容易出错的被动语态时态
请看看这道题：
—Have you moved into the new house?
—Not yet. The rooms __________.
A. are being painted B. are painting C. are painted D. are being painting
此题选A。从句意上看，此题应选被动式(这是显然的)，同时注意：被动语态要用现在进行时形式(这点容易忽视)。
在做动词的语态题时，同时要注意其时态形式：
You are wanted on the phone. 有人给你打电话。(一般现在时)
When was the building completed? 这座大楼什么时候建成?(一般过去时)
You won’t be allowed to take so much luggage with you. 不会准你带这么多行李。(一般将来时)
A new railway is now being built. 一条新铁路正在修建。(现在进行时)
The roads were being widened. 道路当时正在加宽。(过去进行时)
Such a thing has never been heard of before. 这种事以前从未听说过。(现在完成时)
有时被动式动词可与情态动词连用：
The work must be finished at once. 这工作必须马上完成。
The method can still be improved upon. 这方法还可以改进。
My umbrella may have been left on the train. 我的伞可能忘在火车上了。