Unit 4 Planting trees is good for us

ALet'sListenandSayBLet'sLearnCLet'sPractiseDLet'sReadELet'sWriteFLet'sHaveFun回到首页TreePlantingDayIt'son12thMarch.WhenisTreePlantingDay?回到首页planttreesWhatshouldwedo?ALet'sListenandSay回到首页回到首页Whatcantreesdo?树木可以做什么呢？treescankeeptheaircleanair[eə]空气回到首页回到首页treescankeepuscool回到首页treescanmaketheplacebeautifulplace[pleɪs]地方回到首页ActitoutWorkingroups,andactitout!Then，showtous!小组内分角色演读课文。然后，展示给大家看。回到首页planttrees植树keepuscool使我们保持凉爽maketheplacebeautiful使这个地方变得美丽keeptheairclean保持空气清新BLet'sLearn回到首页CLet'sPractise回到首页Iwillwatertheyoungtreeseveryday.我将每天给小树浇水。water（1）（名词）水如：Waterisimportantforus.水对我们很重要。（2）（动词）浇水如：Youshouldoftenwatertheflowers.你应当经常给花浇水。回到首页Weshouldlookafterthem.我们应该照顾它们。lookafter照顾同义短语：takecareof如：Amyoftenlooksafterhergrandma.埃米经常照顾她的奶奶。回到首页Soontheywillbecomebigtrees.很快它们将成为大树。become（动词）变成，成为如：Hewillbecomeateacher.他将成为一名老师。回到首页DLet'sRead回到首页Becausewewantmorehouses,roadsandbuildings.因为我们想要更多的房屋、道路和建筑物。building（名词）建筑物如：Heliveinatallbuilding.他住在一栋高楼里。回到首页Therearemoreandmoreroadsbecausetherearemoreandmorecars.有越来越多的路是因为有越来越多的汽车。moreandmore形容词比较级+and+形容词比较级，表示“越来越……”。如：betterandbetter越来越好strongerandstronger越来越强壮moreandmoreinteresting越来越有趣Moreandmorepeoplearecominghere.越来越多的人来到这里。ELet'sWrite回到首页Completethetable.Whydopeoplecuttrees?1.___________________________________________2.___________________________________________3.___________________________________________4.___________________________________________Whyshouldweplantmoretrees?1.___________________________________________2.___________________________________________3.___________________________________________4.___________________________________________Treescanmaketheplacebeautiful.Treescankeeptheairclean.Farmersneedmorelandtogrowfood.Wewantmorebuildings.Wewantmoreroads.Wewantmorehouses.Treesmaketheearthcleanandgreen.Treeshelptomaketheaircoolandfresh.FLet'sHaveFun回到首页