牛牛帮忙分析下~~~OG紫34题答案解析

Pope_Xie

牛 牛 牛

Hendy

Between D and E....D is parallel

overestimate the amount of energy used by visible equipment.......and underestimate that [amount of energy] used by unobtrusive equipment.............

微WIND飘荇

Skyllis 发表于 2009-4-19 19:16
谢谢楼上2位，第一个问题明白。clause not parallel to adj但第二个问题仍然迷糊。我将错误选项E带入原句， ...

overestimate the amount of energy used by visible equipment
and underestimate the amount of energy used by visible equipment
是并列的 英语中可以用that 替代“同类”单数名词，those替代同类复数名词，写成that used by visible equipment

that和those可以替代上文提及的名词，以避免重复。
比如：
Spartina establishes itself on substrates ranging from sand and silt to gravel and cobble and is tolerant of salinities ranging from that of near freshwater (0.05 percent) to that of salt water (3.5 percent).从泥沙地到卵砾石地，米草属植物都能生长，其耐盐度在接近淡水（0.05%）和盐水（3.5%）的范围内。
The Mariner spacecraft found that the surface of Mars, as well as that of its two moons, is pitted with impact craters formed by meteoroids falling in from space.水手计划中的宇宙飞船发现在火星表面布满来自太空的流星撞击表面形成的陨石坑，火星的两颗卫星也是如此。
At the end of the experiments, the results showed that the actual weight of the brains of the impoverished rats was less than that of those raised in the enriched environment (though they were fed the same diets).
最后，结果表明生活在单一环境中的老鼠的大脑重量要比生活在复杂情况下的老鼠的大脑轻（即使它们被喂养的食物一样的）。

很多机构 老师都是乱说的，讲到这个题乱讲的

用E错误，因为it是指代，指代前面的“the amount of energy used by visible equipment”，逻辑错误， 因为是明显设备的耗能 和 不明显设备的耗能在对比。 如果用when的话，也会出现一个问题，when如果后面没有主语，默认主语和主句一样，即people，但后面的used by想说的是the amount of energy，所以两处错误。