雅思长难句分析|例句2段，长难句语法分析

　　长难句在雅思考试阅读部分、写作部分，都用得到，长难句对很多烤鸭来说，还是有一定的理解难度的，本文为大家分析两段长难句，一起来看看吧！

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　　1. While two fifths of the students provided the information that the rainforests provided oxygen, in some cases this response also embraced the misconception that rainforest destruction would reduce atmospheric oxygen, making the atmosphere incompatible with human life on earth. (test1 passage 1)

　　分析：本句的主句为“this response also embraced the misconception”;“While two fifths of the students provided the information that the rainforests provided oxygen”为while引导的让步状语从句，while在此相当于although;“that rainforest destruction would reduce atmospheric oxygen”为that引导的同位语从句，作misconception的同位语;“making the atmosphere incompatible with human life on earth”为分词短语作状语。

　　2. Eye position in freshwater dolphins, which often swim on their side or upside down while feeding, suggests that what vision they have is stereoscopic forward and downward. (test1 passage 2)

　　分析：本句的主句为“Eye position in freshwater dolphins suggests that…”;“which often swim on their side or upside down”为which引导的定语从句，作freshwater dolphins的定语;“while feeding”为while引导的状语，分词短语作状语;“that what vision they have is stereoscopic forward and downward.”为that引导的宾语从句，作suggest的宾语;“what vision they have”为what引导的主语从句，作is的主语。