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1、UNIT1 Our Earth Track 4-1-1&4-1-2 Blake:What are you working on,Mary Mary:Im finishing my paper.Its due tomorrow,Blake.Blake:Whats the topic Mary:Its about Greenland.Blake:Greenland.Hmmm.thats part of Canada,right Mary:I think you need to study your world geography,Blake.Blake:Well,isnt it near Cana
2、da Mary:Yes,its off the coast of northeast Canada,but its part of Denmark.Blake:Oh,I didnt know that.Well,whats your paper about exactly Mary:In my paper,I answer the question Is Greenland really green In other words,is Greenland covered by a lot of plants and trees Blake:Is it Mary:What do you thin
3、k Blake:Lets see.Greenland is in the Arctic Circle-way up north.Its cold,.so Is Greenland really green Id answer probably not.Mary:Youd be correct.Its too cold there.In the north,a lotof the ground is frozen.The summers are short,so only the surface thaws.Blake:That sounds tough.Mary:Its hard for th
4、e construction industry.Its not easy to build in Greenland.Blake:It sounds so harsh.Why would anyone want to go there Mary:There are big mountain ranges on the coasts.Theyre great for hiking and outdoor sports.And there are lots of animals there.You can sometimes see whales swimming in the harbors.B
5、lake:That sounds cool!OK,so if its not really a green place,why was it named Greenland Mary:The first settlers wanted to attract other people.They gave it an attractive name.Track 4-1-3 Bart:So what exactly did you do over the summer Gustav:We worked as volunteers at Glacier National Park Bart:Ive n
6、ever been there.Whats it like Carolina:Its beautiful.There are mountains and lakes.and,of course,glaciers!Bart:How was the job Gustav:We had to do a lot of physical work.It was kind of hard.Carolina:Thats true,but it was exciting,too!We actually saw bears!Bart:Wow!That does sound exciting.Maybe I sh
7、ould apply.Ill need a job next summer.Carolina:Sorry,Bart,but you cant apply to that program.Its a special program for international students.Track 4-1-4 1.Mt.Fuji is really beautiful from far away.When you climb it,its just rocks and dirt.but its really beautiful from far away.2.Last year I was in
8、San Francisco and I had a chance to drive across the Golden Gate Bridge.What an amazing feat of engineering.It gives you a chance to look through all of San Francisco and over San Francisco Bay and its just a wonderful chance to see the city.Track 4-1-OL-1&4-1-OL-2 Jay:Come in here,Elise.You should
9、see this show!Elise:What is it Jay:Its called The Titanic of the Sky.Its about the Hindenburg,a great engineering feat.Elise:The Hindenburg.Jay:You know,that giant zeppelin that crashed in people died.Elise:Oh yeah,I remember now.It was flying from Germany to the United States.It crashed as it was l
10、anding.Jay:Right.Its so funny looking,dont you think It doesnt look anything like the airplanes we have today.Elise:Thats true.Why would people ride in a zeppelin anyway It seems so dangerous.Jay:Well,some people called the Hindenburg mans greatest achievement in flight.They thought it was safe,I gu
11、ess.Elise:Who rode in it anyway Jay:Mostly wealthy people.It accommodated between 30 and 40 passengers and crew.One person said it was like a flying hotel.Elise:It sounds pretty great.Jay:Yeah,and it was fast.Thats why people rode it.They wanted to get to their destination faster.Elise:Why didnt the
12、y just take a jet plane Jay:Elise!You know they didnt have jets back then.Look,in 1934 it took five days to travel from Germany to the.by ship.The zeppelin could do it in half that was speedy.Elise:Well,maybe Ill sit down and watch a little bit.Maybe Ill learn something.Track 4-1-OL-3 Jack:I think w
13、e should buy a bigger car.Big cars are safer.Kayla:Yes,but on the other hand,they consume more oil.Jack:They also look really cool.Kayla:Thats true,but there are some SUVs which are not big but also very beautiful.Jack:And I think big cars are more fun to drive.Kayla:But then again,its very expensiv
14、e.Jack:Well,lets get more information about several kinds of cars,okay Track 4-1-OL-4 My country has two very famous buildings called the Petronas Towers.The buildings are made of glass,steel,and concrete.They were designed by an American architect,but he used a Malaysian style.They were finished in
15、 1998,and they were the tallest buildings in the world at that time.Each tower has 88 floors,and is 452 meters high.I really like the Petronas Towers.They show both the modern and the traditional side of my country Track 4-1-OL-5&4-1-OL-6 Modern buildings:We love them,We hate them The world-famous L
16、ouvre Museum in Paris is almost 500 years old,and it faced a very modern problem:There simply wasnt enough space for six million visitors each year.In 1989,American architect.Pei designed a striking glass pyramid in the buildings center to be a visitor entrance and shopping arcade.But he also starte
17、d an angry debate.Some people felt his glass building was a piece of art,like the ones inside the museum.Others said it was just an ugly,modern mistake.Kyoto,Japan,is the countrys ancient capital,and the heart of its culture.Its railroad station was too small for the millions of visitors.In 1997,the
18、 city completed a new station in a huge shopping center,right in the oldest part of the city.Designed by Hiroshi Hara,the building also contains a hotel and department store.Before it was built,critics said that the high,wide,modern building would destroy the citys traditional look.On the other hand
19、,supporters said it would bring new life into the city center.Track 4-1-OL-7&4-1-OL-8 The future building boom Interviewer:What do you think is the biggest problem facing our cities Erika:I think its overcrowding.Talk to anyone living in a major metropolitan area and they will say the same thing;The
20、res no space.Even the suburbs are getting crowded.Interviewer:Well,in some places there simply isnt any land left for building,right Erika:Yes,thats true,but you have to think creatively.You cant give up so easily.Interviewer:Think creatively What do you suggest Erika:What Im saying is that we can b
21、uild more structures underground.We can add parking lots,malls,hotels,and even apartment s plenty of space.Interviewer:Isnt it expensive Erika:Yes,it can be.In the past building underground has been very expensive.However,we have new technology that will bring the cost down.It involves using robots.
