初中英语语法聚焦素材.docx

模块语法聚焦语法精讲(双栏排）连系动词be 的用法1. 连系动词be 有 am, is, are 三种形式，都表示“是”，在使用时要根据句子的主语来确定使用相应的系动词。在第一人称I后要用 am, 在第二人称you 后要用are, 在第三人称 he, she, it 及单数名词后要用is，而在复数名词的主语后要用are. I am Chinese. 我是中国人。He is a teacher.他是一名老师。They are American. 他们是美国人。The apples are delicious.苹果很好吃。2. 含有be 动词的一般现在时的否定和疑问句。含有be动词的句子在变否定句时，在be 后直接加not.; 变疑问句时，把be 提至句首。如果将上述例句在变为否定句和疑问句则变为: I am not Chinese.Are you Chinese? He is not a teacher.Is he a teacher? They are not American.Are they America? The apples are not delicious.Are the apples delicious?注意：（1）在变一般疑问句时将第一人称变为第二人称。（2）如果句中有some, 将some变为any.3. 我们可以将be 动词的用法整理为一口诀：我（I）用am,你（you）用are，is连着他(he)，她(she)，它(it)。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。4. be动词有时可以与前面或后面的单词缩写。如： I am = Im; you are = youre; he is = hes; is not = isnt; are not = arent.语法专练一在横线上填入适当的be动词。1. I _from Australia.2. She _ a student.3. Jane and Tom _my friends.4. My parents _very busy every day.5. I _ at school.6. He _ at school.7. We _ students.8. They _ from China.9. Yang Ling _ eleven years old.10. Where _ your friends?二句型转换1. I am Wang Dong.(变为否定句)I _ _ Wang Dong.2. Helen is from England. (变为一般疑问句，并作肯定回答)_ _ from England?_, _ _.2. Im Chinese. (改为复数句子)We _ _.3. The books are on the desk.(变为一般疑问句)_ _ _on the desk?4. This is my eraser. （改成一般疑问句） _5. We are Andys classmates. (改为一般疑问句)Andys classmates?三单项选择题1. Are you in Class One?. A. Yes, Im notB. No, I amC. Yes, you are D. Yes, I am2. Is Jim twelve years old?_ . Hes fourteen.A. Yes, he isB. No, he isntC. Yes, he isnt D. No, he is一、答案：1. am 2. is 3. are 4. are 5. am 6. is 7. are 8. are 9. is 10. are二、答案：1.