有趣的长难句26
昨天的正确答案是C，小伙伴们答得很顺利，实力不俗啊！
今天的文章题为《The Arrival of Plant Life in Hawaii》，讲的是夏威夷群岛上植物是怎么来的，以及怎样存活的。众所周知，夏威夷群岛是火山岛，由于火山喷发，岩浆从海底喷出露出海面形成岛屿。夏威夷群岛形成初期，岛上只有炽热的岩浆和岩石，没有植物。而今，岛上遍布植物，这些植物好像是从岩石深处冒出，并扎根生长，繁衍至今。
今天的题目是典型的考题，文章读到这里就觉得一定会考，果然出了这道长难句。今天的改写很有迷糊性，要仔细哦。
It is significant that the earliest living things that built communities on these islands are examples of symbiosis, a phenomenon that depends upon the close cooperation of two or more forms of life and a principle that is very important in island communities.
Which of the sentences below best expresses the essential information in the highlighted sentence in the passage?
A. Some of the earliest important examples of symbiosis—the close cooperation of two or more living things—occur in island communities.
B. Symbiosis—the close cooperation of pairs or small groups of living organisms—is especially important in these island environments.
C. The first organisms on these islands worked together closely in a relationship known as symbiosis, which is particularly important on islands.
D. It is significant to note that organisms in the beginning stages of the development of island life cannot survive without close cooperation.
ABCD四个答案哪个是正确的？解答长难句，锻炼理解力。
