托福阅读共有十种题型，其中某些题型出现频率较高，如细节题、句子简化题和句子插入题等，这些题型需要花费较多的时间去准备，那么作为常考题型之一，作者目的题该怎么做?接下来就跟小编一起来看看吧!
作者目的题也叫做修辞目的题，但其实在TPO中它的范围更广，除了举例说明概述题外，还有类似段落关系方面的题目。作者目的题，顾名思义此题型首先考察的就是考生是否可以准确的进行换位思考，了解作者的意图。
我们将作者目的进行了归类，这就包括：提供信息 (inform)，下定义 (define)，解释 (explain)，例证 (illustrate)，比较 (compare)，对比 (contrast)，批评 (criticize) 等。下面我们就对此题型的常见出题方法进行解析：
作者目的题常见的出题形式如下
1. Why does the author mention/include/use…?
2. The author… in order to…
3. The author uses the example to…?
4. …for… purpose?
这种题目一般问的是作者举某个例子，说某句话的目的是什么且在考试时一般题目中的例子会标黑以方便考生寻找(也有不标注的情况)。一般来讲，托福阅读的文章框架相对清晰，作者在举例子时一定是为了说明自己的观点。所以，对于考生来说需要先找到例子的所在句，然后往前阅读找到例子支撑的观点句即可。如：
The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country. The early explorers and settlers told of abundant deer in the early 1800s and yet almost in the same breath bemoaned the lack of this succulent game animal. Famous explorers of the North American frontier, Lewis and Clarkarrived at the mouth of the Columbia River on November 14,1805 , in nearly starved circumstances. They had experienced great difficulty finding game west of the Rockies and not until the second of December did they kill their first elk. To keep 40 people alive that winter, they consumed approximately 150 elk and 20 deer.
The author tells the story of the explorers Lewis and Clark in paragraph 3 in order to illustrate which of the following points?
A. The number of deer within the Puget Sound region has varied over time.
B. Most of the explorers who came to the Puget Sound area were primarily interested in hunting game.
C. There was more game for hunting in the East of the United States than in the West.
D. Individual explorers were not as successful at locating games as were the trading companies.
解析
根据较容易定位的人名到段落第三句 “Famous explorers of the North American frontier, Lewis and Clark had experienced great difficulty finding game west of the Rockies and not until the second of December did they kill their first elk.” 意思是：北美边境有名的探险者，Lewis 和Clark 在落基山西边很难找到捕猎动物并且直到十二月二号才捕到只鹿。
这是一个例子，所以我们就往前阅读看段落首句——段首句往往是段落中的重中之重。“The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country.” 意思是：鹿的数量自从欧洲人进入Puget Sound 地区后就发生了显著的波动。所以明显的这句话才是例子要支持的观点，显而易见我们可以得出选项A 是正确答案。
第二种类型是观点和例子结合成了一句话，如：
The astrolabe had long been the primary instrument for navigation, having been introduced in the eleventh century. It operated by measuring the height of the Sun and the fixed stars: by calculating the angles created by these points, it determined the degree of latitude at which one stood (The problem of determining longitude, though, was not solved until the eighteenth century.) By the early thirteenth century, Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars. Also beginning in the thirteenth century, there were new maps refined by precise calculations and the reports of sailors that made it possible to trace one's path with reasonable accuracy. Certain institutional and practical norms had become established as well. A maritime code known as the Consulate of the Sea, which originated in the western Mediterranean region in the fourteenth century, won acceptance by a majority of sea goers as the normative code for maritime conduct; it defined such matters as the authority of a ship's officers, protocols of command, pay structures, the rights of sailors, and the rules of engagement when ships met one another on the sea-lanes. Thus by about 1400, the key elements were in place to enable Europe to begin its seaward adventure.
Why does the author include the information that Western Europeans had developed and put into use the magnetic compass?
A. To provide an example of an instrument that was developed after caravels had begun traveling across oceans.
B. To provide an example of an improvement that resulted directly from the invention of the astrolabe.
C. To identify one of the technological advances that made sea trade with the East possible.
D. To explain how the problem of determining longitude was solved.
解析
根据问题中的关键词 magnetic compass 可以定位到文章的第五行，但是由于句中的also，可知磁针罗盘和星盘是并列关系，即两者都是重要的航海定位工具，所以C 选项是正确答案。此题即例子和观点合成一句话。
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