1、Book 3 Unit 3 重点短语讲解1. He was brought up in Hannibal, Missouri, along the Mississippi River. (P17)【归纳】 (1) bring sb up表示“培养，养育或教育某人”， 多用于被动语态。如：Her parents died when she was a baby and she was brought up by her aunt.(2) bring sth up意思是“提出某事”。如：Theres no need to bring up his past when we are consider
2、ing him for employment.(3) bring up 还可表示“呕吐”。如：Jane cant come, as shes been bringing up all morning. 【延伸】 bring down下跌；bring in引进；bring about 带来，产生；bring out拿出来，生产，出版；bring back 带回；bring to an end 结束。【易错点】 bring up和educate 有区别，bring up 表示孩子在家里受到的道德和社交训练；education则用来表示人们在中小学、大学等场所受到的训练（特别是智能和文化上的训练）。
3、如果我们说一个孩子badly brought up，那么，这可能意味着这孩子不懂礼貌或自私自利。说一个人well educated，则是说他受过好的教育、上过好的学校或好的大学。2. Not at all. Go right ahead. (P18)【归纳】 go ahead (1) 表示同意或允许，意为“说吧，做吧，开始吧，进行吧”。如：Do you mind if I smoke?No, go ahead. (2) 表示继续做某事，意为“继续吧”。如：Go ahead, were all listening. (3) 表示请对方先走或先做某事，可译为“你先请”。如：You go ahead
4、 and tell him that were coming.【延伸】 ahead of time / schedule提前；full speed ahead 全速前进；push ahead向前进，推进；ahead of在前头，早于，超过。【易错点】 go ahead与go right ahead用法一样，right 是有强调的意思，就相当于“好，直接，很赞同的意味”。表示继续做时，用go ahead with.。3. The fact is that I earned my passage by working as an unpaid hand, which accounts for my
5、 appearance. (P18)【归纳】 account for (1) 解释，说明。如：He could not account for his absence from school. (2) 对负有责任。如：Who will have to account for the misprints in the dictionary? (3) 占有。如：Girls only account for 20% this team. 【延伸】 keep an account of记录，记载； on account of因为，由于；bank account银行账户；take sth into ac
6、count 考虑，注意；on no accounts 绝不，无论如何都不；on ones account 为了某人的缘故。【易错点】 account for的主语可以是人，也可以是表示原因的事物。如：His headache accounts for his bad mood.表示“解释钱的用途”时，一般用account for，不用explain。如：You must account for every cent youve spent. 4. Well, we will have to take a chance. (P22)【归纳】 take a chance冒一冒险, 碰碰运气, 利用
7、一下机会。【延伸】 get a chance = have a chance 有机会；seize the chance 抓住机会；miss a chance 错过机会；lose a chance 失去机会；give sb a chance 给某人一次机会；by chance = by accident 恰巧、碰巧、偶然意外。【易错点】 (1)表示“冒险试做某事”时，用 take a chance on sth。如：We will take a chance on the weather and have a party outdoors. (2) take a chance与take the chance意思有区别，前者表“碰运气，冒险”；后者是“趁机，借此机会”。