本文介绍了加拿大、美国和新加坡这三个在双语教学中取得成功的典型案例。加拿大的侵入式双语教学,美国的四种双语教学计划:英语作为第二语言;双语速成;双语保持和双向双语,新加坡的因材施教和阶段分流法都值得我们学习借鉴。本文还为我们指出了这些国家双语教学取得成功的主要原因。 This article presents three typical cases of successful bilingual education in Canada, the United States and Singapore. Invaded bilingual education in Canada and four bilingual education programs in the United States: English as a second language, bilingualism, bilingualism and bilingualism. Singapore’s individualized teaching and stage diversion are all worth learning from. This article also shows us the main reasons for the success of bilingual education in these countries.