高中英语语法详解
17页1、一 时态:一般现在时,现在进行时,一般过去时,现在完成时,一般将来时,过去进行时,过去完成时,过去将来时1. 一般现在时表示一般性,经常性的动作或一般性事实。u 含有be动词的句子He is a teacher.The girl is very beautiful.Tim and Jack are students.变疑问句将be动词移到句首Is he a teacher?Is the girl very beautiful?Are Tim and Jack students?变否定句在be动词后面加notHe is not a teacher.The girl is not very beautiful.Tim and Jack are not students.肯定回答及否定回答Yes, he is. No, he is not.Yes, she is. No, she is not.Yes, they are. No, they are not.u 不含有动词的句子,即含有一般动词的句子第三人称单数及单数名词He likes books.She likes him.The dog
2、 likes bones.变疑问句在句首加does, 动词变为原型Does he like books?Does she like him?Does the dog like bones?变否定句在主语及动词之间加doesnt, 动词变为原型He doesnt like books.She doesnt like him.The dog doesnt like bones.肯定回答及否定回答:Yes, he does. No, he doesnt.Yes, she does. No, she doesntYes, it does. No, it doesnt.注意:第三人称单数形式一般在动词后面加S,不要和名词复数混淆,变否定句或疑问句时名词复数没有任何变化。其他人称及复数名词I want to have a bath.We have some meat.The students like smart teachers.变疑问句在句首加doDo you want to have a bath?Do we have any meat?Do the students like smart
3、teachers?变否定句在主语和动词之间加dont.You dont want to have a bath.We dont have any meat.The students dont like smart teachers. 英语无忧学习网肯定回答及否定回答Yes, I do. No, I dont.Yes, we do. No, we dontYes, they do. No, they dont.2. 现在进行时表示现在正在进行的动作。构成: 主语be动词动词的现在分词其它成分(现在分词的构成见附录)We are having lunch.He is reading a book.The dog is running after a cat.The boys are swimming across the river.变疑问句将be动词移到句首Are we having lunch?Is he reading a book?Is the dog running after a cat?Are the boys swimming across the river?变否定句在
4、be动词后面加 notWe are not having lunch.He is not reading a book.The dog is not running after a cat.The boys are swimming across the river.特殊疑问句:what, which, how, where, who, etc.疑问词动词主语现在分词What are you doing?What is she doing?What is the dog doing?(必背)没有进行时的动词表示状态,思想,感情和感觉的动词不能表示正在进行的动作1. 表示感觉,感官的词see, hear, like, love, want,2. have, has当”拥有”讲时没有进行时3. 一般过去时表示过去发生的动作或事件, 常和表示过去的时间状语连用,如yesterday, last night, the day before yesterday, 3 days ago,含有be动词的句子, 将动词变为过去式,am, is的过去式为was,are的过去式为wereI was at
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