1、Unit 1 The Changing WorldUnit 1 The Changing World Topic 3 The world has Topic 3 The world has changed for the better.changed for the better.Section ASection A Guess I have a twin sister,We are the same,We open in the morning,We close at night,We are in the face,What are we?现在完成时表示过去发生的某一动作对现现在完成时表示
2、过去发生的某一动作对现在造成的影响或结果。在造成的影响或结果。结构是：助动词结构是：助动词_/_+动词的动词的_。标志词：标志词：1)从不从不_；2)曾经曾经_；3)刚刚刚刚_；4)已经已经_；5)仍然，还仍然，还_；have has过去分词过去分词nevereverjustalreadyyet一一.用给出的词填空。用给出的词填空。have been to have gone to1.I Italy three times.2.Lily is not here now.She the railway station to meet her mother.ever never already y
3、et just1.you watched the film?你曾经看过这部电影吗？你曾经看过这部电影吗？2.He had his meal他刚吃过饭。他刚吃过饭。3.Mary been to the Great Wall.玛丽从未去过长城。玛丽从未去过长城。4.They started 他们还没有动身。他们还没有动身。5.The plane arrived.飞机已经来了。飞机已经来了。have been tohas gone toHave everhas just has never havent yethas already I have waited for you for two hou
4、rstwo hours.=I have waited for you since two hours agotwo hours ago.=I have waited for you since nine oclocknine oclock.I have studied in the school I have studied in the school for for two two yearsyears.=I have studied in the school=I have studied in the school since since two years agotwo years a
5、go.=I have studied in the school=I have studied in the school sincesince 20132013.=I have studied here=I have studied here sincesince I came to I came to the school.the school.presentpast20132015for two yearsstudied in the schoolpresentpastI have studied in the school for two two yearsyears.for+时间段时
6、间段20132015I have studied in the school since two years ago.since two years ago2013presentpastsince+时间段时间段+ago2015I have studied in the school since 20132013.since 2013studied in the schoolpresentpastsince+时间点时间点I have studied here since I came to the I came to the school.school.since I came to the s
7、choolcame 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）I have studied in the school I have studied in the school for for two two yearsyears.=I have studied in the school=I have studied in the school since since two years agotwo years ago.=I have studied in the school=I have studied in the school
8、 sincesince 20132013.=I have studied here=I have studied here sincesince I came to I came to the schoolthe school.for+for+时间段时间段since+since+时间段时间段+ago+agosince+since+时间点时间点since+since+从句从句3 Look carefully and think about the differences between since and for in 1a.Then complete the sentences with si
9、nce 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 term began.forforforsincesincesince n.化学化学n.学期学期Beijingin the past nowadays What took place in New York?三写出下列词组意思三写出下列词组
10、意思 已经在某个地方已经在某个地方 习惯于习惯于 事实上事实上 街道街道 去参观，去访问去参观，去访问have/has been inget used toas a matter of factblockcome for a visitAs a matter of factAs a matter of fact/In fact,In fact,Lucy is good at dancing.Lucy is good at dancing.As a matter of fact/In fact,I am strong.as a matter of fact as a matter of fact
11、=in fact=in fact1b 1b Listen to 1a and tick what was mentioned 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 resta
12、urants四读四读P17 P17 的的1a 1a 判断对错（判断对错（T or FT or F）1.Helen has been in New York for a long time.2.There are many excellent restaurants in New York.3.Bob doesnt like New York at all.4.The streets were dirty in the past,but they arent at present.5.You can go to plays,concerts and operas only at weekends
13、.6.Bob invites Helen to see New York for herself.五五.根据提示，补全句子根据提示，补全句子 1.I _(过去经常起床）过去经常起床）late,but now Ive_ (习惯于起床）习惯于起床）early.2.Can you park in that_?(街区街区)3_ _ _ _ _(事实上事实上)，I think Hong Kong is a wonderful place to travel.4.It is important to learn _(化学化学).5.Are there any exams at the end of _?（
14、学期）（学期）used to get upgotten used to getting up blockAs a matter of factchemistryterm六六.用用 for 和和since 填空填空:1.I have been in Beijing_ three years.2.I have taught English _ I came here.3.Whats wrong with you?I havent seen you _last Sunday.4.Its three weeks _ I left Beijing.5.We have built many factori
15、es _1990.6.He has had a car _two months.7.She has helped homeless people _a few years.forsincesincesincesinceforfor七七.单项选择单项选择1、He has _ been to Shanghai,has he?.already .never .ever .still2、Zhao Lan _already _in this school for two years.was;studying .will;study .has;studied .are;studying3、We _ Xia
16、o Li since she was a little girl.know .had known .have known .knew 4、Harry Potter is a very nice film.I_ it twice.will see .have seen .saw .see5、-Do you know him well?-Sure.We _ friends since ten years ago.were .have been .become .made6、My parents _ Shandong for ten years.have been in .have been to
17、.have gone to .have been7、_ has Mr White been a member of Greener China since he _to China?A.How soon,comes B.How often,got C.How long,came D.How far,arrived八八.句型转换句型转换1、The old man _ last year.He for a year.(die)（动词填空）（动词填空）2、This factory opened twenty years ago.(同同义句转换义句转换)This factory for twenty
18、years.3、Miss Gao left an hour ago.(同义句转换同义句转换)Miss Gao _ _ _ _ an hour ago.diedhas been deadhas been openhas been away since4、Her mother has been a Party member for three years.（同义句）（同义句）Her mother _ the Party three years _.5、They moved to France two years ago.(同同义句转换义句转换)_ _ two years _ they moved
19、to France.6、The bus has arrived here.It arrived ten minutes ago.(把两个句子合并成一个句子把两个句子合并成一个句子)_joinedagoIt is sinceThe bus has been here for ten minutes.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_
20、 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 the 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 Broad
21、way._,Broadway stands for the American theatre industry.sinceused totheaterswonderfulAs a matter of fact has improvedn.艺术家艺术家n.参观者参观者n.产业，工业产业，工业theater 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
22、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millions of 用法：用法：在英语中在英语中hundred,thousand,million,billion等词，当其前面等词，当其前面有数词有数词时，它们不加时，它们不加“s”使使用，其后也不用介词用，其后也不用介词of.直接跟可数名词的复直接跟可数名词的复数形式。数形式。如：如：five million people 五百万人五百万人 当表达当表达不确定数字不确定数字时，在它们后面加上时，在它们后面加上“s”再加介词再加介词of使用。后接可数名词的复数形式
23、，使用。后接可数名词的复数形式，表示表示“数百数百”“数千数千”“数百万数百万”“数十数十亿亿”。如：。如：millions of people 数百万人数百万人like this:I have been in for/since It is I really like living there.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
24、 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.Then 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
25、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 Section A in your workbook.4 Work in groups and talk about the place you live.Compare todays situation with that of the past.The following dialogs may help y
26、ou.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:1c Work in pairs and describe New York to your partner based on 1b.You may start like this:A:How much do you know
27、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:Complete the sentences with since or for.1.You have been in New York _ a long time.2.The city has improved a lot _ I came here a few years ago.forsince8.His father has been dead _ he was ten years old.9.Michael has been away from the army _ six years.10.He has been in Chongqing _2003.11.My brother has had a car _ two months.12.Tom has kept a book _ 5:00 a.m.sinceforsinceforsince
