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题库 / OG2015V-SC-34
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
equipment, such as lights, that are visible and must be turned on and off and underestimate that
equipment, such as lights, that are visible and must be turned on and off and underestimate it when
equipment, such as lights, that is visible and must be turned on and off and underestimate it when
visible equipment, such as lights, that must be turned on and off and underestimate that
visible equipment, such as lights, that must be turned on and off and underestimate it when
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visible equipment和unobtrusive equipment平行。--排除BCD
equipment 是单数，用is， 不能用are。--排除A
the pronoun “it” actually refers to “the amount of energy used by visible equipment” because this is the only kind of energy the sentence has mentioned so far.
A/B，that修饰equipment，是单数，不能用are
A/D的that指代the amount of energy，that/where/who等可以指代一个特定的名词也可以指代复合名词整体。
B/C/E的it指代the amount of energy used by visible equipment，错误。it/they完整指代整个复合名词。
A/B，that修饰equipment，是单数，不能用are
A/D的that指代the amount of energy，that/where/who等可以指代一个特定的名词也可以指代复合名词整体。
B/C/E的it指代the amount of energy used by visible equipment，错误。it/they完整指代整个复合名词。
想问一下，后面that引导的定语从句是修饰前面的equipment吗？是因为中间是个插入语可以去掉再看，所以它修饰前面的equipment吗
是的，that作为限制性定语前面不能加逗号，除非有插入语。所以这里只能修饰equipment，不能修饰lights
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简单题，错选e
rc
考查：
未画线部分平行，单复数；
1. lights是light的复数形式
2. 未画线部分used by unobtrusive equipment和前面used by visible equipment平行
3. that指代的是the amount of energy
这种形容词平行的题好像也碰到过
补充一点：visible equipment和unobtrusive equipment是平行，from RON：选择带平行的选项的时候，画线句是什么形式，要看非画线句中平行的形式（平行的后半句）
简单题：
Visible equipment表达清晰，说明人容易意识到照明类电器的用电，如果按照ABC的表达，那么删除掉定于部分，意思就不清楚了。
E：when放在这里不合适，这里是要做两类电器的用电量，that指代the amount of energy
that 指代前面的 the amount of energy