外研版 (新标准)九年级下册Unit 3 Language in use.集体备课ppt课件

这是一份外研版 (新标准)九年级下册Unit 3 Language in use.集体备课ppt课件，共46页。PPT课件主要包含了Unit 3，情态动词，Observe， Ready，语法讲解，can could，may might，Reflection，Homework等内容，欢迎下载使用。
Language in use
1. T summarise and cnslidate the use f mdal verbs 2. T knw mre rules f ec-turism
Are yu familiar with these sentences? They are all frm this mdule.
1. Yu must be careful f falling stnes.2. Yu mustn’t walk t clse t the edge f the hill path because yu might fall and hurt yurselves.3. Yu shuld always wear prper clthes.4. Bears might think ur rubbish is fd.5. — Can we g rck climbing? — N, yu can’t.
6. Yu mustn’t g ff n yur wn.7. Yu may need sme water.8. We shuld hang the fd in a tree tnight.9. They can smell fd frm a lng way away.10. Bears might think ur rubbish is ne can run faster in the frest than a bear.12. Yu mustn’t make any sudden mves r make a sund. And abve all, yu mustn’t run.
1. Yu ________ be careful f falling stnes.2. Yu ________ (nt) walk t clse t the edge f the hill path because yu _______ fall and hurt yurselves.3. Yu ________ always wear prper clthes.4. Bears ________ think ur rubbish is fd.5. — ______ we g rck climbing? — N, yu _______(nt).6. Yu ________ (nt) g ff n yur wn.
7. Yu ________ need sme water.8. We ________ hang the fd in a tree tnight.9. They _______ smell fd frm a lng way away.10. Bears ________ think ur rubbish is ne ________ run faster in the frest than a bear.12. Yu ________ (nt) make any sudden mves r make a sund. And abve all, yu _________ (nt) run.
以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解, 下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。
情态动词本身有一定的意义，但不能独立作谓语，只能与其后的动词原形一起构成谓语，表示说话人的情绪、态度或语气，用来表达建议、请求、可能或意愿等。情态动词没有人称和数的变化，情态动词后必须跟动词原形。常见的情态动词有：can, culd, may, might, must, need, shall, will, shuld, wuld。
Can yu lift this heavy bx? (体力) Mary can speak three languages. (知识) Can yu skate? (技能)
此时可用be able t代替。can只有一般 现在时和一般过去式; 而be able t 则有 更多的时态。
①表示能力(体力, 知识, 技能), 常用情态 动词can和culd表达。
如：I’ll nt be able t cme this afternn. (一般将来时) He was able t g t the party yesterday evening in spite f the heavy rain.
当表示“经过努力才得以做成功某事”时用be able t, 不能用can。如：
—Can I g nw? —Yes, yu can. / N, yu can’t. —Culd I cme t see yu tmrrw? —Yes, yu can. (N, I’m afraid nt.)
此时可与may互换。在疑问句中还可用culd, might代替，但culd, might并不表示过去式，只是语气更委婉。它们不能用于肯定句和答语中。如：
②表示请求和允许。如：
They’ve changed the timetable, s we can g by bus instead. This hall can hld 500 peple at least.
③表示客观可能性(客观原因形成的能力)。如：
Can this be true? This can’t be dne by him. Hw can this be true?
④表示推测 (惊讶、怀疑、不相信的态度) ，用于疑问句、否定句和感叹句中。
—Might / May I smke in this rm? —N, yu mustn’t.—May / Might I take this bk ut f the rm? —Yes, yu can. (N, yu can’t /mustn’t. )
用May I ...？征徇对方许可时比较正式和客气，而用Can I ...？在口语中更常见。
①表示请求和允许。might比may语气更委婉，而不是过去式。否定回答时可用can’t 或mustn’t，表示“不可以，禁止”。如：
May yu succeed! He may / might be very busy nw. Yur mther may / might nt knw the truth.
②用于祈使句，表示祝愿。如：
③表示推测、可能性 (不用于疑问句)。 might不是过去式，它所表示的可能性比may小。如：
Yu must cme in time. —Must we hand in ur exercise bks tday? —Yes, yu must. —N, yu dn’t have t / yu needn’t.
must, have t
在回答引出的问句时, 如果是否定的，不能用mustn’t (禁止, 不准)，而用needn’t, dn’t have t (不必)。
①表示命令、禁止、不得不。如：
His play isn’t interesting, I really must g nw. I had t wrk when I was yur age.
Yu’re Tm’s gd friend, s yu must knw what he likes best.Yur mther must be waiting fr yu nw.
②must是说话人的主观看法，而have t则强调客观需要。must只有一般现在时，have t 有更多的时态形式。如：
③表示推测、可能性（只用于肯定的陈述句)。如：
Yu shall fail if yu dn’t wrk hard. (警告) He shall have the bk when I finish it. (允诺) He shall be punished. (威胁)
shall, shuld
②shall 用于第二、三人称，表示说话人给对方的命令、警告、允诺或威胁。
① shall 用于第一人称，征求对方的意见。如：
What shall we d this evening?
Will / Wuld yu pass me the ball, please? I will never d that again. They asked him if he wuld g abrad.
②表示意志、愿望和决心。如：
①表示请求、建议等，wuld更委婉。如:
During the vacatin, he wuld visit me every ther day. The wund wuld nt heal. It wuld be abut ten ’clck when she left hme.
③wuld表示过去反复发生的动作或某种倾向。wuld表示过去习惯时比used t 正式，且没有“现已无此习惯”的含义。如：
④表示估计和猜想。如：
I shuld help her because she is in truble. Yu ught t take care f the baby.
