人教版 (2019)必修 第三册Unit 5 The Value of Money背景图ppt课件

这是一份人教版 (2019)必修 第三册Unit 5 The Value of Money背景图ppt课件，共34页。PPT课件主要包含了必要性，明规则，couldnt，must，can，may，neednt，cant，will，Ought等内容，欢迎下载使用。
1．常见情态动词用法 [先感知]①He wuld cme t help us when he was free.过去，他有空时常来帮我们。②May we ask what yu're ding in this cuntry and what yur plans are?能告诉我们你来英国干什么吗？你有什么计划吗？③Well, yu mustn't wrry abut that.呃，你不必担心。
④Nw if yu'll excuse me, I ught t be n my way.很抱歉，我该走了。⑤Oh, n, yu'd better nt pen it.哦，不，你最好先别拆。⑥I saw her g ut just nw. She can't be at hme nw.我刚才看见她出去了。她现在不可能在家。[会发现]（1）句①中的wuld表示______。（2）句②中的may表示______。（3）句③中的mustn't表示______。（4）句④中的ught t 表示_________。（5）句⑤中的had better表示______。 （6）句⑥中的can't表示_______。
[对点练]　(根据句意填入适当的情态动词)①As he writes in his new bk, A Lng Way Hme, Brierley __________help but wnder abut his hmetwn back in India.②Tm, yu _______nt leave all yur clthes n the flr like this!③Jim says we _____stay in his huse as lng as we leave it clean and tidy. ④He ______ have been t sme f thse places, but I am nt sure.⑤—Need yu g nw?—Yes, we______./N, we__________.
⑥—Can this bk be yurs?—N, it ______ be mine. It must be his.⑦As a girl, she ______ get up at six.⑧________ he t clean the classrm after schl?⑨Yu ________ be tired after the lng trip, aren't yu?⑩—What's the name?—Khulaifi. _______I spell that fr yu?
2．某些情态动词的特殊用法 [先感知]①—Shall I turn dwn the radi a bit?—Yes, please./ N, please dn't.——我可以把收音机的音量关小点吗？——可以。/不，请不要。②It is strange that he shuld nt pass s easy an exam.令人奇怪的是，他竟然连这么容易的考试都没有通过。
③Hard as I try and try, the dr wn't pen.我努力地试了又试，这个门就是打不开。④Must yu shut s ludly?你非得喊得这么大声吗？⑤The maths prblem was hard, but I was able t wrk it ut.这道数学题目虽难，但我能做出来。
[会发现]（1）句①中的shall表示________________。（2）句②中的shuld表示_______。（3）句③中的wn't表示_____________。（4）句④中的must表示_______。（5）句⑤中的was able t表示_______________________。[明规则] (1)shall在疑问句中，用于第一人称，表示说话人征求对方的意见或向对方发出请求或表示说话人对对方的命令、警告、允诺等。(2)shuld可用在表示惊奇、怀疑、不满等语气的名词性从句中，意为“竟然，竟会”。
(3)will, wuld在疑问句中用于第二人称，表示说话人向对方提出请求或询问，用wuld语气更加委婉；will表示现在的习惯性动作或状态，wuld表示过去的习惯性动作或状态；will用于各种人称，表示意志、意愿、决心、允诺等，wuld表示过去时间的意志、意愿等。(4)must表示“偏要，硬要”(指做令人不愉快的事)。(5)was/were able t, culd表示过去成功地做成了某事，相当于managed t d sth./succeeded in ding sth.。culd仅表示客观上有某种能力，不说明实施该能力后的结果。
[对点练]　(选词填空：must/shall/shuld/wuld/will)①I still remember my happy childhd when my mther _______take me t Disneyland at weekends.②It was sad t me that they, s pr themselves, ________bring me fd.③Jhn, lk at the time. ______ yu play the pian at such a late hur?④ —Daddy, can yu buy me a new cmputer when yu g t Beijing?—Yu ______ get ne if yu are admitted t a key middle schl.⑤_______ we g there with Tm tmrrw?
