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2019年六年级上学期第2周教案:1教学目标: 教学重点:1. 掌握动词三单的变化2. 能够灵活使用一般现在时的用法教学过程:一、 定义一般现在时: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 wish-wishes fix-fixes do-doesgo-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-studies cry-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, every day (year, month ), once (twice, three times) a day,等时间状语连用。They usually go to school by bike.I take the medicine three times a day.She helps her mother once a week.Marys father is a policeman.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。The sun rises in the east and sets in the west every day.The earth moves around the sun.Shanghai lies in the east of China.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.(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dont(I, you以及复数), doesnt(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:陈述句:We get up at 7:00 every morning.疑问句Do you get up at 7:00 every morning?否定句We dont get up at 7:00 every morning.陈述句:She has a little brother.疑问句 Does she have a little brother?否定句 She doesnt have a little brother. 小学教育资料好好学习,天天向上!第 4 页 共 4 页
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