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外研版 (新标准)八年级上册Module 12 HelpUnit 3 Language in use .课文课件ppt
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这是一份外研版 (新标准)八年级上册Module 12 HelpUnit 3 Language in use .课文课件ppt，共38页。PPT课件主要包含了 Ready等内容，欢迎下载使用。
T summarise and cnslidate the use f mdal verbs — must, can, culd (fr predictin)T learn the imperative fr suggestins and instructins
●The phne is ringing. It culd be Nick.电话响了，可能是尼克打来的。●I dn’t knw when they’ll be here. They culd arrive at any time.我不知道他们多会来，他们可能随时会来。● This new drug culd be an imprtant step in the fight against cancer.这种新药可能是攻克癌症过程中迈出的重要一步。
Read the cnversatins and pay attentin t the circled parts.
1. That culd be harmful!2. Betty, yu must knw!3. But he culd have truble hearing yu r speaking t yu.4. Yu culd drp him and hurt him even mre.
ObserveObserve
Observe the fllwing sentences carefully and pay attentin t the wrds in red.
1. That _______ be harmful!2. Betty, yu _______ knw!3. But he ________ have truble hearing yu r speaking t yu.4. Yu _______ drp him and hurt him even mre.
情态动词must,can,culd表推测情态动词must,can,culd表推测
情态动词 must/can/culd 表示推测
我们学习过情态动词 can 和 culd 表示“能够，可以”等意义的用法。can 和 culd 还可以表示对现在或将来的推测，意为“会, 可能”，但 can 表示推测时，往往用于否定句和疑问句。用于疑问句时，can 比 culd 表示的“可能性”要大；用于否定句时，cannt (can’t)表示“不可能”。例如： He can’t be at hme. 他不可能在家。
culd 则可用于肯定句、否定句和疑问句。在以下例句中，can 和 culd 均表示可能： He culd be in pain. 他可能很疼。 That culd be harmful! 那可能有害！ Can/Culd this be true? 这有可能是真的吗?
情态动词 must 也可以表示猜测，意思为“一定，准是”，通常只用于肯定句。如课文中的例子： Betty, yu must knw! 贝蒂，你肯定知道！
请仔细对比下列一组句子： Wh sent the present? Can it be yur brther? 是谁送来的礼物啊？会是你哥哥吗？（询问可能性） It must be yur brther. I saw him in yur rm just nw. 肯定是你哥哥，我刚才看见他在你的房间里。 （语气强烈，表示非常肯定） It can’t be my brther. He is still in France. 不可能是我哥哥，他还在法国呢。（表示不可能）
1. Hide under a table. Stay away frm windws and heavy furniture. Keep Clear f fires. 2. Leave the buildings quickly …3. Keep calm, … Be brave and be helpful.4. Mve away frm buildings, …5. Stay away frm bridges and trees. 6. In the muntains, be careful f falling rcks.7. On a beach, run away frm the sea and mve quickly t higher grund.
What shall we d r nt d if an earthquake happens?
RevisinRevisin
1. Dn’t jump ut f high buildings. 2. Dn’t stand near street lights r under pwer lines.
1. Stay away frm windws and heavy furniture.2. D nt stand near street lights r under pwer lines.3. Make sure he’s warm. Cver him with a cat.4. Find ut what’s wrng with him.5. D nt jump ut f high buildings.6. On a beach, run away frm the sea and mve quickly t higher grund.
1. _______ _______ _______ (stay) windws and heavy furniture.2. _______ _______ (stand) near street lights r under pwer lines.3. _______ ______ (make sure) he’s warm. _______ him with a cat.4. _______ _____ (find) what’s wrng with him.5. ______ ______ ______ ______ _____ (nt jump) high buildings.6. On a beach, _____ ______ ______ (run) the sea and ______ (mve) quickly t higher grund.
