1 be动词的意思be动词意思和用法很多，一般的意思是：是，此种用法，有多种变化形式，is，am，are，was，were，being，been，to be.另外，be动词还有成为的意思。根据句子中不同的人称、数和时态，应该选择相应的be动词。 要看句语的时态: 如果是一般过去时,就用was/were 如果是一般现在时,就用am/is/are 如果是一般将来时,就用will be 然后看主语的人称及复数形式: 一般过去时： 第一人称和第三人称的单数形式，则用was 第一人称和第二人称、第三人称的复数，则用were 一般现在时： 第一人称单数形式，用am 第三人称单数形式，用is 第一人称复数、第二人称、第三人称的复数形式，则用are 一般将来时： will be 口诀：一般时态有关be动词的口诀 我I用am，你you用are，is他/她/它，单数is 复数are 他们they 也用are 你们you 也用are 2 be动词的用法 be （be/is/are/am/was/were) [bi:] 现在时 I am, you are, he is, we are, you are, they are （缩略式 I'm, you're, he's, we're, you're, they're）, （否定缩略式 I'm not, isn't, aren't）, 过去时 I was, you were, he was, we were, you were, they were （过去时否定缩略式 wasn't, weren't）,过去分词been,现在分词being 英语的“be”是个特殊动词；有些语言，如马来文等，并没有“be”这样的动词。 “Be”除了原形的“be”之外，还有另外七种形式：am, is, are, been, being, was, were. 在句子中，“be”可以是主动词(The Principal Verb)或助动词(The Auxiliary Verb) 3 例句对照 【当做主动词时，“be”在性质上属于接系动词(The Linking Verb), 后面要有名词、形容词、地方副词或短语作补足语(The Complement)。】例如： The man is a science teacher. Mary's new dresses are colourful. 玛丽的新衣服色彩鲜艳。 I have been there before. 我以前去过那里。 My mother is in the kitchen now. 母亲现在在厨房。 【这四个都是陈述句，可以变成疑问句，方法简单，把主语和“be”或助动词对换位置即可： Is the man a science teacher? Are Mary's new dresses colourful? Have I been there before? Is mother in the kitchen now? 【当“be”要在祈使句中出现时，它必须借助 助动词“do”或“don't”之助，如： Don't be silly! Do be obedient! Don't be a fool! 【“Be”有两种缩写法，如下： He's not...../He isn't.... You're not...../You aren't... 【但“am + not”的缩写法只有一个： I'm not. 有人用“ain't”, 但这并不是标准英语。 谈过了“be”作主动词的功能，现在看看“be”作助动词时，有些什么用法： 【1.】“Be + 现在分词”以组成进行式时态(Continuous Tenses)，如： Tony's maid is washing his new car. The children are playing in the field. Samuel was eating when I came in. We have been living here since 1959. 【2.】“事/物人 +Be + 过去分词”以组成被动语态(The Passive Voice),如： Her money in the drawer was stolen A number of good jobs are taken up by foreigners David studied in Taiwan but has been trained as a language lecturer in America Can all the wonderful birds be found in our Bird Park The disobedient boy was told to stand out- side the classroom Steps are being taken to reduce traffic con- gestion during peak hours Dishonest students will be immediately dealt with be动词有时在句中的成分是助动词，句中动词用现在分词，例如： I am reading a book now. 我正在读书。 He is watching TV now. 他正在看电视。 |
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