怎么把英语陈述句改为否定句和肯定句?

Question

怎么把英语陈述句改为否定句和肯定句?

Answer 1

一、陈述句：是用来陈述一件事情或表示一种看法,可分为肯定句和否定句两种形式. 1、谓语动词是be动词,助动词have, has, will,情态动词can等时,只要直接在这些词后面加not就构成否定形式. eg. Lily has already read this new book. (改为否定句) Lily ______ ______ this new book ________. 2、谓语动词是行为动词而又没有助动词或情态动词时,必须在谓语动词前加助动词,一般现在时加助动词do ,第三人称单数加does,一般过去时加did,再和not构成否定结构.必须指出的是：don't, doesn't, didn't后都用动词原形. eg.1)Jill has lunch at school every day. (改为否定句) Jill _____ _____ lunch at school every day. 2)The children had a good time at the party. (改为否定句) The children ______ _____ a good time at the party. 3)Rose didn't drink any milk this morning.（改为肯定句) Rose ______ ______ milk this morning. 二、疑问句：是用来提出问题的句子. A.一般疑问句：以be动词, have /has/do等助动词、can/may等情态动词开头,以yes或no来回答的问句. 它的基本结构是：Be/Have /Has/Did等助动词（包括情态动词）＋主语＋谓语（包括表语）＋┄?回答常用简略回答. 1、谓语动词是be动词、助动词、情态动词时,只要直接把这些词置于句首,句末改成问号. eg. There's something wrong with his bike.（改成疑问句） ______ _____ _______ wrong with his bike? 2、谓语动词是行为动词时,必须在句首加上助动词Do、Does（三单）、Did（过去式）加上这些助动词后,句子中谓语动词必须用原形. eg. 1)Edison built a science lab himself when he was ten. （改成疑问句） ______ Edison ______ a science lab himself when he was ten? 2)Those Japanese like Chinese food.（改成疑问句） ______ those Japanese ________ Chinese food? 注意：在把肯定句改成否定句或一般疑问句的时候,要注意句中是否有already、some、something、somebody等词,如果有也必须进行改变,already要改成yet,some、something、somebody等分别改成any、anything、anybody等.另外,在改成否定句的时候注意把too改成either,both改成neither,all改成none等.在改成一般疑问句的时候,常常把第一人称I、we改成第二人称you.