Unit 4 Don’t eat in class讲解与练习
讲解 一、词组 1.school rules 学校规章制度 2.break the rules 违反规章制度 3. have to do 不得不做 4. run in the hallways 在走廊上跑 5. in class 在课堂上 6. arrive late for class = be late for class 上课迟到
7. eat in the classroom 在教室里吃东西 8. listen to music in the music room 在音乐教室里听音乐
9. in the dining hall在餐厅 10. sports shoes/ meeting运动鞋/会 11. wear hats戴帽子 12. wear uniforms穿制服
13. eat outside 在外面吃 14. get up early 起床早 15. late at night 深夜 16. read in the sun 在太阳下看书
17. clean the bedroom打扫卧室 18. on school nights在校期间的晚上 19. practice (playing) the piano 练习弹钢琴[practice doing … 练习做…] 20. do (one's) homework 做（某人的）作业 21. be in bed 在床上
22. on weekends 每逢周末 23. too many rules 太多的规矩 24. meet friends 见朋友
25. be friendly to sb.对某人友好 26. wash clothes = do some washing洗衣服 27. the Children's Palace少年宫
28. make dinner 做饭 29. after school 放学后 30.gym class 体育课 31.by ten o’clock 十点之前
32. No talking. = Don't talk. 不要说话。
二． 重难点解析： 1. 情态动词have to 的用法，意思是"必须、不得不"，它侧重于客观上的必要和外界的权威。
（1）结构： 主语＋have to＋动词原形＋其他 （一般现在时，主语是第三人称单数时，用has to；句子是过去时，用had 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。
I had to get up at 5:00 am last Monday. 上周一，我不得不早上5点起床。
（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. 句子是过去时，用didn't have to） 如：Nick doesn't have to wear a uniform. 尼克不必穿制服。
We didn't have to do our homework at once. 我们不必马上完成作业。 （3）疑问句：Do （Does或Did）＋主语＋have to ＋动词原形＋其他 如：Do you have to stay at home on weekends? 周末你必须呆在家里吗？
Yes, I do. / No, I don't. 是的，我必须。不，我不必。
Did he have to go to bed by 11:00 last night? 昨晚，他不得不11点前上床睡觉吗？ 2. 情态动词can的用法 （1）表示能力，"会""能"（在第一册中已经学习这种用法） 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。 （2）表示允许、许可，"可以"、"能"（在这一课中新学的词义） 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？ 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。 3. hear，listen和sound都有"听"的意思，但三者是有区别的。 （1）hear"听说"，侧重于"听"的内容 I'm sorry to hear that you are ill. 听说你生病了，我很难过。 I never heard such an interesting story. 我从来没听过这么有趣的一个故事。 （2）listen"听"侧重于"听"这一动作。Listen to me carefully. 认真听我说。 The children like to listen to music. 孩子们喜欢听音乐。 （3）sound"听起来"，它是系动词，后面接形容词等。That sounds great. 那听起来真不错。 It sounds like fun. 听起来挺有趣。 ４. be in bed "在床上、卧床"in 和bed之间不能用冠词，bed也不用复数。 He is in bed for 10 years. 他卧床10年了。Dave has to be in bed early every night.大卫每晚必须很早睡觉。 ５. arrive late for 与be late for 意思相近，"迟到"Don't arrive （be）late for school. 上学别迟到。I arrived （was）late for the meeting yesterday. 我昨天开会迟到了。 ６. No talking ! "禁止交谈！"no后面加上名词或动名词（doing）也表示不要做某事。与don't +do的用法相似。No wet umbrellas! / Don't put wet umbrellas here! 禁止放湿雨伞！No food! Don't eat food here! 禁止吃食物！
No smoking! Don't smoke here! 禁止吸烟！
三.重点语法
祈使句 1.用法：通常用来表示命令、请求、禁止、建议、警告等语气。谓语动词用原形，它的主语you(听话人)通常省略，句末一般用句号，表示较强的语气时，则用感叹号。
练习
单词变化（10分）
1.rule(复数)_________ 2.outside(反义词) _________ 3.wash(单三)__________ 4..get to (同义词)________ 5. late(反义词)________ 6.loud (副词)________ 7.could (原形)__________ 8.with（反义词）________ 9.piano(复数) __________ 10.snow (形容词) _________
二．单词填空（10分）
1.We have to wear sports shoes for g______ class. 2.You’d better not break the r_________.
3. ________ (not fight ) with each other in the classroom. 4.We can eat in the d_________ hall every day
5.Don’t run in the h__________ . It’s dangerous. 6.No _________(talk) in class!
7.Grace is wearing the school u_________ today. 8.The girl often comes back early on s_________ nights.
