07-Too late 为时太晚

单词讲解

• 1、detective n.侦探

detect v.探测

• 2、valuable adj.贵重的

value n.价值

valuable adj.贵重的 （金钱的）
precious adj.珍贵的 （精神上的）

• 3、steal v.偷

steal stole stolen
      过去式 过去分词

• 4、main adj.主要的

the main building 主楼

the main streets/the side streets
 主街/辅街

the main mirror 主镜

the main idea 主要内容、中心思想

• 5、guard n.警戒，守卫

• 6、stone n.石头 可数

• 7、sand n.沙 不可数

课文&语法讲解

1、过去四种时态

0、一般过去时

The plane was late and detectives were waiting... all morning.

was 一般过去时

1、过去进行时

The were expecting a valuable parcel ... from South Africa.

were expecting 过去进行时

a、形式

was/were + doing

b、用法

• 1、过去一个时间段正在进行

She was reading a book at 11:00 last night.
昨天晚上11点她正在读书

We were sleeping at last night.
昨天晚上我们正在睡觉

c、否定疑问

• 1、否定

We were not sleeping at last night.

• 2、疑问

Were you sleeping at last night?

d、补充

• 1、一个事情持续进行，另外一件事打断了

While you were sleeping, a thief sneaked in.
你睡觉时，一个小偷溜了进来。

While I was cooking yesterday, my friend called me.
当我昨天正在做饭的时候，我的朋友打电话给我。

While I was studying English yesterday, my friend knocked at the door.
当我昨天正在学习英语的时候，我的朋友敲了门

2、过去完成时

A few hours earlier, someone had told the police that thieves would try to steal the diamonds.
几个小时前，有人告诉警察小偷会试图偷走钻石

try to steal

try to do sth 努力尽力做某事 （决定比较大）
try doing sth  尝试做某事

a、形式

had done

b、用法

• 过去的过去

Before 8:00 yesterday, she `had finished` her homework.
昨天8点以前，她已经完成了家庭作业。

When he got there, she `had left`.
She was not there.
当他到达那里时，她已经离开了。
她不在那里。

c、补充

过去完成&现在完成时

• 1、相同点

都是从某一个时间点看过去

• 2、不同点

看的时间点不同

• 3、例句

It is 10:00. I `have waited` for 2 hours.
这是10点。我已经等了两个小时了。

现在完成时：
It is 10:00，表示从现在看过去

It was 10:00. I `had waited` for 2 hours.
这是10点。我已经等了两个小时了。

过去完成时：
It was 10:00，表示从过去看过去

过去完成&一般过去时

• 1、例句

The plane was late..., A few hours earlier, someone had told the police...
几个小时前，有人告诉警察……

was late 一般过去时
had told 过去完成时

3、过去将来时

A few hours earlier, someone had told the police that thieves would try to steal the diamonds.
几个小时前，有人告诉警察小偷会试图偷走钻石。

would try 过去将来时

a、形式

would to
was / were going to do

b、用法

• 1、过去的将来

He said that he would go abroad next year.
他说他明年要出国。

I said that I would be a cook in the feature
我说过我将来会成为一名厨师

He said that he would go to class.
他说他要去上课。

4、陈述句变成宾语从句

a、宾语从句

一个句子来作宾语。属于复合句的一种。

• 1、陈述句变宾语从句?

陈述句：
        You are right.
        I think ___________________.

陈述句：
        I think  (that) you are right.

总结：这句子还比较短，如果句子比较长，不容易哪个是主句和从句，所以加了that，作为分隔，that不做成份，也可以省略。

I think that love is the greatest thing in the world
我认为爱是世界最伟大的东西

I know that my teacher will come back tomorrow.
我知道我的老师明天会回来。

5、when、while的区别

When the plane arrived, some of the detectives were waiting inside... while others were waiting on the airfield.
飞机到达时，一些侦探正在里面等着。而其他人则在机场等候。



总结： 
              1、when是万能的
                      
                      While the plane arrived 是不可以的
                      When others were waiting on the airfield 是可以的

              2、使用延续性动词while更专业

              3、While必须接延续性动词，常常是进行时时态

                        While you were sleeping, a thief sneaked in.
                        When you were sleeping, a thief sneaked in.
                        You were sleeping, When a thief sneaked in.

相同点

• 1、当...时候

不相同点

• 1、when 接什么都可以

• 2、while 接延续系动词

延续系
          我吃东西
          我学习英语

不延续系
          飞机到达