Unit+3+Workbook 高中英语人教版（2019）选择性必修第三册.pptx

2019人教版选择性必修三 三单元 拓展阅读1Unit three Workbook Reading and Writing Small Waste,Big Problem阅读简案Fast Readingr1.What do think of the title?2.Mark each paragraph with a number.3.Read through the passage and decide the structure of it.para 4para 3para 2para 1Detailed ReadingMain idea of each paragraphpara 1 para 2para 3para 4Small pieces of litter can be harmfulCigarette butts are bad for the environmentPlastic bags are bad for the environmentTo deal with the problem of small waste Detailed Readingpara 11.Why are small waste so harmful?2.Recite this sentenceWith the growing use of plastic bags and the rising number of smokers,there is more litter being produced than ever before.With the growing use of plastic bags and the rising number of smokers,there is more litter being produced than ever before.Detailed Readingpara 21.In what way are cigarette butts are harmful?Give supporting evidenceThey are in large numbers.They spoil the beauty of the environmentThey contain toxic chemicalsThey pollute water and endanger plants and animals.They are hard to break down.Detailed Readingpara 22.Read and Recite the following sentenceCigarette butts can take up to 25 years to break down,and the toxic chemicals add up to a large amount with so many littered.3.How to reduce the harm of cigarette buttsDispose of them properly in a rubbish binDetailed Readingpara 31.In what way are plastic bags are harmful?Give supporting evidenceThey travel long distancesThey kill many birds,mammals,fish,and sea animals each year worldwideThey are hard to break down2.How to deal with the pollution of plastic bags 3”R”=reduce,reuse,recycleDetailed Readingpara 33.How to reduce the use of plastic bags?Charge for them4.Explain the phrase“bag-for-life”scheme Use stronger plastic bags that can last long f broke,they will be replaced for free.Detailed Readingpara 4What is the best way to save the environment?_ saves money spent on disposing of litter properly.However,it would be better _Not littering at all or cleaning up“small waste”not to smoke or use plastic bags at all.Language Points1.After all,if it is so small,it cannot possibly be that harmful,cant it?that adv.非常；那么地ex.Is your problem that complicated?你的问题非常复杂吗?Translation:你不需要很认真地接受他的话。如果你相信美好事物的存在,那么生活就没有那么糟糕。You neednt take what he said that seriously.Life isnt that bad if you just believe in its beauties.Language PointsSentences to recite2.They are easily blown by wind and float in water,so.float v.（使）漂浮，（使）浮动Can you float on your back?你能仰浮吗？drift v.飘移，漂流The boat drifted down the river.船顺水漂流而下。Fill in the blanksIf its made of wood it will _.As children grow up,they _away from their parents views.floatdriftLanguage Points1.give a second thought to sth2.drop litter3.not possibly4.the growing use5.the rising number so smokers6.cigarette butts7.spoil the beauty of the environment8.contain toxic chemicals9.find ones way into 10.water supply11.affect water quality12.break down1.再考虑一下2.乱扔垃圾3.不可能4.越来越多的使用5.吸烟的人越来越多6.烟头7.破坏了环境的美丽8.含有有毒化学物质9.来到10.水供应11.影响水质12.分解Language Points13.dispose of the butts properly14.a rubbish bin15.plastic bags16.be dangerous to 17.charge for18.for free19.clean up20.save money13.妥善处理烟蒂14.垃圾桶15.塑料袋16.对有危险17.收费18.免费19.清理20.省钱Assignment1.Read the passage repeatedly.2.Recite the required sentences.3.Write an assessment of hat is being down to control the“small waste”problem.AssignmentSample WritingSeveral measures have been taken to deal with the“small waste”problem of cigarette butts in our community.Our streets now have many special small bins for putting cigarette butts in.Drains have special small grills to stop cigarette butts getting into the water system.They can both be cleaned easily.I think the measures have been effective,but still more can be done.The benefits of the measures are that they make it easier to dispose of butts and collect them.The disadvantages are that they dont stop the problem,as cigarettes still get smoked,and butts produced.Our assessment is that the measures were effective,but smokers need to be educated more about why not to drop their butts and to dispose of them properly.Vocabularytrillion num.万亿contain v.遏制，防止蔓延；抑制（感情）toxic adj.有毒的；极其有害的dispose of 处理mammal n.哺乳动物