1、Unit 6 Nurturing natureUsing languagePresent perfect continuousWhich of these statements is true about sentence(a)?A.Wild animal started using these passages in the past.B.Wild animals used these passages only once.C.Wild animals still use these passages now.NoImageNoImageNoImageActivity 1:Look at t
2、he sentences from the reading passage and answer the questions.a 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.NoImageNoImageNoImageActivity 1:Look at the sentences from the reading passage and answer th
3、e questions.a Wild animals such as these Tibetan antelope have now been using these passages for years.b .before I know it,we have reached Tanggula Station.Whats the difference between the expressions in bold in sentences(a)and(b)?Sentence(a)is in present perfect continuous(have been doing),which sh
4、ows that something started in the past,has continued up until now and will probably continue in the future.Sentence(b)is in present perfect(have done),which shows that something started in the past and continues in the present or something that happened in the past but is important in the present.Pr
5、esent perfect continuousNoImageNoImageNoImageActivity 1:Look at the sentences from the reading passage and answer the questions.a Wild animals such as these Tibetan antelope have now been using these passages for years.b .before I know it,we have reached Tanggula Station.Now look for more sentences
6、with the present perfect continuous tense in the reading passage.The train has been racing along steadily since it left Xining.All this time,the song“Sky Railway”has been playing inside my head.The Qinghai-Tibet Plateau has been attracting peoples admiration for centuries.Present perfect continuousN
7、oImageNoImageNoImagePresent perfect continuous现在完成进行时现在完成进行时 Ive been working with her for 20 years.Tom has been phoning Alice every night for several months.主语主语+have/has been doingI.结构结构II.意义和用法意义和用法现在完成进行时表示从过去开始一直延续到现在的动作，该动作在说话时仍在继续进行，而且可能还要继续下去。现在完成进行时还可以表示从过去到现在的一段时间被反复进行的动作或存在的状态。现在完成进行时常与表示
8、一段时间的状语连用，例如：all the time,this week,all night,these few days,for.,since.等。例如：A private detective has been tailing him for several weeks.Present perfect continuousNoImageNoImageNoImage1.在不用时间状语的情况下，现在完成进行时的动作不一定已经完成，很可能持续下去，而现在完成时一般表示动作已经完成。即现在完成进行时强调动作的延续性，而现在完成时强调动作的结果。例如：Ive been designing solar r
9、acing cars.我一直在设计太阳能赛车。Ive designed five or six different cars.我已经设计五六辆不同的小汽车了。2.现在完成进行时往往表示动作在重复，而现在完成时一般不表示动作的重复。例如：Ive been taking part in races for four years.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？3.现在完成进行时与所有进行时态一样带有感情色彩，可使表达显得生动，而现在完成时往往只表明一个事实、一种影响或结果，不带感情色彩。例如：What have
10、 you been doing?You look fed up.你一直在干什么呀？你看上去很不高兴。III.现在完成现在完成进行进行时与现在完成时的区别时与现在完成时的区别Present perfect continuousNoImageNoImageNoImageActivity 2:Complete the passage with the correct form of the verbs in brackets.I 1 _(hear)a strange sound for a while.Its a deep,loud roar,like a lions.But there arent
11、 any lions here.Or are there?Soon I see what 2 _(make)the noise:a howler monkey.Now I feel less worried.Realising that something 3_(move)on my shoulder,I turn my head to look at it.Oh no!Its a giant spider!I brush it off and it runs under some leaves.I try to bat away the huge insects,which 4 _(fly)
12、around my head in a black cloud for quite a while.I pull off the headset and Im back in my living room.Thank goodness!I 5_(give)the latest virtual reality headset and,for the last twenty minutes,I 6 _(use)it to explore the Amazon.This is an amazing experience and a reminder of how many species there
13、 are in the rain forest.We must do all we can to protect it.have been hearinghas been makingis movinghave been givenhave been usinghave been flyingPresent perfect continuousNoImageNoImageNoImageActivity 3:Look at the charts and make sentences using the present perfect continuous tense.Present perfec
14、t continuousThe number of trees has been increasing in the last 20 years.NoImageNoImageNoImageActivity 3:Look at the charts and make sentences using the present perfect continuous tense.Present perfect continuousButterfly population has been increasing/has been becoming larger and larger in the last
15、 20 years.Desert areas have been reducing in the last 20 years.Example:I started playing basketball two years ago.1.Lisa started running two years ago.Lisa _ for two years.2.My neighbor started living here one year ago.My neighbor _ here for one year.3.My baby sister started sleeping one hour ago.My