3．情态动词＋have dne [先感知]①She can't have been t yur huse. She desn't knw yur address.她不可能去过你家。她不知道你的地址。②It must have rained last night, fr the grund is wet.昨晚一定下雨了，因为地面是湿的。③She is late. She may have missed the bus.她迟到了。她可能没赶上公交车。④Tm, yu are t lazy. The wrk shuld have been finished yesterday.汤姆，你太懒惰了。这项工作本应该昨天就被完成的。
[会发现]（1）句①中的can't have dne表示____________________。（2）句②中的must have dne表示___________________。（3）句③中的may have dne表示_________________________。（4）句④中的shuld have dne表示___________________________。[明规则]情态动词可以与实义动词的完成式合用，表示过去发生的动作。情态动词的完成式常分为以下两种情况：
对过去的推测，可能性较小
本应该完成，但实际上没完成
(1)对过去发生的事情或状态进行推测
(2)表示与过去事实相反
[对点练]　(完成句子)①—Srry, Mm！I failed the jb interview again.—Oh, it's t bad.Yu _________________full preparatins.——对不起，妈妈！我这次工作面试又失败了。——哦，真是太糟糕了。你本该做好充分准备的。②My bk is missing. Wh ___________________ it?我的书不见了，谁有可能拿走它了呢？③Lk what yu've dne! Yu ________________________the experiment mre carefully.看你都做了什么！你本应该更仔细地做这个实验。
shuld have made
culd have taken
ught t/shuld have dne
④Yu ________________them what had happened between us.你本不必告诉他们我们之间发生了什么事。⑤Yu ____________________the exam early, but yu were s careless as t make s many mistakes.你本来能早点通过考试，但你那么粗心以致犯这么多错误。
needn't have tld
culd have passed
二、过去将来时[先感知]①Anther said he wuld give half f all his mney t the gvernment t help pr peple.另一个人说他会把一半的钱捐给政府来帮助穷人。②Hey, Timmy. I was ging t call yu. But nw that yu are here, I dn't have t.嗨，蒂米。我正要打电话给你。但既然你在这儿，我就不需要打了。③The press cnference was t be held next week.记者招待会将于下周举行。④She said she was just abut t ask yu the same thing.她说她正要问你同一件事情。
[会发现]　过去完成时的构成：①__________________________②_________________________③________________________④__________________________ [明规则] (1)“wuld/shuld d”构成过去将来时，表示从过去某一时间来看将发生的事。shuld主要用于第一人称；wuld可用于各种人称。(2)“was/were ging t d”表示说话者主观打算做某事，或客观迹象表明即将发生某事，还可表示根据当时情况判断有可能但不一定会发生某事。
was/were ging t＋动词原形
was/were t＋动词原形
was/were abut t＋动词原形
(3)“was/were t d”表示计划中约定的或按职责、义务要求必须去做的事或即将发生的动作。(4)“was/were abut t d”表示说话的瞬间就会发生的动作，一般不与表示将来的具体的时间连用。(5)cme, g, leave, arrive, start等动词的过去进行时可表示过去将来时。(6)条件、时间状语从句中用一般过去时代替过去将来时。
[对点练]　(翻译/完成句子)①上周他答应要来的，可到现在还没到。(wuld d)_________________________________________________________________②你本来要给我你的地址的，可是你没给。(were ging t d)_______________________________________________________③格林先生几个小时后就要去夏威夷了。(was ding)__________________________________________________④关于空气污染的会议将于下周举行。(was t d)_________________________________________________
Last week he prmised that he wuld cme, but he hasn't arrived until nw.
Yu were ging t give me yur address but yu didn't.
Mr Green was leaving fr Hawaii a few hurs later.
The cnference n COVID-19 was t be held next week.
⑤我正要打开电脑电源，这时停电了。(was abut t d)____________________________________________________________________⑥我只是不知道该说什么，因为我从未想过见到我的母亲将会变成现实。(wuld d)I just didn't knw what t say, because I never thught _______________________________________.
I was abut t turn n the pwer f the cmputer when the electricity went ff.
seeing my mther wuld
ever cme true
[新知突破]1．★intentin n．打算；计划；意图；目的[以文化人]①She went t the area with intentin f helping peple in need.她去这个地区的目的是帮助有困难的人。
[应用融会]　(单句语法填空)②The bss intended his secretary ____________(attend) the meeting.③My children have n ____________(intend)f spending a vacatin with me.④The schl being built at present is said t be intended ___the disabled children.⑤They _____________ (intend) t g int the cuntry fr the day, but were put ff by reprts f traffic jams.
had intended
2．In case it happens t yu n a trip abrad, what wuld yu d?如果你在国外旅行时遇到这种情况，你会怎么做？★in case以防；以防万一[以文化人]①The WHO prpsed that all measures shuld be taken in case mankind was at the mercy f the virus. 世界卫生组织建议采取一切措施，以防人类受到病毒的摆布。
[应用融会]　(用in case/in case f填空)②The dctr shares his phne number with the patients __________they need medical assistance.医生与病人分享他的电话号码，以防他们需要医疗援助。③____________ rain，they can't g，which may discurage them.如果下雨，他们就不能去了，这或许会让他们失望。
Ⅰ.阅读下面短文，用适当的情态动词(含否定式)填空Miss Fang culdn't read fr very lng with her eyes hurt.Her mther tld her that she ① ______ g t hspital and see a dctr.“Yu shuld see a dctr as sn as pssible，” her mther said.“Yu ②__________ have pr eyesight.”When Miss Fang had free time, she went t hspital.The clerk said that the dctr ③_______ see her at 3：30.Miss Fang replied that she ④_______ nt be able t be there at 3：30 because she had a class then.“The dctr ⑤__________ see yu at abut ten t fur，” the clerk suggested. “Shall I arrange the examinatin at abut ten t fur, r ⑥ _______yu rather cme tmrrw？”
Miss Fang thught she ⑦___________ waste any mre time.The teacher shuldn't be unhappy if she asked fr permissin t leave the class a little earlier, as he was always s kind t everyne.And she replied, “I think I ⑧______ make it at abut ten t fur.”Miss Fang went t the class.She asked her teacher, “⑨______________ I leave at 3：45 tday? My eyes hurt and I ⑩_______ have an eye examinatin.” As expected, the teacher said, “Yes, f curse yu can.”
May/Can/Culd
Ⅱ.完成句子1．She said the bus __________(要离开) at five the next mrning.2．I wasn't sure whether he __________(将借给) me his bk the next mrning.3．At that time he did nt knw that quitting the jb ______________(将成为) the turning pint in his life.4．He said he __________________(打算参观) China the next week.5．In his intrductin, he made it clear that ur credits ___________(将会是) hard-earned.
was leaving
was t becme
was ging t visit
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