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第29章 No的用法
本节知识点的概要
1.No的用法
1.1No的特点及作用
1.2No的具体用法
1.3No与Not的区别
2.No的长难句分析
1.No的用法
我们通常用no来表示否定,有时用来否定名词,有时否定动作,用法繁多。
1.1No的特点及作用
1)表示否定
2)两种词性
1.2No的具体用法
1)形容词(adj.)
a. 表示“一个或一点…也没有”
e.g. He has no children. / There is no hope.
b.修饰名词时,不能同时使用冠词、指示代词、物主代词以及 any, some, every 等不定代词,但可与数字或other连用
e.g. No two men think alike. / No other man could do it.
c.用于系动词之后,加强语气
e.g.The girl was no beauty. / He is no friend of mine.
d.固定结构、或用于警告、命令等标识
e.g.No pains, no gains. / No smoking!
2)副词(adv.)
a.用在回答问题的场合,表示“不”
e.g.No, I won't go to the casino.
b.用在比较级之前,表示“并不”
e.g.The weather today is no better than it was yesterday.
1.3No与Not的区别
a.no是形容词,放在可修饰的名词之前。假如名词前已有the, a(n), any, much, enough等词,则用副词not
e.g. I have no money.
I have not much money.
b. 在形容词或副词的比较级当中:用not属于一般比较结构,意为“比不上”或“不如”;用no则情况比较特殊,一般说来“no+形容词或副词比较级+than”所表示的意思是该形容词或副词的相反含义
e.g. John is not better than Tom. 约翰不如汤姆好。
John is no better than Tom. 约翰和汤姆一样不好
c.在某些系表结构中,用not只表示一般的否定,用no则语气较强,可译为“决不是”
e.g. He's not a poet. 他不是诗人
He's no poet. 他决不是诗人
2.No的长难句分析
However, no group or species can maintain its dominance indefinitely, and when, after over 200 million years, the age of dinosaurs came to a dramatic end about 65 million years ago, mammals began to flourish, evolving from relatively few types of small terrestrial animals into the myriad of diverse species, including bats and whales, that we know today.
==句子的结构分析,主干是no group or species can maintain its dominance indefinitely and mammals began to flourish.
==然而,任何群体或物种都不能无限期地维持其统治地位,当2亿多年后,恐龙时代在大约6500万
年前戏剧性地结束时,哺乳动物开始繁盛起来,从相对较少的几种小型陆生动物进化成包括我们今
天所知的蝙蝠和鲸鱼在内的无数不同物种。
“No,I won't ride with servicemen- ,”said my casually seditious father, as he slowed down and peered at a soldier and then resumed his full cruising speed,while I patriotically offended watched the stunned defender of my freedoms kicking at his duffle bag and getting smaller and smaller as planet Pontiac continued its fuming orbit.
==句子的结构分析,主干是No,I won't ride with servicemen- ,”said my casually seditious father.
==没有,我不会和军人一起坐车的。我的父亲漫不经心地说道,他放慢了速度,盯着一名士兵,然
后恢复了他的全速巡航,而我则充满爱国精神地进行了冒犯。他看着我的自由的捍卫者在震惊地踢
着他的行李袋,随着庞蒂亚克行星继续其冒烟的轨道而变得越来越小。
No clear-cut distinction can be drawn between professional and amateurs in science: exceptions can be found to any rule. Nevertheless, the word "amateur" does carry a connotation that person concerned is not fully integrated into the scientific community and, in particular, may not share its values.
==句子的结构分析,句子由多个主句构成。
==科学领域的专业人员和业余爱好者之间没有明确的区别:任何规则都有例外。然而,业余一词确
实意味着有关人员没有充分融入科学界,尤其是可能没有分享其价值观。
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