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选修7《Grammar》PPT课件优质课下载
1. a.The man was not able to speak until at least thirty seconds had passed.
b. Not until at least thirty seconds had passed, was the man able to speak .
2. a.The boy had no sooner spoken these words than the warden hit him on the head with the soup spoon.
b. No sooner had the boy spoken these words, than the warden hit him with the soup spoon.
3. a. Oliver only then understood his situation.
b. Only then did Oliver understand his situation.
4. a. I have seldom seen such courage .
b．Seldom have I seen such courage.
一、概念: 英语句子通常有两种语序: 一种主语在前,谓语在后, 称为自然语序, 另一种谓误在前,主语在后, 称为倒装语序。
二、相关知识点精讲 按“主语+ 谓语” 这种顺序排列的句子是陈述语序。如果排列顺序变为“谓语（ 或谓语一部分）+主语”, 就是倒装。
Inversion
倒装句分为： 完全倒装: 整个谓语移至主语前面叫完全倒装。 部分倒装: 只把助动词、系动词或情态动词放在主语之前叫部分倒装。
For examples:
(完全倒装)
Ahead sat an old woman.
前面坐着一个老妪。
(部分倒装)
Never have I seen such a terrible performance.
我从未见过如此糟糕的表演。
谓语
主语
助动词
主语
谓语
Look at the following sentences and try to find the differences between them.