Question

Tourists were told _____their sunglass to protect their eyes from the strong sunlight

1. A.
   to not take off
2. B.
   not to take off
3. C.
   not taking off
4. D.
   not take off

Answer 1

B
試題分析：考查不定式的否定式和被動語態(tài)。固定搭配tell sb to do sth告訴某人做某事；否定式是tell sb not to do sth告訴某人不要做某事；本句是其被動語態(tài)的形式：be told not to do sth被告知不要做某事；句意：游客們被告知為了保護(hù)眼睛不受傷害，不能摘下墨鏡。故B正確。
考點：考查不定式的否定式和被動語態(tài)
點評：不定式的否定式就是在不定式符號前面直接加not。所有的非謂語動詞的否定式都是在前面直接加not，這一點要牢記。