【倍速课时学练】2015开学备课（冀教版）八年级英语下册教学课件：Lesson 38.pptVIP

倍速课时学练 倍速课时学练 LESSON 38 THE WORLD IS A BIG PLACE How many continents are there in the world? What are they? What do you know about the place where you live? Task-based Reading 1. What is the problem the earth faces? 2. People can live on the seven continents. ( ) (判断正误) 3. How much of the world is covered with land? 4. What is largest part of the ocean ? 5. It must be treated well for our chidren and for our childrens children, too. ( Translate) The population is increasing very quickly. F One third . The Pacific Ocean. 为了我们的子孙后代我们一定要善待地球。 in total on the earth in the futurebe covered with be treated well Once the world ______________ green plants and the living things led a peaceful life____________. However, later some animals__________________ and was even killed for money. There are not many_______. Luckily, people are trying to save the animals in danger now. We all hope that all the living things will live a pleasant life as before _____________. was covered with on the earth were not treated well in total in the future The earth is our home. We must take care of it. Life today is easier than it was __1__ years ago, but it has brought some new problems. One of the biggest problems is pollution. We can see it, smell it, drink it and even hear it.Man has polluted the __2__. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so __3__ people. When the land was used up or the river was not clean in a place, man went to __4__ place. Now man is slowly polluting the whole world.__5__ pollution is still the most serious, it’s bad for __6__ things in the world. Many countries don’t let people burn __7__ for air in the houses and factories in the city. Pollution by SO2 is now the most dangerous kind of air pollution. It’s caused by heavy traffic. People say it’s __8__ to ride bikes. When you are riding, there is no pollution. But even in developed countries, most people don’t go to work by bike. It’s