when表示突然包括将来的be doing和be going to吗

问题描述

知道 be about to 能表示突然XXX。那这句呢？

He was leaving / be going to leave when it began to snow.

这句能不能说突然下雪，还是说在开始下雪时离开呢？？？

此外能不能说 Yesterday, he was going to leave?

老师答疑

曾老师：

问题一：

He was leaving / be going to leave when it began to snow. 应译为“他正要离开，这时开始下雪了”。

这里的when是并列连词，用来构成并列句，意义为“就在这时；突然”，相当于and (just, but) then; and suddenly, and just at that moment/time。when常可加副词suddenly以强调其后并列分句动作的突然性，带有一种使人意想不到的含义。此外，这时的when所连接的并列分句是不能位于句首的。又如：

We were just coming to that point when the bugle sounded. 我们正要谈到这一点时，下课号响了。《现代英语惯用法词典》

▲while也可以用作并列连词，表示转折或对比，意为“而、然而、但是”。如：

I like football, while my sister likes basketball.  我喜欢足球，而我姐姐喜欢篮球。

问题二：

Yesterday, he was going to leave. 是对的，译为：“昨天，他打算离开。”

陈老师：

回答如下：

以上用法属于when充当对等并列连词用法,意思“正在这个时候，正当这时”常用表达结构如下

(1) sb be doing sth when sb/sth did sth

中文：某人正在做某事这时候某人/某事做了某事

I was doing my homework when the telephone rang.

(2)sb be about to do sth when sb/sth did sth.

中文：某人正要去做某事这时某人/某物

I was about to go out when it rained

(3) sb be on the point of doing sth when sb/sth did sth

某人正要做某事这是...

I was on the point of having a good rest when the telephone rang.

(4) sb had done sth when sb/sth did sth

某人刚做完某事这时..

I had just finished my homework when it rained heavily

(5)sb be busy doing sth when sb/sth did sth

某人正忙于做某事这时...

I was busy writing my composition when Tom came to visit me.

(6)sb had not done sth when sb/sth did sth

某人还没有做完某事这时

I had not finished my work when he asked me to go out with him

(7) sb be on the way to when sb/sth did sth

某人正在去往....这时.

I was on my way to the station when someone asked me take him to there.