愛華網(wǎng)?must, have to和have got to的區(qū)別,小編整理了相關(guān)資料,以供參考:
一、must的用法
1)表示主觀的義務(wù)和必要, 主要用于肯定句和疑問句, 意思為“必須……,得……,要……”;由must引起的疑問句,肯定回答要用must或have to,否定回答要用needn’t或don’t have to, 意思是“不必”;must的否定形式mustn’t表示禁止,意思是“不能,不許”。如:
We must find a good method to learn computer well.
我們必須找一個學(xué)好電腦的方法。
―Must I finish the task right now?
我現(xiàn)在必須完成這個工作嗎?
―Yes, you must. / Yes, you have to. 是的。
(―No, you needn’t. / No, you don’t have to. 不,不必。)
You mustn’t come here without permission. 未經(jīng)允許,你不能來這兒。
2)表示肯定的猜測,常用于肯定句中,意思為 “一定是, 必然……”。
注意must表示推斷或猜測的幾種情況:
Your sister must be a doctor in this hospital. (現(xiàn)在的猜測)
你姐姐一定是這家醫(yī)院的醫(yī)生。
He must be reading newspapers in the reading room now.
(正在進(jìn)行的猜測)
他此刻一定正在閱覽室讀報。
It must have rained last night, for the ground is wet. (過去的猜測)
昨晚一定下雨了,因?yàn)榈孛嫔鲜菨竦摹?/p>
二、have to / have got to 的用法
I have to attend an important meeting this afternoon.
今天下午我不得不參加一個重要的會議。
Mother is out, so I have to look after the shop.
媽媽不在家,因此我不得不照看商店。
2)have to 的否定形式是don’t have to, 相當(dāng)于needn’t。如:
They don’t have to buy a computer at present.
高一英語專題之短語區(qū)別_高中英語動詞詞組
他們目前沒有必要買電腦。
3)have to 與have got to ?？梢曰Q。
三、鞏固練習(xí):
從A、B、C、D四個選項(xiàng)中,選出可以填入空白處的最佳選項(xiàng)。
1. Mike, you ______ play with fire. You______ burn yourself.
A. won’t; can’t B. mustn’t; may
C. don’t have to; must D. have got to; shouldn’t
2. You ______ see the doctor, Joe. You don’t look very well.
A. must B. shall
C. may D. can
3. ―Must I clean the window now?
―No, you ______.
A. mustn’t B. needn’t
C. can’t D. may not
4. Jack’s ill, so they ______ change their plans.
A. must B. should
C. have got to D. ought to
5. Harry has been reading all day ―he ______ be tired.
A. should B. has got to
C. has to D. must
Key 1: 1-5 BABCD
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