4.6《Unit4　Writing》课件（人教版－选修6）.ppt

人教版课件系列;Writing ; READING TASK;Cigarette butts are small but bad for the environment: over 1,600 billion cigarettes are smoked each year and large quantities of butts are thrown away; Butts contain toxic chemicals; Decrease the quality of water; Endanger plants and animals.; Plastic bags litter is a danger to the environment: Waste of non-renewable resources; Last from 20 to 1,000 years in the environment; Kill up to one million seabirds, 100,000 sea mammals and countless fish every year . ;Tom’s solutions: 1) Put them in the rubbish bin. 2) Not to let plastic bags become litter. 3) It would be better if they used fewer. 4) Recycled them. 5) Not to smoke. 6) Not use plastic bags at all. ;Answer key for Exercise 2 (P67);Paragraph II ; Paragraph II; Paragraph III ; Paragraph III ; Paragraph III ; Paragraph III ; Paragraph IV ;Writing Task (P67) Writing tips: Step 1: Write out the thesis statement. (point of view) Step 2: Write out the topic sentence of the first body paragraph. Step 3: Give the supporting points and details about the first subtopic.; Step 4: Write out the topic sentence of the second body paragraph. Step 5: Give the supporting points and details about the second subtopic. (more body paragraphs ... ) ;● Now choose a topic from the below list that you feel strongly about. Make notes on your topic using headings similar to those in the table above. Use Toms essay as a model to write your own.;A sample list of environment topics: air pollution, noise, soil erosion, water pollution, litter classification, desertification, make green by planting trees;A sample version: The Environmental Effects of Fossil Fuels There is no doubt that fossil fuels bring a lot of good to us. But do you know that many of the environmental problems our country faces today result from our fossil fuel dependence.; The environment faces air pollution, global warming, acid rain, and several other very serious problems because of our use