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1、Unit 1 The Changing World Topic 3 The world has changed for the better.Section A -How long have you studied in our school?since I was 132015presentpastsince+从句（从句谓语动词用过去式）从句（从句谓语动词用过去式）-I have studied here.since 2015.since I was 13.since two years ago.since+时间点时间点since+时间段时间段+ago现在完成时（现在完成时（III）e.g.
2、She has worked in the school _.since 19951995presentpastsince+时间点时间点since 1995e.g.He has waited for Tom _.since two hours ago8:00presentpastsince+时间段时间段+ago10:00since two hours agopresentpaste.g.He has lived here _.since he was a little boysince he was a little boysince+从句（一般过去时）从句（一般过去时）e.g.I have
3、been in the new school _.for a weeklast weekpresentpastfor+时间段时间段for a weekI have worked in the school for three years.=I have worked in the school since three years ago.=I have worked in the school since 2011.=I have worked here since I came to the school.for+时间段时间段since+时间段时间段+agosince+时间点时间点since
4、+从句从句3 Look carefully and think about the differences between since and for in 1a.Then complete the sentences with since or for and listen and check.1.I have lived in Beijing _ three years._2011.2.He has waited for Tom _ two hours ago._ two hours.3.We have learned chemistry _ one month._ the new ter
5、m began.forforforsincesincesince n.化学化学n.学期学期since从句从句(一般过去时一般过去时)过去时间过去时间点点一段时间一段时间+agofor+一段时间一段时间Thepresentperfect(现在完成时现在完成时)III现在完成时的现在完成时的持续性用法持续性用法：表示表示过去某一时间开始并一直持续到现在过去某一时间开始并一直持续到现在的动作或状态。的动作或状态。该用法中的动词多为该用法中的动词多为_，常见时态标志词，常见时态标志词有有since和和for。延续性动词延续性动词1.Hisfatherhasbeendead_hewastenyearso
6、ld.2.Michaelhasbeenawayfromthearmy_sixyears.3.HehasbeeninChongqing_2003.4.Mybrotherhashadacar_twomonths.5.Tomhaskeptabook_5:00a.m.sinceforsinceforsinceFillintheblankswith fororsince.He has died for three years.He has been dead for three years.Jane has been here since 1999.Jane has come here since 19
7、99.现在完成时的现在完成时的持续性用法持续性用法：表示表示过去某一时间开始并一直持续到现在过去某一时间开始并一直持续到现在的动作或状态。的动作或状态。该用法中的动词多为该用法中的动词多为_，常见时态标志词有，常见时态标志词有since和和for。1.-Have you_ been to Beijing?-Yes,I have.I have _ come back.-No,I havent.I have _ been there.2.-How long have you been in Beijing?-I have been there there_ two weeks.-I have be
8、en there _last week.everjustneverReview(never;ever;just;since;for)forsinceWho can describe Beijing?In the past Nowadays Statue of LibertyBroadwayAsamatteroffact/Infact,NewYorkisnotsobeautifulinthepast.as a matter of fact=in fact实际上实际上What took place in New York?1b Listen to 1a and tick what was ment
9、ioned about New York.In the past p terrible traffic p dirty streets p unfriendly people p dangerous to live p less shopping centers Nowadaysp beautiful parksp clean and fresh air p huge markets p famous museums p good schools p excellent restaurants1a Listen,look and sayKeypoints1.You havebeenin New
10、 York foralongtime.(1)have/has been in.表示到目前为止状态的持续(2)for与表示一段时间的词组连用，句中谓语动词通常用延续性动词（否定句除外）sb.have/has been in.某人一直在某人一直在for a long timecame to New Yorkpresentpast2.How do you like living there?=What do you think of living there?3.and almost everyone drove too fast.drive-drove drivendrvdrvn4.will ge
11、tusedto it very soon if you come.be/get used to+doing/n/pron.习惯 他已经习惯了新的校园生活。He has _ used to the new school life.if you come 主将从现 如果明天不下雨我将去钓鱼。(2017福建中考)I _ go fishing if it _ rain tomorrow.5.They usedtobe,but the city hasimproved a lot since I came here afewyearsago.been/gotwill doesntused to be/d
12、o 过去是/过去做 .,but the city has improved a lot since I came here a few years ago.since I came here a few years ago came herepresentpastsince+从句从句（从句谓语动词用过去式）（从句谓语动词用过去式）6.You must comeforavisit.你一定要来参观一下。7.Then you can see New York yourself.然后你可以亲自来看一下纽约。1c Work in pairs and describe New York to your p
