今天的翻译题是：
1.The police warned citizens against keeping a large sum of cash at home ____________(以防被盗).
2._____________(当谈及代购问题)，all students are eager to say something about their experience.
答案解析:
1.答案:lest it (should) be stolen//in case it (should)/will be stolen
详解:
考查目的状语从句:lest意思是“以防，以免”，其引导的从句通常用sb.(should)do 的形式表示虚拟，句中指“钱财被盗”，用被动语态。In case “以防”也可以引导目的状语从句，但从句的谓语可用虚拟语气，也可用直陈语气。
考查代词it:从句中的“以防被盗”指cash,为了避免重复，用it指代。
2.答案:When it comes to generation gap//When talking about generation gap
详解:
考查“当谈及…”这一常考固定结构:when it comes to+sb./sth或者when talking about +sb./sth.。
考查名词短语“代沟”的表达:generation gap。