人教版英语必修5 单元3 课件Listening,speaking and writing.ppt

Listening _______ and ______ so that it can be used as ____ to water crops and provide clean ________ water. Everyone will put their ____ water in special tanks and _______ will have to go to the ____ in special places. ________ will clean this dirty water so it can be used _____. If people live on Mars, they may become ____ or _______. (1) How can “Wonderworld” make sure there is enough oxygen? “Wonderworld” will provide a covered area for people to live in with special air supply. (2) How can “ Wonderworld” make sure there is enough water? “ Wonderworld” will make sure there is enough water by collecting some from under the planet’s surface. After use, this water will be cleaned and recycled so that it can be used as rain to water crops and provide clean drinking water. Everyone will put their dirty water in special tanks and animals will have to go to the toilet in special places. Bacteria will clean this dirty water so it can be used again. (3)What is the advantage of living in “Wonderworld”? People may become rich or famous. (4) Do you think people will be healthy living in “Wonderworld”? Why? I think the people will be quite healthy as they have a satisfactory climate, enough water and sufficient accommodation to live comfortably. Suppose that…. I wonder if …. I imagine that …. I’m sure…. Perhaps/Maybe/ Possibly…. Most likely…. Probably…. Do you imagine that….? Is it likely/ unlikely that ….? Is it possible that ….? Do you suppose that ….? Sample dialogue S1: What problems do you think our hometown will have 1000 years in the future? S2: Is it possible life will be better than it is now? S1: Yes, of course. Probably everyone will be more comfortable. They’ll be provided technological improvements and the robots. S2: Oh I see. Is it possible that people will have solved the problems of today- global warming, air and water pollution, etc? S1: Most likely they will. For