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1、LESSON ONEPOPULATION PROBLEMSWHERE DO WE LIVE? Is it beautiful? Do you love it? What do people always call it instead of the earth? If she has problems, would you like to help her?THE WORLD IS FACED WITH MANY PROBLEMS. GOVERNMENTS SHOULD SOLVE:population growthThe problem of overcrowding in many cit

2、iesthe aging problemsin Africain Asiain EuropeFUTURE PROBLEMS Read the first paragraph and fill in the blanks. The world population is _ very _. In the last 40 years, the world population has _. By the year 2200, it will be about _ billion. Our cities will be much _. There will be more _ and more _.

3、 We will need more _ and other _. Therefore, we will have _ in the future, so we must change the way we use _ and natural _now. biggerfactoriesroadswaterserious problemsgrowingfastdoubled10natural resourcesenergyresourcesSECOND PARAGRAPH LISTEN AND FILL IN THE MISSING WORDS. _ of this is paper that

4、we can use again. _ average family in Europe or America throws away over _ ton of rubbish _ year, but we can recycle _ of it. If we recycle things, we can save_, _ and _.HalfAnoneeachmuchreusemore than money energyresourcesTHIRD PARAGRAPHLISTEN AND THEN ANSWER THE QUESTIONS:a. What will exist (存在) f

5、or hundreds of years?b. What pollutes the air, the land and the water?c. What can we do to reduce (減少) pollution?Plastics and chemicals We must stop using materials like plastics and chemicals. not disappearPlastics and chemicals FOURTH PARAGRAPHFILL IN THE BLANKS USING THE WORDS IN THE BROWN. the w

6、ays to, used up , available, less, fewer Coal and minerals, for example, will be _ some day. Other resources take a long time to grow, such as trees, or they may not always be_, such as water. We must learn to use _ energy and _ resources. We also have to find other ways to make energy. We can find

7、_ use the sun, the wind and the sea. used upfewerlessavailablethe ways toproduceuseableReal situationCause problemsFind solutionsNeed more water and natural resourcesThrow away millions of tons of rubbishStop using plastics and chemicalsMany natural resources cannot be renewed. Others take a long ti

8、me to growFast population growthChange the way we use energy and natural resourcesWaste things we can use againRecycleA lot of rubbish cannot be recycledPollute the air, the land and the waterWill be used up some day or may not always be availableUse less energy and resources or find other ways to m

9、ake energyPAIR WORK: READ THE MATERIAL AND COMPLETE THE TABLE:GROUP DISCUSSIONForm a group of four and discuss the main idea of each paragraph. You may find it helpful to use the first and last sentences of each group. Hint THE MAIN IDEA OF EACH PARAGRAPH 1234A. Plastics and chemicals cannot be reus

10、ed. Instead, they pollute the air, the land and the sea, so we must stop using them. B. Because the world population is growing, we will face serious problems. So, we must find out solutions. C. Many of the natural resources cannot be renewed, so we must find new ways to make energy. D. People throw away millions of tons of rubbish every year, but we can use much of it again. HOMEWORK1. Complete the exercise in WB.2. Recite reading text.3. Prepare for dictation.4. Listen to VOA special English on Population Growth http:/