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nEED也是情态动词,在表示做什么事时为什么shoulD...

need既可做情态动词,也可做实义动词 情态动词:need do;needn't do. We need hurry.我们需要赶快了. We needn't hurry.我们不必赶忙. 实义动词:need to do; don't need to do. We need to get enough sleep.我们需要充分地睡眠. We don't nee...

should是情态动词 need 1.动词,“需要”,一般与to连用,need to do ... 2.情态动词,后跟动词原形 3. 名词,“需要,必要”

必须must 可能might may 能够could can 应该should 需要need 敢dare need和dare 既可以做实义动词也可以做情态动词。做实义动词时+to do 做情态动词时直接+动词原形

1、should 作为情态动词,通常用来表示现在或将来的责任或义务,译作“应该”、“应当”,这时它可以和 ought to, be supposed to 互换使用.例如: You should (= ought to ) tell your mother about it at once. 2、should 作为情态动词,可以用在条...

有关情态动词的用法,如下说明很周详,希望能给你参考。 一、 can, could 1) 表示能力(体力、知识、技能)。 Can you lift this heavy box?(体力) Mary can speak three languages.(知识) Can you skate?(技能) 此时可用be able to代替。...

情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等. 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语 一、 can, could 1) 表示能力(体力、知...

1.情态助动词包括 will,would,shall,should,can,could,may,might,must,need,dare,ought to,used to等,后接原形不定式。 2.情态助动词不受主语的人称和数的限制。 3.两个情态助动词不能连用。 快采纳哟,不明还可以追问的,嘻嘻!

1 D may I 是日常英语征询对方意见的惯用语 2 A 用couldn't 表示对过去事件的否定猜测 3 C 用could表示对过去事件的疑问 4 A 表示“不可能” 和第2题相似 5 C 同上 6 C could have helped(done)(你大概打错了) 表示“本能够做却没有做”有责怪的意味

young trees must be watered often. your mistakes should be corrected right now. the objects in the film can be touched. special gloves must be wron.

should modal verb (negative should not, short form shouldn't ) 1 used to show what is right, appropriate, etc., esp. when criticizing sb's actions (常用於纠正别人)应该,应当 : You shouldn't drink and drive. 你不该酒後驾车。 ...

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