The plane was late and detectives were waiting at the airport all morning. They were expecting a valuable parcel of diamonds from South Africa. A few hours earlier, someone had told the police that thieves would try to steal the diamonds. When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield. Two men took the parcel off the plane and carried it into the Customs House. While two detectives were keeping guard at the door, two others opened the parcel. To their surprise, the precious parcel was full of stones and sand!
1．…detectives were waiting at the airport all morning. ……侦探们在机场等了整整一上午。
all 一般直接加表示时间的单数名词构成副同短语，如：all day （整整一天），all night（整夜），all week（整星期），all winter（整个冬天），all year（整年）等。但不说all hour。
whole在表达同样的意思时一般要加冠词或数词，如：a whole day/ year（一整天／年），two whole weeks（整整两星期）。
2．…someone had told the police that thieves would try to steal the diamonds. ……有人向警方报告，说有人企图偷走这些钻石。
3．When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield.
（1）这个长句子由3个部分组成：when引导的是整个句子的时间状语从句；some of…building为主句；while 引导的是动作与主句的动作同时进行的时间状语从句。while作为连词表示“和……同时”、“当……时候”时常常引导一个过去进行时从句。（cf. 本课语法）
（2）地点状语 on the airfield 与第一句中的 at the airport 意义相近。注意介词on和at的不同搭配。
Some students are very hard-working; others are not.
Some of the novels are interesting; (the) others are not.
4．keep guard, 守望，警戒，与 stand guard（站岗，放哨）意思相近。
Two thieves kept guard around the house while the others entered it.
They kept a close guard over the thieves.
5．to their surprise, 令他们吃惊的是。
这个短语中的所有格形容词their也可以换成其他所有格形容词：(much) to my/ his surprise, to our surprise 等。一般不说 to your surprise.
（1）vt., vi. 预计，预料：
We expect a cold winter this year.
Jim has failed in mathematics as his teacher expected.
I'm expecting a letter from Jimmy.
They are expecting guests tonight.
He waited for her for more than an hour, but she did not come.
Wait a minute, please.
I expect you've heard the news.
（1）vt. vi. 偷盗，行窃：
Someone has stolen my bike.
John never steals.
He has stolen away Mary's heart.
He stole into the room.
1．过去进行时(The past progressive tense)
（1）过去进行时主要表示过去某个时刻或某段时间正在进行的动作。过去进行时和一般过去时经常同在一个句子里使用。过去进行时表示过去正在进行的动作或情况，一般过去时则表示比较短暂的动作或事件。正在进行中的动作或情况往往由连词 when, while, as, just as等引导：
While/ When/ As I was sweeping the floor, I found your pen.
John was watching TV while his wife was talking with a neighbour over the phone.
Some students were dancing and singing while others were eating and drinking.
Just as I was opening the front door, the telephone rang.
Just as I was leaving the house, you came in.
We were having supper when the lights went out.
（2）过去进行时往往与表示一段时间的状语连用，如all morning, all night, all day, all evening, the whole week等，表示这段时间一直在干什么：
They were preparing for the party for two whole days.
在上一课的语法中已经提到，许多动词加上介词或副词后就会改变词义。这些介词和副词通常被称为小品词。它们没有词形变化。有些小品词既可以作介词又可以作副词。判断一个小品词是副词还是介词要看小品词有没有带宾语。有宾语的是介词，没有宾语的是副词。介词的位置相对固定些：I am looking for Tim.
She looked after the baby.
He put the fire/ it out.
Mother woke the children/ them up.
She took the picture/ it down.
Please turn the radio/ it off.
He turned it on.
Put the cake on the table.
She is walking up the hill.
A detectives were waiting(1.1); They were expecting(1.2);
detectives were waiting(1.5); others were waiting(1.6);two detectives were keeping guard(11.7-8)
B 1 When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield.
2 When two of the detectives opened the parcel, two others were keeping guard at the door.
C (sample answers)
1 I was getting into my bath when you telephoned me.
2 I was reading Hamlet when you saw me in the library this morning.
3 I was saying that you must see the new film when you interruped me.
D 1 was leaving…arrived 2 worked/ was working…was sitting/ sat3 was walking…met
4 was reading…heard
5 was preparing…set/ was setting
1 He gave all his books away.
2 She woke the children up early this morning.
4 They cut the king's head off.
5 Put your hat and coat on.
7 Help me to lift this table up.
8 Take your shoes off and put your slippers on.
11 They have pulled the old building down.12 Make your mind up.
14 She threw all those old newspapers away.
1 b 2 c 3 c 4 d 5 a 6 c
7 d 8 a 9 c 10 b 11a 12 b