在一般现在时的肯定句中,当主语为非第三人称单数时,谓语动词用原形; 当主语为第三人称单数时,谓语动词用单数第三人称形式。 实义动词的一般现在时的单数第三人称形式遵从“s,es, ies”六字母规则。如下表所示: 实意动词单数第三人称变化规律: 注意:不规则变化的有have—has, be—is, go—goes, do—does 一般现在时,当主语是第三人称单数时,谓语动词要用第三人称单数形式 主语是第三人称单数有以下几种情况: (1) 不可数名词做主语: Some water is in the glass (2) 单个的可数名词做主语: The girl is Chinese. My watch is on the dresser. (3) He ,she , it 等代词单个做主语: He is in the tree. She likes her family very much. (4) 单个的人名,地名或称呼作主语: Mary is a doctor. Uncle Li speaks a little English. Changchun is a beautiful city. (5) 指示代词this, that 等作主语: This is a pear. That is an apple . (6) Everyone, everything ,something, nobody, nothing.等不定代词作主语时 Is everyone here today? Everything is ok . (7)单个数字作主语时: ”8” is a good number in China. 动词单数第三人称形式的一般现在时的句子的否定句、疑问句及特殊疑问句。 否定句: 在主语的后面实义动词前加doesn’t(注意实义动词应恢复原形。) 主语(单三)+doesn’ + 动词原形+其他 Jim likes football变否定: Jim doesn’t like football He has lunch at school. 变否定:He doesn’t have lunch at school. 一般疑问句及答语,在句子前面加助动词does. 实义动词恢复原形 Does +主语(单三)+ 动词原形+其他 Does your father work ? Yes, he does. /No, he doesn’t 特殊疑问句:特殊疑问词+一般疑问句 特殊疑问词+ does +主语(单三)+ 动词原形+其他 Where does a bird live ? How does she go to school? |
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