Passage One
　　Questions 21 to 25 are based on the following passage.
　　A recent study, published in last week’s Journal of the American Medical Association, offers a picture of how risky it is to get a lift from a teenage driver, Indeed, a 16-year-old driver with three or more passengers is three times as likely to have a fatal accident as a teenager driving alone, By contrast, the risk of death for drivers between 30 and 59 decreases with each additional passenger.
　　T

Unit One      The Olympics

一、       语法要点：

1、情态动词must, can’t 表是推断、推论的用法

注意区别：常用的情态动词may, might, could等可以表示可能性（推测或猜测）

介词与连词区分并不难。

连词通常用来引导从句，（并列连词还可以连接单词或词组），连词有两类，
1）并列连词（记住即可）
and, but, so, or, for,...
2)从属连词，就是那些引导主语从句、宾语从句、状语从句、定语

round 和around的意思相近,但用法不完全相同.
异同如下:
around round
作介词用的around与round通常可以互换，只不过美语常用around，而英语常用round，例如：You can see the post office round/around that corner. (绕过那个弯你就可以看到邮局。但是一定要区别它们的不同之处：round可以用作形容词、副词、介词、动词、名词；而around只能用作副词或介词。例如：The post office is just round (around) the house (用作介词). He has round face (用作形容词). The river rounded the stones. (用

round 和around的意思相近,但用法不完全相同.
异同如下:
around round
作介词用的around与round通常可以互换，只不过美语常用around，而英语常用round，例如：You can see the post office round/around that corner. (绕过那个弯你就可以看到邮局。但是一定要区别它们的不同之处：round可以用作形容词、副词、介词、动词、名词；而around只能用作副词或介词。例如：The post office is just round (around) the house (用作介词). He has round face (用作形容词). The river rounded the stones. (用

regard    sb/sth把……当成……
Regard you as my best friend.把你当成我最好的朋友。

in/with regard to sb/sth关于
With regard to the money, we'd better be careful.对于钱，我们还是小心一点好

用but的时候。一般情况下，but后面的句子根前面有某种程度上的相反
ex: I want to go home, but I can't.
ex: The shoes are Nike brand, but they are fake
ex: This dress is fancy, but it doesn't fit me
unless就像是“除非” 需要除非。。后面的句子让句子成立
ex:sports shoes were not shoes unless they were Nike or Reebok

－nike和reebok牌子的鞋子才算是运动鞋，其他根本就不算
－运动鞋根本就不能说是鞋子，“除非”它们是nike或者reebok的牌子

Carry 搬运 一般指拿比较重的东西
take 带来它是的意识是往外带，可以理解为带走，从你这里把什么东西带出去
fetch 的意思是去取 去拿 命令语气比较重
bring 带来它的意思是从外面往里带 可以理解为把什么东西带给自己