新概念英语第二册52课句子知识点
Lesson 7
Too late
为时太晚
课文详注 Further notes on the text
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。
that后面的部分为动词tell的宾语从句。从句中的时态为过去将来时（would）。
3．When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield.
当飞机到达时，一些侦探等候在主楼内，另一些侦探则守候在停机坪上。
（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。
（3）代词others常常和some连用，表示“有些（人）……，也有些（人）……”或者“有的……，其余的……”：
Some students are very hard-working; others are not.
有些学生非常用功；有些则不然。
Some of the novels are interesting; (the) others are not.
在这些小说中，有些很有趣，其他的则不然。
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.
两个小偷在屋子外面守着，其他的则进了屋。
They kept a close guard over the thieves.
他们对小偷们严加看管。
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.
语法 Grammar in use
1．过去进行时(The past progressive tense)
构成：be的过去式+现在分词（注意现在分词的构成）
（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.
我扫地的时候，发现了你的钢笔。
while通常只引导持续时间较长的动作，并且主句和从句可以同时用过去进行时，而when和as一般不这么用：
John was watching TV while his wife was talking with a neighbour over the phone.
当他的妻子和一位邻居在电话中聊天时，约翰一直在看电视。
Some students were dancing and singing while others were eating and drinking.
有些学生在唱歌跳舞，而另一些则在吃喝。
Just as I was opening the front door, the telephone rang.
我正开前门的时候，电话铃响了。
Just as I was leaving the house, you came in.
你进来的时候我正要出门。
when也可以引导比较短暂的动作，while和as则一般不行：
We were having supper when the lights went out.
我们正在吃晚饭时灯灭了。
（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.
整整两天他们一直在为晚会进行准备。
2．短语动词中的小品词(The particles)
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.
我在找蒂姆。（for为介词，位置不能变动）
She looked after the baby.
她照顾那孩子。（after为介词）
He put the fire/ it out.
他灭了火。（out为副词）
Mother woke the children/ them up.
母亲把孩子们叫醒了。（up为副词）
She took the picture/ it down.
她把画取了下来。（down为副词）
Please turn the radio/ it off.
请把收音机关掉。（off为副词）
He turned it on.
约翰打开了电视。（on为副词）
Put the cake on the table.
把蛋糕放在桌上。（on为介词）
She is walking up the hill.
她正向山上走去。（up为介词）
词汇学习 Word study
1．expect
（1）vt., vi. 预计，预料：
We expect a cold winter this year.
我们预计今年冬天会冷。
Jim has failed in mathematics as his teacher expected.
正如他老师所预料的那样，吉姆数学考试没及格。
（2）vt. 等待，期待，盼望：
I'm expecting a letter from Jimmy.
我在等待吉米的一封信。
They are expecting guests tonight.
今晚有人要去他们那里作客。
expect所表示的等待一般暗含着根据某些信息或规律而作出相应反应的意思，而wait(for)主要指“等待”这个动作本身：
He waited for her for more than an hour, but she did not come.
他等了她一个多小时，但她没来。
Wait a minute, please.
请等一下。
（3）vt. 认为，猜想（一般用于口语）：
I expect you've heard the news.
我想你已经听到这个消息了。
2．steal
（1）vt. vi. 偷盗，行窃：
Someone has stolen my bike.
有人把我的自行车偷走了。
John never steals.
约翰从不偷东西。
（2）vt. 巧妙地占有，偷偷地弄到手：
He has stolen away Mary's heart.
他已赢得玛丽的芳心。
（3）vi. 偷偷地行动，悄悄靠近：
He stole into the room.
他悄悄地进了房间。
练习答案 Key to written exercises
1．关键句型练习答案
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
6 dropped…spoke
2．难点练习答案
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.
3．多项选择题答案
1 b 2 c 3 c 4 d 5 a 6 c
7 d 8 a 9 c 10 b 11a 12 b
第一个句子是：过去进行时的被动语态 （主要看was being tested ） 第二个句子是过去完成时被动语态（主要看had been asked） 第三个句子是用完成进行时做原因状语（having being instructed） 是一个过去时
Lesson 52 A pretty carpetWhat has happened? What has been happening?现在完成时和现在完成进行时
在第4课、第28课的语法中，我们学习了现在完成时的用法以及经常与它连用的时间副词（或短语）、介词等。现在完成进行时由have been+现在分词构成，强调动作在某一段时间内一直在进行，而且动作现在有结果。到现在为止，该动作可能已不再继续进行，也可能还在继续进行，这要根据上下文来确定。句子中常含有all+表示时间的词语如all day, all morning等或for和since。一般说来，现在完成表示已完成的动作，现在完成进行时则可表示尚未完成的动作。有些动词，如learn, lie, live, rain, sit, sleep, stand, study, wait, work等本身就有持续性，现在完成时形式与现在完成进行时形式可以互换，惟一的区别是后者更强调动作的持续性！
Compare these pairs of sentences:
比较以下各对句子：
It hasn't rained for six weeks.已经6个星期没有下雨了。
It has been raining hard since yesterday and it is still raining.昨天以来一直下雨，而且现在还在下着。
He has rung me up five times since 12 o'clock.从12点以来他已经给我打了5次电话。
He has been ringing me up all morning. 整个上午他一直在给我打电话。
He has never stayed at this hotel before.他从未在这家酒店住过。
He has been staying at this hotel for the last three weeks. 过去的3个星期他一直住在这家酒店。
I have read‘Oliver Twist’five times.《雾都孤儿》我已读了5遍。
I have been reading all afternoon.整个下午我一直在看书。
What has happened? What has been happening? Give the correct form of the verbs in parentheses:
用括号中动词的正确形式填空：
‘I______(explain)this to you several times already, ’said the teacher. ‘I hope you______(understand) it now.’Then he looked at a little boy at the back of the class.‘______ you______(listen), Jones?’he asked.‘Here is a simple Problem:“Sally_______(work) in an office for thirty－four weeks. In that time, she______(earn)￡300 a week. How much_______ she_______(earn) so far?”’
‘Please, sir,’Jones answered, ‘I can only answer your first question. I___(not listen).
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