作业帮英语否定句和一般疑问句的用法
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英语否定句和一般疑问句的用法
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）
Is there anything 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）
Did Edison build a science lab himself when he was ten?
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.
否定句就是在上述情况下,助动词后面加not就可以了.
He is a boy.(He is not a boy.)
He works in a hospital.(He doesn''t work in a hospital.)
He can swim.(He can not swim.)
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）
Is there anything 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）
Did Edison build a science lab himself when he was ten?
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.
否定句就是在上述情况下,助动词后面加not就可以了.
He is a boy.(He is not a boy.)
He works in a hospital.(He doesn''t work in a hospital.)
He can swim.(He can not swim.)