1.How do you do?您好。

　　这是用于第一次见面时的较正式用语。一般用同样的话来回答。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。

　　这是介绍人们彼此认识时的常用句型。请参见 Lessons 5-6课文详注。

　　4.名词的复数形式(2)

　　如果名词单数词尾为-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 引导的特殊疑问句

　　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。

　　注意这种句型与 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。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

　　所有格形容词their 意为“他们的”，其对应的人称代词是they。请参见Lessons 11～12语法部分。

　　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奇怪。

　　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?

　　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.

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