7.10 動詞不定式的否定式
?
  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)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.

2) 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 后應(yīng)接不定式。其否定形式為pretend 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?梢灾挥胻o這個詞,而不必重復整個不定式詞組。及物動詞do后應(yīng)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一詞要求后用不定式,此處為不定式的被動,否定形式為be warned not to do。











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