Sentence Patterns: 以 ．．．为前提 make .. as the prerequisite, presuppose 一个社会的繁荣昌盛是以丰衣足食为前提的。 The prosperity and flourishing of a society presupposes that its people be well-fed and well-clothed. 1、 把外语学好是以努力学习为前提的。 The prerequisite of mastering a foreign language is to study hard. 2、 身体健康是以吃好饭为前提的。 Good health presupposes being well-fed. 以．．．为主 give first place to, give priority to 以热食、熟食为主，是中国人饮食习俗的一大特点。 An important characteristic of Chinese eating customs is to give priority to hot and cooked food. 1. 我白天的活动以工作为主。 I mostly work during the day. 2. 美国人的食物以肉类为主。 American food is made primarily of meat. 令．．． make, cause 烹调技术的高超，令人惊叹。 The superb culinary technique make people exclaim. 1. 珍妮中文说得非常好，令她的同学十分羡慕。 Jane speaks very good Chinese. It makes her classmates envy her a lot. 2. 他写的中国字很漂亮，令人称赞。 His beautiful Chinese handwriting makes people acclaim. 被称作 be called 这种方式被称作聚食制。 This way of eating food is called eat-together system. 1. 在北京，外国人被称作“老外”。 In Beijing, foreigners are called "laowai". 2. 在我家里，最小的孩子被称作“老小”。 In our family, the youngest child is called "laoxiao". 以．．．闻名 be well known for 四川菜以麻、辣闻名。 Sichuan food is well known for being tingling spicy. 1. 中国以历史悠久闻名。 China is well known for its long history. 2. 美国人以思想开放闻名。 Americans are well know for their openness of mind. 以．．．见长 be good at, be expert in 广东菜以海味见长。 Guangdong food is good at seafood. 1. 李先生以文章写得好见长。 Mr. Li is good at writing nice articles. 2. 小马以烧菜见长。 Xiao Ma is an expert in cooking.