1.You look sad. What happened / has happened?
2. My watch has / is gone. Who took / has taken it away?
3. My cake is gone. Tom ate it / Tom has eaten it.
4. The window is broken. Who broke / has broken it?
就这些句子的时态选择,学生我很是纠结,总是混沌,盼望专家可以为学生深度剖析一下,帮我彻底解开这种混沌的状态。谢谢。
对于一个发生在过去的动作,只要没有明确的时间状语,使用一般过去时或现在完成时,都正确。在此情况下,这两种时态没有本质的区别。破折号后面的两个句子,放在上文的语境中,都没问题,或者干脆说都正确。希望你不要太纠结这两种时态的区分。在美国英语中,使用一般过去时,反而显得句子更加简练。
1.You look sad.
——What happened / has happened?
2. My watch is gone. (不说:My watch has gone.)
——Who took / has taken it away?
3. My cake is gone.
——Tom ate it / Tom has eaten it.
4. The window is broken.
——Who broke / has broken it?
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