时态一直是英语语法中的一大难点，中小学段需要学习的有10种时态。为了帮助大家更好地掌握这10种时态，我们即将推出线上直播课，让大家宅在家里也能学好英语。详情请点击下面的文章链接了解：
线上直播：15小时轻松掌握中小学英语10大时态
每课一句： 新概念第2册第82课
今天我们接着来看第83课的“每课一句”。
一、课文原文
Lesson 83 After the elections
The former Prime Minister, Mr. Wentworth Lane, was defeated in the recent elections. He is now retiring from political life and has gone abroad. My friend, Patrick, has always been a fanatical opponent of Mr. Lane's Radical Progressive Party. After the elections, Patrick went to the former Prime Minister's house. When he asked if Mr. Lane lived there, the policeman on duty told him that since his defeat, the ex-Prime Minister had gone abroad. On the following day, Patrick went to the house again. The same policeman was just walking slowly past the entrance, when Patrick asked the same question. Though a little suspicious this time, the policeman gave him the same answer. The day after, Patrick went to the house once more and asked exactly the same question. This time, the policeman lost his temper. 'I told you yesterday and the day before yesterday,' he shouted, 'Mr. Lane was defeated in the elections. He has retired from political life and gone to live abroad!' 'I know,' answered Patrick, 'but I love to hear you say it!'
——选自《新概念英语》第二册，外语教学与研究出版社，1997年10月第1版
二、每课一句
The same policeman was just walking slowly past the entrance, when Patrick asked the same question.
注意这句话在结构上的安排：句中的when所引导的从句被置于句末可以起到一举两得的作用。
一方面，根据写作中的尾重原理，一个句子的句末是最具强调效果的，所以when从句因此得到更好的强调，使得读者的注意力落在了Patrick问了警察同样的问题上。
另一方面，因为这么安排，使得本句话在结构上与文中的下一句话在结构上形成了呼应：
Though a little suspicious this time, the policeman gave him the same answer.
Though a little suspicious this time, the policeman gave him the same answer.
即前一句话句末的Patrick asked the same question与后一句话句末的the policeman gave him the same answer，在句子结构和逻辑含义上前后做到了很好的呼应，从而烘托出了Patrick反复问同一个问题而警察又给出同一个答复的戏剧效果。
三、更多拓展
When he asked if Mr. Lane lived there, the policeman on duty told him that since his defeat, the ex-Prime Minister had gone abroad.
注意这个句子结构相对复杂：
1、when引导的是时间状语从句；
2、if又是when从句中所包含的宾语从句；
3、that引导的是宾语从句，用作主句动词told的宾语；
4、since后接his defeat，用作that从句中的时间状语。
1、when引导的是时间状语从句；
2、if又是when从句中所包含的宾语从句；
3、that引导的是宾语从句，用作主句动词told的宾语；
4、since后接his defeat，用作that从句中的时间状语。
所以，整句话的实际主要成分是：
When ..., the policeman on duty told him that ... the ex-Prime Minister had gone abroad.
When ..., the policeman on duty told him that ... the ex-Prime Minister had gone abroad.
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