课件17张PPT。Unit 2
Arnwick was a city with 200,000 people.Review看谁译得快：一百
一千
一万
十万
一百万
一千万
一亿
十亿
一百亿
一千亿
数十/百/千/百万one hundredone thousandten thousandone hundred thousandone millionten millionone hundred millionone billionten billionone hundred billiontens/hundreds/thousands/millions of抢答Read the following numbers.3/4198,556,201384,654,110,52652,859,456,1102/555,526,521,00010,584,564,14011,580,4128,594,526,438countryside field flat hospital
job office rubbish villageWork in pairs. Ask and answer the questions. Use the words in the box to help you.1. Why do people move to cities?
2. What are the problems of cities?Why do people move to cities?hunt for jobs make more moneylive a better lifePeople move to cities because they want to …What are the problems of big cities?heavy trafficpollutionlarge populationmedical resources shortagePara. 1Para. 3Para. 4Para. 5Para. 2 New problems.
The lesson we got from the story.
C. The old Parkville.
D. The new needs.
E. The changes in Parkville.Match the headings with the paragraphs.Fast ReadingCheck (T) the true sentences.Parkville was a quiet village.
Arnwick was a city with 20,000 people.
Arnwick now has a population of more than one million.
The local school in Parkville has 2,000 pupils.
Big cities need more money for public services.200,000A school in ArnwickTFTFT Para. 1The old ParkvilleCareful ReadingWhat was it like?Where did they live?It was a quiet villageThey lived in a small house close to fields and hills.
Para. 2 The changes in Parkville.In the past NowWhere:Near ArnwickPopulation:A city with 200,000 peopleWhy to move?Move to Arnwick to find jobsProblem: Need places to live Expensive to live in the city centresolve:built flats outside the centreWhere :Part of ArnwickPopulation:Over a million peopleProblem：Crowded , rubbish The small local school in Parkville is still open.
2. The new school is close to Jo’s home.
3.It takes an hour to get there by bus.
4. There is a lot of traffic and pollution in Arnwick city.closed down.far fromPara. 3 New problems.Read para. 3 and check whether the following sentences are true or false.FFTwasTPara. 4 New needs.Arnwick needs more schools, buses and __________. It needs fresh air, clean water, and better ______________. It needs more ______ to protect its people. And it needs ____________ to do all these things.Read para. 4 and fill in the blanks.hospitalspublic servicesmore money policePara. 5 The lesson we got from the story. Is Parkville a real place?
2. What does the writer want to tell us?No, it is just a story.Population increase is a big problem in big cities. Pollution, rubbish collection, traffic ... are the problems of cities. We should protect our Earth.Read para. 5 and answer the questions.RetellingCould it be your town?
The old ParkvilleThe changes in ParkvilleNew problemsThe new needsThe lesson we got from the storya quiet village
live in ...close to...near Arnwick ,a city with…
move to …to find …
need place to…
expensive to live …in the past:nowbuilt… become part of…
become…
crowded ,rubbishclosed down
far… by bus
traffic , pollutionneeds…needs…also needs… but ….needs…just …
…is a big problem ...
…are the problems of cities
. …protect… Many towns and cities have the same problems as Arnwick. People need places to live, so the (1) _____ government has to build more (2) ______. People need better bus and train (3) ________. They also produce more (4) _______, so the government has to make more efforts to protect the city against (5) ________. As we say, a thousand people make a (6) ________ problems!localflatsservicesrubbishpollutionthousandflat local pollution rubbish service thousandComplete the sentences with the correct form of the words in the box.Homework A+BA:1.熟读课文，完成导航课文理解
2.课文短语练会，完成导航1,2,3题
B:复述课文HomeworkA:1.熟读课文，完成导航课文理解
2.课文短语练会，完成导航1,2,3题
B:复述课文
