初中英語(yǔ)情態(tài)動(dòng)詞講解-資料下載頁(yè)
2025-04-03 23:52本頁(yè)面
【正文】 I’m sure you’ll be able to finish it 。We were able to reach the top of the mountain at 。易混點(diǎn)二:can和may1. can和may均可用來(lái)征求意見(jiàn)或許可，意為“可以”，一般可互換使用。如：Can/ May I help you ? 我能幫助你嗎？ 2. can和may表示可能性時(shí)的區(qū)別：1)在肯定句中用might，may，must，不用can2)在疑問(wèn)句中表示推測(cè)用can，不用might，may，must3)在否定句中用can’t（不可能），不用may，must。如：She may be in the classroom .她可能在教室里。Where can they be now?他們現(xiàn)在可能在哪兒？That can’t be 。易混點(diǎn)三: may be和maybe 用法區(qū)別 常用位置may be may為情態(tài)動(dòng)詞，be為動(dòng)詞原形 句中，作謂語(yǔ)maybe 副詞，大概、也許，相當(dāng)于perhaps 句首，作狀語(yǔ)例如：He may be wrong , but I’m not ，但我也不確定。易混點(diǎn)四：can’t和1. can’t根據(jù)其基本用法可譯為：（1）不會(huì)。如：I can’t speak English .我不會(huì)說(shuō)英語(yǔ)。（2）不能。如：We can’t do it now because it’s too ，我們現(xiàn)在干不了。（3）否定句中表示推測(cè)?！安豢赡堋?，如：The man can’t be our teacher because he is much younger than our teacher..那個(gè)人不可能是咱們老師，他年輕得多。易混點(diǎn)五：must和have to。have to側(cè)重于客觀上的必要，可用于現(xiàn)在時(shí)、過(guò)去時(shí)和將來(lái)時(shí)。如：I know I must study 。My brother was very ill, so I had to call the doctor in the ，我只得半夜里把醫(yī)生請(qǐng)來(lái)。I haven’t got any money with me, so I’ll have to borrow some from my ，只好向朋友借點(diǎn)了。He said they must work 。2. have to可以用于多種時(shí)態(tài)；而must只用于一般現(xiàn)在或?qū)?lái)。如：The position is due to hand in this morning, so I had to finish it last ，因此我不得不昨天晚上完成。易混點(diǎn)六: used to do / be used to doing / be used to do…/ be used for doing used to do表示過(guò)去常常發(fā)生的動(dòng)作，強(qiáng)調(diào)過(guò)去，只用于過(guò)去，注意用to do，不用doing形式；而be used to doing意為“習(xí)慣做…”，be可有各種時(shí)態(tài)；be used to do意為“……被使用去做……,”為被動(dòng)語(yǔ)態(tài)形式。be used for doing 用作……”如：My father used to eating ，但現(xiàn)在不得不早起了。She is used to eating 。He wat used to eating in a 。A knife can be used for cutting things.(刀可以用來(lái)割東西)/ A knife can be used to cut things.(刀可以用來(lái)割東西)7
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