人教七下Unit4 Don't eat in class.重点句型和表达、语法+阅读与写作（精讲精练）学案（含答案）

中小学教育资源及组卷应用平台
Unit 4 Don’t eat in class.
重点句型和表达
1. Don’t arrive late for class. 上课不要迟到。
（1）＂Don’t＋动词原形＂是祈使句的否定形式，意为＂不要……；禁止……＂，相当于＂You mustn’t＋动词原形＂。
eg：Don’t be late for class next time.下次上课不要迟到了。
Don’t play football in the street. 不要在街上踢足球。
（2）arrive late for与be late for的区别
arrive late for 都表示＂迟到＂ 侧重到达时间晚 Don’t arrive late for the meeting next time.下次开会别迟到了。
侧重于状态 She is late for work every day.她每天上班都迟到。
be late for
2. You must be on time.你一定要准时。
（1）must modal verb 必须
must为情态动词，意为＂必须，一定＂。情态动词不能单独作谓语动词，必须和动词原形一起构成谓语。
You must read a book before you watch TV. 在看电视前你必须读书。
（2）must用于否定句时，mustn’t意为＂不允许，禁止＂，而不表示＂不必＂。
You mustn’t be late for school. 你千万不要上学迟到。
（3）以must开头的一般疑问句，若作否定回答，可以用needn’t或don’t have to，不用mustn’t。
—Must I clean all the rooms 我必须打扫所有的房间吗？
—No, you needn’t/don’t have to. 不，你不必。
（4）on time意为＂准时；按时＂，指在规定的时刻发生。
We can’t finish the work on time without his help.没有他的帮忙，我们不能按时完成工作。
【辨析】on time与in time
on time 准时(在规定的时间之内) 表示动作在规定时间内或比规定时间提前发生。
in time 及时(恰在时间点上) 强调与某个时刻一致。
【一言辨异】She didn’t catch the bus in time，so she couldn’t arrive there on time.
她没有及时赶上公共汽车，因此她不能准时到那里。
3. Don’t listen to music in class. 不要在课堂上听音乐。
（1）①listen to music意为＂听音乐＂，其中listen为不及物动词，其后接宾语时，要加介词to。
Listen! The girl is singing. 听！那个女孩正在唱歌。
Listen to the teacher carefully, please. 请认真听老师讲课。
【辨析】listen和hear
listen 不及物动词 后接宾语时，要加介词to，侧重于＂听＂的动作 This girl likes to listen to the radio.这个女孩喜欢听收音机。
hear 及物动词 强调＂听＂的结果 Can you hear anything 你能听到什么吗？
（2）①in class是固定短语，意为＂在课上；上课时＂，after class意为＂在课下；下课后＂。
【辨析】in class和in the class
in class 在课上；上课时 Do you listen to your teacher carefully in class 你在课上认真听老师讲课吗？
in the class 在这个班 There are forty students in the class.这个班有40名学生。
【拓展】有类似用法的还有：
①in hospital住院 in the hospital在医院里
②at table吃饭　 at the table在桌子旁
4. wear /we / v. 穿；戴
wear为及物动词，意为＂穿；戴＂，表示状态。其过去式为wore，过去分词为worn。
eg:He wears a black T-shirt. 他穿着一件黑色的T恤衫。
She likes wearing sunglasses. 她喜欢戴太阳镜。
【辨析】wear，put on，dress，have on与in
wear 强调＂穿；戴＂的状态，其宾语可以是衣服、鞋帽、首饰或眼镜等。 He is wearing a new skirt today.他今天穿着一条新短裙。
put on 侧重＂穿；戴＂的动作，可用于穿衣服、穿鞋、戴帽等。 Please put on your coat.请穿上你的外套。
dress 意为＂穿着；打扮＂，表＂穿＂的动作时，宾语是人，不是衣服。 She dresses her little brother every morning.她每天早上给她弟弟穿衣服。
have on 表示状态，和wear相似，也可以表示＂随身携带……＂。 The emperor had nothing on.皇帝什么也没穿。
in 表示＂穿；戴＂的状态；后接表示衣服颜色的词。 The boy in blue is my brother.穿蓝色衣服的那个男孩是我弟弟。
5. important/ m’p (r)tnt/ adj. 重要的
（1）important为形容词，意为＂重要的＂，常与连系动词连用作表语，也可作定语，放在所修饰的名词前面。
There is an important meeting this afternoon.今天下午有一个重要的会议。
（2）常用句型为：It is important for sb. to do sth.意为＂做某事对某人来说是重要的。＂
It is important for us to learn English well. 对我们来说学好英语是重要的。
（3）important的名词形式为importance，是不可数名词。
The health report stresses the importance of fresh food in a diet.这份健康报告强调了饮食中新鲜食物的重要性。
6. Can we bring music players to school 我们可以把音乐播放器带到学校吗？
