关于托福句子插入题大家肯定都已经很熟悉了。基本都是倒数第二题，题目会在段落中安排四个黑色的小方块，再给我们一个新句子，问我们新句子放在哪个位置比较好。
这样看似简单戳一戳就能搞定的题目其实背后的要求也比较高。它不仅需要我们了解这段落内部的逻辑，还要了解句与句之间的语法联系。
技巧一：代词锁定法
这是我们拿到句子插入题的第一步，先看看新句子里面有无代词，如果有的话可以根据代词+名词的结构，判断出前文也会提到这个名词，然后就回到四个黑色小方块前面的句子搜索，哪个句子有这个名词就选择哪个小方块。
例题一：
Paragraph 5: These forces were the rapidly expanding electronics and telecommunications companies that were developing and linking telephone and wireless technologies in the 1920s. In the United States, they included such firms as American Telephone and Telegraph, General Electric, and Westinghouse. They were interested in all forms of sound technology and all potential avenues for commercial exploitation. Their competition and collaboration were creating the broadcasting industry in the United States, beginning with the introduction of commercial radio programming in the early 1920s. ■With financial assets considerably greater than those in the motion picture industry, and perhaps a wider vision of the relationships among entertainment and communications media, they revitalized research into recording sound for motion pictures.
上面这个例题一下给了我们两段，如果我们想要把段落都看完再来选答案肯定会花不少时间，但是如果我们用上代词的技巧就能非常简单快速地把题目做出来了。
新句子中有this research这个代词+名词的结构，说明在这个新句子的前面会说到一个research。
技巧二：句间逻辑分析法
当然并不是每个题目都像上面那种情况一样善良，我们也会碰到有代词但用不上或者压根没有代词的情况。
例题二：
Leatherbacks keep their body heat in three different ways. The first, and simplest, is size. The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape. An adult leatherback is twice the size of the biggest cheloniid sea turtles and will therefore take longer to cool off. Maintaining a high body temperature through sheer bulk is called gigantothermy. ■It works for elephants, for whales, and, perhaps, it worked for many of the larger dinosaurs. ■It apparently works, in a smaller way, for some other sea turtles. ■Large loggerhead and green turtles can maintain their body temperature at a degree or two above that of the surrounding water, and gigantothermy is probably the way they do it. ■Muscular activity helps, too, and an actively swimming green turtle may be 7°C (12.6°F) warmer than the waters it swims through.
这道题看似可以用我们的老方法代词来做，但操作起来就会发现these animals除了可以帮助我们排除掉第一个小方块，其实不能直接帮助我们选出答案，因为后三个小方块前面的句子里都有不同的动物。
技巧三：原文联系排除法
可能会有刷题比较多的同学提问，如果新句子中既没有代词也没有逻辑，那要怎么办呢?不要慌张，如果觉得新句子给到的线索不太多，也可以结合小方块前后原文本身的联系来做排除法。一起来看下面的例题吧!
例题三：
Speculation on the origin of these Pacific islanders began as soon as outsiders encountered them, in the absence of solid linguistic, archaeological, and biological data, many fanciful and mutually exclusive theories were devised. Pacific islanders are variously thought to have come from North America, South America, Egypt, Israel, and India, as well as Southeast Asia. ■Many older theories implicitly deprecated the navigational abilities and overall cultural creativity of the Pacific islanders. ■For example, British anthropologists G. Elliot Smith and W. J. Perry assumed that only Egyptians would have been skilled enough to navigate and colonize the Pacific. ■They inferred that the Egyptians even crossed the Pacific to found the great civilizations of the New World (North and South America). ■In 1947 Norwegian adventurer Thor Heyerdahl drifted on a balsa-log raft westward with the winds and currents across the Pacific from South America to prove his theory that Pacific islanders were Native Americans (also called American Indians). Later Heyerdahl suggested that the Pacific was peopled by three migrations: by Native Americans from the Pacific Northwest of North America drifting to Hawaii, by Peruvians drifting to Easter Island, and by Melanesians. In 1969 he crossed the Atlantic in an Egyptian-style reed boat to prove Egyptian influences in the Americas. Contrary to these theorists, the overwhelming evidence of physical anthropology, linguistics, and archaeology shows that the Pacific islanders came from Southeast Asia and were skilled enough as navigators to sail against the prevailing winds and currents.
我们来看第一个小方块，后面说到了Many older theories很多更早的理论，而我们这个新句子说的是之后的理论，在没有任何展开的情况下是没办法直接连上以前的理论的，所以第一个选项pass。 |
