As earth-shaking and headline-grabbing as the most recent financial crisis was,it was only one of a number of financial crises that have hit industrialized countries like the United States over the years.These experiences have helped economists uncover insights into present-day economic turmoil.Financial crises in advanced economies have progressed in two and sometimes three stages.To understand how these crises have unfolded,refer to Figure 8.1,which traces the stages and sequence of financial crises in advanced economies.
展示了本篇essay写作是如何连接上下文的，这是Essay写作中常见的难题，有效而流畅的连接上下文在帮助读者阅读的同时也促使自己按照逻辑顺序安排内容，实现清晰明了的表达文章主旨的目的。
常用的连接上下文的方式有以下四种：
1.重复前文中提到的内容，例如：
Throughout our discussion of how financial markets work,you may have noticed that the subject of expectations keeps cropping up.
2.使用代词，例如：
PLA is a polymer obtained from corn and is produced by the polymerization of lactide.It has many possible uses in the biomedical field and it has been investigated as a potential engineering material.
3.使用介词引导从句来连接上下文，例如.
Bidirectional causality between economic growth and exports plus imports,which is consistent with China’s development strategy of protected export promotion.
4.具有逻辑关系的关联词
Therefore/however是最常见的逻辑连接词，例如：
The study confirms that there is a positive relationship between exports and economic growth.However,the relationship is significant only for the period 1980-1990.
其他常见的逻辑关联词还有：
原因：
due to(the fact that)as
on account of(the fact that)since
以上所有的连接词都可以用在句首，但在使用since时要注意其还有“自从…”的意思。
结果：
Therefore as a result(of which)
consequently hence
对比/差异：
however on the other hand
whereas然而，但是while
On the contrary和conversely表达的是“完全相反的是…”，并非对比/差异的意思。
使用while时要注意while也可以表示为“与此同时…”用以引导从句。
未曾预料/转折：
although despite nevertheless
even though in spite of however
增加/除此之外：
in addition also
moreover Apart from |
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