2016-06-23
xredued04
句型30
if it were not for… (= were it not for…)
if it hadn't been for… (= had it not been for…)"要不是因为有……;如果不是……"
[注意]这种结构中不能用否定结构的缩写形式，即不能用weren't it for…)
[例句]
If it hadn't been for (= Had it not been for) the determined captain, all the passengers on board wouldn't have been saved. 要不是船长一直坚强，船上的旅客就不会得救。
If it were not for your rich parents, you couldn't live so easy a life. 要不是你父母有钱，你的生活不会如此安逸。
If it were not for the expense, I would go abroad now. 如果不是因为经费问题，我现在就出国了。
句型31
"but for + 名词"和"but that +从句"，意思是"倘若不是;要不是"，接虚拟语气
[例句]
But for air and water, nothing could live. (= If there were no air or water, nothing could live.)
如果没有空气和水，什么东西都难以生存。
But for the storm, we should have arrived earlier.
= If it hadn't been for the storm, we should have arrived earlier. 如果不是暴风雨，我们早就到了。
But for you, we couldn't have carried out the plan. 要不是你的话，我们无法实施那项计划。
She could not have believed it but that she saw it. 若非亲眼所见，她是不会相信的。
句型32
在动词insist(1坚持做某事)，order, command(2命令), advise, suggest, propose(3建议做某事)，demand, require, request, ask(4要求)等表示建议、命令、要求的名词性从句中谓语动词要用虚拟语气。基本句型：主语+ (should) + 动词原形。另外像decide, desire, intend, recommend等也要接(should)+动词原形结构。