系动词be的用法.doc

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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date系动词be的用法系动词be的用法一系动词be的同法Be有am,is,are 我(I)用am 你(you)用are is连着他(he)她(she)它(it)我们(we)你们(you)他们(they)要用are 单数名词和不可数名词用is 复数形式要用are 变否定真容易be后not为标记变问句be提前,句尾问号要配全(?)应用时多注意缩写形式要牢记:Im=I am yo

2、ure=you are hes=he is shes=she is its=it iswere=we are youre=you are theyre=they are . .二There be句型1.构成:There be .句型表示的是 “某处有(存在)某人或某物”,其结构为There be(is,are,was, were )+名词+地点状语。例如:There are fifty-two students in our class.There is a pencil in my pencil-case.There was an old house by the river five ye

3、ars ago2 注意事项There be句型中be动词的形式要和其后的主语在人称和数上保持一致。如果句子的主语是单数的可数名词,或是不可数名词,be动词用“is”“was”。例如:There is a basketball in the box. There is a little milk in the glass.如果句子的主语是复数名词,be动词就用“are” “were”。例如:There are many birds in the tree. There were many people in the street yesterday. 如果有两个或两个以上的名词作主语,be动词要

4、和最靠近它的那个主语在数上保持一致,也就是我们常说的 “就近原则”。例如:There is an orange and some bananas in the basket. There are some bananas and an orange in the basket. 练习题(Be动词)一、在下面的短文中填上恰当be动词。I _ a girl. My name _ Mary. I _ in Class 2, Grade 7. I _ 12 years old. Here _ my family photo. Look! These _ my parents and those _ m

5、y grandparents. This boy _ my brother. He _ 15 years old now. That _ my cat, Mimi. It _ very lovely.二、在下面的题目中填上恰当的Be动词。(注意Be动词的时态)1. I _from Australia.2. She _ a student.3. Jane and Tom _my friends.4. My parents _very busy every day.5. _ there a Chinese school in New York?6. There _ some glasses on

6、it.7. There _many monkeys in the mountain. 8. There_ a beautiful garden in our school. 9. I _ at school just now. 10. He _ at the camp last week. 11. We _ students two years ago. 12. They _ on the farm a moment ago. 13. Yang Ling _ eleven years old last year.14. There _ an apple on the plate yesterd

7、ay.15. There _ some milk in the fridge on Sunday. 16. The mobile phone _ on the sofa yesterday evening.17. There _some water in the glass. 18. There _ some bread on the table. 19. Where _ your friends yesterday? 20. How old _ you last year? 21. Which dog _ yours? 22. Ten and two _ twelve.、二、句型转换: 1. They are doing housework .(分别改成一般疑问句和否定句) _ _2The students are cleaning the classroom . ( 改一般疑问句并作肯定和否定回答)_3. Tom is under the tree.(变为否定句) 4. The mouses teeth are sharp.(变一般疑问句并作肯定回答) 5. The skateboards are black.(改成否定句) -

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