（1）本句为含有情态动词can的一般疑问句，肯定回答用＂Yes, ...can.＂，否定回答用＂No, ...can’t.＂，
can在此处表示许可，意为＂可以＂。
（2）bring为及物动词，意为＂带来；取来＂反义词为take，意为＂拿走＂。bring sth./sb.to sp.意为＂把某物/某人带来某地＂。
eg：Why don’t you bring your girl friend to the party 你为什么不把你的女友带来参加聚会？
Please take these books to the library.请把这些书带到图书馆。
【辨析】bring, take, get与carry
bring 意为＂带来；拿来＂，指从别处带到说话者所在的地方来 Please bring your family photo here.请把你的全家福照片带到这儿来。
take 意为＂带走；拿走＂，指从说话者所在的地方带到远处去。常与介词to连用。方向上与bring正好相反 His father often takes him to the zoo on weekends.他爸爸经常在周末带他去动物园。
get 意为＂得到；获得＂，无方向性，常与介词from连用 People often get money from me.人们经常从我这里取钱。
carry 意为＂搬运＂，无方向性 The box is too heavy for the boy to carry.对那个男孩来说这个箱子太重了，他搬不动。
7. This is a great school, but there are a lot of rules.
a lot of意思是＂大量，许多(个)＂，可以接可数名词，相当于many，也可以接不可数名词，相当于much。
eg：I have a lot of work from morning till night. 我从早到晚事情很多。
He reads a lot of books after school every day. 他每天放学后阅读大量书籍。
8.practice the guitar 练习弹吉他
（1）practice此处用作及物动词，意为＂练习，训练＂，其后可跟名词、代词或动名词作宾语。
eg:I often practice my English in the morning. 我常常在早上练习英语。
He practices playing the piano every day. 他每天练习弹钢琴。
（2）practice还可用作不可数名词，意为＂练习，实践＂。
eg:Practice makes perfect.熟能生巧。
9.do the dishes 清洗餐具
（1）dish此处用作可数名词，意为＂碟，盘＂，作＂餐具＂讲时，常用复数形式，其前常加the。
do the dishes相当于wash the dishes，意为＂清洗餐具＂。
eg:You must do the dishes before you go out. 你外出前必须清洗餐具。
（2）dish与plate二者都是餐具名称，都有＂盘，碟＂的意思，其区别在于：
dish 可泛指就餐时所用的餐具，包括盘、碟、碗、杯、刀、叉等，特指较深的盘子。
plate 指较平的盘子、碟子，可用来装菜。
【拓展】dish还可用作可数名词，意为＂菜肴，一道菜＂。eg: He likes cold dishes.他喜欢凉菜。
10.make breakfast 做早饭
make breakfast for 给……做早饭。
eg:My mother gets up at six every morning to make breakfast for me. 我妈妈每天早晨六点起床给我做早饭。
【辨析】make与do两者都有＂做＂的意思。
make ＂生产，制造＂，指用原材料制作成某种东西，或经过努力而做成某物。一般强调做的东西时用make。
do 指进行一项经常性的或指定的活动，一般强调动作时用do。
eg:He’s making a cake. 他正在做一个蛋糕。
I’m doing my homework. 我正在做我的家庭作业。
【拓展】含有make的短语：
make one’s bed 整理某人的床铺 make a noise 发出噪音 make faces 做鬼脸
make dumplings包饺子 make friends with 和……交朋友 make up 组成；化妆
make a difference 起作用 make rules 制订规则 make mistakes 犯错误
make progress 取得进步 make up one’s mind 下定决心 make fun of 取笑
make room for 为……让出地方 make sb. feel at home 舒适自在，无拘无束
11.leave /li v/ vt.留下，落下
（1）leave意为＂留下，落下＂,常与表示地点的介词短语连用,表示＂把某物忘在某地＂。其过去式和过去分词为left。
eg:I left my pen in the bedroom.我把钢笔落在卧室了。
【辨析】forget和leave
forget 表示忘记某物，常表示＂遗忘，记不起＂，不与地点状语连用 Oh, dear! I forget his phone number.糟糕！我忘记了他的电话号码。
leave 表示＂忘了带，落下；留在＂，常与地点状语连用 I’m sorry. I left my homework at home.对不起，我把我的家庭作业落在家里了。
（3）leave的其他用法
leave 离开 He leaves home early every day. 每天他早早地离开家。
忘了带，丢下 I left my bag at home. 我把我的书包落在家了。
剩下 Hurry up! There’s little time left. 快点！几乎没有时间了。
【辨析】leave 和 leave for
leave 后跟的地点为＂出发地＂ He left Beijing yesterday. 昨天他离开北京。
leave for 后跟的地点为＂目的地＂ He will leave for Shanghai tomorrow. 明天他将动身去上海。
12.At school, we have more rules—don’t be noisy, don’t eat in class...
