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    高中外研版Module 5 A Trip Along the Three Gorges学案及答案

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    这是一份高中外研版Module 5 A Trip Along the Three Gorges学案及答案,共6页。

    Module 5 A Trip Along the Three Gorges

    复习情态动词

    语 境 自 主 领 悟

     先观察原句

    后自主感悟

    ①They could go anywhere they wished.

    We could see the sun setting behind the white pagoda.

    We shouldn't waste a drop of water.

    It may be true.

    He might have some fever.

    Since it is raining,we have to stay indoors.

    We must learn English well.

    Must you listen to the loud music at night?

    1.①②句中情态动词表示“有能力做某事”。

    2.③句中情态动词表示“不应该(做某事)”。

    3.④⑤句中情态动词表示“推测”。

    4.⑥⑦句中黑体部分均表示“必须”must多表示主观意志have to多强调客观上的需要。

    5.⑧句中must意为“偏要硬要常常表示质问或不耐烦。

     

    1cancould (couldcan的过去式语气更委婉)

    (1)表示能力。

    He can use the computer skillfully now,but he couldn't last year.他现在能熟练使用电脑了但去年他不会。

    (2)表示可能性(肯定句中表示“一时的可能性”)可译为“有可能;有时会”。

    Training by oneself in a gym can be highly dangerous.一个人在体育馆训练有时会很危险。

    (3)表示许可。

    Can/Could I have a look at your new pen?

    Yes,you can./No,you can't.

    ——我可以看一看你的新钢笔吗?

    ——可以。/不可以。

    [名师点津]

    can 表示允许时在疑问句中用 could 更委婉在回答中一律用 can。

    (4)can/could在否定句、疑问句中表示推测或怀疑译为“可能”。

    That can't be Mary — she's in hospital.

    那不可能是玛丽——她在住院。

    Someone is knocking at the door.Who can it be?

    有人在敲门。可能是谁呢?

    (5)can't与enough或too连用表示“再……也不为过”。

    You can't be careful enough.

    你再细心也不为过。

    (6)can与be able to的区别。

    can表示“能力”时只有can与could两种形式仅表示具备的能力不说明是否实施了努力。

    be able to表示“能力”时可以用于各种时态, be able to 用于过去时态表能力时侧重指经过努力而成功做到某事。

    The fire spread through the hotel very quickly,but everyone was able to get out.

    大火在整个宾馆内迅速的蔓延开来但每个人都成功逃出来了。

    [即时训练1]选词填空:can, could, can't, couldn't, be able to

    However great the difficulties may be, we can overcome them.

    It was annoying; I couldn't get access to the data bank you had recommended.

    I was able to swim to the bank after the boat turned over.

    2maymight

    (1)表示允许或征询对方许可,might表示更加委婉的语气。(有时可与can/could互换)

    May I watch TV after supper?

    Yes,you may./No,you mustn't.

    ——晚饭后我可以看电视吗?

    ——是的可以。/不可以。

    否定回答时用can't或mustn't不用couldn't。

    (2)表示可能性,might可能性更小。

    They might be having a meeting,but I'm not sure.

    他们有可能在开会不过我不确定。

    (3)may放在句首可以表示祝愿。

    May God bless you!

    愿上帝保佑你!

    (4)may/might as well+动词原形意为“不妨”。

    If that is the case,you might as well try.

    如果事情是这样的你不妨一试。

    [即时训练2] 用适当的情态动词填空

    Life is unpredictable; even the poorest may/might become the richest.

    May you be happy every day and succeed in your work!

    ③—May I smoke in this room?

    No, you mustn't/can't

    3musthave to

    (1)二者均表示“必须”但 must 是指说话人的主观看法而 have to 则强调客观需要。must 用于一般现在时, have to 有更多的时态形式。

    I have to wait here because I have no umbrella with me.

    我不得不在这儿等因为我没带伞。(强调客观需要)

    I must recite the text this morning.

    今天早上我必须背下这篇课文。(强调主观意志)

    (2)must 所构成的疑问句,回答的否定形式通常为needn't 或 don't have to意为“不必要不用”而一般不说mustn't (表示“禁止”)。

    Must we hand in our exercise books today?

    Yes,you must./No,you don't have to/you needn't.

    ——我们今天必须交上练习册吗?

    ——是的,必须交上。/不没必要。/不不需要。

    You mustn't smoke here.

    你绝不能在这里吸烟。

    (3)must 常表示有根据的、比较确定的推测(只用于肯定的陈述句)译为“一定必定”。

    Your mother must be waiting for you now.

    你的母亲现在一定在等着你。

    (4)must 表示“偏要偏偏”。

    Why must you always interrupt me?