16、 baby sister _ for one hour.4.The teacher started talking 30 minutes ago.The teacher _ for 30 minutes.5.The boys and girls started listening to music 20 minutes ago.The boys and girls _ to music for 20 minutes.I have been playing basketball for two years.has been runningExercise 1:Change each senten
17、ce into a present perfect continuous sentence.Present perfect continuoushas been livinghas been sleepinghas been talkinghave been listening1.这些年来，他们一直为我们杂志写稿。2.从下午四点钟到现在，她一直在写信。3.我们一直在这所学校学习了三年。4.你看了多久电视了?How long have you been watching TV?We have been studying in this school for three years.She has
18、 been writing the letter since four o clock in the afternoon.All these years they have been contributing articles to our magazine.Exercise 2:Translate the following sentences into English using present perfect continuous tense.Present perfect continuousNoImageNoImageNoImageDid you knowEcotourism is
19、a type of tourism that conserves the environment.It encourages people to be responsible travellers and involves educating them about the natural world.For countries such as Costa Rica,Kenya and Nepal,ecotourism is an important part of the economy.Some ecotourism holidays involve voluntary work,such
20、as planting trees or counting endangered animals.Tourism and the environmentLead-inNoImageNoImageNoImageAustraliaTourism and the environmentActivity 1:Listen to the conversation and choose the places mentioned.NepalThailandSouth Africaabcd（点击按钮播放音频）NoImageNoImageNoImageTourism and the environmentAct
21、ivity 1:Listen to the conversation and choose the places mentioned.tapescriptNoImageNoImageTourism and the environmentActivity 2:Listen again and complete the notes.Rachel wants to 1 _ and plant frees.also 2 _ rhinos,which will help protect them.eat local food.Rachels dad thinkshe can eat that kind
22、of food at home.the activities sound like 3 _.Rachel wants tolook after 4 _.sleep in a treehouse.Rachels dad wants to5 _ and read a book.（点击按钮播放音频）They will stay in 6 _.Rachel can do ecotourism activities while her dad does what he likes.They will go on 7 _ of the jungle.hike in the mountainshard wo
23、rkcountelephantslie on the beacha nice hotela one-day bike tourNoImageNoImageTourism and the environmentActivity 3:Complete the boxes with the expressions from the conversation.The fact is that.Wouldnt you agree that.?Lets find a compromise.Lets meet in the middle.As a compromise,.I agree,but.The fa
24、ct is that.Wouldnt you agree that.?I agree,but.Lets meet in the middle.As a compromise,.Lets find a compromise.NoImageNoImageTourism and the environmentActivity 4:Complete the passage with the expressions in the box.not eco-friendly create opportunities for new businessesdisturb the wildlifehelp the
25、 local economyhigher carbon emission provide more jobsuse up natural resourcesAs tourism develops,people are becoming increasingly concerned about the environment.Here in our city,there is a heated discussion about whether a hotel should be built at White Beach.The owner of the company thinks the ho
26、tel would attract more tourists,which will _ and _.However,the local people worry that building the hotel is _ and will _,in particular the turtles which lay their eggs on White Beach.But they also admit that building the hotel will _ for people living in the area.Even though the owner of the compan
27、y guarantees that the design will be in harmony with its beautiful surroundings,the local people are still concerned that the hotel may _.Increase tourist numbers will also mean more cars and aeroplanes,which in turn means_.help the local economyprovide more jobsnot eco-friendlydisturb the wildlifec
28、reate opportunities for new businessesuse up natural resourceshigher carbon emissionNow listen to the passage and check your answers.（点击按钮播放音频）NoImageNoImageNoImageTourism and the environmenttapescriptActivity 4:Complete the passage with the expressions in the box.NoImageNoImageTourism and the envir
29、onmentActivity 5:Complete the boxes with the expressions in Activity 4.1.attracting more tourists2.creating opportunities for new businesses3.helping the local economy4.providing more jobs for people living in the area1.not eco-friendly2.disturbing the wildlife3.using up natural resources4.higher ca
30、rbon emissions5.raising awareness of protecting local wildlife6.providing locals with a chance to experience other cultures.5.polluting inshore seawater6.destroying local ecological environment.NoImageNoImageNoImageWork in pairs.Talk about how the environment where you live has changed.Use the present perfect continuous tense where appropriate.Homework
