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1.had better do sth.最好干某事. 否定:had better not do sth. 特别注意:had better后面跟be动词词组,不可漏掉be. eg.Youd better catch a train. Youd better not talk in class. Youd better not be late for the class. 2.It is good (nice)of+宾格+to do sth. eg.It is very good of you to teach me English. (你教我英语真是太好了) 3.It takes sb. some time to do sth.(干某事化费某人多少时间) =sb.spend some time on sth. (in) doing sth. eg.It took me half an hour to do the work. =I spent half anhourin doing the work. 4.sb.pay 钱 for 物 某物化费了某人多少钱 =sb.spend 钱 on 物 =物 cost sb.钱 pay的过去式为paid 而不是payed. eg.I paid thirty yuan for the coat. =I spent thirty yuan on the coat. =The coat cost me thirty yuan. 5.have been to 某人曾去过某地,现在人不在那儿 sb.have been in +地点 某人呆在某地(一段时间) have gone to 某人已去某地,人不在这儿 6.⑴ too形容词(副词)+to太而不能 太以致于不 eg.①The basket is too heavy for me to carry. 这篮子太重我拿不动。 | 
