托福阅读插入句子题详解。插入句子题是托福阅读考试的新题型，这类题目是给出一句话让我们来判断这句话应加入一个段落中四个方块的哪个部分。插入句子题在托福考试中出题频率很高，每篇文章都会出现一道，一般出现在每篇文章的倒数第二道题目，处于小结题或图表题的前面。下面小编继续介绍绍常出现的指向性信息剩下的内容。
(二)连接词
再此提到的连接词是指用于连接句子、表达一定逻辑关系的连接词。
通过一些连接词，我们可以知道两个句子之间的逻辑关系，如“我很喜欢吃甜食。所以，我长得非常胖。”通过这个“所以”，我们可以得知两句话是因果关系。
因此，在做这一类插入句子题的时候，我们就可以根据连接词所表达的逻辑关系，猜测前文可能会提到的信息，这样在寻找的时候就更具有针对性。例题：
Another explanation for the focus on animals might be that these people sought to improve their luck at hunting. This theory is suggested by evidence of chips in the painted figures, perhaps made by spears thrown at the drawings. But if improving their hunting luck was the chief motivation for the paintings, it is difficult to explain why only a few show signs of having been speared. Perhaps the paintings were inspired by the need to increase the supply of animals. Cave art seems to have reached a peak toward the end of the Upper Paleolithic period, when the herds of game were decreasing.
13.Look at the four squares [ ] that indicate where the following sentence could be added to the passage.
Therefore, if the paintings were connected with hunting, some other explanation is needed.
Where would the sentence best fit?
本句话说：因此，如果绘画与狩猎有联系，那么必须得有其他的一些解释。
由此，我们推断出本句插入的位置前面一定要说一个原因，并且这个原因一定是在说“绘画与狩猎的联系不是很大”，这样才能和本句的“必须有其他的解释”构成因果关系。所以，找到第三个位置前面在说：如果提高狩猎运气是绘画的主要目的的话，那么就很难解释xxx。这句话摆明是在质疑提高狩猎运气并不是绘画的目的，所以后面才能加上“需要其他的解释”。再往后看，发现在说“可能，绘画是由xxx激励产生的”，这就是另一个解释，所以前后非常连贯，这个题目放在第三个位置。
(三)承上启下
有些句子具有明显的承上启下特征，根据这个特征我们可以推断前后分别提到的信息，从而在寻找位置的时候，更加准确，不会被原文所误导，导致思路跑偏。例题：
Paragraph 4: Trade between the West and the settled and prosperous Chinese dynasties introduced new forms and different technologies. One of the most far-reaching examples is the impact of the fine ninth-century AD. Chinese porcelain wares imported into the Arab world. So admired were these pieces that they encouraged the development of earthenware made in imitation of porcelain and instigated research into the method of their manufacture. From the Middle East the Chinese acquired a blue pigment—a purified form of cobalt oxide unobtainable at that time in China—that contained only a low level of manganese. Cobalt ores found in China have a high manganese content, which produces a more muted blue-gray color. In the seventeenth century, the trading activities of the Dutch East India Company resulted in vast quantities of decorated Chinese porcelain being brought to Europe, which stimulated and influenced the work of a wide variety of wares, notably Delft. The Chinese themselves adapted many specific vessel forms from the West, such as bottles with long spouts, and designed a range of decorative patterns especially for the European market.
13. Look at the four squares [ ]that indicate where the following sentence could be added to the passage.
Foreign trade was also responsible for certain innovations in coloring.
Where could the sentence best fit?
本句话说：外贸还能够导致某些颜色上的创新。
所以这句话前面要说外贸能够有一些影响，后面如果续写，那么一定会进一步描述颜色上的某种创新。在回原文搜索的时候，明显发现第二个位置后面提到“blue pigment”，也就是在描述具体的coloring上面的信息，所以这个题的正确答案为第二个位置。
(四)信息点的对应
在某些插入句子题中，题目句子中并没有明显的代词、连接词或能够体会出的其他关系，这个时候就需要我们根据题目句子所提到的信息，回文章中寻找，那个句子提到的信息与题目句子相关，从而确定正确位置大概出现在那个句子附近。
例题
Paragraph 5: Scientists have known for some time that certain plants, called hyperaccumulators, can concentrate minerals at levels a hundredfold or greater than normal. A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice. Hyperaccumulators run the entire range of the plant world. They may be herbs, shrubs, or trees. Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
13. Look at the four squares [ ] that indicate where the following sentence could be added to the passage.
Certain minerals are more likely to be accumulated in large quantities than others.
Where could the sentence best fit?
本句话说：某些矿物质要比其他矿物质更有可能被大量的积累。
没有明显的表关系的词汇，所以这时候需要寻找哪一句提到了与本句话相似的内容：矿物质、大量积累。回文章寻找的时候，发现第二句话提到：一个对于已知的H的调查表明，75%的H会聚集N;而C、铜、锌等是其他的供选择的矿物质。本句话将矿物质分为两类，有些对应75%，也就是更有可能、更多被选择的，而其他的矿物质都是较少的可能（25%）。信息与题目句子说的事情完全一致。所以这个时候，正确答案非A即B。
在插入句子题中，一般会出现的规律是先“概括”后“具体”，所以，题目句子非常概括（某些、其他），而原文的第二句话非常具体（调查、H、锌、铜等），所以这个题目选择A位置作为答案。
以上就是托福阅读插入句子题详解的全部内容，更多资讯尽在百利天下。
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