在学校，我们有更多的规则—不许喧哗，不要在课堂上吃东西……
（1）more意为＂更多的＂，此处是many的比较级，修饰可数名词复数形式。它也是much的比较级，可修饰不可数名词。
eg:She has more books than I. 她的书比我的多。
（2）noisy形容词，意为＂吵闹的，嘈杂的＂，其反义词为quiet＂安静的＂。
【辨析】noise，noisy与noisily
noise n. 喧闹声，噪音 Don’t make so much noise. Dad is sleeping in the next room.不要制造这么大的噪音。爸爸正在隔壁的房间里睡觉。
noisy adj. 吵闹的 Don’t be noisy! Be quiet, please.不要吵闹！请保持安静。
noisily adv. 吵闹地 My little sister is crying noisily.我的小妹妹正在大声哭闹。
13.After dinner, I can’t relax either. 晚饭后，我也不能放松。
（1）relax/r ’l ks / v. 放松，休息
eg:Just relax and enjoy the movie. 休息休息，看看电影吧。
【辨析】relax，relaxing与relaxed
relax 动词 放松；使放松
relaxing 形容词 主要用来修饰物，表示＂令人放松的＂
relaxed 形容词 主要用来修饰人，表示某人＂感到轻松的＂
eg:Playing games always relaxes me. 玩游戏总是使我放松。
This film is very relaxing. 这部电影很令人放松。
He is relaxed after taking a vacation. 度假后，他感到轻松。
【拓展】英语中类似的词还有：interesting有趣的；interested 感兴趣的；boring无聊的；bored (对某人/某事)厌倦的，烦闷的；exciting令人兴奋/激动的；excited兴奋/激动的；surprising令人惊讶的；surprised感到惊讶的等。
eg:This is a surprising story. 这是一个令人惊讶的故事。
I’m surprised at the news. 我对这个消息感到惊讶。
(2) either在此处意为＂也＂。
【辨析】either, too与also
also ＂也＂，用于肯定句中，常放在句中，位于be动词、情态动词或助动词之后，实义动词之前。
too ＂也＂，用于肯定句中，一般放在句末。
either ＂也＂，用于否定句中，一般放在句末。
eg:My brother can also play the piano. 我哥哥也会弹钢琴。
I like English, too. 我也喜欢英语。
I don’t like it either. 我也不喜欢它。
14.read/ri d/ v. 阅读；读
【辨析】read，watch，see与look
read 意为＂阅读＂，侧重指看文字性的东西。可用于read sth. to sb.或read sb. sth.结构。 He is reading a book.他正在看书。
watch 意为＂观看；注视＂，指非常仔细地、有目的地、全神贯注地＂看＂。 We sat and watched the sunset.我们坐着看日落。
see 意为＂看见；看到＂，强调看的结果，指有意或无意地看到，无进行时态。 I saw him leave a few minutes ago.几分钟前我看见他离开了。
look 意为＂看＂，强调看的动作，表示有意识地集中精力去看。 I looked but saw nothing.我看了，但什么也没看到。
15.terrible/’ter bl/ adj.非常讨厌的；可怕的
Terrible“非常讨厌的；可怕的”。在非正式语体里，terrible还可作“很糟的，极差的”解，在句中可用作定语或表语。
eg:Do you know the terrible news 你知道那则骇人听闻的新闻吗？
It is terrible that she lost her purse. 糟透了，她丢失了钱包。
【拓展】terribly为副词，意为＂很；非常；很厉害地＂。
eg: I am terribly sorry for that. 我对那件事非常抱歉。
She suffered terribly when her son was killed. 她儿子被杀之后，她遭受了极大的痛苦。
16.Parents and schools are sometimes strict, but remember, they make rules to help us.
