看了很多以前的讨论,我还是选C.
Q10:
Antarctica receives more solar radiation than does any other place on Earth, yet the temperatures are so cold and the ice cap is reflective, so that little polar ice melts during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf most of the world’s great cities.
- is reflective, so that little polar ice melts during the summer; otherwise,
- is so reflective that little of the polar ice melts during the summer; were it to do so,
- so reflective that little polar ice melts during the summer, or else
- reflective, so that little of the polar ice melts during the summer, or
- reflects so that little of the polar ice melts during the summer; if it did
首先, sth is so adj and sth so adj 的形式在书面语中是完全可以接受的。 (而且老外很喜欢这种表达方式, 我在阅读小说或新闻的时候, 看到过很多这种形式)
其次, little polar ice melts (几乎没有冰融化)和little of the polar ice melts (有少量的冰融化)意思并不完全相同。 而GMAT有一个潜规则, 就是原句除了语法错误之外, 句意不宜轻易改动。
再者, or else 完全等同于otherwise. 也没必要改成虚拟语气。
最后, were it to do so 中不仅 it 指代不清, ice or Antractic? 由于前面是分号;所以后面的内容是对前面的整个句子进行补充说明, it 完全可以指代Antarctic. 这样的话, 意思不同, Antarctic cannot melts. 而且, were it to do so本身句意和逻辑上都讲不通。 what will it do ? "so " only indicates melting little of the ice, 如果是这样的话, 那海洋水位如何上涨呢? 和前面讲的内容也自相矛盾呀。
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