课文详注 Further notes on the text
1．How do you do？您好。
这是用于第一次见面时的较正式用语。一般用同样的话往返答。请参见 Lessons 5～6课文详注。
2．Come and meet our employees…来见见我们的雇员……
这里的and表示目的。请参见 Lessons 13～14中语法部分的解释。
3．This is Nicola Grey，and this is Claire Taylor．这位是尼古拉·格雷，这位是克莱尔·泰勒。
这是介绍人们彼此熟悉时的常用句型。请参见 Lessons 5～6课文详注。
4．名词的复数形式（2）
假如名词单数词尾为-f或-fe（读作／f／），则其复数一律变为-ves （读作／vz／），即将-f或-fe变成-v，再加-es而成，如 housewife----housewives。
英语中有一些名词的复数形式是不规则的，如man与woman其复数形式分别为men与women。此外还可用man，woman等来区别阳性与阴性：以-man结尾的一些复合名词指男性，如milkman---- milkmen，policeman ---- policemen；一些以-woman结尾的名词指女性，如postwoman---- postwomen，policewoman ---- policewomen。
5．数字200，1，000，1，001的英文写法
200 ---- two hundred
1，000 ---- a（或 one） thousand
1，001 ---- a thousand and one
语法 Grammar in use
1．who 引导的非凡疑问句
Who is…？或 Who are…？这类以疑问词 who引导的疑问句通常用来询问人的姓名和身份。Who…？仅指人，可以用来询问男性、女性、单数或复数的人。如：
注重这种句型与 What is…？或 What are…？这类句型的区别：What…？句型主要用来询问人的类别或职业，如：
请参见 Lessons 5～6与 Lessons 7～8语法部分的解释。
2．所有格形容词与人称代词
（请参见Lessons 11～12语法部分。）
所有格形容词their 意为“他们的”，其对应的人称代词是they。下面是人称代词及其对应的所有格形容词形式：
练习答案 Key to written exercises
Lesson 18
A
1 That man is tall. He is a policeman.
2 Those girls are busy. They are keyboard operators.
3 Our names are Britt and Inge. We are Swedish.
4 Look at our office assistant. He is very hard-working.
5 Look at Nicola. She is very pretty.
6 Michael Baker and Jeremy Short are employees. They are sales reps.
B
1 Are they keyboard operators or air hostesses?
They aren't keyboard operators. They're air hostesses.
2 Are they postmen or policemen?
They aren't postmen. They're policemen.
3 Are they policewomen or nurses?
They aren't policewomen. They're nurses.
4 Are they customs officers or hairdressers?
They aren't customs officers. They're hairdressers.
5 Are they hairdressers or teachers?
They aren't hairdressers. They're teachers.
6 Are they engineers or taxi drivers?
They aren't engineers. They're taxi drivers.
7 Are they policewomen or keyboard operators?
They aren't policewomen. They're keyboard operators.
8 Are they milkmen or engineers?
They aren't milkmen. They're engineers.
9 Are they policemen or milkmen?
They aren't policemen. They're milkmen.
10 Are they nurses or housewives?
They aren't nurses. They're housewives.
词汇学习 Word study
1．custom n.
风俗；习惯；
When visiting a foreign country, we might find the country's customs strange to us.
当我们去外国访问时，我们也许会发现该国的某些风俗习
惯有些希奇。
It is his custom to go for a walk in the evenings.
他惯常在晚上出去散步。
2．customs, Customs n.
[复]海关；征收关税的程序：
The spy was stopped at the Customs and questioned.
那个间谍在海关被截住并被加以盘问。
How long will it usually take to pass the Customs?
通过海关检查通常要花费多少时间？
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