【托福阅读题型：Succession,Climax,and Ecosystems句子插入题】托福阅读中句子插入题是重要题型之一。根据托福阅读题型不同来进行专项练习，是短期提高托福阅读能力的有效方法。同学们需要多加练习哦!

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　　托福阅读句子插入题：Succession,Climax,and Ecosystems

　　【Paragraph 7】Although the ecosystem concept was very popular in the 1950s and 1960s, it is no longer the　dominant paradigm. ■ Gleason's arguments against climax and biome are largely valid against ecosystems as well. ■　　Furthermore, the number of interactions is so great that they are difficult to analyze, even with the help of large　　computers. Finally, younger ecologists have found ecological problems involving behavior and life-history adaptations　more attractive than measuring physical constants. ■ Nevertheless, one still speaks of the ecosystem when referring to a　local association of animals and plants, usually without paying much attention to the energy aspects. ■(Succession,　Climax, and Ecosystems)

　　Look at the four squares [■] that indicate where the following sentence could be added to the passage.

　　They may be more interested in researching, for example, the adaptations that some aquatic animals undergo to survive in dry desert environments.

　　Where would the sentence best fit ?

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