be動詞、一般動詞和助動詞-wenkub
2023-05-29 06:01:07 本頁面
【正文】 market every morning.（過去式）Mother went to a supermarket yesterday.—主語為第三人稱單數(shù)時，動詞過去式不加s。178。且助動詞之后用原形動詞，因為助動詞表示了時態(tài)、數(shù)的變化?？隙ň洌褐髡Z+am/are/is…否定句：主語+am/are/is+not…He is a good baseball player.他是一個好棒球員（否定句）He is not a good baseball player.= He’s not a good baseball player.= He isn’t a good baseball player.be動詞的疑問句含be動詞（am/are/is）的肯定句變成疑問句時，將be動詞拿到主語前，句尾加？即可?？隙ň洌褐髡Z+am/are/is…疑問句：Am/Are/Is+主語…？ is his camera.那是他的相機（疑問句）Is that his camera? girl is a junior high school student.那女孩是初中生（疑問句）Is the girl a junior high school student?O Be動詞開頭的疑問句為一般疑問句，可用yes或no回答，而答句中的主語用代名詞（問句）Am/Are/Is+主語…？（答句）Yes,主語+am/are/is No,主語+am/are/is not that man your math teacher?Yes, he is./No,he is not. you eating your lunch?Yes, I am./No, I’m not.（2）一般動詞的現(xiàn)在式一般動詞的含義凡是日常生活中具體的動作，如：eat吃飯，walk走路及抽象的動作如：like喜歡，think思考…皆為一般動詞主語+一般動詞人稱 數(shù)單數(shù)復數(shù)第一人稱I like dogs.We like dogs.第二人稱You like dogs.You like dogs.第三人稱He likes dogs.They like dogs.O 一般動詞加s或es的方法works/plays。do—用于主語為I/you/復數(shù)does—用于主語為第三人稱單數(shù)she/hedid—用于過去式，不分人稱和數(shù)均可用肯定句：主語+一般動詞…否定句：主語+do/does/did+not+原形動詞 twin brothers go to school by bus.這對雙胞胎兄弟坐公交車上學（否定句）The twin brothers do not（=don’t）go to school by bus. has dinner at the restaurant.（否定句）Sam does not（=doesn’t）have dinner at the restaurant.比較 否定句He is my boyfriend.He is not my boyfriend.He likes dogs.He does not like dogs.一般動詞的疑問句含有一般動詞的肯定句變成疑問句時，不可將一般動詞拿到主語前，必須用助動詞do/does/did，且助動詞之后用原形動詞。 was和were現(xiàn)在式過去式be動詞amisarewaswerebe動詞過去式的否定句含be動詞過去式was/were的肯定句邊否定句時，在be動詞后加not.肯定句：主語+was/were否定句：主語+was/were+not… was a vet.Brown先生是一個獸醫(yī)（否定句） was not（=wasn’t）a vet. and Brain were in the living room at that time.（否定句）Joe and Brain were not （weren’t）in the living room at that time.be動詞過去式的疑問句含be動詞過去式was/were的肯定句變疑問句時，將was/were拿到主語前，句尾加？即可。一般動詞過去式的否定句含一般動詞過去式的肯定句變否定句時，不可直接在一般動詞之后加not，必須用助動詞did（不分人稱和數(shù)），而助動詞之后用動詞原形。He doesn’t can speak English. 常見助動詞的用法（1）can（could）Can表能力、許可、可能，而could是can的過去式（=be able to） can speak Japanese, but he cannot（=can’t）write it. will be able to（此處不能用can） finish the paper and go out to see the exhibition tomorrow. haven’t been able to recall his name.我一直想不起他的名字 cannot be true.那不可能是真的 kind of thing can happen every now and then.
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