父母和学校有时是严格的，但是要记住，他们制订规则是为了帮助我们。
（1）strict形容词，意为＂严格的，严厉的＂，在句中可作表语、定语。
She is a strict teacher. 她是一个严格的老师。
【辨析】
be strict with sb. 对某人要求严格 My parents are strict with me.我父母对我要求严格。
be strict in sth. 对某事要求严格 Our teacher is strict in his work.我们的老师对他的工作要求严格。
（2）remember为及物动词，意为＂记住，记起＂， 其反义词是forget，意为＂忘记＂。remember后可接名词、代词、动词的 ing形式和动词不定式作宾语。
eg:I can’t remember his telephone number.我记不得他的电话号码了。
【辨析】remember to do sth.与 remember doing sth.
remember to do sth. 记得要去做某事，说明事情还没有做，相当于don’t forget to do sth. Remember to telephone me when you arrive there.当你到那里的时候，记着打电话给我。
remember doing sth. 记得做过某事，说明事情已经做过 I remember seeing her in the city.我记得在这个城市见过她。
17.follow /’f l / v. 遵守
follow在此为及物动词，意为＂遵循，遵守＂，常用短语：follow the rules遵守规则。
eg:We should follow the traffic rules.我们应该遵守交通规则。
【拓展】follow常见的其他用法有：
①跟随，跟着
eg:Please follow me. I’ll show you the way. 请跟我走，我来给你带路。
②明白，领悟(＝understand)
You are speaking too fast and we can’t quite follow you. 你讲得太快，我们不太懂你的意思。
③沿……而行follow the road 沿路而行
④following作形容词，意为＂下列的，接下来的＂
eg:Can you answer the following questions 你能回答下列问题吗？
18.luck / l k / n.幸运；运气
luck为不可数名词，意为＂幸运；运气＂。
good luck (to sb.)表示＂祝(某人)好运＂，bad luck意为＂倒霉＂。
eg:She had no luck finding a job. 她很不幸，找不到工作。
I wish you good luck!＝Good luck to you! 祝你好运！
【拓展】①lucky是形容词，意为＂幸运的，吉祥的，侥幸的＂。
eg:He is a lucky dog.他是个幸运的家伙。
②luckily是副词，意为＂幸运地，幸亏，侥幸＂。
eg:Luckily there was a doctor on the spot. 幸运的是现场有一位医生。
19.keep my hair short 留短发
(1)keep用作及物动词，意为＂使……保持某种状态＂，即＂keep＋宾语＋宾语补足语＂结构，其中宾语补足语通常由形容词、副词、介词短语等充当。
eg:We must keep the classroom clean. 我们必须保持教室干净。
Keep the children away from the fire, please. 请让孩子们远离火。
【拓展】keep的其他用法：
①keep作及物动词，可意为＂保留＂，后可接时间段。
eg:How long can I keep the book 我可以借这本书多长时间？
②keep作及物动词，可意为＂遵守＂，与follow同义。
eg:Everyone must keep the rules. 每个人必须遵守规章制度。
③keep还可作连系动词，后接形容词等作表语。
eg:You must look after yourself and keep healthy. 你必须照顾好你自己，保持身体健康。
（2）hair /he (r)/ n.头发；毛发
hair可用作可数名词和不可数名词。指头发的总称时，是集合名词，为不可数；指一根根的头发时，是可数名词。
eg:He has blond hair. 他有一头金发。
Look at this, a hair in my soup.你瞧，我的汤里有根头发。
20.have fun 玩得高兴；获得乐趣
（1）have fun中的fun是不可数名词，其前可用no; much; a lot of等词修饰。
eg:It’s a good place to have fun. 那是一个获得乐趣的好地方。
（2）同义短语：enjoy oneself或have a good time。
eg:Did you have fun/enjoy yourself/have a good time at the party 你在聚会上玩得开心吗？
【拓展】have fun(in)doing sth.意为＂做某事有乐趣＂。
eg:The kids are having fun playing in the park now. 现在孩子们在公园玩得正开心呢。
21.Dear Dr.Know
Dr.是Doctor一词的缩写，意思是＂博士；医生；医师＂，冠于姓氏之前，表示对某人的尊称，
如：Dr.Zhu朱博士；Dr. Bethune白求恩大夫。
22...I don’t want the cat to get me!
