小学英语基础知识大全
小学的英语知识注重的是基础,对于英语的从句和其他进阶要求不高,因此小学生应该先了解这些: 一般现在时基本用法介绍 一般现在时的功能:
1.表示事物或人物的特征、状态。如:The sky is blue.天空是蓝色的。 2.表示经常性或习惯性的动作。如:I get up at six every day.我每天六点起床。 3.表示客观现实。如:The earth goes around the sun.地球绕着太阳转。 一般现在时的构成:1. be动词:主语+be(am, is, are)+其它。如:I am a boy.我是一个男孩。 注意:(我用am,你用are,三单is,复数are。) 行为动词: 主语+行为动词(+其它) 如:We study English.我们学习英语。 注意:(当主语为第三人称单数(he, she,it)时,要在动词后加"-s"或"-es"。如:Mary likes Chinese.玛丽喜欢汉语。) 一般现在时的变化: 1. be动词的变化。 肯定句:主语+be+其它 He is a worker. 他是工人。 否定句:主语+ be + not +其它。 He is not a worker.他不是工人。 一般疑问句:Be +主语+其它。 (be动词移到句首) 如:I am a student. -Are you a student? -Yes. I am. / No, I'm not. 特殊疑问句:疑问词+一般疑问句。 如:My bike is under the tree. Is your bike under the tree? Where is your bike?
2.行为动词的变化。 肯定句:主语+动词原形(+其它)。 否定句:主语+ don't( doesn't ) +动词原形(+其它)。 如:I like bread. I don't like bread. 当主语为第三人称单数时,要用doesn't构成否定句。 如:He ofter plays football. He doesn't often play football. 一般疑问句:Do( Does ) +主语+动词原形+其它。(句首加助动词do, does) 如:I often play football. - Do you often play football? - Yes, I do. / No, I don't. 当主语为第三人称单数时,要用does构成一般疑问句。 如:She goes to school by bike. - Does she go to school by bike? - Yes, she does. / No, she doesn't. 特殊疑问句:疑问词+一般疑问句。 如:She goes to school by bike. Does she go to school by bike? How does she go to school? 动词+s的变化规则 1.一般情况下,直接加-s,如:cook-cooks, milk-milks 2.以s. x. sh. ch. o结尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes 3.以“辅音字母+y”结尾,变y为i, 再加-es,如:study-studies 现在进行时 1.现在进行时表示现在正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作。(句中一般含有now, look, listen.) 2.现在进行时的肯定句基本结构为be+动词ing. 如:Tom is reading books in his study . 3.现在进行时的否定句在be后加not。 如:Tom is reading books in his study . Tom is not reading books in his study . 4.现在进行时的一般疑问句把be动词调到句首。 如:Tom is reading books in his study . Is Tom reading books in his study ? 5.现在进行时的特殊疑问的基本结构为:疑问词+一般疑问句? (注意:当划线部分包含谓语动词时,用疑问词代替划线部分放到句首,原划线处应加上doing) 如:Tom is reading books in his study . Tom is reading books in his study . Is Tom reading books in his study ? Is Tom reading books in his study ? What is Tom doing in his study? Where is Tom reading books? 动词加ing的变化规则 1.一般情况下,直接加ing,如:cook-cooking 2.以不发音的e结尾,去e加ing,如:make-making, taste-tasting 3.如果末尾是辅音字母加一个元音字母和一个辅音字母,双写末尾的辅音字母,再加ing,如:run-running, stop-stopping
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