小学BE动词用法.doc

英语语法顺口溜：be动词的用法口诀be 的用法口诀我用am，你用are，is连着他，她，它;单数名词用is，复数名词全用are。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。be动词的用法：be (be/is/are/am/was/were)vi现在时 I am, you are, he is, we are, you are, they are (缩略式 Im, youre, hes, were, youre, theyre), (否定缩略式 Im not, isnt, arent), 过去时 I was, you were, he was, we were, you were, they were (过去时否定缩略式 wasnt, werent), 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)例句对照【当主动词时，“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：1. The man is a science teacher.这个男子是一位科学教师2. Marys new dresses are colourful.玛丽的新衣服色彩鲜艳3. I have been there before.我以前去过那里4. My mother is watching TV in the room.母亲现在在客厅看电视【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：5. Is the man a science teacher?6. Are Marys new dresses colourful?7. Have I been there before?8. Is mother in the kitchen now?【当“be”要在祈使句中出现时，它必须借重助动词“do”或“dont”之助，如：9. Dont be silly!10. Do be obedient!11. Dont be a fool!【“Be”有两种缩写法，如下：12. Hes not./He isnt.13. Youre not./You arent.【但“am + not”的缩写法只有一个：14. Im not.有人用“aint”, 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：15. Tonys maid is washing his new car.16. The children are playing in the field.17. Samuel was eating when I came in.18. We have been living here since 1959.【2.】“情态动词+Be + 过去分词”以组成被动语态(The Passive Voice),如：19. Her money in the drawer was stolen.20. A number of good jobs are taken up byforeigners.21. David studied in Taiwan but has been trained as a language lecturer in America.22. Can all the wonderful birds be found in our Bird Park?23. The disobedient boy was told to stand out- side the classroom.24. Steps are being taken to reduce traffic con- gestion during peak hours.25. Dishonest students will be immediately dealt with.