常见的转折关键词有：believe,argue,contend, Claim,theorize,assert,view, announce,etc.
下面分小点点给同学们具体讲。
Believe
例：
在申友第5版讲义第17篇，p148文章首句，就以believe引出了观点。 Many people believe that because wages are lower in developing countries than in developed countries, competition from developing countries in goods traded internationally will soon eliminate large numbers of jobs in developed countries.
那么这个believed的内容就是文章之后进行evaluate的前提。
View
例：
The view has prevailed for the better part of the twentieth century that small firms do not perform an important role in Western economies.
这个观点就是之后文章举出反证反驳的观点。
Argue
例：
Thus, an alternative view has emerged in the economics, arguing that small firms make several important contributions to industrial markets.
这里的arguing就是引出代替性观点，引出新观点的观点标志词。
Contend
例：
The Black Death, a severe epidemic that ravaged fourteenth-century Europe, has intrigued scholars ever since Francis Gasquet's 1893 study contending that this epidemic greatly intensified the political and religious upheaval that ended the Middle Ages.
这里的contending就是scholars观点出现的标志。
Claim
例：
In the 1930s, however, Evgeny Kosminsky and other Marxist historians claimed the epidemic was merely an ancillary factor contributing to a general agrarian crisis stemming primarily from the inevitable decay of European feudalism.
提出另一派观点。
Assert
例：
同样第12篇， In arguing that this decline of feudalism was economically determined, the Marxist asserted that the Black Death was a relatively insignificant factor.
Theorize
例：
Many scholars have theorized that economic development, particularly industrialization and urbanization, con-tributes to the growth of participatory democracy.
Theorize的内容即使后面的反对基础。
Announce
例：
Two years later, the McKay team announced that ALH84001, which scientists generally agree originated on Mars, contained compelling evidence that life once existed on Mars.
这里announce的内容就是文章后面怀疑派怀疑的内容。
对以上这些引出观点的词了解并熟练的运用以后，就可以快速的辨别出文章的观点，加快处理文章的速度和准确度了，其实这些词并不难发现，关键是同学们在平时做题的时候要学会去总结，找到规律以后，进步会更快哦~