（2）那是医生第四次劝他戒烟。

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辨析：

It is (high/about) time that sb did/should do sth.是某人该干......的时候了

It is high time that you should prepare/ prepared for the coming exams.

1. While walking the dog, you were careless and it got loose and was hit by a car.

　　遛狗时，你太粗心，狗松扣了而被车撞了。

　　While walking the dog = while you were walking the dog在时间、条件、让步状语从句中，如果主句的主语和从句的主语相同，而且从句中的谓语动词又含有be的某种形式，从句中的主语和be可以省略。

　　When I was traveling in Beijing (=when traveling in Beijing), I happened to meet a former classmate.

　　Though he is over sixty(= though over sixty), he still keeps on studying English.

She won't go to the conference unless she is invited(= unless invited).

2. Why do you think people all over the world want to learn English?

　　你认为为什么世界各地的人们都想学习英语呢？

　　本句为双重疑问名句，do you think在句中做插入语

　　注意：

　　一般疑问句用疑问语序( do you think)

　　特殊疑问句疑问词置于句首，并用陈述语序；

　　可用于该句型的动词还有believe, guess, imagine, ,suppose等

　　Who do you suppose is the right person for the job?

　　How many students do you guess have been to the Great Wall?

翻译：

（1）他还没有来，你认为他怎么了？

He hadn't turned up yet. __________ ____________ ________ has happened to him?

（2）你认为他们会如何处理这个问题？

How do you suppose _____ ________ ________ _________ the problem?

3. Believe it or not, there is no such thing as standard English.

　　信不信由你，（世界上）没有什么标准英语。

　　（1）believe it or not在句中做插入语，意为"信不信由你；我说的是真的"。

　　常见的插入语有：

　　generally speaking一般来说 frankly speaking坦白地说

　　judging from从......来判断 to tell you the truth说真的；老实说

　　to be honest说实在的 to make matters worse更糟糕的是

　　（2）such的用法小结

　　no such...as没有这样的......

　　such as例如

　　such...as...像......这样的......

　　such ...that...这样......以致于......

　　He is reading such a book as you borrowed from the library last week.

他在读的书和你上周从图书馆借来的一样。（ as是关系代词，引导定语从句）