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　1 自问自答式也即是提出疑问，后边语句给予答复，这个很简略，通常都不会犯错。在这里就不一一列举了。

　　2 加强疑问

　　Example 1 TPO5-3 The Cambrian Explosion

　　Paragraph 2: Scientists have asked important questions about this explosion for more than a century. Why did it occur so late in the history of Earth? The origin of multicellular forms of life seems a relatively simple step compared to the origin of life itself.

　　译文：科学家提出的一些疑问。为何Cambrian Explosion在地球前史这么晚的时分才发作?比较生命的来源，多细胞动物的来源应该是很简略的一步才对。

　　很显然，这问号问句后边的语句不是在答复为何呈现晚的疑问，反而是进一步在追问和着重疑问，已然多细胞动物的来源比较生命来源更简略，为何还那么晚呈现呢?进一步质疑。

　　Example 2 TPO8-2 Extinction of the Dinosaurs

　　Paragraph 3: If true, though, why did cold-blooded animals such as snakes, lizards, turtles, and crocodiles survive the freezing winters and torrid summers? These animals are at the mercy of the climate to maintain a livable body temperature. It’s hard to understand why they would not be affected, whereas dinosaurs were left too crippled to cope, especially if, as some scientists believe, dinosaurs were warm-blooded.

　　译文：假如真是这么(极点温度改变致使了恐龙的灭绝)，那么为何冷血动物，比方蛇类、蜥蜴、乌龟和鳄鱼却能够幸免于隆冬和酷夏呢?这些动物都是依赖于气温以使其身体坚持适合生计的温度。很难了解它们为何毫不受影响，但是恐龙却如此的无能以至于无法习惯，尤其是有些科学家以为恐龙是热血动物。

　　了解了语句意义，解题便很简略了，如下所示Q3。

　　Q3. Why does the author mention the survival of “snakes, lizards, turtles, and crocodiles” in paragraph 3?

　　To argue that dinosaurs may have become extinct because they were not cold-blooded animals

　　To question the adequacy of the hypothesis that climatic change related to sea levels caused the extinction of the dinosaurs

　　To present examples of animals that could maintain a livable body temperature more easily than dinosaurs

　　To support a hypothesis that these animals were not as sensitive to climate changes in the Cretaceous period as they are today

　　托福阅览解析：标题问问为何作者要提及蛇，蜥蜴，海龟和鳄鱼的幸存。先经过snakes, lizards, turtles and crocodiles定位到段首句，这句说假如是对的，那么为何这些动物能够在隆冬炎夏幸存呢。If true，说的是之前的内容，也即是上一段说的极点气候改变导致恐龙灭绝的理论假如是对的，though表示转折，所以经过这个问句，能够看出来，假如理论是对的，那么这些动物也该灭绝了，已然它们幸存了，那阐明是理论有疑问，所以这句提出的疑问即是在质疑前文观念的可靠性，答案选B。

　　A选项恐龙不是冷血动物所以才灭绝了，过错，原文表达的是冷血动物对气候更灵敏，更不简单活，已然它们都活下来了，那理论就有疑问了。

　　C说冷血动物比恐龙更简单坚持身体温度，过错，应该是更难才对。

　　D选项说冷血动物对气候改变不如恐龙灵敏，过错，应该是更灵敏才对。