【導(dǎo)讀】Unit7Enviroment. Pre-readingquestions:. 1.Whatpartofthe. naturedoyouthinkis. beautiful?thesea. thelake. astream. theforest. humanbeingsare. thenature.Howmanykindsof. pollutiondoyouknow?airpollution. waterpollution. landpollution. noisepollution. Brainstorming:. use---. eat---. drink--. wear--. Brainstorming:. use--. eat--. drink--. wear--. pencils,chopsticks,tables,chairs,paper. fruit,nuts. tea(leaves),coffee(beans). flowers,shoes(rubber). AB. amicei75years. ccatsiii25years. ddolphinsiv1,200years. epeoplev2years. 1Howlongdotheylive?Aairpollution. Bnoisepollution. Cwaterpollution. Dalloftheabove. Airpollution:. oxygen.Waterpollution:. theair,andtheirroots. Noisepollution:. vehicles.aapples. bbeans. ccotton. doil. etea. frubber. Blookandthink. scientists.another.F. F. F. T. A. 1project. 2interviewing. 3breathing. 4natural. 5warn. 6achemical. 7cutdown. B. Amadebynature,notbyman. questions. orstudents. Dtakinginair. chemistry. mayhappen. 3breathe:takeinair. 4burn:damagefire. usedinchemistry. information,messages,signals,etc.oftheground. 2.Somepeopl