    你为什么非要一直打断我呢?

    [即时训练3] 用适当的情态动词填空

    If you must smoke, please go out.

    My brother was ill, so I had to call a doctor in.

    ③—Must I turn down the radio now?

    No, you needn't/don't have to

    4shallshould

    (1)shall用于第一、三人称的疑问句用来表示征询对方意见或请求指示。

    Shall I open the window?

    我可以打开窗子吗?

    Manager,someone is waiting for you.Shall he come in?

    经理有人在等你他可以进来吗?

    (2)shall用于第二、三人称的陈述句,表示说话人的意愿,有允诺警告命令强制威胁等意思。

    You shall get what you want if you behave well.

    如果你表现好的话你就会得到你想要的东西。(表示允诺)

    He shall be sorry for it one day,I tell you.

    有一天他会后悔的我告诉你。(表示警告)

    [名师点津]

    should 有时可用于某些从句中表示说话人惊奇、失望等感情色彩常译为“竟然怎么会”。

    I find it astonishing that he should be so rude to you.

    他竟然对你这样无理真让我吃惊。

    5willwould

    (1)表示请求、建议,would比will更委婉客气。

    Would/Will you pass me the ball,please?

    你可以把球传给我吗?

    (2)表示意志、愿望和决心,would用于过去的情况。

    I will help you if you meet with trouble.

    如果你有麻烦我乐意帮你。

    She said that she would try her best to help us.

    她说她愿意尽自己最大的努力来帮我们。

    (3)will表示规律意为“注定会”过去时用would。

    You will regret forever if you lose this golden chance.

    如果错过这次好机会你注定会终生后悔的。

    (4)would表示过去的习惯性动作;而used to表示过去常常做某事强调现在不是这样了。

    Each time his mother's birthday came,he would buy her a present.

    每次到他母亲生日的时候他都要给她买一件礼物。(表示过去的习惯)

    My father used to go to the office by bike when he was young.

    我父亲年轻的时候总是骑自行车去上班。(现在不是这样了)

    [即时训练4] 选词填空:shall, should, will, would, used to

    You shall/should finish your homework first before you go out and play.

    It is strange that such things should happen in our school.

    I used to drink coffee, but now I drink green tea.

    6needdare

    (1)need作情态动词时,表示需要;必须dare表示“敢、敢于”。常用于否定句和疑问句中后接动词原形否定形式分别为need not和dare not。

    You needn't answer him the question immediately.

    你不必立即回答他这个问题。

    ②—Need we make the test?

    Yes,we must./No,we needn't.

    ——们需要做这个试验吗?

    ——是的,需要。/不不需要。

    If he dare go,I'll go with him.

    如果他敢去我就跟着他去。

    (2)need和dare常用作实义动词有时态、人称和数的变化后面可接带to的不定式。

    You don't need to be told twice.

    不必告诉你两遍。

    Tom didn't dare to do it.

    汤姆不敢做那件事。

    [即时训练5] 用适当的情态动词填空

    You needn't see him,but I must.

    Dare you go home alone?

    ③—Need I pay the whole amount now?

    Yes,you must.

    He asked me whether I dare swim across the river.

    Ⅰ.用适当的情态动词填空

    1How can you miss the news? It has been on TV all day long.

    2You can keep the book for a month.After that you must return it on time.

    3The boy could speak three languages when he was 12 years old.

    4When he lived in the countryside, he would go fishing every day.

    5No student shall go out of the school campus after 10:00 at night without permission according to the school regulations.

    6You needn't get the machine repaired this week.I won't need it until next month.

    7It couldn't be the vocabulary that caused you the problem in the exercise because you know a lot of words.

    8You can't smoke here. Go out of the house if you must

    9I really can't thank you enough.It's been an amazing day!

    10Parents are doing all they can to help their children achieve their ambitions.

    .句改错

    1We can chose between staying at home and taking a trip.

     chose→choose

    2We must found ways to protect our environment. found→find

    3So real friendship should able to stand all sorts of tests.

     should后加be

    4I love the weekend, because I needn't to get up early on Saturdays and Sundays.               去掉to

    5It's quite warm here; we mustn't turn the heating on yet.

     mustn't→needn't

    6I have been practicing for three weeks now,but I still couldn't get used to itin fact,I've nearly killed three people.              couldn'tcan't

    7I thought although she was clever she must have difficulty learning a foreign language.              must→might

    8It has been announced that students will remain in their seats until all the papers have been collected.              will→shall

    9We should back around 4 o'clock in the afternoon.  back前加be

    10He mustn't be in the classroom, for the light has been turned off.  mustn't→can't

     

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