shopping made easy

    People are not so honest as they once were. The temptation to steal is greater than ever before -- especially in large shops. A detective recently watched a well-dressed woman who always went into a large store on Monday mornings. One Monday, there were fewer people in the shop than usual when the woman came in, so it was easier for the detective to watch her. The woman first bought a few small articles. After a little time, she chose one of the most expensive dresses in the shop and handed it to an assistant who wrapped it up for her as quickly as possible. Then the woman simply took the parcel and walked out of the shop without paying. When she was arrested, the detective found out that the shop assistant was her daughter. The girl 'gave' her mother a free dress once a week!

重点用法　

　　　　　1．One Monday, there were fewer people in the shop than usual when the woman came in, so it was easier for the detective to watch her. 有一个星期一，当这位妇女走进这家商场时，里面的人比往常少，因此，侦探比较容易监视她。
　　（1）one在此处表示“某一个”，不能用a 代替。

a与one，它通常用于表示不确定的人或事物以及第一次提到的人或事物：
　　I met a well-dressed woman this morning.
　　今天上午我遇见了一位穿着考究的妇女。
　　表示数量时，one比a 的语气要强：
　　It was one apple I ate, not two.
　　我吃了一个苹果，而不是两个。（不可用a）
　　There is a book and a pen on the desk.
　　书桌上有一本书和一枝笔。
　　I read only one book this week.
　　这星期我只读了一本书。（不可用a代替）
　　不表示强调时，a和one有时可以互换：
　　She will come home in a/one week's time.
　　她一周以后就会回家。
　　叙述故事时常将“one+ 表示时间的名词”用于句首，而不用a：
　　One day, a policeman came to his house.
　　有一天，一个警察来到了他家。
　　One Monday, he went to the office as usual.

　　（2）这个句子较长，there were引导的是主句，when引导的是它的时间状语从句，so引导的是结果状语从句，在主句和结果状语从句中又分别隐含比较状语从句。在结果状语从句中，it为先行词，真正的主语是不定式短语for the detective to watch her。不定式短语往往较长，作主语时通常要用先行词it作为形式主语：
　　It is easy for you to help me.
　　你帮助我是很容易的。
　　2．as quickly as possible，以最快的速度。
　　as…as possible为固定短语，表示“尽可能”：
　　He went home as soon as possible.　　他尽快回了家。
　　I have sent you as many books as possible.
　　我已经把书尽可能多地给你送来了。
　　　　3．The girl‘gave’her mother a free dress once a week! 那姑娘每星期“送”她母亲一件免费的衣服！
　　（1） gave加引号，表示姑娘不是真正给，而是偷。
　　（2） free在这里的含义为“免费的”、“不要钱的”：
　　Children under five years old travel free.　　5岁以下儿童免费旅行。
　　Tom gave me two free tickets.　　汤姆给了我两张免费的票。
　　（3）“once a+ 表示时间的名词”可以表示频率：
　　He comes to the office once a day.
　　他每天来办公室一次。
　　Frank writes to his mother once a month.
　　弗兰克每个月给他母亲写一次信。

　　语法 Grammar in use
　　1．比较状语从句
　　在第8课的语法中，我们学习了形容词和副词的比较级和最高级。在比较级的用法中，实际上我们已接触到比较状语从句：
　　I know him better than you do.
　　我比你了解他。（than后面为比较状语从句）
　　比较状语从句含有或暗含有“与……相比”的意思。除了than…或 more… than…　这种结构外，它还包括“ as+形容词/副词+as…”, “not so/as… as…”, “less… than…”等结构。当句子里两个动词相同、时态也一样时，则第2个动词可以省略，比较从句就成了含蓄的从句。如果对比的东西很明显，那么为了避免重复，从句中有些成分、甚至整个从句都可以省略，因此这类句子往往不完整。比较完整的句子读起来要正规些，读下面的例子：

He is as tall as I.
　　This case is as light as that one.
　　It is as heavy as that one.
　　It is not as heavy as that one.

I am not as tall as you
　 I am taller that you./ You are not as tall as I.
　 I am not so lucky as those fishermen.
　I am less lucky than those fishermen.　　2．little 和few的用法
　　little和 a little 与不可数名词一起使用。 little表示否定，有“几乎一点儿也没有”的含义，在口语中我们常用 not much：
　　a little 表示肯定，具有some的含义：
　　few和 a few 与复数可数名词连用。 few表示否定，与 little 相
　　似，在口语中我们多用not many; a few与a little 相似，有some 的含义：
　　little的比较级为less，few的比较级为fewer：

课后练习答案　　

1．关键句型练习答案
　　A People are not so honest as they once were(1.1); The temptation…is greater than ever before(11.1-2); there were fewer people…than usual (11.4-5); it was easier…to watch her (11.5-6); one of the most expensive dresses (11.7-8); wrapped it… as quickly as possible (11.8-9)
　　2．难点练习答案
　　One day…a postcard…an excursion…one thing…a fax… a form… a fax of one word…
　　3．多项选择题答案
1 c  2 c  3 c  4 b  5 b  6 c　7 a  8 d  9 a  10 d  11 b  12 c