Make sure
Find ut
D nt jump ut f
run away frm
Stay away frm
Dn’t stand
祈使句表达说话人对对方的叮嘱、劝告、希望、禁止、建议、请求或命令等。祈使句一般以动词原形开头，无时态和数的变化。常见的祈使句如下： 1.动词原形构成的祈使句 2.let’s构成的祈使句 3.无动词祈使句
1. 动词原形构成的祈使句 此类祈使句暗含的主语是yu，但通常省略。否定句往往由 d nt（dn’t）或 never 开头。
Have a nice day! 祝你度过美好的一天！Dn’t waste yur time! 别浪费时间了！Never be late again! 再也不要迟到了！
Cme this way, please. 请走这边。Please be quiet, bys! 男孩们，请安静！
祈使句的句首或句末有时加 please，还可以加上称呼语，用逗号与句子主体隔开。
2. let’s构成的祈使句 这类祈使句往往用于提出建议。 Let’s spend this weekend in the cuntryside. 这周咱们到乡下度周末吧。 Let’s take a taxi, shall we? 我们坐出租车好吗？
3. 无动词祈使句 在请求、命令和口号中，常用无动词祈使句，它实际上是省略了动词，从而使语句更简洁有力。 Just a minute, please! 请稍等！ This way, please! 请这边走！
1 It is dangerus. Yu _____ keep ut!2 These stairs are nt safe. Yu ______ use them.3 The rcks are falling dwn. Yu ______ get hit.4 The river is t deep. Yu _______ swim in it.5 Betty _____ knw what t d because she did sme basic medical training.
Cmplete the sentences with culd, must r mustn’t.
Underline the crrect wrds t cmplete the first aid instructins.
1 Get / D nt get medical help immediately.2 Ask / D nt ask them where the pain is.3 Lift / D nt lift them because yu may drp them.4 Keep / D nt keep them warm.
When there is an earthquake _________ frm the windws.2 __________ a table.3 __________ the lift.4 ______ the building quickly when the grund stps shaking.5 _____ calm.
d nt use hide under keep leave stay away
Cmplete the pster abut earthquakes with the crrect frm f the wrds and expressins in the bx.
Tny: Daming is training hard fr the big match.Lingling: Yes, the team has a gd (1)________ this year.Tny: Oh n, Daming’s (2)_________. He’s dwn!Lingling: It lks like he’s (3)________.Tny: Daming, what happened?Daming: It’s my leg.Lingling: (4) _______ him with my cat.Tny: But dn’t mve him. Let’s wait fr smene with (5) ________ training.Lingling: OK.
chance Cver in pain in truble medical
Cmplete the cnversatin with the wrds and expressins in the bx.
Infrmatin is cming in that there culd be (1) ________ because f heavy rain in the nrth. The gvernment is (2) ________ peple abut falling (3) _______. Sme rads have a lt f rcks n them, but peple are trying t (4) ________ them quickly. In sme places there is n (5) _______. And peple must stay (6) _________ t keep away frm falling rcks.
Cmplete the news reprt with the crrect frm f the wrds in the bx.
clear inside pwer rck truble warn
Nw read the reprt again and check (√) the true sentences.
1. There are prblems everywhere because f rain.2. The gvernment is warning peple abut an earthquake.3. Sme rads in the muntains have a lt f rcks n them.4. Peple are trying t clear the rcks ff the rads.5. There is n prblem with pwer.
1. We were having _______ at hme when the earthquake happened.2. The rm started t ________.3. Father shuted t everyne t get under the ____________.4. We culd nt get ut f the rm because the ______ wuld nt pen.5. My father called fr help n his __________.6. Peple came t help us and we left ur ________.
Listen and cmplete the sentences.
kitchen table
1. What is the best title fr this passage? a) 2004 Asian tsunami. b) A girl saves turists frm tsunami. c) Underwater earthquakes. 2. What did Tilly ntice? a) Water cming t the beach. b) Peple watching the water. c) Bubbles in the water.3. What des her teacher think f Tilly? a) She is lucky. b) She des nt d silly things. c) She is a clever student.