22、You dont have to pay robots a salary!Interviewer:Isnt building down more dangerous than other kind of construction Erika:Actually,I think its safer than building skyscrapers,for example.Remember,we already do it.We have subways and underground shopping malls.Im just suggesting we invest in a variety
23、 of bigger projects and that we dig deeper.Interviewer:What would you say to people who doubt your idea Erika:I can understand their feelings.Whenever theres a new idea,it can cause controversy.But building down is not some kind of impractical idea.It makes sense.There is so much space underground:I
24、t can accommodate a lot of traffic,storage,and people.With the new technology we have,wed be crazy not to consider the idea-its the wave of the future!UNIT2 Track 4-2-1&4-2-2 Situation 1 Man:Oh no!Woman:What happened Man:I cant believe it!I was sending a message and I accidentally clicked on Reply t
25、o All.Woman:So Man:It was a personal message for my friend,Jerry.I wanted to send it to his e-mail address only.Woman:Oops.Man:Exactly.Instead I sent it to everyone on the embarrassing!Situation 2 Man:I see you have a new keyboard.Thats nice.Woman:Yes,the company bought me a new one.Man:Thats good.W
26、oman:Well,actually.I spilled coffee on my old keyboard,and it stopped working.Man:Oh,I see.Woman:Dont tell anyone.Drinking coffee near the computers is not allowed!Situation 3 Woman:Have you finished working on my computer Man:Yes,I have.Im afraid I dont have good news for you.Woman:Really Man:Reall
27、y.The problem is with your hardware.Woman:Oh.What do you suggest Man:I think you should probably buy a new computer.This one cant be fixed.Woman:Well,I have had it for five years.Its time to replace it,I guess.Track 4-2-3 Lea:I hate writing term papers!It takes forever!Steve:Youre lucky,Lea.When I w
28、as young.Lea:Oh,Ive heard this story before.Steve:Well,when I was young,we didnt have computers.We used to write our papers on typewriters.Lea:Oh,really That sounds difficult!Steve:It was,especially because I made a lot of mistakes.Lea:Did it take a long time Steve:Yes.Computers are so much faster a
29、nd easier to use.Track 4-2-4 like the laptop because its very,very thin.Its maybe less than one inch and its about four pounds and I can carry it anywhere I want.favorite feature of my computer is the Instant Messenger.The reason for this is that its very affordable,fun and convenient and allows me
30、to chat with my friends from all over the world.Track 4-2-OL-1&4-2-OL-2 Pam:Well,Lynn,I must be going.It was great to see you Lynn:By,Pam.Pam:Whats that Lynn:Oh thats Ollie.Pam:Ollie:I didnt know you had a dog!Lynn:Well,we dont really.Pam:What do you mean Lynn:Come here.Pam:Oh my goodness.Its a robo
31、t!Lynn:Thats right.Its a dog robot.They call it a“dogbot.”Pam:How interesting!But its a little strange,dont you think Lynn:Well,I wanted to get an interactive toy for the kids.They love it.So Im happy.Pam:How much did it cost Lynn:Dont ask.It wasnt very affordable.Its cheaper than having a real dog,
32、though.We dont ever have to buy dog food!And the batteries are rechargeable.Juliana:Hey,Henrik.Look.Henrik:What is it,Juliana Juliana:Whats that guy doing over there Henrik:Which guy Juliana:The one over there.Wearing a suit.Hs punching so many buttons on his cell phone.Henrik:Oh,him.Hes probably pl
33、aying a game.Juliana:Really Henrik:A lot of people have games on their cell phones.Its really popular here in Finland.They play them everywhere.Juliana:Do you play them,too Henrik:Yes,I do.Juliana:I only use my phone to make telephone calls.I guess Im old-fashioned.Henrik:I heard that some people pl
34、ay games even at work.They can play quietly during business meetings.No one knows about it.Juliana:Id like to try it.Henrik:Here,use mine!Track 4-2-OL-3 Penny:Hello.Your Computer World sales department.Ted:Hi,Penny.Its Ted.Penny:Oh,hi,Ted.Whats up Ted:well,my computer has crashed again.Penny:Oh no!T
35、ed:Oh,yes.Thats why Im calling.You know,its five years old.And I need to speak to Scott about getting a new one.Penny:well,youve called at a good time.We have some attractive new models.Ted:Great!Im looking for something affordable.And I want to get something portable this time.Penny:Im sure Scott c
