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1、一般现在时的精讲精练: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+splay—playslike—likes (1)直接在动词词尾加-s. ask---askswork---worksget---getsstay---stays (2)以字母s,x,ch,sh或o结尾的动词,在词尾直接加-es. wat
2、ch---watcheswish---wishesfix---fixesdo---does go---goespass---passes (3)以“辅音字母加-y”结尾的动词,要先变y为i再加-es. try---triesstudy---studiescry---criesfly---flies 2.不规则变化: be----isarehave----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
3、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. T
4、hemanwhohasneverbeentotheGreatWallisnotarealman. 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.
5、 (2)当句子中即没有be动词,也没有情态动词时,则在主语前加助动词do(you,以及复数),does(单数she,he,it)变成问句;在主语后谓语动词前加助动词don’t(I,you,以及复数),doesn’t(单数she,he,it)变成否定句,助动词后的动词要变成动词原形。 例:①陈述句:Wegetupat7:00everymorning. 疑问句→Doyougetupat7:00everymorning?3 否定句→Wedon’tgetupat7:00everymorning. ②陈述句:Shehasalittlebro
6、ther. 疑问句→Doesshehavealittlebrother? 否定句→Shedoesn’thavealittlebrother.(一).用动词的适当形式填空1.She_________(go)toschoolatseveno’clock. 2.It’s6o’clock.Theyare_________(eat)supper. 3.Heusually___________upat17:00.(get) 4.She___________(live)inBeijing. 5.Amy_________(be)herejust
7、now. 6._______(be)thereaflyonthetablejustnow? 7.Myfather__________(watch)TVeveryevening. 8.Myfather_______________(make)toysthesedays. 9.?________Amy_________(read)Englisheveryday 10.ChenJiesometimes_________(go)totheparkwithhersister.(二).选择填空1.Iwant____homeworknow.A.
8、doingB.todoC.todomyD.domy 2.It'stime______. A.gotoschoolB.playgamesC.togohomeD.todomyho