Unit 4 Don’t eat in class. The Second Period.

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1 Unit 4 Don’t eat in class. The Second Period

2 Grammar Focus Don’t run in the hallways. Don’t fight.
What are the rules? We must be on time for class. Can we eat in the classroom? No, we can’t, but we can eat in the dining hall. Can we wear a hat in class? Yes,we can. / No,we can’t. Does he have to wear a uniform at school? Yes, he does. / No, he doesn’t. What do you have to do? We have to be quiet in the library.

3 Grammar Focus 阅读Grammar Focus部分，完成下列句子。 1. 不要在楼道里跑。
______________________________ 2. 不要打架。 ____________________ 3. 有什么规则？ 4. 我们必须按时上课. _______________________________ Don’t run in the hallways. Don’t fight. What are the rules? We must be on time for class.

4 5. 我们可以在教室里吃东西吗？ _____________________________ 6. 不能。但我们可以在餐厅里吃东西。 ________________________________ 7. 我们可以在上课的时候带帽子吗？ Can we eat in the classroom? No, we can’t, but we can eat in the dining hall. Can we wear a hat in class?

5 __________________________________ 9. 是的，必须。/ 不，不必。
8. 他在学校里必须穿校服吗？ __________________________________ 9. 是的，必须。/ 不，不必。 _______________________________ 10. 你们必须做什么？ 11. 在图书馆里我们必须保持安静。 _________________________________ Does he have to wear a uniform at school? Yes, he does. / No, he doesn’t. What do you have to do? We have to be quiet in the library.

6 探究乐园 一、祈使句 1. 用法：一般以动词原形开头，表示请 求、命令、建议、警告、禁止等语气 的句子。在祈使句中，通常省略句子
主语第二人称you。

7 2. 句子结构 (1) 肯定句：__________+ 其他 在餐厅里吃东西。 ________________________________ 在音乐教室里听音乐。 骑自行车去上学。 _________________________________ 动词原形 Eat in the dining hall. Listen to music in the music room. Ride the bike to school.

8 (2) 否定句: _____ + _________+ 其他 不要和同学们打架。
_______________________________ 不要在教室里打篮球。 ________________________________ Don’t 动词原形 Don’t fight with your classmates. Don’t play basketball in the classroom.

9 以let引起的句子 ____+ sb.+动词原形 让我们步行去上学吧。 _________________
(4) No + 动词-ing形式。表示“禁止、规劝” 禁止停车！No Parking. 禁止吸烟！No Smoking. Let Let’s walk to school. 学科网

10 3a. Write the rules for the school library.
Library Rules Don’t talk. 1. 2. Don’t eat. 3. Don’t listen to music. 4. Don’t take photos.

11 3b. Use the words to make questions about the rules.
Be quiet? Q: Does she have to be quiet in the library? (she/have to/in the library)? A: Yes, she does. Eat? Q:______________________________________________________ (he/have to/in the dining hall)? A:__________________ Does he have to eat in the dining hall? Yes, he does.

12 Listen to music? Wear a hat?
Q:______________________________________________________ (we/can/in the hallways)? A:__________________ Can we listen to music in the hallways? No, we can’t. Wear a hat? Q:______________________________________________________ (we/can/in the classroom)? A:__________________ Can we wear a hat in the classroom? No, we can’t.

13 3c. Make up five cool rules for your dream school
3c. Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School! We can eat in class. We don’t have to come to school every day. … At my dream school, we don’t have to come to school every day. We …

14 At my dream school, we don’t have to come to school every day. …
We can eat in class. …

15 We can listen to music in class. …
We don’t have to wear school uniforms. …

16 We can eat in the classroom. …
We don’t have to do homework. …

17 Report Great! Jim’s school is the coolest.
At my dream school, we don’t have to come to school every day. We can eat in the classroom. We can listen to music in class. We don’t have to do homework. We don’t have to wear school uniforms at school. Great! Jim’s school is the coolest.

18 Grammar 1. 祈使句是表示请求、命令、建议、警告、 禁止等的句子; 通常省略主语you; 句中谓语
1. 祈使句是表示请求、命令、建议、警告、 禁止等的句子; 通常省略主语you; 句中谓语 动词用动词原形; 句尾一般用降调; 祈使句的 开头是动词原形。 祈使句有肯定和否定两种： e.g. Look out!  小心！ Wait here for me!  在这等我！

19 Come in, please! 请进！ 　 Sit down, please. 请坐。 　 Let's go home. 我们回家吧。 否定的祈使句是在动词前(即句首)加Don't. e.g. Don't talk in class! 不要在课常上讲话！ Don't open the window! 别开窗！ Don’t be late for school. 上学别迟到 ! Don’t smoking! 别吸烟!

