英语七年级下册（2024）Unit 2 No Rules, No Order一等奖ppt课件

这是一份英语七年级下册（2024）Unit 2 No Rules, No Order一等奖ppt课件，共41页。PPT课件主要包含了祈使句的种类及构成，can，mustnt，Must，have to，cant，情态动词can，情态动词must，must，absent等内容，欢迎下载使用。
Grammar Fcus
祈使句（Imperative Sentences）
祈使句一般用来表示请求、命令、劝说、号召、警告等。祈使句的主语一般是第二人称yu，但往往省略。祈使句的肯定式以动词原形开头，否定式在动词原形前加dn't。
e.g. Just g alng this street and turn left. Be careful when yu crss the street. Practise the guitar every day. Dn't be late fr class. Dn't fight.
肯定的祈使句：动词原形+其他.
e.g. Walk in the hallway. Stand up! Be plite. Keep quiet. Be a gd by.
否定的祈使句：Dn’t+动词原形+其他.
e.g. Dn’t run in the hallways. Dn’t litter! Dn’t be late.
let型祈使句：Let+第一/三人称+动词原型+其他.
e.g. Let me tell yu the way t my huse. Let’s see the lins. Let him g.
一、用can, have t/ must, can’t或mustn’t填空。（5 分） 1. I like ding mrning exercises. It ________ help me keep healthy.2. Yu ________ play sccer n the rad! It’s t dangerus.3.—________ I clean the rm nw?—N, yu needn’t. Yu can d it this evening.
4. It’s raining utside. I ________ take an umbrella t schl.5. Helen ________ g shpping with me because her mther needs her t help with husewrk.
N型祈使句：N+名词/动名词.
e.g. N parking. 禁止停车。 N phts. 禁止拍照。 N entry. 禁止进入。
Read the sentences. D the verbs in bld need t change frms? Why?
祈使句中的动词原型，不需要变换形式。
情态动词后用动词原型。
情态动词（Mdal Verbs）
情态动词表示说话人的语气和情态，如请求、许可、意愿、可能等。一般没有人称和数的变化。
情态动词本身不能单独作谓语，必须和动词原形连用。
情态动词的否定式一般是在其后加nt构成，一般疑问句通常将它提到句首。
情态动词的肯定式一般不重读。
1. 表示能力（七上Unit 5已经学习）
e.g. I can run fast, but I can’t swim.
2. 表示许可（本单元重点）
e.g. We can play basketball at the weekend. Students can’t run in the hallways. Can we bring ur phnes t class?
1. 表示“必须”，否定形式mustn’t 表示“禁止”
e.g. Dn’t arrive late fr class. We must be n time. Students mustn’t use their phnes at schl.
2. 以must开头的一般疑问句，肯定回答用must，否定回答 用needn’t 或者dn’t have t， 表示“不必要”
e.g. —Must I clean the classrm nw? —Yes, yu must./N, yu needn’t/dn’t have t.
情态动词 have t
表示“不得不；必须”, 在表示“必须”时，与must意义接近，有时可互换。
e.g. We have t be quiet in the library. She has t d her hmewrk first when she gets hme. We have t/must fllw the rules.
1. must表示说话人的主观看法，语气较为强烈，have t则 强调客观需要。
must与have t区别
e.g. We must hurry. I dn’t want t miss the begining f the shw. We have t hurry. The train is leaving in 5 minutes.
2. 它们的否定式含义大不相同。mustn’t表示 “不准；禁止”， dn’t have t表示“不必”。
e.g. Yu mustn't talk t yur mther like that. Yu dn't have t cme if yu dn't want t.
3. must没有人称和数的变化，而have t有人称和数的变化。
e.g. I / We / Yu / They must d smething abut it. I have t finish my wrk tday. She has t wrk late tday. They have t get t the statin befre five 'clck.
1. Dn't jump the queue. Yu____________wait fr yur turn.2. I __________ feed my dg many kinds f fd, but I _____________ give him chclate. It’s bad fr him!3.A: Can I leave the classrm if I dn't feel well? B: Yes, but yu__________tell yur teacher abut it when yu __________be absent frm class.
Cmplete the sentences using can, have t / must, r can’t / mustn't.
have t/must
can’t/mustn’t
4. A: Hey! Can I lk at yur bk? B: Shh, we____________ talk quietly in the library.5. A: Can yu put n yur seat belt? We____________wear ne when we're in a car. B: Sure. Thanks!
must/have t
二、选词并用其适当形式填空。（5 分）6. N ne knws why he is ______ frm the meeting.7. When we are in a car, we must wear ur seat ________.8. My father has a big farm, and he ________ lts f animals every day.
feed, belt, quiet, leave, absent
9.［重庆第二外国语学校期中］Dn’t make nise. We must talk _________in the library.10. Jim usually ________ his hme at 7:30 and gets t schl at 7:50.
Lk at the first sign and read the rules. Then write the rules fr the ther signs.
D nt eat r drink.N eating r drinking.Yu can't / mustn't eat r drink.
