辛达托福代报考位 ：直到2015年11月09日上午托福官网没有释放考位，在此提醒广大考生抓紧时间报名，

注意自己的考试时间，如对托福报名有任何疑问，欢迎咨询在线客服。 

托福阅览的文章通常都很长，细节许多，其中现实细节题能够说是难度较大的标题之一，需求对文章的细节内容有极好的把握。但现实细节题又是托福阅览中所占份额较大的题型，时刻紧、任务重，要如何拿下呢？沪江英语教研讲堂邀请到沪江网校的托福备考名师猫猫教师给咱们分享现实细节题的破题秘诀！

【确定信号词-找到辐射区】

现实细节题主张咱们选用“确定信号词-找到辐射区”的办法来回答现实题，咱们一同来了解一下这种办法：

细节题标题通常都会就文章中的一个名词或许一项现实来发问，该名词或现实即是“signpost word(s)”，即所谓的信号词；托福阅览的标题通常都会对于某一段发问，主张咱们在确认了信号词以后，回到对应阶段，经过“scanning”及扫读的办法，敏捷定位到原文中的信号词处，将信号词上下几句划为辐射区进行研讨，进步做题功率。

【例题练习】

一同来看例题，将这个办法应用到实战中来吧。

标题

1. The period discussed in the passage isreferred to as an “explosion” because it

A occurred 0.6 billion years ago, late inEarth’s history
B was characterized by the unusually fastevolution of many new life-forms
C was characterized by widespread animalextinction
D was characterized by violent volcaniceruptions

标题问的是，文章中评论的这一期间之所以被称为“大迸发”是因为啥。

这篇阅览文章是围绕着“寒武纪生物大迸发”打开内容的。在本标题，explosion即是咱们所说的信号词。

原文中与本题对应的阶段内容如下：

The geologic timescale is marked bysignificant geologic and biological events, including the origin of Earth about4.6 billion years ago, the origin of life about 3.5 billion years ago, theorigin of eukaryotic life-forms (living things that have cells with truenuclei) about 1.5 billion years ago, and the origin of animals about 0.6billion years ago. The last event marks the beginning of the Cambrian period.Animals originated relatively late in the history of Earth – in only the last10 percent of Earth’s history. During a geologically brief 100-million-yearperiod, all modern animal groups (along with other animals that are nowextinct) evolved. This rapid origin and diversification of animals is oftenreferred to as “the Cambrian explosion.”

内容许多，经过扫读，咱们看到explosion这个词出如今阶段最终，咱们将本信号词前的两句话定为辐射区，即：
During a geologically brief100-million-year period, all modern animal groups (along with other animalsthat are now extinct) evolved. This rapid origin and diversification of animalsis often referred to as “the Cambrian explosion.”

解读一下辐射区的意思：

在短暂的一亿年的地质学周期中，一切现代动物群（包含如今现已灭绝的生物）都进化了。
这次疾速的动物来源和动物品种多元化状况发生的期间常常被称为“寒武纪大迸发”。

咱们了解到，这一期间的特征即是动物品种多元化，动物开展的速度快，这也是这一期间被称为“大迸发”的因素。

研讨选项：

A occurred 0.6 billion years ago, late inEarth’s history
A 表明这一期间之所以被称为“大迸发”是因为它发生在六亿年前，是在地球历史的晚期。
本选项不对，是不是被称为“大迸发”，与呈现的期间无关。

B was characterized by the unusually fastevolution of many new life-forms
B 表明这一期间之所以被称为“大迸发”是因为这段期间的特征是许多生命方式以不同寻常的速度进化演化
B准确，它说到了这一期间之所以被称为“大迸发”的两个因素“许多的生命方式”以及“不同寻常的速度”，与原文辐射区相符合。

C was characterized by widespread animalextinction
C 表明这一期间之所以被称为“大迸发”是因为这段期间的特征是许多动物都灭绝了。
C选项过错，动物灭绝和“大迸发”是相悖的。

D was characterized by violent volcaniceruptions
D表明这一期间之所以被称为“大迸发”是因为这段期间的特征是火山迸发的状况很严重。留意：volcanic: 火山的，eruption: 迸发。因而，D也不对，辐射区没有说到火山的疑问，并且它与被称为“大迸发”的因素也不符合。

本题挑选B。

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.

标题问的是，从文章榜首段看，以下哪个选项在描述皮吉特我爱湾白尾鹿的时分表述是准确的？

这篇文章是围绕着皮吉特湾的鹿群打开内容的。在本题中，white-tailed deer即是咱们所说的信号词（短语）。

原文中与本题对应的阶段内容如下：

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.

经过扫读，咱们看到white-tailed deer这个词（短语），将本信号词（短语）后边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多见的，可是如今它们的寓居规模缩小至哥伦比亚河流下流的低地沼地及冲积平原。

从辐射区咱们了解到，白尾鹿曾经的活动规模比如今大得多，如今和曾经的日子区域有所不同。

研讨选项：

A. It is native to lowlands andmarshes.
A表明白尾鹿是在低地及沼地土生土长的。这与辐射区”in earlier times was common in the open prairie country”不符，A过错。

B. It is more closely related to the mule deer of eastern Washington than toother types of deer.
B表明白尾鹿与骡鹿有近亲联系，和辐射区内容无关，且与榜首段中” 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过错。

C. It has replaced the black-tailed deer in the open prairie.
C表明在开阔的草原区域，白尾鹿被黑尾鹿替代了。这个选项是惹是生非的选项。C过错。

D. It no longer lives in a particular type of habitat that it onceoccupied.
D表明白尾鹿如今的寓居地和曾经的寓居地不一样。与辐射区意思相符，挑选D。

重复一下，托福阅览的信息量很大，如果在解现实细节题时把一切信息都吃透再做题，会致使时刻不够，咱们能够选用“确定信号词-找到辐射区”的办法来回答这类题，把需求了解的信息的包围圈缩小，吃透该规模内与信号词相关的细节，有助于咱们敏捷作出准确答案。