Unit13We’retryingtosavetheearth！SectionA單詞分類與變形?Verb-動詞1.亂扔(n.)垃圾；廢棄物____________________________2.花費(fèi)(n.)花費(fèi)；價錢______________________________3.承擔(dān)得起(后果)；買得起__________________________?Noun-名詞4.底部；最下部___________________________________5.漁民；釣魚的人_________________________________6.煤；煤塊_______________________________________7.優(yōu)點(diǎn)；有利條件_________________________________8.工業(yè)；行業(yè)_____________________________________9.法律；法規(guī)_____________________________________?Adjective-形容詞10.丑陋的；難看的________________________________11.木制的；木頭的________________________________12.塑料的(n.)塑料；塑膠___________________________13.殘酷的；殘忍的________________________________14.有害的________________________________________15.科學(xué)上的；科學(xué)的______________________________?單詞72變(寫出下列單詞的變形)16.advantage(n.)→(n.反義詞)________________________17.cost(v.)→(過去式)__________→(過去分詞)___________________18.wood(n.)→(adj.)_________________________________19.harmful(adj.)→(n.)_______________________________20.science(n.)→(adj.)_______________________________21.reuse(v.)→(adj.)_________________________________22.transport(v.)→(n.)________________________________學(xué)科素養(yǎng)·發(fā)現(xiàn)規(guī)律構(gòu)詞法:單詞+-able后綴構(gòu)成對應(yīng)的形容詞(1)動詞+able：含義為“能??的”“可以(被)??的”“值得??的”等。e.g.：reuse重復(fù)使用→reusable可重復(fù)使用的；(2)名詞+able：意為“具有??特點(diǎn)的”。e.g.：value價值→valuable有價值的短語互譯23.beharmfulto..._______________________________24.在??頂部或頂端_____________________________25.食物鏈______________________________________26.參加________________________________________27.turnoff______________________________________28.payfor_______________________________________29.takeaction____________________________________句型填空30.這個鎮(zhèn)上的每個人都應(yīng)參與清理！Everyoneinthistownshould_______________________cleaningitup!31.嗯，為了減少空氣污染，我們應(yīng)該乘公共汽車或地鐵，而不是開車。Well,_____________________airpollution,weshouldtakethebusorsubwayinsteadofdriving.

Unit13We’retryingtosavetheearth！SectionA參考答案1.litter 2.cost3.afford 4.bottom5.fisherman 6.coal7.advantage 8.industry9.law 10.ugly11.wooden 12.plastic13.cruel 14.harmful15.scientific 16.disadvantage17.cost；cost 18.wooden19.harm 20.scientific21.reusable 22.transportation23.對??有