如:The parrot can speak three languages. 这只鹦鹉能讲三种语言。
Can I borrow the book from the library?我可以从图书棺借这本书吗?
Shanghai can be very cold in March. 上海三月份可能会很冷。
拓展延伸can还有过去式could 可表“能,会”,又可以和be able to替换,而be able to有 更多时态。 如:
He could swim when he was four. =He was able to swim when he was four. 他四岁时就会 游泳 。 在一般疑问句中,can/could 常用来表示请求或征求对方意见,用could 比用can语气更加委婉和客气。类似用法的还有Will /Would you (please)…等句型。
如:Could you tell me how I can get to the post office? 你能告诉我怎样到邮局吗? Would you please turn up the radio?请你把收音机开大点,好吗?
1.完全系动词(be)可接名词、代词、形容词、副词、介词 短语 、非谓语动词短语、句子做表语。如: I'm a student. 我是个学生。(名词) He is fine. 他很好。(形容词) It is me. 是我。(代词) Are you there?你在那儿吗?(副词) She is at school. 她在学校读书。(介词短语) He is to come soon. 他过会儿该来了。(不定式) My job is teaching English. 我的工作是教英语。(动词的ing形式) My idea is that we will start now. 我的想法是我们现在就开始。(句子)
2.不完全系动词 (get,turn,feel,smell,look,sound,taste)一般只接形容词做表语。如:When spring comes, it gets warmer and warmer.
春天来了,天气变得越来越暖和了。 Food may go bad soon if it is not put into a fridge.
食物如果不放进冰箱里就会很快变坏。 My brother became / turned a teacher after his graduation.