Unit8Weshouldn’twastewater.Lookatthisearth.Thisisourhome.Thereare……what’swrongwithher?Wecutdowntoomanytrees.Wecleartoomuchland.Wekilltoomanywildanimals.可数名词不可数名词Wemaketoomanycars.Wewastetoomuchenergy.Wewastetoomuchwater.•Weshould•Weshouldn’twatersavewaterwastewater.•WeshouldTreesplantmoretrees•Weshouldn’tkillwildanimals.wildanimal•Weshouldkeeptheriversclean.Weshouldkeeptheaircleanandfresh.Weshouldplantmoretrees.Weshouldusebikesinsteadofcars.Weshouldn’tkillwildanimals.Weshouldn’twastewaterWeshouldn’tlitter.•keeptheriversclean•保持河流干净•keeptheaircleanandfresh•保持空气干净又清新•plantmoretrees•种植更多的树•usebikesinsteadofcars•用自行车代替小汽车•shouldn’tkillwildanimals•不应该捕杀野生动物•shouldn’twastewater•不应该浪费水•shouldn’tlitter•不应该乱扔垃圾