Question

When a pencil is partly in a glass of water，it looks as if it_______．

A. breaks
B. has broken
C. were broken
D. had been broken

Answer 1

答案C
当as if引导虚拟语气的句子时，如果主句与从句中的谓语动词所表达的动作同时发生，as if后接一般过去时。如：He acted as if he were a boy of ten．如果从句中的谓语动词所表示的动作发生在主句谓语动作之前，则用过去完成时，如：He talked as if he had known the secret．不论主句中的谓语是现在时还是过去时。