"牛津7A语法练习题2精选"
本文档是牛津英语新教材重要语法项目专项练习，旨在帮助学生熟悉现在进行时的语法结构和相关的疑问句、否定句等。下面是对标题、描述、标签和部分内容的解释和知识点总结：
一、现在进行时的语法结构
* 现在进行时的基本结构为：be doing（is/are/am doing）
* 现在进行时用于描述当前正在进行的动作或状态
二、否定句和疑问句
* 否定句的结构为：not + be doing（is not/am not/are not doing）
* 一般疑问句的结构为：be + doing？（is/are/am doing？）
* 肯定回答和否定回答的结构分别为：be doing/ not be doing
三、现在进行时的连词成句
* 使用现在进行时连词成句可以描述当前正在进行的动作或状态
四、特殊疑问句
* 对于现在进行时的特殊疑问句，可以使用what、where、who、how等疑问词
五、现在进行时的应用
* 现在进行时可以用于描述当前正在进行的动作或状态，也可以用于描述计划或安排
六、练习题解析
1. The boy is playing basketball.
否定句：The boy is not playing basketball.
一般疑问句：Is the boy playing basketball？
肯定回答：Yes, he is.
否定回答：No, he is not.
对“is playing basketball”提问：What is the boy doing？
2. They are singing in the classroom.
否定句：They are not singing in the classroom.
一般疑问句：Are they singing in the classroom？
肯定回答：Yes, they are.
否定回答：No, they are not.
对“are singing”提问：What are they doing？
3. 仿照例句造句：
Model: read, a book --What are you doing? --I'm reading a book.
1). read a new book --> What are you doing? --> I'm reading a new book.
2). clean the blackboard --> What are you doing? --> I'm cleaning the blackboard.
4. she, the window, open, now. --> She is opening the window now.
5. The birds are singing in the tree. --> What are the birds doing? --> They are singing in the tree.
6. is, who, the window, cleaning? --> Who is cleaning the window?
7. The children are playing games near the house. --> What are the children doing? --> They are playing games near the house.
8. She is closing the door now. --> She is not closing the door now.
9. You are doing your homework. --> I am doing my homework.
10. they, the tree, sing, now, under. --> They are singing under the tree now.
11. The Young Pioneers are helping the old woman. --> Are the Young Pioneers helping the old woman？
七、选择题解析
1. 我在照看孩子. --> A) I am looking after the baby.
2. _____friend's making______a kite. --> B) My, my
3. Is the woman ______ yellow your teacher? --> C) wearing
4. Look!The twins_____their mother do the housework. --> C) are helping
5. _____are the birds doing? They are singing in a tree. --> B) What
6. Is she____something? --> B) eating
7. 你在干什么? --> What are you doing?