want sb.to do sth./want sb.not to do sth.的意思是＂想要某人做某事/想要某人不做某事＂。
eg:I want my cousin to help me with my lesson. 我想要我的表哥帮我学习功课。
He doesn’t want me to tell you about it. 他不想我告诉你这件事。
【课堂练习】
一、单项选择题。
1.The passengers show their ID cards before getting on the plane.
A. might B. must C. could
2.Don’t be late class! We must be on time.
A. for B. to C. in
3.Children sit in the front(前面) seat of a car. It’s too dangerous(危险).
A. need B. needn’t C. must D. mustn’t
4.—Must I hand in(上交) my homework now, Mr. Smith
—No, you .
A. can’t B. shouldn’t C. wouldn’t D. needn’t
5.The teachers hope all of us can hand our homework time every day.
A. up; in B. out; on C. on; in D. in; on
6.We all the man carefully(仔细), but we can’t what he says.
A. listen to; listen to B. listen to; hear C.hear;listens to D.hear；hear
7.She the children in their best clothes.
A. put on B. wore C. dressed D. had on
8.It’s important me the piano every day.
A. to；practice B. for；practice C. for；to practice D. to；to practice
9.Why don’t you your friends to the party I want to meet them.
A. bring B. takes C. gets D. carry
10.—Can I park my car in front of the building
—No, you .
won’t　 B. can’t　 C. needn’t　 D. couldn’t
11.Bruce practices basketball every day so that he can be a better player.
A. play B. to play C. playing
12.—I’m sorry I my exercise book at home this morning.
—It doesn’t matter. Don’t forget it here this afternoon.
A. left; to take B. forgot; bringing C. left; to bring D. forgot; to bring
13.Tony gets up early in the morning. He likes to make breakfast his family.
A. at　　 B. on C. for D. from
14.—I’m going to Mary’s birthday party. Bye, Mom.
— , David!
A. Best wishes B. Have fun C. Take care D. No problem
15.—Must I return the book this week
—No, you . You can it for 20 days.
A. mustn’t；keep B. needn’t；borrow C. needn’t；keep
16.—I’m going to enter an English speaking competition tomorrow.
— !
A. Good luck B. Have a nice trip C. No problem D. Congratulations
17.For our own safety, it’s important to the traffic rules on the way to school.
A. follow　　　　 B. change　　 C. make D. break
18.Tom, please remember the light when you leave.
A. turn off B. turning off C. to turn off
19.My English teacher is always strict us.
A. in　　 B. at　　 C. with　　 D. about
20.—Bruce, I don’t like this restaurant. It’s too here.
—Well, let’s go somewhere quiet.
A. dirty B. noisy C. dangerous D. expensive
21. —How do you usually go to school
—My school is far away. I take the bus to school.
A. must B. might C. have to
22. —Don’t throw paper on the floor.
— .
A. Good idea. B. Sorry, I won’t. C. Cheers! D. No way!
23. —May I go out for a while, Mom
—No, you . You have to finish your homework first.
A. shouldn’t B. needn’t C. mustn’t D. won’t
24. Cars, buses, bikes and people stop when the traffic lights are red.
A. can B. may C. must
25. —Can I listen to music here
— .But you can listen to music in the hallways.
A. Yes, please B. No, you can’t C. No, you don’t D. Yes, you can
26. I am in a jacket today. But he says we have to uniforms at school.
A. wear B. put on C. dress D. have in
27. —Please the photos taken in Canada here when you come to school tomorrow. I’d like to have a look.
