九年级英语单元知识点
一、将来完成进展时
：表示动作从某一时间开头始终连续到将来某一时间。是否连续下去，要视上下文而定。
：shall/will have been doing
九年级英语单元知识点
一、将来完成进展时
：表示动作从某一时间开头始终连续到将来某一时间。是否连续下去，要视上下文而定。
：shall/will have been doing
：I shall have been working here in this factory for twenty years by the end of the ，我将在这个工厂工作20年了。
If we dont hurry up the store will have been closing before we get there. 咱们如不快一点儿，等我们到了那儿，店门就会关了。
二、 过去将来完成进展时
：表示从过去某时看至将来某时以前会始终在进展的动作。
：should/would + have + been +现在分词
：He told me that by the end of the year he would have been living there for thirty ，到年底时，他就在那住了30年了。
使用被动语态应留意的几个问题：
1. 不及物动词无被动语态。
What will happen in 100 years.
The dinosaurs disappeared about 65 million years ago.
2. 有些动词用主动形式表示被动意义。
This pen writes well.
This new book sells well.
3. 感官动词或使役动词使用省略to的动词不定式，主动语态中不带to ，但变为被动语态时，须加上to 。 例：make somebody do something→somebody+ be +made to do something
see somebody do something→somebody +be +seen to do something
A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by. The boss made the little boy do heavy work.→The little
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