一、名词复数规则
1.一般情况下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds
2.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches
3.以“辅音字母 y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries
4.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives,leaf——leaves
5.不规则名词复数:
man-men, woman-women, policeman-policemen, policewoman-policewomen,
child-children, foot-feet,tooth-teeth
fish-fish, deer-deer, sheep-sheep, people-people, Chinese-Chinese, Japanese-Japanese
二、一般现在时
一般现在时基本用法介绍:
【No. 1】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.我天天六点起床。
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。
2.行为动词:主语+行为动词( 其它)。如:We study English.我们学习英语。
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。
【No. 2】一般现在时的变化
1. be动词的变化。
否定句:主语+be not+其它。如:He is not a worker.他不是工人。
一般疑问句:Be+主语+其它。如:-Are you a student? -Yes. I am. / No, I'm not.
非凡疑问句:疑问词+一般疑问句。如:Where is my bike?
2.行为动词的变化。
否定句:主语+don't( doesn't )+ 动词原形( 其它)。如: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 doesn't often play.
一般疑问句:Do( Does )+主语+动词原形+其它。
如: - 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: - Does she go to work by bike? - Yes, she does. / No, she doesn't.
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
来源:小学英语
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