将下列句子改为一般疑问句和否定句

显示全部楼层 · 2007-4-18 20:22:06

1.has he borrowed a pan from todhe has not borrowed a pan from tod2.how long have we(you) studied english?we have not studied english for about five years3.has alice alredy done her homeworkalice has not done her homework yet4.have they already gone to the theatre?they have not gone to theatre yet

千问 · 2007-4-18 20:22:06

1、Theymustbeginthewokenow.Musttheybegintheworknow?(情态动词提到句首)Theymustn'tbegintheworknow.(情态动词的否定句在后直接加not)2、IneedanEnglishChinesedictionary.Idon'tneedanEnglishChinesedictionary.(此处need是实义动词，所以是一般现在时态的基本句型)DoIneedanEnglishChinesedictionary？（理由同上）3、Wehavegotalotofmoney.Haveyougotalotofmoney?(是现在完成时态的句型结构)Wehaven'tgotalotofmoney.但通常说成Wehaven'tgotmuchmoney.因为much常用于否定句。

千问 · 2007-4-18 20:22:06

1.Needtheybegintheworknow?/Theyneedn'tbegintheworknow.Must必须，该否定句意即“不必”，疑问句“有没有必要”，此处need用为助动词，直接在后面加动词原形，可作为常识，记住便可。2.DoIneedanEnglishChinesedictionary?/Idon'tneedanEnglishChinesedictionary.此处need为行为动词，采用通常的改变形式。3.Havewegotalotofmoney?/Wehaven'tgotalotofmoney.have为助动词，构成现在完成时。