Cooked in wine, snails are a great luxury in various parts of the world. There are countless people who, ever since their early years, have learned to associate snails with food. My friend, Robert, lives in a country where snails are despised.

　　7.Cooked in wine, snails are a great luxury in various parts of the world.

　　蜗牛加酒烧煮后，便成了世界上许多地方的一道珍奇的名菜。

　　语言点1:句子结构分析:cooked in wine为过去分词短语，作条件状语，交代“用酒来煮蜗牛”这个先决条件。

　　语言点2:various表示“多种多样的”。除此之外，以下这些词也可以表达同样的意思:diverse，manifold，multifold,multiplex,multiplicate

　　8. There are countless people who, ever since their early years, have learned to associate snails with food.

　　有不计其数的人们从小就知道蜗牛可做菜。

　　语言点:句子结构分析:who引导定语从句，修饰people，说明是什么样的人。Ever since their early years作插入语，放在这个位置有特殊的意义，即平衡句子结构和衔接上下文。

　　9. My friend, Robert, lives in a country where snails are despised.

　　但我的朋友罗伯特却住在一个厌恶蜗牛的国家中。

　　语言点:句子结构分析:Robert是my friend的同位语，起解释说明的作用。Where引导定语从句，修饰country。