文档介绍：会计学
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专升本英语考试辅导
Contents
主要时态
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主动语态和被动语态
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真题精炼
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4
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1。 一般现在时的用法
1） 经常性或****惯性的动作，常与表示频腮度的时间状语连用。时间状语： every…, sometimes, at…, on Sunday。例如：
I leave home for school at 7 every morning.
2） 客观真理，客观存在，科学事实。例如：
The earth moves around the sun. Shanghai lies in the east of China.
3） 表示格言或警句。例如：
Pride goes before a fall. 骄者必败。
_________ it or not, his discovery had created a stir in scientific circles. A) Believe B) Believing
C) To believe D) Believed
注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。例：Columbus proved that the earth is round.
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4） 现在时刻的状态、能力、性格、个性。例如：
Ann writes good English but does not speak well.
Once environmental damage __________, it takes many years for the system to recover. A) has done B) is to do C) does D) is done
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2 一般过去时的用法
1）在确定的过去时间里所发生的动作或存在的状态。例如：时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。例如：
Where did you go just now? 刚才你上哪儿去了？
2）表示在过去一段时间内，经常性或****惯性的动作。例如：
When I was a child, I often played football in the street.
Whenever the Browns went during their visit, they were given a warm welcome.
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I decided to go to the library as soon as I _______. A) finish what I did B) finished what I did C) would finish what I was doing D) finished what I was doing
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句型 ：It is time that sb. did sth. “时间已迟了” “早该……了” ，
例如It is time you went to bed.
would （had） rather sb. did sth. 表示‘宁愿某人做某事’。例如：
I'd rather you came tomorrow.
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4） wish, wonder, think, hope 等用过去时，作试探性的询问、请求、建议等，而一般过去时表示的动作或状态都已成为过去，现已不复存在。
Mrs. Darby lived in Kentucky for seven years. （含义：达比太太已不再住在肯塔基州。）
Mrs. Darby has lived in Kentucky for seven years. （含义：现在还住在肯塔基州，有可能指刚离去）
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注意： 用过去时表示现在，表示委婉语气。
1）动词want, hope, wonder, think, intend 等。例如：
Did you want anything else?
I wondered if you could help me.
2）情态动词 could, would。例如：
Could you lend me your bike?
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used to / be/get used to
used to + do："过去常常