【句子】
the mechanism by which brain cells store memories is __clearly understood.
a. none b. no c. not d. nor
解析】高中英语否定句的类型:
1. 一般否定句的构成方式是在功能词(即系动词,助动词或情态动词)后加否定词not等形式。常译为"不是"或"非"。
it's a long time since i saw my sister.
why not visit her this weekend?(2007,全国i,24)
2 部分否定句的构成方式是由含有以下表全部概念的词all/ everything/ always/ entirely/ altogether/ everywhere/ everybody/ both 等加否定词not构成。注意:在否定句中只要有以上的词,即可视为部分否定,而不管否定词在句中的位置。
常译为"不是一切/不总是……都……"刘锐诚,2006)
i agree with most of what you said, but i don't agree with everything .(1997,全国,14)
强调"我不完全同意你讲的一切"
3 全部否定句可以用no, none, nothing等否定词做主语或定语,后面加上肯定式谓语构成。意思多为"一切都……不是……"
how do you find your new classmates?
most of them are kind, but _none_is so good to me as bruce.(2008,福建,21)
此句的回答可还原为:most of them are kind, but none of them is so good to me as bruce.
4.半否定句主要是通过seldom, hardly, rarely,等半否定意义的词所构成的否定句。意思为:很少,几乎不……
i must be getting fat. i can _hardly__do my trousers up.(2004,全国ii,33)
5.延续否定句指的是前面已经有一个否定句,后面又追加一个或数个否定句,这种追加的否定句可称为延续否定句。常翻译为:不……也不……
there is a feeling in me _that___we will never know what a ufo is-not ever.(2002,上海,35)
6.双重否定句指的是在一个句子**现两次否定的句子,该结构翻译为:"没有什么。就不/没有"。
it's not _a_ good idea to drive for four hours without _a__ break.
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