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1、Module2Unit2Treesinourdailylives学习目标1掌握本单元的重点单词、短语理解课文内容。2语法点:一般现在时。ReadingTreesinourdailylivesRebeccawantstoknowmoreabouttreesandhowtheyhelpus.SheisinterviewingDrJonesabouttress.Rebecca:howdotreeshelpus,DrJones?DrJones:theyhelpusinmanyways,theykeeptheaircoolandclean.Theytakeinha
2、rmfulgasesfromtheairandproduceoxygenforustobreathe.They’remajorfightersagainstairpollution.Rebecca:Iknowtreesalsomakeourlivesmoreconvenient.Manyofthethingsinourdailylivescomefromtrees,forexample,paperandpencils.DrJones:You’reright,Rebecca.Infact,wegetalotmorefromtrees.Wegetfruita
3、ndoilfromthem.Teaalsocomesfromtheleavesoftrees.Lookaroundthisroom.Alotofthefurnitureismadeofwood.TreesarereallyimportantinourdailylivesRebecca:Ican’timagineaworldwithouttrees.DrJones:Butwecutdownmillionsoftreeseveryyear.Weshouldstopdoingthisifwedon’twantaworldwithouttrees.语法点一般现在
4、时一、定义与讲解一般现在时:表示经常性的事情,经常性的动作或一般性事实。时间状语:often经常,usually通常,always总是,every每个,sometimes有时,at…在几点钟只有在第三人称单数用动词的“三单变化”,其他用动词的原形。三单变化:1.多数在动词后+s play—plays like—likes(1)直接在动词词尾加-s.ask---asks work---works get---gets stay---stays(2)以字母s,x,ch,sh或o结尾的动词,在词尾直接加-es.watch---watches
5、 wish---wishes fix---fixes do---does go---goes pass---passes(3)以“辅音字母加-y”结尾的动词,要先变y为i再加-es. try---tries study---studiescry---cries fly---flies2.不规则变化: be----is are have----has 二、一般现在时用法1.表示经常性,习惯性,永久性的动作或存在的状态.通常与副词sometimes,often,usually,always,everyday(year,mo
6、nth),once(twice,threetimes)aday,等时间状语连用。 Theyusuallygotoschoolbybike. Itakethemedicinethreetimesaday. Shehelpshermotheronceaweek. Mary’sfatherisapoliceman. Thereare50studentsinmyclass.2.表示客观真理,科学原理,自然现象,等客观事实或格言,谚语等。 Thesunrisesintheeastandsetsinthewesteveryday. Themanwhohas
7、neverbeentotheGreatWallisnotarealman. TomorrowisTuesday.三、一般现在时的句子转换:(1)当句子中有be动词或情态动词时,则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句.例:①陈述句:Sheisastudent. 疑问句→Issheastudent? 否定句→Sheisnotastudent.②陈述句:Icanswim.疑问句→Canyouswim否定句→Icannotswim.2) 当句子中即没有be动词,也没有情态动词时,则
8、在主语前加助动词do(you,以及复数),does(单数she,he,it)变成