Read the passage and chse the crrect answer.
Mre knwledgeMre knwledge
Making a pster abut preventing accidents at schl.
Mdule task:
Step 1: Make a list f accidents that can happen at schl.
Step 2: Wrk in grups. Chse an accident frm the list in Activity 8 and give instructins abut what t d.
Step 3: Making a pster abut preventing accidents at schl using must/mustn’t.
Step 4: Present yur pster t the class.
Summary ⅠSummary Ⅰ
◆can和culd可以表示对现在或将来的推测。但can常用于否定句和疑问句中，can表达可能性，有惊异、怀疑、不相信之意。◆can’t表示“不可能”。◆culd表示推测可以用于肯定句，否定句和疑问句。◆“must be + 表语”表示对现在情况的推测，通常用于肯定句，意为“一定，准是”。
常见的祈使句如下： 1. 动词原形构成的祈使句 2. let’s构成的祈使句 3. 无动词祈使句
Summary ⅡSummary Ⅱ
I. 用culd, must或mustn’t 填空。1. We ______ be careful when we’re walking acrss the rad. There’re t many cars nw. 2. Yu ______ swim in this river because it’s t deep.3. Listen! Smene is kncking at the dr. Wh ______ it be?4. If yu want t crss a street, yu ______ wait fr the green lights.5. Yu ______ make a lt f nise when yu are in a reading rm.
II. 按要求完成句子。1. Yu must be careful with yur handwriting. (改为祈使句) _____ _______ with yur handwriting.2. Talk and read ludly in class. (改为否定句) ______ _____ and read ludly in class.3. The girl singing in the next rm must be Lucy. (改为否定句) The girl singing in the next rm _____ _____ Lucy.
Be careful
Dn’t talk
III. 根据提示，用祈使句型写出句子。1. 请举起你的右手。 2. 不要在课堂上大声说话。 3. 咱们一起上学去吧。 4. 请来两块面包。 5. 再不要这样做了。
Never d that again.
Please put up yur right hand.
Dn’t talk ludly in class.
Let’s g t schl tgether.
Tw pieces f bread, please.
T summarise and cnslidate the use f mdal verbs — must, can, culd (fr predictin)T learn the imperative fr suggestins and instructins
●The phne is ringing. It culd be Nick.电话响了，可能是尼克打来的。●I dn’t knw when they’ll be here. They culd arrive at any time.我不知道他们多会来，他们可能随时会来。● This new drug culd be an imprtant step in the fight against cancer.这种新药可能是攻克癌症过程中迈出的重要一步。
Read the cnversatins and pay attentin t the circled parts.
1. That culd be harmful!2. Betty, yu must knw!3. But he culd have truble hearing yu r speaking t yu.4. Yu culd drp him and hurt him even mre.
ObserveObserve
Observe the fllwing sentences carefully and pay attentin t the wrds in red.
1. That _______ be harmful!2. Betty, yu _______ knw!3. But he ________ have truble hearing yu r speaking t yu.4. Yu _______ drp him and hurt him even mre.
情态动词must,can,culd表推测情态动词must,can,culd表推测
情态动词 must/can/culd 表示推测
我们学习过情态动词 can 和 culd 表示“能够，可以”等意义的用法。can 和 culd 还可以表示对现在或将来的推测，意为“会, 可能”，但 can 表示推测时，往往用于否定句和疑问句。用于疑问句时，can 比 culd 表示的“可能性”要大；用于否定句时，cannt (can’t)表示“不可能”。例如： He can’t be at hme. 他不可能在家。
culd 则可用于肯定句、否定句和疑问句。在以下例句中，can 和 culd 均表示可能： He culd be in pain. 他可能很疼。 That culd be harmful! 那可能有害！ Can/Culd this be true? 这有可能是真的吗?
