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1、一般现在时讲解一、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.(1)直接在动词词尾加-sask---askswork---works (2).以字母s,x,ch,sh或o结尾的动词,在词尾直接加-es watch---watcheswish---wishesfix---fixesdo---doesgo---goes (3).以“辅音字母加-y”结尾的动词,要先变y为i再
2、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,month),once(twice,threetimes)aday,等时间状语连用。 Theyusuallygotoschoolbybike. Itakethemedicinethreetimesaday. Shehelpshermot
3、heronceaweek.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.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.
4、(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? 否定句→Wedon’tgetupat7:00everymorning.②陈述句:Shehasalittlebrother. 疑问句→Doesshehaveal
5、ittlebrother? 否定句→Shedoesn’thavealittlebrother赞同一般现在时练习一、用括号内动词的适当形式填空。1.Heoften________(have)dinnerathome. 2.DanielandTommy_______(be)inClassOne. 3.We_______(notwatch)TVonMonday. 4.Nick_______(notgo)tothezooonSunday. 5
6、.______they________(like)theWorldCup? 6.What_______theyoften_______(do)onSaturdays? 7._______yourparents_______(read)newspaperseveryday? 8.Thegirl_______(teach)_____(we)EnglishonSundays. 9.SheandI________(take)awalktogethereveryevening. 10.There_
7、_______(be)somewaterinthebottle. 11.Mike_______(like)cooking. 12.They_______(have)thesamehobby. 13.Myaunt_______(look)afterherbabycarefully. 14.Youalways_______(do)yourhomework