9.What _______ your teacher look like? She is tall and thin. 10. _________(read) in the sun is bad for your eyes.
三．选择填空（20分）
（ ）1.We can eat in the cafeteria. But we _______ eat in the classroom.
. A. don’t B. didn’t C. can’t D. aren’t
( )2.When Jim goes ________ the classroom the teacher is having class.
A. to B. in C. out D. into
( )3.-_______ I take some photos in the hall? –No, you_________.
A. Can, needn’t B. Must, mustn’t C. Could, won’t D. May, mustn’t
( )4.Don’t forget________ me this evening.
A. to call B. call C. calls D. calling
( )5.Don’t talk ________ in the library.
A. loud B. loudly C. low D. lowly
( )6.I have _______ rules in my home. We have ________ homework to do today.
A. too many, too much B. too much , many too C. too many, much too D. much too, many too
( )7.-Can your brother swim? -________.
A. Yes, he can’t B. Yes, please . C. No, he can’t D. Yes, he does
( )8.It’s raining all day , so I ________ stay at home.
A. must B. have to C. must to D. can
( )9.He’s never ________ class.
A. arrive B. late for C. arrive late D. late
( )10.He has to _______ by 10:00 o’clock.
A. be in bed B. is bed C. stay bed D. lie bed
( )11.Don’t arrive late for class, ________?
A. do you B. aren’t you C. will you D. don’t you
( )12.” No______ !” says the sign.
A. smoke B. smoking C. smokes D. to smoke
( )13.His mother is ill _________ for two days.
A. in bed B. on bed C. in the bed D. on the bed
( )14.-Can you cook fish? - ________. It’s easy.
A. No, I can’t B. Yes, I can C. Sorry, I can’t D. Yes, I need
( )15.-What did Mary have ___________breakfast this morning? -She got up late and hurried to school ________ breakfast.
A. for, without B. at, without C. for , after D. at, after
( )16.This problem is too difficult. _________ students can work it out.
A. A few B. Few C. A little D. Little
( )!7. Don’t worry! There is _________ much wrong with you.
A. something B. anything C. everything D. nothing
( )18. I hear there is going to ________ a film tomorrow.
A. is B. be C. have D. has
( )19.Do you want ________?
A. else anything B. anything else C. something else D. other anythings
( )20.The doctor asked him to stay ________ for two or three days.
A. in bed B. on bed C. in the bed D . on the bed
四．用A.B.C.D.补全对话。 （5分）
A. You are lucky. B. Really? C. I can’t go out on school nights.
D. I have to stay at home. E. It’s too bad.
A: Can you go to the movies tonight, Emily?
B: No, I 1 .
A: Oh, I can’t, either. I want to go out, but 2 .
B: 3 . I have too many rules in my family.
A; Family rules? Like what?
B: I can’t play with my friends after school .A: 4 ?
B: Yeah, I have to go home by 5:30 and do my homework.
A: Oh, I do, too. And I have to practice playing the piano every day.
B: Do you have to wash your clothes?
A: Yes, I do. I think 5 .
五．句型转换（10分）
1.You must look after you sister.(同义句)
You ________ ________ look after your sister.
2.I never arrive late for school, ________ _________ ? (完成反意疑问句)
3.We can listen to music outside the hallways.(对画线部分提问)
________ ________ we listen to music?
4.Uncle Wang does housework on weekend.(改一般疑问句)
_______ Uncle Wang _______ housework on weekend?
5.You can’t turn on the radio. (改为祈使句) ________ _______ on the radio.
六．根据汉语完成句子（20分）
1.我不得不做英语作业。 I _______ ________ do my English homework.
2.我觉得我家的约束太多了。 I think I have ________ ________ rules in my house.
3.我晚上10：00 前必须上床睡觉。 I have to _______ in bed _________ ten o’clock in the evening.
4.你认为你的英语课怎么样？ What do you ________ ________ your English class?
5．我们不能在教室里吃东西。 We can’t ________ in the ____________.
6.放学后我得练弹钢琴。 I ________ ________ practice the piano _________ school.
7.有课的晚上我们不应该看电视。 We shouldn’t _________ TV ________ school ___________.
8.十点钟前你必须得睡觉吗？ _______ you _______ _______ be _______ _______ ________ 10:00?
9.音乐课上我们可以唱歌跳We ________ sing and dance _________ _________ class.
10.我们可以在食堂吃饭。 We _________ eat in the school ___________ hall.
七．
八，书面表达。（60字）（15分） My Family Rules. ( 假如你是Mike ，家里有很多约束，你写信给你的笔友John,倾诉你内心的烦恼和不快。开头已给出)
Dear, John,
I’m not happy…
