentence (a) means the action is continuous from the past; While the red part in sentence (b) means the action happened once in the past.1. The train has been racing along steadily since it left Xining. 2. All this time, the song
4、“Sky Railway” has been playing inside my head.3. The journey has been flying by, .4. The Qinghai-Tibet Plateau has been attracting peoples admiration for centuries.5. Now, thanks to our efforts, passengers from all over the country have been enjoying these magical landscapes.1. The train _ along ste
5、adily since it left Xining. 2. All this time, the song “Sky Railway” _ _ inside my head.3. The journey _by, .4. The Qinghai-Tibet Plateau _ peoples admiration for centuries.5. Now, thanks to our efforts, passengers from all over the country _ these magical landscapes.has been racinghashas been flyin
6、g has been attractinggo Ready? been playinghave been enjoyingFocus on Focus on 基本用法基本用法Present Perfect Continuous 现在完成进行时现在完成进行时 基本概念基本概念 常用时间状语常用时间状语 现在完成时和现在完成现在完成时和现在完成进行时的区别进行时的区别现在完成进行时表示现在完成进行时表示动作从过去某一时间动作从过去某一时间开始一直持续到现在开始一直持续到现在，这个动作可能，这个动作可能刚终刚终止止，也可能，也可能还在进行还在进行。 We have been waiting for
7、you for half an hour.我们已经等你半个钟头了。我们已经等你半个钟头了。（动作刚终止，不再继续下去动作刚终止，不再继续下去） The Chinese have been making paper for two thousand years.中国有中国有2000年的造纸历史。年的造纸历史。（动作还将继续下去动作还将继续下去） 现在完成进行时的基本概念现在完成进行时的基本概念现在完成进行时常与表示一段时间的状语现在完成进行时常与表示一段时间的状语连用，例如：连用，例如：all the time, this week, all night, these few days, for
8、., since.等。等。 A private detective has been tailing him for several weeks. 一位私人侦探几个星期以来一直在跟踪他。一位私人侦探几个星期以来一直在跟踪他。 Craig loves outdoor activities- he skis in winter and has been fishing and hunting since he was a child. Craig热爱户外活动，冬天他去滑雪，他从小热爱户外活动，冬天他去滑雪，他从小 就开始钓鱼和打猎。就开始钓鱼和打猎。 常与现在完成进行时连用的时间状语常与现在完成进
9、行时连用的时间状语现在完成时和现在完成进行时的区别现在完成时和现在完成进行时的区别1. 在不同时间状语的情况下，现在完成进行时在不同时间状语的情况下，现在完成进行时的动作不一定已经完成，很可能持续下去，而的动作不一定已经完成，很可能持续下去，而现在完成时一般表示动作已经完成现在完成时一般表示动作已经完成。即。即现在完现在完成进行时成进行时强调强调动作的延续性动作的延续性，而，而现在完成时现在完成时强强调调动作的结果动作的结果。 Ive been designing solar racing cars. 我一直在设计太阳能赛车。我一直在设计太阳能赛车。 Ive designed five or
10、six different cars. 我已经设计五六辆小汽车了。我已经设计五六辆小汽车了。2. 现在完成进行时现在完成进行时往往表示往往表示动作在重复动作在重复，而现在完成时一般不表示动作的重复而现在完成时一般不表示动作的重复。 Ive been taking part in races for four years. 我这四年一直在参加比赛。我这四年一直在参加比赛。 How many races have you taken part in? 你参加多少场比赛了？你参加多少场比赛了？ 3. 现在完成进行时现在完成进行时与所有进行时态一样带与所有进行时态一样带有感有感情色彩，可使表达显得生动
11、情色彩，可使表达显得生动，而，而现在完成时现在完成时往往往往只表明一个事实、一种影响或结果只表明一个事实、一种影响或结果，不带感，不带感情色彩情色彩。 Recently Mary has been doing sports regularly 最近玛丽一直定期做运动。最近玛丽一直定期做运动。(有表扬意味有表扬意味) Recently Mary has done her sports regularly. 最近玛丽定期做运动。最近玛丽定期做运动。(只说明一个事实只说明一个事实)More and more scholars _ in Silk Road in recent years.schola
12、rs,show interest in,Silk Road,in recent yearshave been showing interest“APEC Blue” _ since Nov. 11 2014 to hope to make it a “new normal” in heavily polluted cities.APEC Blue, use, since Nov. 11, 2014has been being usedI _ Pita Bread Soaked in Lamb Soup before. I,never, eat,beforePita Bread Soaked i
13、n Lamb Soup(羊肉泡馍羊肉泡馍)have never eaten AlienUFOThe first time I _ (observe) aliens in 1963 was frightening!observedThey _ to me since 1964. They speak English well!have been talkingI also know some Yetis, snowmen on the Himalaya mountains. I _ already _ (take) a lot of photos of them.takenhaveI _(wat
14、ch) the Nessie Monster in 1992 and _(know) they are formed because of natural factors through a lot of research. watchedhave knownRecently I_ (see) an unusual number of UFOs! They are really amazing!have seen I _ (write) a book on UFOs since last Friday. I _ (be) able to finish it early next year.ha
15、ve been writingwill be The first time I observed aliens in 1963 was frightening! They have been talking to me since 1964. They speak English well! I also know some Yetis, snowmen on the Himalaya mountains. I have already taken a lot of photos of them. I watched the Nessie Monster in 1992 and have kn
16、own they are formed because of natural factors through a lot of research. Recently I have seen an unusual number of UFOs! They are amazing! I have been writing a book on UFOs since last Friday. I will be able to finish it early next year.in 1963 since 1964alreadyin 1992Recentlysince last Fridaynext
17、yearAre you a Tense master?P65 2has been makingis movinghave been flyinghave been givenhave been usinghave been hearingP65 3The number of trees has been increasing in the last 23 years.Desert areas have been reducing in the last 20 years.Butterfly population has been increasing/has been becoming lar
18、ger and larger in the last 20 years.P65 4Summary1. 现在完成进行时现在完成进行时表示表示动作从过去某一时间开动作从过去某一时间开始一直持续到现在始一直持续到现在，这个动作可能，这个动作可能刚终止刚终止，也可能也可能还在进行还在进行。2. 用于现在完成进行时的时间状语用于现在完成进行时的时间状语: all the time, this week, all night, these few days, for., since.等。等。3. 现在完成时和现在完成进行时的区别现在完成时和现在完成进行时的区别： 动作是否有动作是否有延续性延续性 是否表示
