【正文】 a lot of air pollution,with the air contained gases ,dust, fumes or odors and harmful amounts. Yack! Would you be able to breathe easy in the place like that? 2 The ozone layer forms a thin shield between the earth and sun. It protects life on earth from the sun39。s ultraviolet or UV rays. In the 198039。s , scientist began finding clues that the ozone layer was disappearing. This allows more UV radiation to reach the earth surface. Too much UV can cause bad healthy affects, like skin cancer and eye damage. 3 All living things need water to survive,even people and ducks. So rain is very important. But not all rain is good for you. There39。s a special kind of rain called acid rain. And it39。s very dangerous. Acid rain es from pollution in the air, acid gas is from factories,cars and homes. Most of these acid gases are blown to the sky. And when they mix with the clouds,it can cause rain or snow,sleet,fog,mist or hail to bee more acedic. 4 Did you know that each day a person breathe about 35 pounds of air? And takes about 20000 breath? One way you can help keep the air clean for everyone is to take a bus ,bicycle and walk,instead of riding in a car. Unit9 The world we live inacid rain 酸雨acid snowocean coastlines automobile pollutionair pollutionsmog smoke fognoxiousstacksliningbloodstream血液livestock畜牧業(yè)contaminatesoileat up吞噬poverty貧窮overcrowdinggasesdustfumesodorsharmful amountsozone layerthin shield屏障ultraviolet紫外線UV raysUV radiationblow吹snowsleet雨夾雪fogmist薄霧hail冰雹acetic1.Look at all those dead fish, what do you think happened?Well, there39。s a factory outside town, that39。s pumping chemicals into the river.How can them do that? Isn39。t that against the law?Yes it a lot of panys ignore those laws.That39。s can we do about it?Well, one thing to do about it is to talk to the pany39。s management.What if that doesn39。t work?Well then , another way to stop them is to get a TV station to run a story on it.Yes ,panys hate bad publicity!By the way, what39。s the name of this pany?It39。s called A pex industry.Oh, uncle is one of their top executives!2.Wait a minute, before we do anything, shouldn39。t we make sure that we39。ve got our facts straight?Absolutely, the best thing to do is to monitor the situation over the next several weeks to see what exactly is happening.How do we do that?Well,we can take pictures of the river and even take water samples to see how bad the situation can get some friends to help.Okay,and maybe I could talk to my uncle about it.Oh no,I don39。t think that39。s a good idea,not yet,anyway.Why not?I don39。t think we wanna say anything to anyone until we have a clearer picture of what is going we39。ve monitored the situation for a while,then we can decide whether we need to have a meeting with a representative to tell them what we39。ve ,Calo?Ok.3. Kate: K: You know, you always hear about air pollution, but not many people are aware of the problem of water pollution. M: You mean in the oceans? K: No. I mean polluted drinking water. It’s a problem in almost every major city in the world. Almost all our rivers and lakes – where we get our drinking water from – are being polluted in some way by businesses farms, homes, industries, and other sources. And even though the water most of us drink is treated, it’s still not a100 percent pure. M: So what’s the solution? K: Well, it’s a plicated problem to solve, but basically what’s involved is treating all waste products more carefully so that dangerous chemicals and bacteria don’t get into our water supplyUnit 10 Learning to learn1.So,Linda,What have you been doing with yourself?Not much, oh,wait,that39。s not took this great dancing class last semester.Oh kind of dancing?We learned African dance and Samba.Wait,why would you want to learn African dance and Samba.It sounds exhausting.And it39。s not like you would dance that way in the clubs.Oh just for fun, you should try taking the class.You39。ll see that you learn more than just dancing.You also learn how to be more confident and how to interact better with other people.Em,I think with all that dancing around,I39。d be too exhausted to interact with anyone.2.So how did you enjoy your cooking course?It was great.What kinds of things did you learn to cook?Well it39。s a course on vegetarian cooking.I didn39。t know you39。re a vegetarian.Oh I39。m not.But a lot of people are these days.So I thought it would be useful to know how to make some interesting dishes without meat for times when I invite friends over for dinner.Em well I guess that make sense.Oh but we learn more than just cooking,they also taught us all kinds of useful thing about,you know,the health value of different kinds of vegetables and how to prepare them so that you don39。t remove all the vitamins they contain.So e..when39。s dinner?Unit 11 1.Work, in the future?Well I think unemployment is going to keep getting worse.I agree.As panys get more efficient and more puterize.They39。re finding ways of using less staffs.So I guess people will find it hard to get a good job unless they have excellent qualifications.Em yeah,I think that39。s probably true.But I also think that because of puters,more and more people will be telemuting instead of going into an office.Wow I39。d really love that.Can you imagine spending most of your work week in the fort of your own home?Personally,I would get so much more done and with ,instant messaging and video conferencing, you can still keep in touch with everyone you need to.Well I39。d certainly enjoy it,but I don39。t know if I get more done or not.I39。m afraid of I might just turn on the TV and zone out