题型分类:文章总结题
题干分析:选择概括性的正确选项
选项分析:
B选项对应第二段内容,选项中 first successful plants 对应第三个句子 Lichens were probably the first successful flora;选项中 which consist of algae and fungi living in a symbiotic relationship 对应第四个句子 These are not single individual plants; each one is a symbiotic combination of an alga and a fungus.
C选项对应第三个段落,段落前两个句子 Lichens helped…preparing a soft bed of soil... Now, other forms of life could take hold: ferns and mosses.
F选项对应原文第四段最后一句 They could travel through the air, float in water, and lie dormant for many months,第五段第一个句子 Plants with large, buoyant seeds—like coconuts—drift on ocean currents and are washed up on the shores,以及最后一段最后一个句子 In a surprisingly short time, angiosperms filled many of the land areas on Hawaii that had been bare.
A选项中的因果关系属于无中生有;
D选项对应第四段第一个句子 Many millions of years after ferns evolved (but long before the Hawaiian Islands were born from the sea), another kind of flora evolved on Earth: the seed-bearing plants,但是第四段重点讲 the seed-bearing plants,D选项属于一个细节;
E选项说为了有更大的生存和发展机会,seeds must move to a new habitats,属于无中生有。
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