Unit7ProtecttheEarthGrammartime\n\nToprotecttheEarth,whatshouldwedo?savewatersavetreessaveenergydon’tusetoomuchplastic\nWaterisuseful.Weusewatertocleanthings.Weuse…to…\nHowtosavewater?Whatshouldwedo?Whatshouldwenotdo?Weshouldreusewater.Weshouldn’twastewater.\nwoodWoodisuseful.Weuse…to…\nTosavewood,whatshouldwedo?Weshould…Weshouldn’t…Weshouldnotcutdowntoomanytrees.Weshouldplantmoretrees.Weshouldreusepaper.Weshouldnotwastepaper.\nEnergyisuseful.Weuse…to…produceelectricity\nTosaveenergy,whatshouldwedo?Weshould…Weshouldn’t…Weshouldnotdrivesomuch.Weshouldwalktoschoolorgotoschoolbybike.Weshouldturnoffthelightswhenweleave.\nPlasticisuseful.Weuse…to…Butdon’tusetoomuchplastic.\nLet’strytouse活动要求：1、选好题目，两人合作，一人说一句。2、说完一题后，可尝试另外的两题，看看谁说得最多！use...to...woodeatplasticgoshoppingwatercleanplasticgoshopping1,000yearsToomuchplasticisbadfortheEarth.Don’tusetoomuchplastic.\nLet’sthinkWeusewatertoWeuseplastictoWeusewoodtocleanthings.makebagsandbottles.maketables,chairsusetoLet’sfindtherule(规则)sth.do…andotherthings.\nDoyouknow?Therewillbe40thirstycountriesin10years.Ifwedonothingtohelp,TherewillbeNocoalonEarthin113years.TherewillbeNooilonEarthin53.3years.TherewillbeNotreesonEarthin775years.myfriends,whatshouldwedo?\nWeshouldloveandprotectourEarth.\n句子翻译1.我们使用电脑来看新闻。Weusethecomputer__________(read)news.2.你们用筷子吃饭吗？_____you_____chopsticks____________meals?3.他从不用塑料杯子喝水。He_______________________cups______________water.4.我们应该节约能源，不应该浪费。We_______________energy.We__________________it.toreadDousetohaveneveruseplastictodrinkshouldsaveshouldn'twaste\nHomework1.背诵理解本课时语法知识。