一般现在时 精讲课件.ppt

1、时态,在英语中，不同时间发生的动作或存在的状态，要用不同的动词形式来表示，这种表示动作发生时间的各种动词形式称为时态。 I am 14 this year. I was 13 last year. He plays soccer ball every day. He played soccer ball yesterday.,一般现在时,一般现在时(The Simple Present Tense) 1.表示现在的状态： e.g. Hes twelve. Shes at work. 2.表经常或习惯性的动作： e.g. I get up at 6:30 every day. He reads

2、English every morning. 3.表主语具备的性格和能力等： e.g. She likes noodles. They speak French. 4.普遍真理和自然规律： e.g. Two plus four is six. The moon goes around the earth.,1.be 动词的一般现在时的句式： 肯定句：主语+be+表语(n., adj.等) e.g. He is a worker. You are thirteen. They are in the classroom. 否定句：主语+be+ not+表语 e.g. He is not a wor

3、ker. You arent thirteen. They arent in the classroom. 一般疑问句：Be+主语+表语? e.g. Is he a worker? Yes, he is./No, he isnt. Are you thirteen? Are they in the classroom? Yes, they are. No, they arent.,Be的用法口诀 I用am； you 用are, is连着he， she，it；单数名词用is,复数名词全用are。,变疑问，往前提，句末问号莫丢弃。 变否定，更容易，be后not莫忘记。 疑问否定任你变，句首大写莫迟

4、疑.,实义动词的一般现在时,构成（肯定句）,主语 + 实义动词 + 其他,These boys like bananas.,She likes bananas. The girl likes bananas.,注意：当主语为第三人称单数或单数名词时，谓语动词要用第三人称单数形式,实义动词的第三人称单数形式什么 时候加s，什么时候加es呢？,1、大多数动词在词尾直接加s， 如take takes look looks play plays bringbrings eateats buybuys comecomes 2、以辅音字母加y结尾的动词，要先将y变为i，再加es 如：fly flies s

5、tudy studies 26个字母中 除A E I O U五个元音字母外，其余21个都是辅音字母 3、以“s, x, ch, sh”结尾的，在词尾加“es” 如： teachteaches ; watchwatches 4、以“o”结尾的动词，加“es”，如： gogoes dodoes 5、特殊变化 havehas,动词单三形式规则变法:,用括号内动词的适当形式填空,1. He often _(have) dinner at home. 2. We _(watch) TV on Monday. 3. Nick _( go) to the store on Sunday. 4. They _

6、(like) the World Cup? 5.Su Hai and Su Yang _(have) eight lessons every day. 6.She _ (watch) TV with her parents.,has,watch,goes,like,have,watches,否定句的构成,主语 + 助动词（do/does）+not +实义动词原形 + 其他,These boys like playing basketball.,The girl likes playing basketball.,什么时候用助动词do，什么时候用助动词does呢？,取决于主语,The girl

7、doesnt(does not) like playing baketball.,These boys dont(do not) like playing basketball.,当主语为第一人称（I,we），第二人称(you)，第三人称复数(they)，复数名词时，用助动词do构成否定 当主语为第三人称单数(he,she,it)，单数名词时，用助动词does构成否定,注意：dont 和 doesnt 之后动词一定要用原形,I like red. (green) They like apples. (oranges) Tom watches TV.,eg1: I have a brother.

8、 I dont have a brother. eg2. He has lots of T-shirts. He doesnt have lots of T-shirts.,I dont like green.,They dont like oranges.,Tom doesnt watch TV.,10,.These boys go to school,4 5.Mary eats healthy food . 6.Our store has many clothes.,实义动词一般疑问句的构成 和它的肯定回答和否定回答,问句： Do you want to see a movie？ 肯答:Y

9、es，I do. 否答:No，I dont. 问句：Does he play basketball? 肯答：Yes,he does. 否答：No,he doesnt.,助动词 + 主语 + 动词原形 + 其它？,肯定回答用“Yes, 主语+ do/does.” 否定回答用“No, 主语+do/does not.” 助动词也常用缩写形式，主要有dont，doesnt,Yes,he does. No,he doesnt. Yes,they do. No,they dont.,特别注意：一定要注意动词的还原， 因为时态与数的变化已经体现在助动词上了。,Does he want to go shopp

10、ing? Do they play computer games?,将下列句子改为一般疑问句,They watch basketball games on TV. Do they wantch basketball games on TV? I have many new books. Do you have many new books? He eats eggs for breakfast. Does he eat eggs for breakfast?,含实义动词（或称为行为动词）一般疑问句的改写,秘诀：一加二改三问号一加：即在句首加助动词Do或Does；二改：1、把实义动词改为原形；

11、2、改换主语称谓（第一人称改为第二人称，I,weyou ）；三问号：句末的句号改为问号。,We have breakfast every morning., Do you have breakfast every morning?,He wants to see a movie., Does he want to see a movie?,按要求改写句子,1. Lingling watches TV every evening.(改为否定句) 2. She likes milk.(改为一般疑问句，并作肯定回答) 3. I often play tennis after school. (改为一

12、般疑问句，并作否定回答),4. Gao Shans sister likes playing table tennis.（改为否定句和一般疑问句） Gao Shans sister doesnt like playing table tennis. Does Gao Shans sister like playing table tennis? 5. I dont take these books to my brother.(改为肯定句) I take these books to my brother. 6.Mary doesnt have a story book.(改为肯定句) Mar

13、y has a story book.,特殊疑问句,行为动词一般现在时的特殊疑问句的构成：特殊疑问词+do/does+主语+动词原形+？ 特殊疑问词（who“谁”, what“什么”, where“哪儿”, when“什么时候”, how“怎么样”) 回答时，不能用yes或no来应答，而是怎样问就怎样答。,What does he do with his computer? 他用他的电脑做什么？ When do you use your computer? 你什么时候用你的电脑？ Where do they come from? 他们来自哪里？ How do you print your document? 你怎样打印你的文件？,1.They go to the park in the moring .2.You can write the name in th