Yu shuld / ught t g t class right away.Shuld I pen the windw?
shuld, ught t
①shuld, ught t表示“应该”，ught t表示义务或责任，比shuld语气重。
②表示劝告、建议和命令。shuld, ught t可通用，但在疑问句中常用shuld。
③表示推测 shuld/ ught t 客观推测 must 主观推测
He must be hme by nw. (断定他已到家) He ught t/shuld be hme by nw. (不太肯定) This is where the il must be. (直爽) This is where the il ught t/shuld be. (含蓄)
1. 你必须马上回家。 Yu must g hme nw.2. 他一定吃过什么东西了。 He must have eaten smething.3. 吃饭之前不能吃零食。 Yu mustn’t eat snacks befre meals.
4. 我可以问你的名字吗？ May I ask yur name?5. 你能用英语说吗？ Can yu speak in English?6. 我们应该准时去上学。 We shuld g t schl n time.7. 你没有必要那么做。 Yu needn’t d that.
以下部分为课本练习，供老师在对答案时选择使用。
Language practice
Match the signs with the rules and warning.
1 N smking.2 N eating r drinking.3 Children crssing.4 Danger! Be careful f falling rcks.5 Children shuld be taken care f by parents.6 D nt drink and drive.
Read the list f rules and write sentences using must, mustn’t, shuld r shuldn’t.
Pssible answers:Yu must check in at the main gate when yu cme t the centre.Yu shuld climb with smene/ wear the crrect climbing shes/ wear cmfrtable clthes.Yu mustn’t climb withut a rpe.Yu shuldn’t listen t persnal music players while climbing.
Wrk in pairs. Explain why the rules in Activity 2 are imprtant.
— Why must yu check in when yu cme t the centre?— Because they want t knw wh is there.
1 Why must yu climb with smene?
Because yu can ask fr help if yu meet sme prblems.
2 Why must yu wear cmfrtable clthes?
Because cmfrtable clthes can make yu less tired.
3 Why mustn’t yu climb withut a rpe?
Because it is dangerus fr yu.
4 Why shuldn’t yu listen t music while climbing?
Because yu can hear what is ging n arund yu.
Peple are very (1) _______ abut the cnditins f the ancient frests f Canada and want t save them. Many visitrs t the frests use knives t cut their names int the trees, sme f which are hundreds f years ld. (2) ________ there are litter bins, peple still thrw rubbish int the (3) ________ and this causes plants and fish t die. Peple frm lcal villages have helped clean up the frests. We hpe (4) _______ will play their part in (5) ________ Canada’s frests clean t!
althugh keep stream turist wrry
Cmplete the passage with the crrect frm f the wrds in the bx.
Yu shuld ___________________________.Yu shuldn’t ________________________.Yu must ___________________________.Yu mustn’t _________________________.
Nw write pssible rules fr visitrs t the frests.
thrw rubbish int the litter bins
thrw rubbish int the stream
help save the ancient frests
use knives t cut yur names int the trees
1. Cme and visit me ________ yu have time.2. The wall is made f _______.3. The path t the tp is nt very ________.4. Remember t take a _______ with yu t sleep in, because it might rain.5. He lifted up the _______ and pinted it at the bear.6. There was a ________ nise in the wds and we all stpped mving.7. Birds use small _______ and leaves t make a hme.
gun smth sticks stne sudden tent whenever
Cmplete the sentences with the wrds in the bx.
Read the passage and answer the questins.
1. What des Zhang Wenpeng try t say with his drawing?2. What des Zhu Zhiyun try t say with his painting?
He tries t say that peple must wake up t the fact that pllutin is causing damage t the prgress we’ve made.
He tries t say that peple must nt waste electricity.
3. What des the schl suggest the students shuld d?4. Hw can a schl becme a “green schl”？
The schl suggests that the students shuld pass n what they have learnt in schl t their parents and neighburs.
A schl must include educatin abut the envirnment as part f the timetable t becme a “green schl”.
Listen and cmplete the sentences.
1. The first thing yu have t d is t ____________ carefully.2. Think abut where ___________ and whether there are ____________.3. Yu shuld nly take marked _______________.4. Make sure yu knw where _________ fr lunch.5. Dn’t frget t tell peple t ___________ fr the peple.6. dn’t walk when it is ___________ r in _________.7. Yu must nt try ut a __________ with a grup.
单项选择。1. Students in ur schl _______ knwshuting is nt allwed in the library. A. can B. may C. must D. need2. Yu ______ drive yur car s fast. It’s very dangerus. A. wuldn’t B. shuldn’t C. culdn’t D. mightn’t
3. _______ I see yur ID card, sir? We have t check yur infrmatin. A. May B. Must C. Shuld D. Need4. — Where are yu ging this mnth? — We _______ g t Xiamen, but we’rent sure. A. needn’t B. must C. might D. mustn’t5. It’s rather ht in the rm. Yu’d better________ the windws r the dr. A. clse B. nt t clse C. dn’t clse D. nt clse
6. — Where’s Tim? — I’m nt sure. He _____ in the schl library. A. maybe B. must be C. may be D. will be7. Yu made the same mistakes again. Yu _____ be mre careful next time.A. can B. may C. willD. shuld
8. I have my wn rm in my huse, s I _____ d what I want in it. A. can B. have t C. need t D. must9. The man in the ffice _____ be Mr Black because he phned me frm Lndn just nw. A. mustn’tB. can’t C. may nt D. needn’t
10. Accrding t the air traffic rules, yu _____ turn ff yur mbile phne befre barding. A. culd B. wuld C. shuld D. might 11. — Gd mrning. I’ve gt an appintment with Dr Lee. — Ah, gd mrning. Yu _____ be Mrs Jnes. A. might B. must C. wuld D. can
1. Finish the exercises in Learning English.2. Preview the new wrds and expressins in Mdule 5.