备战2013中考英语：中考英语含助动词句型精讲9
... need not have V-ed ...结构︰主词+need not have+过去分词
说明︰此句型意为"原本不必…但却…"。表示"与过去事实相反"的，即做了没有必要做的事。而"didn't need
to+原形"则表示"过去的事实"，译为"当时不必…而且也没…"。need not have
在中表对过去之必要性的强烈疑问，即"有…的必要吗?"。
You need not have bought extra oil for this short
trip.在这么短的旅程中，你实在没有必要多买油。
You need not have got up so early. 你不必起得那么早。
Need he have gone to the station to meet her? 他有必要到车站去接她吗?
He need not have come. (But he came.) 当时他不必来。(但却来了)
He didn't need to come. (And he didn't come.) 当时他不必来。(而且也没来)
It was fine that day, so I need not have brought an umbrella with me.
那天天气很好，我原本不必带伞的(但却带了)。
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