人教版英语七年级下册Unit 4第三课时Section A (Grammar Focus-3c)教案

Unit 4Don’t eat in class!
The Third Period
Section A (Grammar Focus-3c)
I.Teaching aims
Important sentences:
①—Can we eat in the classroom?
—No,we can’t,but we can eat in the dining hall.
②What do you have to do?
③Don’t fight.
II.Important points:
1.祈使句
2.情态动词can,can’t和have to的用法
III.Difficult points:
1.祈使句
2.情态动词can,can’t和have to的用法
IV.Teaching process
Step 1 Lead in
Teacher:Can we listen to music in class?
Students:No,we can't.
Teacher:Do we have to arrive school on time?
Students:Yes,we do.
...
Step 2 Work on Grammar Focus
1.教师通过板书呈现大量祈使句及含can,can’t,have to的句型,让学生观察讨论。

2.学生先自己阅读Grammar Focus的内容。

老师详细讲解语法要点。

Step 3 Work on 3a-3c
1.认真观察图片,用所学的祈使句句型为学校图书馆写出一些规定,写完后小组内交流,教师抽查点评。

2.利用所给的单词或短语来组成关于学校规定的句子,然后根据学校的实际情况来回答。

请学生在黑板上展示答案。

3.写五条理想学校的校规,然后和其他同学分享,选出最受欢迎的校规。

4.利用所选出的校规来写一篇小短文。

Language points
1.Don’t fight.不要打架。

（教材第21页）
fight此处用作动词，意为“打架；战斗”。

e.g.:Stop fighting!The teacher is coming.别打了，老师来了。

【拓展】fight的常见搭配
fight against sb.与某人搏斗/打仗/作战；fight (with sb.) about/over sth.（与某人）就某事争辩；fight for sth.努力争取，为……而斗争。

2.Can we eat in the classroom?我们可以在教室里吃东西吗？（教材第
21页）
情态动词can在本句中表示请求，意为“可以”。

其一般疑问句形式为“Can+主语+动词原形+其他?”；肯定回答用“Yes,... can.”，否定回答用“No,... can’t.”。

e.g.:—Can I use your bike?我可以用用你的自行车吗？
—Yes,you can.是的，你可以。

3.What do you have to do?你们必须做什么？（教材第21页）
have to为固定短语,意为“不得不”,强调由客观原因造成不得不去做某事,有have to和has to两种变化,在变否定句和疑问句时要借助助动词do,does。

e.g.:He has to do the dishes after dinner.他晚饭后必须洗餐具。

Does she have to do her homework before dinner?她必须晚饭前做作业吗？
Exercise
一、单项选择。

1.—What do you have to do?
—_____
A.I have to clean my room.
B.I have a nice room.
C.I clean my room.
D.I like my room.
2.He _____ do his homework in the evening.
A.have to
B.has to
C.has
D.must to
3.Tina has _____ uncle.He often wears _____ uniform.
A.a;a
B.an;an
C.a;an
D.an;a
4.—Tom, you shouldn't ____ your cat to school．—Sorry, I won't do it again.
A.take
B.bring
C.give
D.get
5.—Wow!What a ______ park! You can hardly hear
the traffic!
—Yes, and no one is shouting.
A.noisy
B.busy
C.crowded
D.quiet
二、按要求完成下列各题。

1.He has to go to work at 7:30.（改为否定句）
He _____ _____ to go to work at 7:30.
2.Please play the piano after school.（改为否定句）Please _____ _____ the piano after school.
3.You mustn’t listen to music in class.（改为祈使句）_____ _____ listen to music in class.
4.She does her homework after supper.（改为一般疑问句）_____ she _____ her homework after supper？
Homework
1.Review the words and phrases.
2.Read and recite Grammar focus.
板书设计
Unit 4Don’t eat in class!
The Third Period
Section A (Grammar Focus-3c)
be late for class上课迟到 in the dining hall在餐厅里 (be) on time准时
wear a hat戴帽子
a lot of rules很多规则
be quiet保持安静
have to不得不。