【实例解析】找到文章信号词 快速解答事实细节题

2. According to paragraph 1, which of the following is true of the white-tailed deer of Puget Sound?

A. It is native to lowlands and marshes.

B. It is more closely related to the mule deer of eastern Washington than toother types of deer.

C. It has replaced the black-tailed deer in the open prairie.

D. It no longer lives in a particular type of habitat that it onceoccupied.

题目问的是，从文章第一段看，以下哪个选项在描述皮吉特我爱湾白尾鹿的时候表述是正确的?

这篇文章是围绕着皮吉特湾的鹿群展开内容的。在本题中，white-tailed deer就是我们所说的信号词(短语)。

原文中与本题对应的段落内容如下：

Two species of deer have been prevalent inthe Puget Sound area of Washington state in the Pacific Northwest of the UnitedStates. The black-tailed deer, a lowland, west-side cousin of the mule deer ofeastern Washington, is now the most common. The other species, the Columbian white-tailed deer, in earlier times wascommon in the open prairie country, it is now restricted to the low, marshyislands and flood plains along the lower Columbia River.

通过扫读，我们看到white-tailed deer这个词(短语)，将本信号词(短语)后面的三个分句定为辐射区，即：

…white-tailed deer, in earlier times wascommon in the open prairie country, it is now restricted to the low, marshyislands and flood plains along the lower Columbia River.

解读一下辐射区的意思：

白尾鹿早前在开阔的草原是很常见的，但是现在它们的居住范围缩小至哥伦比亚河流下游的低地沼泽及冲积平原。

从辐射区我们了解到，白尾鹿曾经的活动范围比现在大得多，现在和以前的生活地区有所不同。

研究选项：

A. It is native to lowlands andmarshes.

A表示白尾鹿是在低地及沼泽土生土长的。这与辐射区”in earlier times was common in the open prairie country”不符，A错误。

B. It is more closely related to the mule deer of eastern Washington than toother types of deer.

B表示白尾鹿与骡鹿有近亲关系，和辐射区内容无关，且与第一段中” The black-tailed deer, a lowland, west-side cousin of the muledeer of eastern Washington”(黑尾鹿是骡鹿的近亲)相悖，B错误。

C. It has replaced the black-tailed deer in the open prairie.

C表示在开阔的草原地区，白尾鹿被黑尾鹿取代了。这个选项是无中生有的选项。C错误。

D. It no longer lives in a particular type of habitat that it onceoccupied.

D表示白尾鹿现在的居住地和以前的居住地不一样。与辐射区意思相符，选择D。

重复一下，托福阅读的信息量很大，如果在解事实细节题时把所有信息都吃透再做题，会导致时间不够，我们可以采用“锁定信号词-找到辐射区”的方法来解答这类题，把需要理解的信息的包围圈缩小，吃透该范围内与信号词相关的细节，有助于我们迅速作出正确答案。