高中英語外研版 (2019)必修 第二冊Unit 2 Let's celebrate!精品課件ppt

這是一份高中英語外研版 (2019)必修 第二冊Unit 2 Let's celebrate!精品課件ppt，共34頁。PPT課件主要包含了Modals 2，v 表明 顯示，n 請求 要求，may，might，must?，could，B ，D 等內(nèi)容，歡迎下載使用。
Unit 2 Let’s celebrate!
T get t knw sme mdal verbs.T learn hw t use mdal verbs t make predictin.T learn hw t intrduce a traditinal Chinese festival.
1 Lk at the sentences frm the reading passage and answer the questins.
a That is why Letters frm Father Christmas culd be the perfect bk…b The children must have been very excited as they pened it.c … they might nt receive their presents if they were nt gd.
1) What d the wrds in red indicate: an rder, a request, ability r pssibility?
The wrds in red indicate pssibility.
2) Will the meaning f sentence (a) change if we replace “culd” with “must” r “might”?
If we replace “culd” with “must”, the meaning f sentence (a) will change. It means the speaker is quite sure abut the statement. If we replace “culd” with “might”, the meaning f sentence (a) will remain mre r less the same. “Culd” and “might” in affirmative sentences have a similar meaning when indicating pssibility.
3) What happens if we change “must” and “might” in sentences (b) and (c) int “culd”?
If we change “must” in sentence (b) int “culd”, it means the speaker is nt sure abut the statement, and it’s nly a pssibility. If we change “might” in sentence (c) int “culd”, it means it’s impssible fr the children t receive presents.
Lk fr mre sentences with mdals in the reading passage.
1) Wh culd it be frm?2) The letters were als beautifully illustrated --- each must have taken its true authr, Tlkien, a lng time t cmplete.3) In anther letter, Father Christmas cmplained abut hw he culd nt stp his helpers playing games with the tys instead f wrapping them up.4) … we can all share the true spirit f giving at Christmas time.
情態(tài)動詞must, can/culd, may/might均可表示推測, 它們可以對過去、現(xiàn)在或?qū)淼那闆r作出語氣強弱不同的推測。
把握推測語氣的特點，選擇恰當(dāng)?shù)那閼B(tài)動詞。
1. 表示肯定的推測時： 各情態(tài)動詞語氣從弱到強依次為 might → may → culd → can → must；
表示否定的推測時：can’t / culdn’t語氣較強，意為“不可能”；may nt / might nt語氣較弱，意為“可能不”。
must的否定形式mustn’t不表示否定推測，而是表示“不許可”或“不應(yīng)該”。
2. 情態(tài)動詞表示推測時, 在用法上有一些限制: ① must只用于肯定句中，意為“一定，準(zhǔn) 是”。如: This must be yur rm. ②culd多用于否定句和疑問句中。如： He lks yung. He culdn’t be ver 50. Culd it be true? ③may / might用于肯定句和否定句中。如： They may nt knw his address. She tld me that she might g t Hawaii this winter.
確定被推測時間，正確判斷動詞時態(tài)。
1.?對現(xiàn)在或?qū)淼那闆r進行推測時，用“情態(tài)動詞+ d”。 eg Yu must be Mr. Smith. I was tld t expect yu. Our team might win the race.
2.?對此時此刻正在進行的情況進行推測時，用“情態(tài)動詞+ be +動詞-ing形式”。 eg She may be waiting fr yu in the entrance hall at the mment. The plice are stpping all cars. They must be lking fr the escaped prisner.
3.?對過去的情況進行推測時，用“情態(tài)動詞+ have dne”。 eg I didn’t see Alex. He might have gne hme. I culdn’t have left my bag n the bus. They must have gtten lst r they’d be here by nw.
“情態(tài)動詞+ have dne”是高考的熱點，在做此類題時，要仔細體會題干中所提供的信息，尤其注意題干中給出的時態(tài)。
must have dne
一定，想必。表示對已經(jīng)發(fā)生的事情的肯定推測，語氣較強。eg It must have rained last night. The grund is wet.
may / might have dne
可能已經(jīng)，或許已經(jīng)。表示對已經(jīng)發(fā)生過的情況的肯定推測，語氣稍弱。eg He may / might have given yu mre help, even thugh he was busy.
culd have dne
不可能。表示對過去發(fā)生的一不定推測。eg They can’t have gne ut, because the light is n.
can’t / culdn’t have dne
表示過去本來能夠做某事而實際上沒有做eg He culd have passed the exam, but he was t careless.
I.?選用括號內(nèi)合適的內(nèi)容補全下面句子。1. Since they aren't answering their telephne, they ______________ (can have left, must have left).2. Mr. Reed lks pale. He _______ (can, may) be ill.
must have left?
3. They _______ (must, might) be hlding a meeting in the classrm. I’m nt sure.4. Yu?_______ (must, may) be Mr. Smith. I was tld t pick yu up. 5. ?They ________ live (culd, must) in?New Yrk, but I’m nt sure. 6. She was ill. She ______________________ (culdn't have attended, mustn't attend) the meeting here.
culdn't have attended
1. Jim says we ______ stay in his huse as lng as we leave it clean and tidy. (2020年天津卷單項填空) A.?must???B.?can????C.?need???D.?shuld
2. I can’t find my purse. I ________ it in the supermarket yesterday, but I’m nt sure. (2018年天津卷單項填空) A. shuld leave B. must have left C. might leave D. culd have left
2 Rewrite the underlined sentences in the cnversatin using can/culd, may/might and must.
(At a fancy dress party)Chris: I spent ages putting up all the ballns and flwers last night.Jean: I expect yu are feeling tired nw!Chris: Yes, I am. Lk that guy is dressed as Batman. Is that Mike? Jean: It’s pssibly him. Check ut that girl ver there. I’m sure that’s Lucy. Chris: N, I dn’t think that’s Lucy. Lucy isn’t that tall.Jean: Lk at thse tw guys dressed as chickens! Oh, they’re waving at us! Maybe they’re frm ur schl.Chris: Let’s g and find ut.
Yu must be tired nw!
It may/might/culd be him.
That must be Lucy!
that can’t be Lucy!
They may/might/culd be frm ur schl.
Black Friday is ne f the busiest shpping days f the year. Stres have big sales and pen their drs very early.
3 Lk at the picture and make as many sentences as pssible using can/culd, may/might and must.
The wman in red must be very excited t buy s many things.The man with a wallet in his hand might be a bit reluctant t pay.The wman in glasses may be very tired t get up s early and carry s many bags.The cashier might be feeling uncmfrtable as he is sweating a lt.…
D yu knw Singles Day? Make as many sentences as pssible using can/culd, may/might and must.
Lantern Festival celebratins
4 Underline the wrds and expressins abut celebratins during the Lantern Festival in the speech bubbles and cmplete the mind map. Add any mre yu can think f.
flwers, a scarf
a red envelpe, a dress…
rice balls, dumplings…
ballns, psters
banners, flwers…
hld a lantern fair, let ff firewrks
hld a lantern riddles cmpetitin, have a reunin dinner…
Describe a festival celebratin using the wrds and expressins yu have learnt.
T celebrate…, we ften drink/eat…, give… as gift, decrate with…