be 动词的含意: a. 是 表状态 we are happy b. 在 表存在 she is in America
主语 | be 动词 | 例句 |
---|---|---|
第一人称 | am | I am boy |
第二人称 | are | you are my ==sons== |
第三人称 单数 | is | He is my ==student== |
确定句 主词 + am/ are /is 否认句 主词 + am / are / is + not He is not a good baseball player. He isn'’t good baseball player
确定句 主词 + am/ are /is 疑问句 am / are / is + 主词 + ...? The girl is a junior high school student 这个女孩是中学生。 Senior high school. 高中生 Is the girl a junior high school student?
可用Yes、No回答,答句中的主词须用代名词 Is that man your math teacher。 那个男人是你的说学老师吗? Yes. He is / No he isn’t
通常动词的含义: 具体的动做 eg: eat、walk 抽象的动做 eg:like、think
如今式的句子中,主词为第三人称==单数==时,通常动词须加s或esapp
人称 | 单数 | 复数 |
---|---|---|
第一人称 | I like dogs | we like dogs |
第二人称 | You like dogs | you like dogs |
第三人称 | he ==likes== dogs | they ==like== dogs |
通常动词的否认句,不可在通常动词后加 not 必须用助动词 do / does 且 以后必须是动词原形code
Do 用于主词 为 I 、you、复数 Does 用于主词 为第三人称单数, 确定句: 主词 + 通常动词 否认句: 主词 + do/ does + not + 原型动词 例如 The twin brothers go to school by bus.这对双胞胎是乘公交车上学的。 the twin brothers do not go to school by bus 比较------否认句 Be 动词 He is my boyfriend He is not my boyfriend 通常动词 He likes dogs He doesn’t like dogs
不能将通常动词放在主词前,必须用助动词do/ does原型
确定句: 主词 + 通常动词 疑问句: do/does + 主词 + 原型动词 You visit your grandmother on Sunday. 改为疑问句Do you visit your grandmother on Sunday? 你每逢星期天去看你的外婆吗
助动词do/ does 开头的疑问句回答用 yes/no 以后用do/ does 回答it
Does the little boy go to school. 这个小男孩已经上学了吗? Yes he does / No, he doesn’t 比较-----疑问句 Be 动词 She is beautiful Is she beautiful? 通常动词 she loves tennis Does she love tennis?