please be quiet.变否定句 please stand in line.变否定句 don t stamp your,please.变肯定句please don t walk on the grass.变肯定句快
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please be quiet.变否定句 please stand in line.变否定句 don t stamp your,please.变肯定句please don t walk on the grass.变肯定句快
please be quiet.变否定句 please stand in line.变否定句 don t stamp your,please.变肯定句
please don t walk on the grass.变肯定句
快
please be quiet.变否定句 please stand in line.变否定句 don t stamp your,please.变肯定句please don t walk on the grass.变肯定句快
1.若原句中有动词be原句中含有be动词(am,is,are,was,were) 和助动词(have,has,had) 和情态动词(can,shall,will,may,should,would,might,had better等)时,要在动词后直接加not.如：His mother has already called the police for help.(乌鲁木齐市中考题)His mother ________ called the police for help ________.(答案：hasn’t,yet)
2.若原句中没有动词be原句中没有be动词,助动词或情态动词时,要在行为动词前加助动词(do,does,did)与否定副词not的缩写形式.另外,还需要将原句子中的some改为any； too改either；already改为yet.还需要分清do,have等是实义动词还是助动词.如：The old man hurt his leg last Wednesday.(西宁市中考题)The old man ________ ________ his leg last Wednesday.(答案：didn’t hurt)
3.若原句中有不定代词原句中含有every,everything,all,both等不定代词或both…and…,a lot of 等短语时,与否定副词not连用属部分否定.把这些不定代词变成neither,none,no one或把both…and…变成neither…nor…时,才是全部否定.如：Both Joy and Sam like singing Beijing Opera.(新疆中考题) ________ Joy ________ Sam likes singing Beijing Opera.(答案：Neither,nor)4.若原句为复合句在含有宾语从句的主从复合句中,当主句的主语是第一人称,谓语动词是think时,如果要否定后面的宾语从句,习惯上否定主句的谓语动词.如：I think she will come here soon.→I don’t think she will come here soon.
Don't please be quiet. Don't please stand in line. Stamp your,please.
祈使句在变否定句中在句首加"Don't" 在变肯定句中，去掉"Don't".
please be quiet.变否定句:Please don't be quiet.
please stand in line.变否定句:Please don't stand in line.
please don t walk on the grass.变肯定句:Don't walk on the grass.
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