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考点一:考查can/could的用法【知识清单】1.can/could表示能力时,意为“能、会”。can用于现在时态,could用于过去时态。2.can/could表示请求或许可时,意为“可以”。在此用法中,can/could都可用于现在时态,但在语气上could比can委婉、客气。句式Can(Could)I/We...?常用来表示要求或允许;句式Can(Could)you...?常用来表示请求。对Could I...?句式作肯定回答时要用can。如:1)-Can/Could I useyour pen?-Yes,you can.2)-Can/Could you do me a favour?-Yes,I can.3.can
Test a: test can / could use [knowledge list] 1.can / could said ability, meaning “can, will ”. can be used for present tense, could for past tense. 2.can / could said the request or permission, meaning “can ”. In this usage, can / could all be used for present tense, but could be more polite than polite, polite. Can (Could) I ... can often be used to indicate a requirement or permission. Can (Could) you ...? Is used to represent a request. Could I ...? Sentence for the positive answer to use can. Such as: 1) -Can / Could I useyour pen? -Yes, you can.2) -Can / Could you do me a favor? -Yes, I can.3.can