—OK!
A. take B. get C. bring D. carry
28. —I hear you h ave to get up earl y every morning.
—Right. It’s one of the of my family.
A. plans B. jobs C. programs D. rules
29. Did he have to at that time
A. went B. go C. does D. going
30. This is an talk. Please arrive time.
A. important; on B. good; on C. important; in D. good; in
31. Rose school very early every day.
A. gets B. gets to C. arrives
32. —Is ready for the trip
—No, we still need to buy a map before we start the trip.
A. anything B. something C. everything D. nothing
33. — do you go to bed
—At 10:00.
A. What time B. What C. Why D. Who
34. Students can’t music in the hallways.
A. listen B. hear C. listen to D. hear to
35. They arrived Shanghai very late last night.
A. at B. in C. on D. to
Keys：BADDD BCCAB CCCBC AACCB CBCCB ACDBA BCACB
【巩固练习】
一、用括号内所给单词的适当形式填空。
1. I prefer historical dramas because they are a (relax) way for me to learn history.
2. Too many (rule) make Molly feel terrible.
3. Please don’t be (noise). The baby is sleeping.
4. I have a (relax) weekend.
5. Zhao Pei has to learn (play) the piano on weekends.
6. Do you have fun (watch) TV
二、用适当的介词填空。
1. Sally is never late class.
2. —What do you usually do school nights
—I usually do my homework.
3. My brother likes listening music night.
4. Can you help me my math
5. Nick always brushes his teeth going to bed.
Keys：
一、1. relaxing 2. rules 3. noisy 4. relaxing 5. to play 6. watching
二、1. for 2. on 3. to；at 4. with 5. before
重点语法
一、祈使句
用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句。祈使句最常用于表达命令。祈使句因对象(即主语)是第二人称，所以通常都省略主语。祈使句的开头动词都为原形，句末则使用句号或感叹号。
Go and wash your hands.去洗你的手。(命令)
Be quiet, please. 请安静。(请求)
Be kind to your sisters. 对妹妹要和善。(劝告)
Look out! Danger! 小心！危险！(警告)
Keep off the grass.勿践踏草坪。(禁止)
1. 祈使句的形式
（1）肯定祈使句的表现形式：
Do型 动词原形(＋宾语)＋其他成分 Please have a seat here. 请这边坐。
Be型 Be＋表语(名词或形容词)＋其他成分 Be a good boy！要做一个好孩子！
Let型 Let＋宾语＋动词原形＋其他成分 Let me help you.让我来帮你。
（2）否定祈使句的表现形式：
①Do型和Be型的否定式都是在句首加Don’t。
Don’t forget me! 不要忘记我！
Don’t be late for school! 上学不要迟到！
②Let型的否定式有两种：＂Don’t＋let＋宾语＋动词原形＋其他成分＂和＂Let＋宾语＋not＋动词原形＋其他成分＂。
Don’t let him go./Let him not go. 别让他走。
③有些可用no开头，用来表示禁止性的祈使句。
No smoking! 禁止吸烟！
No fishing! 禁止垂钓！
【祈使句用法歌诀】
祈使句，祈使句，请求、命令或建议。
主语是you常省去，动词原形开头记。
否定形式要注意，句首要把Don’t加。
要讲客气用please，句首、句末没关系。
情态动词must和have to的用法
1. must的用法
（1）must表示主观义务，意思是＂应该，必须＂，其否定式mustn’t意为＂不应该，不准＂。
eg：We must get there before five o’clock. 我们必须在五点钟前赶到那儿。
You mustn’t break the rules. 你不要破坏规定。
对用must所提问题的否定回答，常用needn’t或don’t have to，意思为：不必。
eg：Must I stay here after school 放学后我还得留在这儿吗？
No, you needn’t / don’t have to. 不了，没有必要。
（2）must表示推测，意思为：一定，必定(只用于肯定句中)。
eg：He must be our headmaster. 他肯定是我们的校长。
He must have seen the film last night. 他昨天晚上肯定看了那场电影。
2. have to表示客观要求，意思为：不得不；必须；除此之外，别无选择。使用have to应注意以下几点：
（1）have to后接动词原形，意为＂必须做……；不得不做……＂。
eg：We have no food home, you have to go and get some, Tom. 家里没有食物了，汤姆你得去买一些来。
（2）have to 有人称、数和时态的变化，其第三人称单数形式为has to。