20 2. 情态动词have to 的用法 have to意思是“必须、不得不”, 它侧重于客观上的必要 外界的权威。
主语是第三人称单数时, 用has to) 如： We have to wear sneakers for gym class.  在体育课上, 我们必须穿运动鞋。 Tom has to practice the guitar every day.  汤姆每天必须练习弹吉它。

21 2) 否定形式: 主语＋don’t have to＋动词原形
＋其他(一般现在时, 主语是第三人称单数时, 用doesn’t have to) e.g. Nick doesn't have to wear a uniform.   尼克不必穿制服。

22 3) 疑问句: Do (Does)＋主语＋ have to ＋动词原形＋其他 如: --Do you have to stay at home on weekends?  --Yes, I do. / No, I don't.  周末你必须呆在家里吗？ 是的, 我必须。/ 不, 我不必。

23 3. 情态动词can的用法 1) 表示能力, “会”, “能”(在第一单元中已经学习 这种用法) 例如:
这种用法) 例如: Can you play the guitar? 你会弹吉它吗？ Judy can speak a little Chinese.  朱蒂会说一点中文。 I can dance and sing. 我能唱歌又能跳舞。

24 2) 表示允许、许可, “可以”、“能” (在这一课
中新学的词义) 例如: Can the students run in the hallways?  学生们可以在走廊上跑吗? We can eat outside. 我们可以在外面吃东西。 Can I come in? 我能进来吗?

25 注意: 同样是情态动词, can和have to的用法
是有区别的, 和大部分情态动词一样， can在否定句中, 直接在can后加上not， 在疑问句中, 把can放到主语前面， 并且没有人称和数的变化。

26 3. class 班, 课 in class 　在课堂上 have classes 　上课 be late for class 上课迟到 4. Don’t fight.　 不要打架． fight 战斗, 斗争, 作战 fight with sb.　同某人打架 fight the fire　救火

27 Ⅰ. 词汇 1.You must not break the _______ (规定).
2.We can’t make too much noise in the _________ (大厅走廊). 3.We have to wear ____________ (运动鞋) for gym class. 4. He _______ (步行) two kilometers to work every morning. 5. She has to ______ (洗) the dishes after meals. rules hallways sports shoes walks wash

28 Ⅱ. 把下列祈使句改成否定句 1. Sit down. 2. Come in. Don’t sit down.
3. Eat at home. Don’t sit down. Don’t come in. Don’t eat at home.

29 Ⅲ. Form sentences. 组句 1. late, don't, for school, arrive
2. music, listen to, in the classroom, don't 3. eat, can't, in the classroom, we Don’t arrive late for school. Don’t listen to music in the classroom. We can’t eat in the classroom.

30 Ⅳ. 根据校规补全对话。 No, we can’t. No, we can’t. Yes, we can.
1.Can we play football in the hallways? 2.Can we eat in the classroom? 3.Can we play basketball on the playground? No, we can’t. No, we can’t. Yes, we can.

31 4. Can we listen to music in the music room?
5. Can we talk loudly in the classroom? Yes, we can. No, we can’t.

32 Ⅴ. 用can和can’t填空 can’t can can’t can can
1. Mr Green ______ smoke here, because there’s a sign on the wall. It says “No smoking.” 2. It’s very hot outside. You ______ wear a hat. 3. We ______ eat in the classroom, because it’s impolite to teachers. 4. I ______ go to bed after 11:00 on school night. 5. The students ______ read books and magazines in the library. can’t can can’t can can

33 Ⅵ. 用have to或has to填空 have to
1. We _______ clean our classroom after school. 2. She _______ make her bed after getting up. 3. It’s late. Mr. Beckman _______ go to work by car. 4. Emily and Peter join a music club. They ________ practice guitar every day. has to has to have to

34 3. 翻译句子： 不要在图书馆大声说话。 放学后不要看电视。 不要上课吃东西。 不要上学迟到。 不要在马路上踢球。 请把那本书给我。 你们必须早起床。

35 Thank You!