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初中英语课外辅导:be 动词的自述
http://www.sina.com.cn 2004/07/28 15:50  英语辅导报

  我是be动词,来自英语王国,别看我只由两个字母组成,可我的变身(am, is, are等)都非等闲之辈。说句大话吧,我不但有变身本领,有时在句子里缺我还真不行。我希望通过自述,能帮助大家更好地了解我,让我们成为好朋友,不要把我用错了,特别是在关键时刻可别把我给忘了!

  1. 通常我的三种变身是am, is, are。你们一定见过吧。知道我的变身规则吗?让我告诉你们吧,"I后am, you后are, is跟着他、她、它,三单后面用is,复数后面要用are。"也就是说:我随着主语而变化,在I后我变成am,在you后我变成are,在第三人称单数后面我就变成is,而在复数后面一定变成are。

  2. 在句中我可以帮助构成否定句和疑问句。在句中找到我的变身后在其后面加not便将句子变成了否定句。如:These are English books. →These are not English books.。把我调到主语前面可以构成疑问句,不过变化时你们可要注意字母大小写的变化、人称的变化和句末符号。如:He is my brother. →Is he your brother?

  3. 一般情况下,我是很愿意与前面主语合作的,我们可以缩写。如:I am =I'm; you are =you're; he is =he's; it is =it's, the girl is =the girl's等。但你可不要把我和this, these, those掺和在一起,我和他们是合不来的。此外,否定句中我也常与not合写,如:is not =isn't; are not =aren't。但我的变身am可不愿意与not缩写。特别需要注意的是,在肯定答语的句末我是不能与主语缩写的。如不可说 "Yes, it's."。 而在否定答语中,我可以与后面的not缩写但am只可与主语I缩写。不与其后的not缩写。

  另外,当我前面的主语是两个或两个以上的人或事物时,就不能缩写。即你不可以说 "He and I're in Class 2." 。俗话说"强扭的瓜不甜",你必须说 "He and I are in Class 2."。可不要违背我的原则,把我用错了。

  4. 在你们目前所学的范围内,我是不与实义动词为伍的。你不能说 "I'm think so.";也不能说 "I'm not know." 这一点你们以后会懂的。另外,我也可以位于句首,表示向别人提出要求。如:Be a good student! 做个好学生!

  5. 翻译或造句时千万别忘了我。一般说来,在汉语句子中有我出现时,你们往往不会忘记我,如"他们是老师"。译为 "They are teachers." 但是,当汉语中没我出现时,你们常会受汉语影响,把我给忘了。如你们中有些人会把"他在家。"译为 "He at home."。 不知不觉中犯了忘记我的错误,现在知道缺我不行了吧!上句的正确译法为: "He is at home."。

  OK. 今天就聊到这儿,以后见面的机会多着呢!

  [热身训练]

  I. 用be动词的适当形式填空。

  1. He________a teacher. His name________Li Ying.

  2. I________a girl. My name________Wei Hua.

  3. Who________that boy? He________Liu Hua.

  4. How old________you? I________ten.

  5. What________this? It________a desk.

  6. What________its name? Its name ________Polly.

  7. ________you in Row Three? Yes, I ________.

  8. ________Jim a boy? Yes, he ______.

  9. ________it a cat? Yes, it________.

  10. You________a boy. I________a boy, too.

  11. Kate's father________a worker.

  12. Mary and Ann________girl students.

  13. Jim's sister and I________in Row Three.

  14. Who________the boys in the room?

  15. Lucy's mother and father________not at home.

  II. 判断下列句子中的缩写有无错误,正确的打"√",错误的在后面括号内改正过来。

  1. This's a pencil. It's his pencil. ( )

  2. Are these your apples? No, they're not. ( )

  3. Those're not eggs. They're oranges. ( )

  4. Who's that boy? He's Lin Tao. He's my friend. ( )

  5. I'm a teacher. My name's Gao Hui. ( )

  6. Are you in Class 6, Grade 1? Yes, I'm. ( )

  III. 根据要求改写下列句子。

  1. Is she an English girl? Yes, she is.(改为复数句子)

  2. It isn't an apple tree. (改为复数句子)

  3. Those are Chinese buses. (改为否定句)

  4. They are our new coats. (改为一般疑问句)

  5. Jim is on duty today. (对划线部分提问)

  6. My brother is fifteen. (对划线部分提问)

  参考答案:

  I. 1. is, is 2. am, is 3. is, is 4. are, am 5. is, is 6. is, is 7. Are, am 8. Is, is 9. Is, is 10. are, am 11. is 12. are 13. are 14. are 15. are

  II. 1. This's→This is 2.They sre not→they aren't 3. Those're→Those are 4.√ 5.√

  6. I'm→I am

  III. 1. Are they English girls? Yes, they are. 2. They aren't apple trees. 3. Those aren't Chinese buses. 4. Are they your new coats? 5. Who's on duty today? 6. How old is your brother?

  (文/李建高;英语通初一版03~04学年第07期;版权归英语辅导报社所有,独家网络合作伙伴新浪教育,未经许可,不得以任何形式进行转载。)




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