1、Unit7 What can I do?我能做什么？Unit8 We shouldnt waste water.我们不应该浪费水。Unit7 What can I do?迟缓的虚弱的一个老妇人帮老人过马路沏茶做蛋糕打扫房间让他们开心彼此免费女士(未婚)slowweakan old womanhelp old people on the road make teamake cakesclean their homesmake them happyone anotherFreeMs语法:can的用法can 作为情态动词，后面直接加动词原型，表示“会、能”can的用法:例如：I can swim.我
2、会游泳。1.He can swimming.2.Mingming can writes.3.Peter can sing and dances.改错:swimwritedance句型:What can I do?I can+动词原型 我可以帮助老人过马路。I can help old people on the road.我可以帮妈妈做蛋糕。I can help my mom(to)make cakes.help sb.(to)do sth.帮助某人做某事Unit8 We shouldnt waste water.浪费女士上衣充足的世界节约一点（滴）新鲜的保持河流清洁保持空气清新种植更多的树用
3、自行车代替小汽车wasteblouseenoughworldsavedropfreshkeep the rivers cleankeep the air clean and freshplant more treesuse bikes instead of carsshouldnt kill wild animalsshouldnt waste watershouldnt litterexercise禁止捕杀野生动物禁止浪费水禁止乱扔垃圾锻炼句型:We should 我们应该.+动词原型我们应该爱我们的父母。We should love our parents.改错:1.He should p
4、lants more trees.2.Mingming should speaking English.plantspeak语法:should/shouldnt do sth.应该/不应该做某事语法:形容词的比较级和最高级1）一般词尾加）一般词尾加-er,-est变化规则：2）以字母）以字母e结尾的形容词或副词结尾的形容词或副词,直接加直接加-r,-st3）以重读闭音节结尾的形容词或副词）以重读闭音节结尾的形容词或副词,如末尾如末尾只有一个辅音字母只有一个辅音字母,双写该字母双写该字母,再加再加-er,-estsmall-smaller-smallest,tall-taller-tallest
5、 short-shorter-shortest,long-longer-longest nice-nicer-nicest,fine-finer-finest large-larger-largestbig-bigger-biggest,thin-thinner-thinnest hot-hotter-hottest fat-fatter-fattest4）以）以“辅音字母辅音字母+y”结尾的形容词或副词，结尾的形容词或副词，把把y变为变为i，再加，再加-er,-estheavy-heavier-heaviest,easy-easier-easiest early-earlier-earliest不规则变化的形容词:good（原形）-better（比较级）-best（最高级）
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