abstract
- 讲解词汇：decline chance wind self-evident
- 讲解搭配：differ little from person to person life expectancy unless and until (the) better ... the more ... in the nature of things
- 讲解句型：There are heavy/overwhelming odds in favor of/against ... There is a virtual limit/restriction on ...
- 详细讲解if引导的让步状语从句的含义与运用；讲解课文第二段后半句替换成连词as引导的从句的用法
content
1.decline：deteriopate：变糟，变得更差
- His health has been decling progressively for several months.
- decline an invitation： 婉言谢绝
2.chance：可能性
- one's chances of doing ... are good/high.
- one's chances of doing ... are small/slight remote.
- the chances that ... are good/high.
- the chances that ... are small/slight/remote.
- 他赢得这次比赛的可能性很小。 His chances of winning the game are remote./The chances that he will win the game are remote.
3.wind：v.缠绕
- wind a watch：给手表上发条
- wind-wound-wonnd
4.self-evident：不言自明的
5.differ的搭配（程度增大）
- differ little：几乎没有差别
- differ a little：有点不同
- differ greatly/significantly/enormously：区别很大
6.from person to person的类似搭配
- vary from person to person：因人而异
- improve from day to day：日益改善
- read sth. from cover to cover：通读一遍
- sell sth. from door to door：挨家挨户卖东西
7.life expectancy：人口预期寿命
8.unless and until：除非或直到某个时候
9.(the) better ... the more=the more ... ,the better ...
- I play the piano the better the more I practice=The more I practice,the better I play the piano.
10.in the nature of things：必然的，理所当然的
- It is in the nature of things that time wrecks all love. 时间必然会毁掉所有爱情。
- in the nature of ...=similar to ...：相似于 ...
- His speech is in the nature of an apology. 他的话像在道歉。
11.There are heavy/overwhelming odds in favor of/against ...：某个东西很可能怎么样/不太可能怎么样
12.There is a virtual limit/restriction on ...：什么实际是有限制的
- There is a virtual limit on how fast we can run.
13."if"引导让步状语从句：
- 1.=even if ... 即使
- If he noticed the fact,he didn't care.
- 2.=althogh perhaps 尽管可能
- Donald's essays are always interesting,if something poorly written. 唐纳德的散文总是很有趣，尽管可能有时候文笔差了点
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