1、Unit 13 We are trying to save the earth!Section B 3aSelf Check九年级全一册 人教版Learning GoalsWarming UpWritingSummarySelf Check1 12345通过本课的学习，学生能够：能够应用本单元所学词汇短语句型，根据本单元话题保护环境，给市长写一封信你所在的城市存在的环境问题并给出你的建议。巩固这一个单元学过的重点词汇和短语。Learning GoalsWarming Up活动：校园环保标语征集小组合作，针对目前校园中存在的不环保现象设计至少三条标语，并制成海报。以下标语提示句型可供参考：Don
2、t.We should.We cant/shouldnt.,or.If we.,our world will.Pre-writingRead 3b and tell what we are going to write today.主题：文体：人称：时态：要点：介绍环保现状并提出环保建议应用文（书信）描述问题时第三人称为主，介绍具体措施时第一人称为主一般现在时介绍当前环境现状，产生这些问题的原因以及如何解决开头：正文：结尾：引入主题，说明存在环境问题具体描述环境问题、产生的原因以及解决方法总结全文，表达期望Part 1Part 2Part 32.Write the beginning.（fac
3、ts）1.Write the body.(give advice)3.Write the ending Match the function with each part.3a.Think about the environment in your town/city and complete the chart below.Which parts of the town/city have a nice environment?Why are they nice?Which parts need to be improved?Why?Good environmentWhy?Bad envir
4、onmentWhy?3b.Write a letter to the city mayor about the problems and your suggestions.In your letter,describe the environmental problems in your town/city.What are the problems?Where are they?What or who is causing these problems?Then,give suggestions or possible ways to solve the problems.I think t
5、hat.We should/could.I suggest./mer/n.市长Suggested answers:Good environmentWhy?Bad environmentWhy?Central Parkclean,fresh air,full of green plants,quiet and peacefulrubbish disposal areas at the bottom of apartment blocksrubbish spilling out of the bins,bad smells,unhealthy,full of pests（害虫）经典词句单词envi
6、ronment,importance重要性,save,energy,reduce,pollution,transportation交通,cause,protect短语environmental protection,in our daily life,in order to目的是,by bike/bus,instead of代替，而不是,plastic bags句子1.We should.2.It is necessary for us to.3.It is better.4.There are.5.疑问词+动词不定式1.Everyone in this town should play a
7、part in cleaning it up.2.To cut down air pollution,we should take the bus or subway instead of driving.3.The river used to be so clean.4.Lets take action now!5.All these small things can add up and become big things that can improve the environment.Good SentencesWrite a passage according to the info
8、rmation mentioned above.Pay attention to your spelling,grammar and structure.While-writingPost-writingNow,you can exchange your writings with your partners to check each others writing.范文赏析（林楚婷 广东实验中学)用its+adj.+for sb.to do sth.句型承上启下，为下文提出环保建议做铺垫Dear city mayor,At present,there are more and more en
9、vironmental problems in our city.So its important for us to start with small things to change the situation.First of all,we should call on people to develop the habit of travelling with low carbon,like choosing public transport.Secondly,as citizens,we are supposed to keep good living habits in the d
10、aily life,such as taking a short shower to save water and turning off lights to save energy.Moreover,we can also organize activities to encourage people to plant more trees to help improve the environment.巧用衔接词First of all,Secondly及Moreover,使得文章层次清晰，逻辑严密In conclusion,its high time for everyone to ta
11、ke action to protect our city.Yours,Li Hua 结尾用its high time for sb.to do sth.句型呼吁人们保护环境，呼应主题1.Write different forms of the words.Then add more to each group.v.n.n.adj.pollute fameact wood protect science inspire health build southcreate care pollutionfamousaction protection inspirationbuilding creat
12、ion creativitywoodenscientifichealthysoutherncarefulSelf Checkadj.n.adj.adv.different slowimportant wide sudden real differenceimportanceslowlywidelysuddenlyreally2.Match each statement with the grammar structure.StatementGrammarThe river used to be so clean.Present progressiveWe have seen many chan
13、ges in the environment.Modal verbsPeople should take public transportation more.Passive voiceThe river is polluted by factories.used toThe air pollution is getting worse and worse.Present perfect3.Write ways to cut down on these kinds of pollution.Kinds of pollutionWays to cut downwater pollutionland pollutionnoise pollutionair pollutionstop discharging waste water into riverstop littering plant more trees take public transportation 1.Writing:写下环境问题和你的建议2.复习词性转换以及重点语法：现在进行时、现在完成时、被动语态、情态动词、used toSummary