eg：She has to help her mom make dinner. 她不得不帮她妈妈做晚饭。
eg：There’s no bus here, so we had to walk home. 现在这里没有汽车了，我们只好走路回家了。
（3）含有have to, has to的句子需分别借助动词do, does构成疑问句或否定句。
eg：Do they have to go now 他们得现在回家吗？
You don’t have to go if you don’t want to. 如果你不想去，你就不必去。
【辨析】have to 与must
词(组) 用法 否定形式
have to必须；不得不 强调客观存在的必要性，含有不情愿的色彩，不能用来表示推测。有时态、人称和数的变化。 don’t/doesn’t have to意为＂不必；不必要＂，相当于needn’t。
must必须；一定 表示说话人的主观意志和看法，含有自觉、自愿的色彩，不能用于过去时或将来时，也没有人称和数的变化。可以用来表示推测， 意为＂准是；一定＂ mustn’t表示＂禁止；不允许；一定不要＂。
eg：I have to study hard. 我不得不努力学习。
I must study hard. 我必须努力学习。
You don’t have to tell him about it. 你没有必要把这件事告诉他。
You mustn’t tell him about it. 你一定不要把这件事告诉他。
【巩固练习】
一、请根据你校的实际情况,用have to，don’t have to，can，can’t，must，mustn’t等表达你的校规。
1. I arrive late for class. I be on time.
2. I keep my hair short and wear a school uniform.
3. I listen to my teachers carefully in class. I talk with my partner.
4. I be noisy in the classroom. I be quiet.
5. I eat in the classroom. I eat in the dining hall.
二、根据汉语意思完成句子，每空一词。
1. 到这儿来。
.
2. 快点！
quick!
3. 不要在这儿吃东西。
here.
4. 让我们骑自行车到那儿吧。
the bike to get there.
5. 别在走廊里跑。
in the hallways.
三、单项选择题。
1.—Lingling, can I use your e-dictionary
—Sure. But you return it after class.
A. must B. can C. may D. would
2.Daniel, play with the mobile phone while you’re walking in the street.
A. don’t B. doesn’t C. won’t D. can’t
3.— dressed now! We have to go in ten minutes.
—OK, Mom.
Getting B. Get C. To get 　 D. Gets
4. At school I wear a uniform and I keep my hair short.
A. can’t; have to B. have to ;must C. don’t have to;must
5. —Must I return the book this week
—No, you . You can it for 20 days.
A. mustn’t: keep B. needn’t; borrow C. needn’t; keep D. mustn’t; borrow
6. —Will you please stay here a little longer
—Sorry, I . I eat dinner with my mother. She’s coming.
A. mustn’t; will have to B. don’t; have to C. can’t; had to D. can’t; will have to
7. — Jim study hard these days
—Yes, he will take an exam next week.
A. Is, have to B. Does, have to C. Can, have to D. Does, has to
8. Mrs Green go far if she goes shopping. The supermarket is beside her neighbourhood.
A. have to B. doesn’t have to C. needn’t have to D. haven’t to
9. This book Tom’s father’s, because his name is on the book.
A. maybe B. may be C. must be D. must
10. —It’s said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang
—Yes, it him. He for a week.
must be; has arrived here B. maybe; has been here
C. must be; has been here D. maybe; has arrived here
11. The girl in the classroom be Maria. She called me from the library just now.
A. mustn’t B. may not C. can’t D. needn’t
12. —Where is Tom Is he in the room now
—He be there, for I saw him in the teachers’ office just now.
A. can’t B. may not C. shouldn’t D. mustn’t
13. We _____________ use mobile phones when the plane takes off
A. may not B. shouldn’t C. needn’t D. mustn’t
四、用括号内所给单词的适当形式填空。
1. (do) your homework right now(立刻).
2. Please (be) quiet.
3. (not let) the dog come in.