13、artner based on 1b.You may start like this:A:How much do you know about the traffic in New York?B:I heard that the traffic there was terrible.Do you have any ideas about the streets there?A:B:What about the local traffic there?A:.B:Isnt it dangerous to live there?A:.on the phone=I heard that我听说get/b
14、e used to doing/n./pron.(代词)as a matter of fact=You will get used to it very soon if you come.a wonderful place to live.go to+n.去做某事You must come for a visit.Then you can see New York yourself.see sth.yourself.动词不定式充当定语，与修饰词之动词不定式充当定语，与修饰词之间往往有动宾关系间往往有动宾关系over the phonein fact强调强调“亲自亲自”,是自己去看是自己去看Re
15、viewReviewThe artist will give us a speech at the beginning of this schoolterm.tst艺术家艺术家tm学期学期Every summer,millionsof visitors come to the seaside to enjoy their holidays.vzt 游客millions of peopletwo million peoplemany/several millions of peopleSanming is famous for its chemistryindustry.kemstr化学化学nd
16、str工业工业2 Listen to the passage and fill in the blanks with the correct forms of the given words or phrases.Broadway is a street in New York.It has been there_ 1811.It _ be dirty.But it _ since the 1920s.The area near Times Square is the home of Broadway theaters.There have been many famous _ along t
17、he street for many years.A lot of artists perform plays,concerts and operas there.Every year millions of visitors come to enjoy the _ music and dance on Broadway._,Broadway stands for the American theatre industry.sinceusedtotheaterswonderfulAsamatteroffact hasimprovedn.艺术家艺术家n.参观者参观者n.产业，工业产业，工业the
18、ater used to improve wonderful as a matter of fact sincen.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.艺术家艺术家n.产业，工业产业，工业n.产业，工业产业，工业n.参观者参观者n.参观者参观者4 Work in groups and talk about the place you live.Compare todays situation with tha
19、t of the past.The following dialogs may help you.A:I have been in for/since B:How do you like living there?A:It is /Very good./I really B:Was the local traffic terrible/good/?A:Yes./No,it was /used to be in the past,and now it is B:like this:I have been in for/since It is I really like living there.
20、It used to be in the past,and now it is Summary:1.Some words:block,artist,visitor,industry,chemistry,term2.Some phrases:as a matter of fact,millions of 3.Some sentences:1.You will get used to it very soon if you come.2.As a matter of fact,its a wonderful place to live.3.You must come for a visit.4.T
21、hen you can see New York yourself.Use the Present Perfect Tense with for and since.1.You have been in New York for a long time.2.The city has improved a lot since I came here a few years ago.HomeworkHomework2.Make five sentences,using for and since.1.Read 1a aloud.4.Preview Section B.3.Finish Sectio
22、n A in your workbook.Thank You!Present Perfect(II)I have _ called you.Ive _ been there_.China has _ carried out the one-child policy to control the population.Have you found him _?Have you _ been to the cinema nearby?justneveralreadyyeteverbeforeI really _ going to a place like that._ do I.hateSo So
23、+be/情态动词情态动词/助动词助动词+主语主语 Neither/Nor+be/情态动词情态动词/助动词助动词+主语主语Read through Sections A-C and fill in the blanks with the correct words.It is increasing _ 80 million every year.by6800808080increaseby增加了增加了increaseto增加到增加到 the population in developing countries is _ that in developed countries.larger thanChina _ the largest population in the world,and about one _ of the people in the world live in China.hasfifthone sixthtwo ninthsseven twentieths_ to the policy,China is developing quickly and Thanksthe one-child policythe one-child policy