36、an help you with that Lets see,he is in a meeting until 3:30.Ill ask him to call you.Ted:No,thats OK.Ill call him after 3:30.Please give him the message.Track 4-2-OL-4 E-mail is my favourite way to communicate.I think it is as fast as a fax machine,and it is as easy as a cell phone.Of course,e-mail
37、has some problems,too.It isnt as affordable as ordinary mail,because you need a computer and Internet service.And I dont think it is as reliable as a fax machine.Sometimes e-mail messages get lost.But in my opinion,e-mail is as convenient as a cell phone.I can send a message from my home or office,a
38、nd my friends can read it when they have time.Track 4-2-OL-5&4-2-OL-6 In todays report,we look at a new technology called pervasive computing.Pervasive computing means putting tiny computers into everyday electronic appliances,such as toasters and microwaves.With pervasive computing,appliances can c
39、ommunicate with their users and with other appliances!Some companies now sell pervasive computing products like a“smart”toaster.It remembers your favourite kind of toast:light or dark.Companies are designing a“smart”coffee maker and a“smart”clock.The coffee maker can measure the water and coffee.It
40、can even put milk in your breakfast coffee and make black coffee in the afternoon.The clock will check the time on other clocks in your house,and give information about other appliances.For example,it can tell you,“Your coffee maker needs more water.”And thats only the beginning.One company is now a
41、dvertising“Save time phone your washing machine!”engineers are making a“smart”house.In this house,the lights,heater,and air conditioner change automatically when family members come home.This makes the home comfortable,and it saves a lot of energy.Pervasive computing could change many parts of our d
42、aily lives.But do people really want pervasive computing Do they really need technology everywhere One company asked people about their opinions on“smart”appliances.There were surprises.A“smart”refrigerator can buy more food on the internet,but people didnt want it,because it might make mistakes.“Pe
43、rvasive computing is as important as a telephone,”says Rebecca Blair,president of InnoTech Corporation.But some of these products are not useful,or even practical.Companies should learn more about the technology that people really want.Track 4-2-OL-7&4-2-OL-8 Local girl rescued She may have a broken
44、 leg,but she cant be happier.Morgan Bailey,11,is happy to be alive.Tuesday was like any other day for Morgan.She was at school.It was fourth period,and she was the first student to arrive in the gymnasium for her physical education class.Suddenly there was a loud noise.“There was a sharp cracking no
45、ise and then a loud boom.After that,I dont remember anything,”said Morgan.The roof of the gymnasium had collapsed under the heavy snow.Morgan was trapped underneath.She couldnt escape.“I woke up and there was a big piece of wood on my leg.I couldnt move it.I was starting to get cold.”Fortunately,hel
46、p was nearby.A new program using“rescue robots”was tried for the first time.“We were nervous about using the robot,”said Derrick Sneed,the man in charge of the program.“But in the end,the robot gave us reliable information.It went extremely well.”The rescue robot was able to go into the gym and loca
47、te Morgans exact position.“We send in robots first because it may not be safe for humans,”said Mr.Sneed.“Human beings are not as useful as robots in some situations.A gas leak,for example,could kill you or me but wouldnt hurt a robot.”Although it didnt happen in Morgans case,some rescue robots can b
48、ring fresh air or water to people who are trapped.Rescue robots go into rough,dangerous places.They work in life or death situations.They have to be durable.Doctors say that Morgan is doing well.She should be going home in two or three days.What is the first thing she wants to do after she gets out
49、of the hospital “I want to meet my hero,”laughs Morgan.“That little robot that saved my life!”UNIT3 Track 4-3-1&4-3-2 Conversation 1 Woman 1:What are you watching Woman 2:Oh,just the news.Woman 1:Can I change the channel Woman 2:In just a minute.I want to see the end of this report.Woman 1:I didnt k
50、now you were interested in the news.Woman 2:Well,its Christiane Amanpour.Shes really great.She usually reports from London-the city where she was born.Woman 1:I dont know her.Woman 2:Shes an international correspondent.She goes to some really dangerous places.When theres a war,shes usually there.Wom