(句和否定句的变法.docxVIP

句和否定句的变法一、 先将句子分成三类：1）含有am, is, are 的句子。2）含有行为动词的句子，（如like，have，play，eat，run，need）3）含有情态动词的句子，如can。(1) 如果是第一类，即含有am, is, are 的句子。只将把am, is, are 调到句首。I am 和We are 要变成are you，some变成any，my变成your，句末用问号。否定句只在be后加not。如am---am not； is ---isn’t； are----aren’t。如：① I am a boy. （否定句）----- I am not a boy. (变成一般疑问句)-----Are you a boy? Yes, I am. No, I’m not.② She is my mother.( 变成一般疑问句)-----Is she your mother? Yes, she is. No, she isn’t.③ This is a book.( 变成一般疑问句)------Is this a book? Yes, it is. No, it isn’t.④ These are strawberries.( 变成一般疑问句)----Are these strawberries? Yes, they are. No, they aren’t.⑤ There is some chicken on the table.( 变成一般疑问句)-----Is there any chicken on the table? Yes, there is. No, there isn’t.(2)如果是第二类，即含有行为动词的句子（如like，have，play，eat，run，need等）时，要分两步看主语。①I / We / You / They 时，要借助于助动词do的帮助来变成一般疑问句。即句型为：Do + 主语 + 动词原形 + 其他？否定句只在动词原形前加don’t。 例如：①②③④I have some tomatoes in my backpack.(否定句)I don’t have any tomatoes in my backpack.( 变成一般疑问句)-----Do you have any tomatoes in your backpack? Yes, I do. No, I don’t.We play sports every day.（否定句）---We don’t play sports every day.( 变成一般疑问句)----Do you play sports every day? Yes, we do. No, we don’t.②He / She / It 时， 要借助于助动词does的帮助来变成一般疑问句。即句型为：Does + 主语 + 动词原形 + 其他？否定句只在动词前加doesn’t，然后将单三还原成原形。She watches TV every evening. (否定句)---She doesn’t watch TV every evening.( 变成一般疑问句)----Does she watch TV every evening? Yes, she does. No, she doesn’t.注意：如果是其他名词的话，在简略回答中要用人称代词来替代，但替代都在第三人称中，即 he, she, it, they四个中。如：my mother ---she your brother ---- he a book ----it five photos-----they this/that-------it these/those------they my family name-----it Tom----he Mary--------she Amy’s sister -----she some friends------they (3) 如果是第三类情态动词，如can 时，一般疑问句只将can提到句首，否定句将can 变成can’t。同时注意一变二，二变一，三不变，some变any。(情态动词不受人称的限制)I can play basketball. ( 变成一般疑问句)----Can you play basketball? Yes, I can. No, I can’t.I can play basketball.(否定句)-----I can’t play basketball.七年级上册知识点总结(划线提问)一、划线提问：划线提问的实质是把原句变成特殊疑问句，所以选特殊疑问词是关键，常用的特殊疑问词有：种类 句中作用 例句疑问副词 When