情态动词 must 也可以表示猜测，意思为“一定，准是”，通常只用于肯定句。如课文中的例子： Betty, yu must knw! 贝蒂，你肯定知道！
请仔细对比下列一组句子： Wh sent the present? Can it be yur brther? 是谁送来的礼物啊？会是你哥哥吗？（询问可能性） It must be yur brther. I saw him in yur rm just nw. 肯定是你哥哥，我刚才看见他在你的房间里。 （语气强烈，表示非常肯定） It can’t be my brther. He is still in France. 不可能是我哥哥，他还在法国呢。（表示不可能）
1. Hide under a table. Stay away frm windws and heavy furniture. Keep Clear f fires. 2. Leave the buildings quickly …3. Keep calm, … Be brave and be helpful.4. Mve away frm buildings, …5. Stay away frm bridges and trees. 6. In the muntains, be careful f falling rcks.7. On a beach, run away frm the sea and mve quickly t higher grund.
What shall we d r nt d if an earthquake happens?
RevisinRevisin
1. Dn’t jump ut f high buildings. 2. Dn’t stand near street lights r under pwer lines.
1. Stay away frm windws and heavy furniture.2. D nt stand near street lights r under pwer lines.3. Make sure he’s warm. Cver him with a cat.4. Find ut what’s wrng with him.5. D nt jump ut f high buildings.6. On a beach, run away frm the sea and mve quickly t higher grund.
1. _______ _______ _______ (stay) windws and heavy furniture.2. _______ _______ (stand) near street lights r under pwer lines.3. _______ ______ (make sure) he’s warm. _______ him with a cat.4. _______ _____ (find) what’s wrng with him.5. ______ ______ ______ ______ _____ (nt jump) high buildings.6. On a beach, _____ ______ ______ (run) the sea and ______ (mve) quickly t higher grund.
Make sure
Find ut
D nt jump ut f
run away frm
Stay away frm
Dn’t stand
祈使句表达说话人对对方的叮嘱、劝告、希望、禁止、建议、请求或命令等。祈使句一般以动词原形开头，无时态和数的变化。常见的祈使句如下： 1.动词原形构成的祈使句 2.let’s构成的祈使句 3.无动词祈使句
1. 动词原形构成的祈使句 此类祈使句暗含的主语是yu，但通常省略。否定句往往由 d nt（dn’t）或 never 开头。
Have a nice day! 祝你度过美好的一天！Dn’t waste yur time! 别浪费时间了！Never be late again! 再也不要迟到了！
Cme this way, please. 请走这边。Please be quiet, bys! 男孩们，请安静！
祈使句的句首或句末有时加 please，还可以加上称呼语，用逗号与句子主体隔开。
2. let’s构成的祈使句 这类祈使句往往用于提出建议。 Let’s spend this weekend in the cuntryside. 这周咱们到乡下度周末吧。 Let’s take a taxi, shall we? 我们坐出租车好吗？
3. 无动词祈使句 在请求、命令和口号中，常用无动词祈使句，它实际上是省略了动词，从而使语句更简洁有力。 Just a minute, please! 请稍等！ This way, please! 请这边走！
1 It is dangerus. Yu _____ keep ut!2 These stairs are nt safe. Yu ______ use them.3 The rcks are falling dwn. Yu ______ get hit.4 The river is t deep. Yu _______ swim in it.5 Betty _____ knw what t d because she did sme basic medical training.
Cmplete the sentences with culd, must r mustn’t.
Underline the crrect wrds t cmplete the first aid instructins.
1 Get / D nt get medical help immediately.2 Ask / D nt ask them where the pain is.3 Lift / D nt lift them because yu may drp them.4 Keep / D nt keep them warm.
When there is an earthquake _________ frm the windws.2 __________ a table.3 __________ the lift.4 ______ the building quickly when the grund stps shaking.5 _____ calm.
d nt use hide under keep leave stay away
Cmplete the pster abut earthquakes with the crrect frm f the wrds and expressins in the bx.