19、动作是否表示动作重复性重复性 是否有是否有感情色彩感情色彩 The past is a history; the future is a mystery; the present is a gift. Only if we grasp the present and perform like “the present perfect continuous” on the way to success, can we turn the mysteries into great achievements!Put the verbs in brackets in the Present Perfec
20、t or Present Perfect Continuous.Mike: At last! Where _ you _(be)? I _(wait) for an hour! Helen: Sorry, I _(talk) to an old friend. I _(not see) her for years. And imagine, we met in the middle of the street, just like that.Mike: What _ she _ (do) since you last saw her?havebeenhave been waitinghave
21、been talkinghavent seenhasbeen doingHelen: She _(work) as a telephone operator in a hotel but she wants to change her job. She _ (not get on) well with her boss recently.Mike: Our company is looking for an operator. _ she _(have) any interesting offers yet?Helen: I dont think so. She _ (not look) fo
22、r a long time. She _ just _ (start).Mike: Then tell her about this offer. Shell appreciate it.has been workinghasnt been getting onHashadhasnt been lookinghas started1. The first use of atomic weapons was in 1945, and their power _(increase) enormously ever since.2. Years ago we didnt know this, but
23、 recent science _(show) that people who dont sleep well get ill easily.3. Look! Somebody _(clean) the sofa.Well, it wasnt me. I didnt do it.4. How long _ you _(work) in the factory?Since 1990.5. It is the most instructive lecture that I _(attend) since I came to this school.Fill in the blanks with t
24、he correct tense.has been increasinghas shownhas cleanedhave been workinghave attended6. Do you regret not having gone abroad?Not at all. I _(not, earn) as much, but Im glad to contribute to our motherland.7.Oh, no! Were too late. The train _(leave)Thats OK. Well catch the next train to London.8In o
25、rder to find the missing child, villagers _(do) all they can over the past five hours.9The manager _(tell) the workers how to improve the program since 9 am.10The two friends _(chat) on the Internet for three hours, and they will go on till next morning.Fill in the blanks with the correct tense.have
26、 not earnedhas lefthave been doinghas been tellinghave been chattingRational cloze 1 (text)Im so excited that I am travelling along the railway that was called “impossible” by many foreign experts. The train runs fast and 1._(steady) across the “roof of the world”. It takes years to build the Qingha
27、i-Tibet Railway, 2._is a record of all Chinese peoples efforts to overcome the most difficult engineering challenges. How 3._(protect) the delicate ecosystem was among the top 4._(concern). The splendid Qingshuihe Bridge that can allow the animals to move safely and freely in their habitat is built
28、over permafrost. Wild animals such as Tibetan antelopes have now been using these passages for years. 140,000 square metres of wetland was moved to a new area so as to protect its distinct ecosystem.Tanggula Station 5._(locate) at over 5,000 metres 6._sea level, so workers have faced the greatest ch
29、allenge of the thin air, changeable weather and high levels of UV radiation. 7._ several oxygen-making stations were constructed to keep them 8._(health), and they were also able to enjoy regular holidays in lower areas. As we pass Cuona Lake, a sense of pride and 9._(achieve) fills my heart.The Qin
30、ghai-Tibet Plateau 10._(draw) peoples admiration for centuries. Now, because of the efforts of Chinese people, visitors from all over the world can enjoy these magical landscapes.steadilywhichto protectconcernsis locatedaboveachievementhealthyBut/Yethas been drawingSome volunteers to protect Tibetan
31、 antelopes 1._(want) and fortunately, I was able to become one of them! When my friend and I saw the job 2._(advertise) on the Internet, we were both excited, for both of us loved Tibetan antelopes and were in favour 3. _the laws to protect the lovely animals. I used to be 4._ operator in a large co
32、mpany. I had to wear special glasses 5._(avoid) radiation while working. I was really tired of it. Luckily, my friend and I were chosen from so many 6._(apply). But the news really disturbed my parents at the time, 7._they were worried that I couldnt put up with the poor working conditions there. I
33、had a talk with them and told them I had a preference for all kinds of challenges and I also had the qualification to do the job. At last, they had to give in. When my friend and I arrived there, a young leader greeted us 8._(warm). We saw a splendid landmark as well as some Tibetan antelopes 9._(ea
34、t) grass at their leisure. We were wandering on the massive grassland, 10._(enjoy) the beautiful scenery. It hit me that I should be a conservationist to protect the delicate ecosystem.Rational cloze 2were wantedadvertisedofanto avoidapplicantsbecausewarmlyeatingenjoyingCan you understand the usages of the present perfect continuous tense? Make up 10 sentences with the present perfect continuous tense.H
