高三英语语法知识点总结.docx

高三英语语法知识点总结.docx高三英语语法知识点总结
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ar that( 唯恐 )，in orderthat, on condition that, if only( 要是 就好了 )等。
注意： lest, for fear that 和 in case 引起的从句中谓语动词多用 should+ 动词原形，但也可以不用虚拟语气，而用动词的陈述
语气形式。例如： The foreign teacher spokeslowly in case we
misunderstood him 这位外籍教师说得很慢以免我们误解。
(3)通过 上下文 及内在含 义，句 中往往有 but,otherwise,
unfortunately 等类似转折词。
without, but. but for, otherwise 引起的短语或句子常暗含着
含蓄条件。例如：
Without you,1 would never know him
But for your oooperation, we wouldn't have done it
③But that she was afraid, she would h ave said no. .
i would be most glad to help you, butI am busy now.
I would have come to the party yesterday, but ljwas working.
I am busy now, otherwise l would do you the favor!
高三英语语法知识点 3
一、就近一致原则
or ， not only...but also... ，neither...nor... ，either...or...，
whether...or... ，not...but... 等连接两个或两个以上的并列主语时，
通常根据就近一致原则， 谓语动词要与离它最近的主语在数上保
持一致。
Neither his parents nor I am able to persuade him to change
his mind.
引导一个句子而主语又不止一个时，通常根据
就近原则，谓语动词要与离它最近的主语在数上保持一致。
Here is a ruler ， a few pencils and two copybooks.
二、意义一致原则

(1)表示学科的名词以及 works( 工厂 )，news(消息 )等作主语
时，虽然本身为复数形式，但表示单数意义时，谓语动词仍用单
数。
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