湖北专升本英语考试中语法填空、翻译填空、作文等板块都离不开句型结构。句型结构内含超多语法内容，学会了这些，可以融会贯通解答各类题型。
句型 8 before 的特殊用法(2)--过了多久才……;动作进行到什么程度才……
They walked about fifty miles to the west before theysaw a village.
他们西行 50 英里才看到一个村庄。
The workers worked day and night about three daysbefore everything returned to normal.
工人们连续工作3天才使一切恢复正常
He almost knocked me down before he knew it.
他几乎撞到我了才意识到。
We had walked a long way before we found some water.
我们走了很长的路才找到一点水。
Five years went by before I knew it.
不知不觉，五年过去了。
句型9 before 的其他用法(3)
用法 It was+时间段+before.. 过了多久才…
It was not long before...不久,就
It will(not)be +时间段+before.. 要过多久……才(before 从句谓语动词要用一般时态)
It was not long before he sensed the danger of theposition
不久他就意识到他处境的危险，
It was five days before he came back.
5 天后他才回来。
It will be half a year before you graduate from theschool.
再过半年你才能毕业
It will not be long before they understand each other.
他们大概不久就会互相了解。
句型 10 in case of/that... 以防…,万一
用法in case of...(+n.)以防;万
imncase that.. 以防,万-…(谓语动词用一般现在
时态或“should+动词原形”形式)
eIn case of fire, what should we do?
万一遇到火灾我们该怎么办?
ePlease remind me about it in case I forget/should for-get. 万一我忘了,请提醒我。
eIn case (that)John comes/should come, please tell him to wait. 万一约翰过来,请让他等等
Please take your umbrella in case(that it rains/shouldrain).带上雨伞,以防下雨。
句型 11 It 强调句型
强调句的基本构成:It is/was+被强调的部分+who(主要指人时 )/that+其余部分。
用法1这种结构可以强调句子的主语、宾语、状语(包括时间,地点,方式,原因等),但是不能强调谓语动词。
原句的谓语动词如果是现在或将来时态,用Itis..that/who...;
原句的谓语动词如果是过去时态,用It was..thatwho..;强调时间、地点、原因或方式时不要用 when,where或how,必须用 that。
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