And, but和however的用法与何区别

发布时间:2012-03-13 16:28:08

and,but 和 however 三个词都在句中起连接作用。现就它们的用法浅析如下: 一、and 作并列连词用。 1. 用来连接两个相同的句子成分。这两个句子成分可以是单词、短语或分句。 and 连接两个分句时,分句本身都有自己的主语。如果第二个分句的主语与第一个分句的主语相同,则第二个分句中的主语可以省略。例如: (1) When and where were you born? 你出生在何时何地? (2) John and Tom are our good friends. 约翰和汤姆都是我们的好朋友。 (3) You are so big and the jar is so small that it could hardly hold one of your feet. 你的个子这么大,坛子这么小,甚至连人的一只脚也容纳不下。 (4) She looked at Mr Hare and went on. 她看了看野兔先生,然后继续向前走。 2. 用 and 连接两个相同的词,意在强调或表示动作多次反复。例如: (5) They talked and talked until late at night. 他们谈啊,谈啊,一直谈到深夜。 (6) There are books and books on the shelf. 书架上除了书还是书。 3. 当 and 用来连接两个动词时, and 后面的动词在意义上表示目的。在美国口语中, go (or come) and see 中的 and 一般都被省略。例如: (7) Go and (= to) tell him the news. 你去把这个消息告诉他。 (8) Try and (= to ) get the work done today. 要设法在今天干完这项工作。 (9) I'll write and thank him. 我将写信感谢他。 (10) You'd better go (and) see a doctor. 你最好去看看医生。 二 . but 作为并列连词,在意义上起转折作用。 but 前后的两个句子或短语在意义上形成鲜明对照。 but 用来连接两个分句或两个较长的短语时, but 前面一般要加逗号。例如: (11) He is old but strong. 他年纪虽大却很强壮。 (12) Learning the guitar isn't difficult, but you will have to practise. 学弹吉他并不难,但是你得练习。 (13) He tried, but could not do it. 他试过,但是干不了。 三 . however 意为“可是,然而,尽管”,较 but 的意味弱,通常用作连接性状语。其位置可以在句首,句末或插入句中。当其被用来对照两个分句时,中间需要有一个逗号;当它被用作句子的插入语时,则前后应各有一个逗号。例如: (14) However, we need not do that now. 可是,我们现在不需要做那个。 (15) He said it was so; he was mistaken, however. 他说是那样的,然而他却弄错了。 (16) His friends, however, had other ideas. 然而他的朋友们却另有见解。 注: however 也可用作连接副词,意为“不论怎样”,用来引导让步状证从句。例如: Howeve r we may do it, it will be a difficult job. 无论雪下得多大,我们都必须回去。 练习:用 but, and 和 however 填空: 1. I'd like to go with you, ________, my hands are full. 2. I'm sorry, ________ I won't be able to come tonight. 3. We must finish the job in time ________ hard it is. 4. They will supply food ________ drink on Saturday. 5. It looked like rain. ________, it is clear now. 6. Building has started ______ the project will be finished by 2000. Key: 1. however 2. but 3. however 4. and 5. However 6. and however与but的区别在于,前者较为正式,but不能置于句首,而however 可以置于句首,句中或句末。置于句中时,前后用分号隔开的情况较多。 (1)however在句中是用作副词,作“然而,但是,不过”解,用于言及既成事实时表示转折,通常用逗号分开,可以放在句首,也可以放在句中。 His first response was to say no. Later, however, he changed his mind. 他最初的反应是不同意,但是后来他改变了主意 (2)but是连词,作“但是,然而”解,连接两个并列的分句。 Tom went to the party, but his bros didn’t. 汤姆去参加聚会了,但他的兄弟没去 My name is Robert, but most of my friends call me Bob for short. but/however都表示转折或让步 but 用来引出微弱的相反的意见,是口语常用词。 Nearly everybody enters for ‘The Nicest Garden Competition’ each year, but Joe wins every time. 年年几乎大家都报名参加“最佳花园竞赛”,但每次获胜的都是乔。 Sally was amused, but I was very embarrassed. 萨莉很开心,但我却很尴尬。 however 比 but 的词义还要弱些,并不直接引出相反的意见,因此常用作插入语。 You will be lucky if he lets you go without a ticket. However, this does not always happen. 他如果不给你一个违章通知单就放你走,你就是运气好。不过,这种事也并不总是发生的。 The most surprising thing about it, however, is that it can land anywhere… 不过,关于这架飞机的最使人吃惊的事情是,它可以在任何地方着路…… 一 . and 作并列连词用。   1. 用来连接两个相同的句子成分。这两个句子成分可以是单词、短语或分句。 and 连接两个分句时,分句本身都有自己的主语。如果第二个分句的主语与第一个分句的主语相同,则第二个分句中的主语可以省略。例如:   ( 1 ) When and where were you born? 你出生在何时何地?   ( 2 ) John and Tom are our good friends. 约翰和汤姆都是我们的好朋友。   ( 3 ) You are so big and the jar is so small that it cou ld hardly hold one of your feet.    你的个子这么大,坛子这么小,甚至连人的一只脚也容纳不下。   ( 4 ) She looked at Mr Hare and went on. 她看了看野兔先生,然后继续向前走。   2. 用 and 连接两个相同的词,意在强调或表示动作多次反复。例如:   ( 5 ) They talked and talked until late at night. 他们谈啊,谈啊,一直谈到深夜。   ( 6 ) There are books and books on the shelf. 书架上除了书还是书。   3. 当 and 用来连接两个动词时, and 后面的动词在意义上表示目的。在美国口语中, go (or come) and see 中的 and 一般都被省略。例如:   ( 7 ) Go and (= to) tell him the news. 你去把这个消息告诉他。   ( 8 ) Try and (= to ) get the work done today. 要设法在今天干完这项工作。   ( 9 ) I'll write and thank him. 我将写信感谢他。   ( 10 ) You'd better go (and) see a doctor. 你最好去看看医生。 二 . but 作为并列连词,在意义上起转折作用。 but 前后的两个句子或短语在意义上形成鲜明对照。 but 用来连接两个分句或两个较长的短语时, but 前面一般要加逗号。例如:   ( 11 ) He is old but strong. 他年纪虽大却很强壮。   ( 12 ) Learning the guitar isn't difficult, but you will have to practice.    学弹吉他并不难,但是你得练习。   ( 13 ) He tried, but could not do it. 他试过,但是干不了。   三 . however 意为“可是,然而,尽管”,较 but 的意味弱,通常用作连接性状语。其位置可以在句首,句末或插入句中。当其被用来对照两个分句时,中间需要有一个逗号;当它被用作句子的插入语时,则前后应各有一个逗号。例如:   ( 14 ) However, we need not do that now. 可是,我们现在不需要做那个。   ( 15 ) He said it was so; he was mistaken, however. 他说是那样的,然而他却弄错了。   ( 16 ) His friends, however, had other ideas. 然而他的朋友们却另有见解。   注: however 也可用作连接副词,意为“不论怎样”,用来引导让步状证从句。例如:   However we may do it, it will be a difficult job. 无论雪下得多大,我们都必须回去。   练习:用 but, and 和 however 填空:   1. I'd like to go with you, ________, my hands are full.   2. I'm sorry, ________ I won't be able to come tonight.   3. We must finish the job in time ________ hard it is.   4. They will supply food ________ drink on Saturday .   5. It looked like rain. ________, it is clear now.   6. Building has started ______ the project will be finished by 2000.

And, but和however的用法与何区别

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