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初二英語(yǔ)情態(tài)動(dòng)詞教案

時(shí)間:2022-10-01 01:51:20 教案 我要投稿
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初二英語(yǔ)情態(tài)動(dòng)詞教案

  情態(tài)動(dòng)詞表示說話人對(duì)動(dòng)作或狀態(tài)的各種觀點(diǎn)和態(tài)度,如需要、猜測(cè)、意愿或懷疑等。下面是小編整理的初二英語(yǔ)情態(tài)動(dòng)詞教案,僅供參考。

初二英語(yǔ)情態(tài)動(dòng)詞教案

  初二年級(jí)英語(yǔ)復(fù)習(xí)情態(tài)動(dòng)詞【1】

  1.情態(tài)動(dòng)詞表示可能

  (1) may :You may be wrong here are some trips that may help you

  (2) might是may的過去式,其可能性比may 小

  (3) 對(duì)可能性表示推測(cè)

  1)表示不太確定的推測(cè),用may 或 might

  2)表示確定的推測(cè),用must

  3)表示否定的推測(cè),用can't

  4)用副詞probably表示可能

  情態(tài)動(dòng)詞MUST 和 CAN

  1.must 的用法:

  (1)表示必須(做某事),如:anyway, I must do ti today無(wú)論如何,今天我必須把這事給做了

  (2)用mustn't表示禁止做某事,絕對(duì)不允許做某事,如:you mustn't drive a car at the age of 16

  2.can的用法

  (1)表示允許做某事,如:you can take photos in this museum

  (2)表示不允許做某事,如:you can't speak English like that

  情態(tài)動(dòng)詞【2】

  一、 情態(tài)動(dòng)詞的特征和形式

  a. 情態(tài)動(dòng)詞的各種形式見下表:

  情態(tài)動(dòng)詞

  may

  might

  can

  could

  must

  have to

  ought to

  will

  would

  shall

  should

  need

  dare

  used to

  否定式

  may not

  might not

  cannotcan not

  could not

  must not

  do not have to

  ought not to

  will not

  would not

  shall not

  should not

  need not

  dare not

  used not to

  did not use to

  簡(jiǎn)略否定式

  mayn't(老式英語(yǔ),現(xiàn)在不常見)

  mightn't

  can't

  couldn't

  mustn't

  don't have to

  oughtn't to (否定句中to可省略)

  won't

  wouldn't

  shan't (只用于英國(guó)英語(yǔ))

  shouldn't

  needn't

  daren't

  usedn't to

  didn't use to

  b.情態(tài)動(dòng)詞除ought to, used to等外,后面只接不帶to的不定式。

  1.情態(tài)動(dòng)詞+do

  you shouldn't be so careless. 你不該這樣粗心大意。

  jessica told him yesterday she might not go on the trip.

  杰西卡昨天告訴他,她可能不去旅行了。

  difficulties can and must be overcome.

  困難能夠而且必須克服。

  2.情態(tài)動(dòng)詞+be doing

  she must be listening to pop music.

  她肯定在聽流行音樂。

  you should be reviewing your lessons.

  你應(yīng)該在復(fù)習(xí)功課。

  my mother maymight be cooking now.

  我媽媽可能正在做飯。

  3.情態(tài)動(dòng)詞+have done

  they might have visited the great wall.

  他們可能參觀過長(zhǎng)城了。

  he must have got up very early to catch the train.

  他一定起得很早去趕火車了。

  you ought to have come earlier.

  你本該早一點(diǎn)兒來。

  4.情態(tài)動(dòng)詞+be done

  this word can also be used as a verb.

  這個(gè)詞也可以用作動(dòng)詞。

  something must be done to stop pollution.

  必須采取措施來制止污染。

  the work ought to have been finished long ago.

  這工作早就該完成了。

  c. 情態(tài)動(dòng)詞第三人稱單數(shù)一般現(xiàn)在時(shí)沒有詞形變化。

  you ought to wear a raincoat.

  你應(yīng)該穿件雨衣。

  she ought to wear a raincoat.

  她應(yīng)該穿件雨衣。

  plants must have oxygen in order to live.

  為了存活植物必須有氧氣。

  a plant must have oxygen in order to live.

  為了存活植物必須有氧氣。

  d. 情態(tài)動(dòng)詞的時(shí)態(tài)并不是區(qū)分時(shí)間的主要標(biāo)志。在一些場(chǎng)合中,情態(tài)動(dòng)詞的現(xiàn)在式和過去式都可以表示現(xiàn)在時(shí)間、過去時(shí)間或?qū)頃r(shí)間。

  i'm afraid it might rain tonight.

  我看今晚可能要下雨。

  could i borrow your thermos

  我可以借用你的暖水瓶嗎?

  it's a nice day today. we could go for a walk.

  今天天氣不錯(cuò),我們可以出去散散步。

  e. 情態(tài)動(dòng)詞是互相排斥的,一般不允許兩個(gè)意義相近的情態(tài)動(dòng)詞連用。

  【誤】soldiers must have to obey orders.

  【正】soldiers have to obey orders.

  軍人必須服從命令。

  【正】soldiers must obey orders.

  軍人必須服從命令。

  【誤】can i be able to borrow two books at a time

  【正】can i borrow two books at a time

  我能一次借兩本書嗎?

  【正】will i be able to borrow two books at a time

  我能一次借兩本書嗎?

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