Tny: Daming is training hard fr the big match.Lingling: Yes, the team has a gd (1)________ this year.Tny: Oh n, Daming’s (2)_________. He’s dwn!Lingling: It lks like he’s (3)________.Tny: Daming, what happened?Daming: It’s my leg.Lingling: (4) _______ him with my cat.Tny: But dn’t mve him. Let’s wait fr smene with (5) ________ training.Lingling: OK.
chance Cver in pain in truble medical
Cmplete the cnversatin with the wrds and expressins in the bx.
Infrmatin is cming in that there culd be (1) ________ because f heavy rain in the nrth. The gvernment is (2) ________ peple abut falling (3) _______. Sme rads have a lt f rcks n them, but peple are trying t (4) ________ them quickly. In sme places there is n (5) _______. And peple must stay (6) _________ t keep away frm falling rcks.
Cmplete the news reprt with the crrect frm f the wrds in the bx.
clear inside pwer rck truble warn
Nw read the reprt again and check (√) the true sentences.
1. There are prblems everywhere because f rain.2. The gvernment is warning peple abut an earthquake.3. Sme rads in the muntains have a lt f rcks n them.4. Peple are trying t clear the rcks ff the rads.5. There is n prblem with pwer.
1. We were having _______ at hme when the earthquake happened.2. The rm started t ________.3. Father shuted t everyne t get under the ____________.4. We culd nt get ut f the rm because the ______ wuld nt pen.5. My father called fr help n his __________.6. Peple came t help us and we left ur ________.
Listen and cmplete the sentences.
kitchen table
1. What is the best title fr this passage? a) 2004 Asian tsunami. b) A girl saves turists frm tsunami. c) Underwater earthquakes. 2. What did Tilly ntice? a) Water cming t the beach. b) Peple watching the water. c) Bubbles in the water.3. What des her teacher think f Tilly? a) She is lucky. b) She des nt d silly things. c) She is a clever student.
Read the passage and chse the crrect answer.
Mre knwledgeMre knwledge
Making a pster abut preventing accidents at schl.
Mdule task:
Step 1: Make a list f accidents that can happen at schl.
Step 2: Wrk in grups. Chse an accident frm the list in Activity 8 and give instructins abut what t d.
Step 3: Making a pster abut preventing accidents at schl using must/mustn’t.
Step 4: Present yur pster t the class.
Summary ⅠSummary Ⅰ
◆can和culd可以表示对现在或将来的推测。但can常用于否定句和疑问句中，can表达可能性，有惊异、怀疑、不相信之意。◆can’t表示“不可能”。◆culd表示推测可以用于肯定句，否定句和疑问句。◆“must be + 表语”表示对现在情况的推测，通常用于肯定句，意为“一定，准是”。
常见的祈使句如下： 1. 动词原形构成的祈使句 2. let’s构成的祈使句 3. 无动词祈使句
Summary ⅡSummary Ⅱ
I. 用culd, must或mustn’t 填空。1. We ______ be careful when we’re walking acrss the rad. There’re t many cars nw. 2. Yu ______ swim in this river because it’s t deep.3. Listen! Smene is kncking at the dr. Wh ______ it be?4. If yu want t crss a street, yu ______ wait fr the green lights.5. Yu ______ make a lt f nise when yu are in a reading rm.
II. 按要求完成句子。1. Yu must be careful with yur handwriting. (改为祈使句) _____ _______ with yur handwriting.2. Talk and read ludly in class. (改为否定句) ______ _____ and read ludly in class.3. The girl singing in the next rm must be Lucy. (改为否定句) The girl singing in the next rm _____ _____ Lucy.
Be careful
Dn’t talk
III. 根据提示，用祈使句型写出句子。1. 请举起你的右手。 2. 不要在课堂上大声说话。 3. 咱们一起上学去吧。 4. 请来两块面包。 5. 再不要这样做了。
Never d that again.
Please put up yur right hand.
Dn’t talk ludly in class.
Let’s g t schl tgether.
Tw pieces f bread, please.
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