1. If, at the time, the British had not feared invasion, it would have been completed.
参考翻译：如果不是那时英国人害怕他国的入侵，隧道早就完工了。
知识点：典型的与过去事实相反的虚拟条件句。
真题测验：词义辨析
A lot of ants are always invading my kitchen. They are a thorough（ ）．
A. nuisance B. trouble C. worry D. anxiety
答案：选A
分析：nuisance表示让人讨厌的东西、行为或人，符合句意。
翻译：我的厨房里总是有许多蚂蚁进来，它们是非常令人讨厌的东西。
2. This platform would serve as a port and a railway station.
这座平台将用作码头和火车站。
知识点：serve as... 充当……
3. It was officially opened on March 7，1994，finally connecting Britain to the European continent.
它于1994年3月7日正式开通，将英国与欧洲大陆连到了一起。
知识点：finally connecting…部分全部是状语。
