3、't=cannotdon't=donot知识点1:can 的用法1)can表示能力,意思是“能,会”。后面直接跟动词原形,用于一切人称和数。Can的否定形式为can not,其缩写为“can’t。如:We can speak much English now. 我们现在能说英语了。2)表示许可,意思是“可以”。如:You can watch TV after supper. 晚饭后你可以看电视。如:You can stay here for another six weeks. 你可以再待在这儿六个月。3) 和can相关的常用句型a)Can I help you? —Yes, please.
4、 / No, thanks. B)Can I borrow your book?----Yes,of course. c)Can I write on the book? ------No, you can’tmustn’t. 批注:could是can 的过去式,同时也可以用来表示委婉语气,但在小学阶段重点考察委婉语气的用法。如:Could Can you help me?---- Yes,of course.Certainly. Sure. Could Can you tell me the way to the Zoo? 情态动词的基本用法:1)情态动词没有人称和数的变化;如:
5、Li ming can speak English. 2)情态动词的后面必须跟动词原形; 如:He should go to school on time. 3)情态动词的句式变化A.变否定句,变化规则是在情态动词后面"not"。 例如:He can play the piano.(改成否定句)He can’t play the piano.B.变一般疑问句,变化规则是将情态动词直接提到句首,后面保持不变。例如:He can play the piano.(改成一般疑问句)Can he play the piano? C.变特殊疑问,变化规则是词加情态动词开头的一般疑问句。例如:He can
6、play the piano.(对划线部分提问) What can he play? 知识点2:Would表示建议“你愿意…吗”Would you like to go shopping with me? -----Yes, I’d love to. /I’d love to. But I’m busy now.Would you like something to eat/drink? ----Yes, I’d like…Unit2知识点一、单词:farfrom离……远near在……附近by…乘……bus公共汽车,大巴士onfoot步行metro地铁taxi出租车,的士bike自行车plan