Question

Which is WRONG？

1. A.
   These street lights have been turned on for three days．
2. B.
   These street lights have been on for three days．
3. C.
   These street lights have been on for the past three days．
4. D.
   These street lights have been on since three days ago．

Answer 1

A
分析：A項(xiàng)的動(dòng)詞是turn on，是短暫性動(dòng)詞，盡管用的是被動(dòng)語(yǔ)態(tài)，同樣不能和for+一段時(shí)間連用。B，C，D都是用have been on表示狀態(tài)的延續(xù)，只是后面時(shí)間狀語(yǔ)的不同，但這三個(gè)時(shí)間狀語(yǔ)都可以做表示狀態(tài)的動(dòng)詞的現(xiàn)在完成時(shí)的時(shí)間狀語(yǔ)。