• If + 从句主语 + 动词过去式，主句主语+ would (‘d) +动词原形。
• 例如：
• If I had the time, I’d make something better.
• 在这种与现在事实相反的虚拟条件句中，需要注 意的是，不论主语是什么人称，be动词都常用 were，
• 如：
• If I were you, I’d ask her.
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• 现在我们看看进行时的被动态形式。进行时被动 语态分为现在进行时被动语态和过去进行时被动 语态。这两种被动语态的时态是通过be动词来体 现的。我们分别来看它们的基本结构：
• 现在进行时被动语态：
• be ( am / is / are) + being + 动词过去分词
• How many years have you been working here?
• Who have been working here for three years?
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• 这几个单元中的一个难点是虚拟条件句。 • 虚拟条件句表示与事实相反的愿望、假想。同学
们先掌握与现在事实相反的虚拟条件句。其结构 是：
• “ My parents live in Beijing,” She said.
• She said her parents lived in Beijing.
• “I was ill on the flight,” he said.
• He said he had been ill on the flight.
• 特殊疑问句形式将疑问词置于句首我们来看一个 例子：
• I’ve been working here for three years.
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• I haven’t been working here for three years.
• Have you been working here for three years?
Unit 7- Unit 12 重点
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1. therefore, although和however的用法
2. 现在完成进行时
3. 虚拟条件句
4. 进行时的被动语态
5. 间接引语
6. 我 们 先 来 看 看 therefore, although, 和 however的用法。
7. therefore表结果,比so显得更正式一些，在句 中常与and连用；
8. 如 ： He worked day and night, and therefore he was able to buy a new sports
car.
9. although表示“虽然……，但是……”所引导
的从句可以放在主句前面，也可以放在主句的
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• 如: Although they were 75 years old, they still played tennis every day. ；
• Where were 200 people being treated?
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• 间接引语也学习过。要注意的是间接引语中主句 时态和从句时态的一致性原则。一般来说，如果 主句谓语动词为过去时，在将直接引语变为间接 引语时，要将直接引语中的谓语动词时态往前推 一个时间档，即一般现在时变为一般过去时，一 般过去时则变为过去完成时，看下面的例子：
• 由于although的中文意思是“虽然……，但 是……”，很多学员容易犯的一个错误是用了 although后，又用but，这在英语里是错误的。
• however表示转折，与but意思相同，但是较正式 的说法。However在句中位置较灵活，在句首时， 后面常用逗号。
• 如：He was wealthy. However, he was very mean(吝啬的).
•
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• 过去进行时被动语态：
• be (was / were ) + being + 动词过去分词
• 这两种被动语态的否定形式和疑问句形式都是在 be动词上发生变化。例如：
• His behaviour is not being blamed by the public.
• Were 200 people being treated?
பைடு நூலகம்
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• 现在完成进行时。现在完成进行时强调动作从过 去某个时间一直持续到现在，而且还要继续下去。 其基本构成是：have / has + been doing… （基 本结构）
• have / has not + been doing… （否定形式）
• Have / has + 主语 + been doing… （一般疑问 句形式）