商务英语阅读上册第二版配套教材电子课件（完整版）.pptx

商务英语阅读上册第二版;Business English Reading Courseware;Chapter 1;单元教学目的;本章阅读技巧提示; 当不能直接找出主题句时，通常文章中给予叙述较多或强调较多的某一事物或某一观点即文章的中心。在题目作答时，可采用中心词定位法，排除不含中心词的选项，对比有中心词的选项，选择最接近中心的选项。如果对选项仍有异议，可把有异议的选项逐个带入文章中，看哪个能更好的囊括文章中心。; 应该在做每篇文章的题目之前先用5分钟左右的时间迅速的将文章进行跳跃性阅读，把握文章的整体结构和各段大意，为做题奠定定位的基础。而解段落大意题的过程其实就是变相的做了快速跳跃性阅读的步骤，通过解题掌握了文章结构和段落大意，之后再做其它细节题，往往会有“会当凌绝顶，一览众山小”的感觉。; 如果一篇文章既有主旨题又有细节题，那么考生不妨先做主旨题即段落大意题，这样可以为解细节题奠定坚实的基础。所以，提高解段落大意题的能力对于提高阅读的综合解题能力有着极为重要的指导作用。;Step One; International trade is the exchange of goods and services across international boundaries or territories. In most countries, it represents a significant share of GDP. While international trade has been present throughout much of history (see Silk Road, Amber Road), its economic, social, and political importance has been on the rise in recent centuries. Industrialization, advanced transportation, globalization, multinational corporations, and outsourcing are all having a major impact. Increasing international trade is the primary meaning of globalization. ; International trade is also a branch of economics, which, together with international finance, forms the larger branch of international economics. Several different models have been proposed to predict patterns of trade and to analyze the effects of trade policies such as tariffs. The Ricardian model focuses on comparative advantage and is perhaps the most important concept in international trade theory. In a Ricardian model, countries specialize in producing what they produce best. ; Unlike other models, the Ricardian framework predicts that countries will fully specialize instead of producing a broad array of goods. Also, the Ricardian model does not directly consider factor endowments, such as the relative amounts of labor and capital within a country. The Heckscher-Ohlin model was produced as an alternative to the Ricardian model of basic comparative advantage. Despite its greater complexity it did not prove much more accurate in