D nt park here.N parking.Yu can't / mustn't park here.
D nt take phts here.N phts.Yu can't / mustn't take phts here.
D nt swim here.N swimming.Yu can't / mustn't swim here.
D nt feed.N feeding.Yu can't / mustn't feed.
In grups, brainstrm three rules fr ne f the places belw. Then draw signs t shw the rules. Share yur signs in class and explain what they mean.
In the library, we must keep quiet. we mustn’t make nise. We can’t ...
Library Rules
Keep quiet.
N eating r drinking.
Return bks n time.
Silence yur mbile phne.
In the library, we must keep quiet. We mustn’t make nise. We can’t eat r drink in the library. Because it may make the library untidy. We must return bks n time. Last but nt the least, we have t make ur mbile phnes silent.
三、根据汉语意思完成句子。 （11 分） 11.插队是不礼貌的。It’s nt plite _________ ________ _________ ________.12.我现在很忙。你不需要等我。I’m busy nw. Yu dn’t need t ________ _______ me.
t jump the queue
wait fr
点拨：由句意可知，空格处缺少动词短语“等待”，空格前为不定式符号，故用动词原形，填wait fr。 wait其他常见用法：can't wait t d sth.迫不及待要做某事。
13.［重庆北碚区月考改编］Luke 今天病得很严重， 因此他没来上学。 Luke is badly ill tday s he _____ ______ _____schl. 14.该上课了，不要在教室里制造噪音了。It’s time fr class. Dn’t _________ ________ in the classrm.
is absent frm
make nise
四、按要求完成句子，每空一词(含缩略形式)。（23 分）15. My sister can play the pian well.(改为一般疑问句，并作肯定回答)—_________ ________ ________ _________ the pian well?—________, _________ ________.
Can yur sister play
Yes she can
16. Yu must finish yur hmewrk nw.(改为一般疑问句，并作否定回答)—________ _________ ________ my hmewrk nw?—N, _________ ________ _________ ________.17. Open the dr.(改为否定句)________ _________ the dr.
Must I finish
yu dn't have t
Dn't pen
18. Yu can’t litter in the library.(改为祈使句)________ _________ in the library.19. Yu shuld respect and be plite t ld peple.(改为祈使句)_________ ________ _________ ________ ________ld peple.
Dn't litter
Respect and be plite t
五、根据所给图片及提示词，写出恰当的句子。（4 分） 20. (nt, here)____________________________________21. (n, eat, hall)____________________________________
Dn't/D nt take phts here.
N eating in the hall.
22. ( nt, in, class)____________________________________23. (yu, must, lake)____________________________________
Dn't/D nt listen t music in class.
Yu mustn't swim in the lake.
六、情境串考点 短文填空。 （20 分） 选择恰当的情态动词或助动词填空。Kate will g t her new schl. She desn’t want t be late n the first schl day s she 24.__________ (can / has t) leave hme early. When Kate gets t schl, she meets her teacher Miss Smith. “Welcme, Kate!” Miss Smith says. “I’ll shw yu arund yur new schl.”
First, they walk t the hallway. “25. ________(Can’t/ Dn’t) run in the hallways,” Miss Smith says t sme bys. Then they cme t the classrm. “This is yur lcker, Kate. Yu 26. _________(must / dn’t have t) remember the passwrd（密码）. And yu 27. ____________(can / have t) leave yur bag and jacket here,” Miss Smith tells Kate.
“I see, Miss Smith,” Kate says. Then they cme t the playgrund. “Kate, yu 28.________ (can / can’t) d sprts with yur classmates here, but yu 29. __________(can’t / dn’t have t) take any fd here,” Miss Smith says. “I will remember that,” Kate says.
“Miss Smith!” a girl named Grace calls. “Jim threw（扔）a ball at me!” “Jim, 30. ___________(dn’t / desn’t) d that. Nw yu 31. _____________(must / dn’t have t) say srry t Grace,” Miss Smith says. “And yu 32. ____________(have t / dn’t have t) be sure nt t d that again.”
“Srry, Grace,” Jim says. It’s time fr class. Kate and all her classmates 33. _____________ (can / must) g back t class.
七、前沿科技·DeepSeek 重庆期中 任务型阅读。（8 分） 根据短文内容，完成下面的表格，每空一词。DeepSeek is a very useful kind f AI. It can d many things t help us in ur daily life and study. When we use DeepSeek t study English, it can give us gd advice n grammar（ 语法） and vcabulary（词汇）. But we shuld nt just believe（相信）it. We need t think n
ur wn and try t understand by urselves. Fr example, if DeepSeek gives us a grammar rule, we shuld practise using it in different sentences. When it cmes t using DeepSeek fr writing a shrt stry, we mustn’t cpy（照抄）the whle stry. Instead（ 相反）, we can get ideas frm it and then use ur wn ideas t make the stry special.
In nline cnversatin with DeepSeek, we shuld be friendly and respectful. We can share ur feelings abut using it, but we shuldn’t put in false infrmatin r speak ill f it.