動詞不定式是如何否定的

　　以下是小編為大家整理的動詞不定式的用法總結，希望能幫助大家更好地認識動詞不定式這個句型，提高英語水平。

　　不定式作否定例句|：

　　Tell him not to shut the window…

　　She pretended not to see me when I passed by. 我走過的時候，她假裝沒看見。

　　典型例題

　　1***　She pretended ___ me when I passed by.

　　A.　not to see　 B. not seeing　　C. to not see

　　D.　having not seen

　　答案：A。 pretend 後應接不定式。其否定形式為pretend not to do sth.。

　　2***Tell him ___ the window.

　　A. to shut not　 B. not to shut　 C. to not shut

　　D. not shut

　　答案：B。 tell sb to do sth 的否定形式為tell sb not to do sth.

　　3***Mrs. Smith warned her daughter ___ after drinking.

　　A. never to drive　 B. to never driver

　　C. never driving　 D. never drive

　　答案：A。warn sb to do sth. 的否定形式為warn sb not to do sth. 此處用的是否定詞never.

　　4*** The boy wanted to ride his bicycle in the street，but his mother told him ____.

　　A. not to　　B. not to do　　C. not do it

　　D. do not to

　　答案：A。not to 為not to do it 的省略形式。可以只用to這個詞，而不必重複整個不定式片語。及物動詞do後應有名詞、代詞等，否則不對，因此B，D不對。

　　5*** The patient was warned ___ oily food after the operation.

　　A. to eat no　 B. eating not　 C. not to eat

　　D. not eating

　　答案：C。warn一詞要求後用不定式，此處為不定式的被動，否定形式為be warned not to do。

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