4. No (swim)!
5. Stop (talk)!
Keys：一、1. can’t；must 2. have to 3. must/have to；can’t/mustn’t
4. can’t/mustn’t；must/have to 5.can’t/mustn’t；must
二、1. Come here 2. Be 3. Don’t eat 4. Let’s ride 5. Don’t run
三、AABBC DBBCC CAD
四、1. Do 2. be 3. Don’t let　4. swimming 5. talking
阅读与写作
【话题分析】
本单元话题是“规章制度”，命题人围绕各种规章制度展开话题，要求学生用英语表达学校或者家庭的规章制度，并表达自己对这些制度的看法。写作时常用祈使司，要注意析使句以动词原形开头，以及祈使句的否定结构。此类话题作文吸引阅卷人眼球的亮点表达有：
(1)Don't... (2)We have to/must... (3)We can't...
【课堂练习】
每所学校都有规章制度。假如你是Li Hua,下面是你们学校的一些规章制度，请写一封电子邮件向你的笔友Lucy介绍一下。词数不少于50。
1.上课不可以迟到。
2.在课堂上保持安静。
3.见到老师要问好。
4,不可以在教室里吃东西及喝东西。
5.不可以在课堂上听音乐及玩游戏。
【提示】
引出话题 I would like to tell you about the rules in our school.
校规 列举校规 We can'/must/have to…
发表看法 I think there are too many rules in our school. What about yours
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
【小测】
一、完形填空。
Dear Carol,
I 1 have a good time at my new school.There 2 too 3 rules at my school.We have to get to school 4 seven o’clock every morning.We 5 play games in the classroom after class.We can’t listen to music in the hallways. I don’t like playing 6 piano, 7 I have to play the piano in the music class. And we have to wear uniforms at school. I can’t 8 the rules here. I 9 have fun. 10 can I do
Yours,
Steve
1. A. not B. am not C. don’t D. doesn’t
2. A. are B. is C. be D. was
3. A. much B. many C. lots of D. a lot of
4. A. in B. at C. on D. of
5. A. can’t B. can C. have to D. has to
6. A. / B. a C. the D. an
7. A. so B. and C. but D. or
8. A. like B. mind C. love D. stand(忍受)
9. A. always B. usually C. often D. never
10. A.What B. Why C. When D. Where
CABBA CCDDA
二、 阅读理解。
A
There are lots of rules at Tom’s school. He thinks some of them are good. For example, they can’t arrive late; they can’t run in the hallways; and they can’t eat in class. All these rules are okay because they’re reasonable(合理的).
But there are some rules Tom doesn’t like. For example, at his school they have to wear a uniform and they can’t wear jeans. But he thinks jeans are good because they’re comfortable. In school, they can’t listen to music in art classes. Tom doesn’t agree with this rule. He thinks listening to music in art classes is okay.
Tom also has to follow some rules at home. For example, if he wants to watch TV, he has to do his homework first. And he can’ t go out with his friends on school nights, that is, from Monday to Thursday. He also has to clean his room every week. But he doesn’t have to take out the trash(垃圾).
根据短文内容，判断正(T)误(F)。
1. The students can’t arrive late at Tom’s school.
2. Tom doesn’t have to wear a uniform in school.
3. Tom can go out with his friends on Friday nights.
4. Tom has to take out the trash every week.
5. Tom has lots of rules at school but he has no rule at home.
TFTFF
三、根据首字母提示写单词，完成句子。
1. You’d better(最好) not break(违反) the r____________. You have to follow them.
2. Don’t be n____________. Please keep the classroom quiet.
3. It’s raining o____________. Please stay at home.
4. Never f____________ with others. It’s impolite(不礼貌的).
5. Tim, your hands are d____________. Wash them, please!
rules；noisy；outside；fight；dirty
四、补全对话。
A：Can you go to the party this evening, Emily
B：No, 1
A：Oh, what a pity(真遗憾)!
B：I want to go out, 2 There are too many rules in my family.
A：Family rules 3
B：I can’t play with my friends after school.I have to go home before 5：30 and do my homework. 4 .
A：Oh, I do, too. And I have to practice playing the piano every day.
B：Do you have to do the dishes
A：Yes, I do. I think 5
A. How about you B. Like what C. I can’t go out on school nights.D. but I have to stay at home.E. it’s too terrible.
CDBAE
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