Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.
two to three times higher as that of power from smaller, more efficient plants that can both
higher by two to three times as that from smaller, more efficient plants that both can
two to three times higher than those for power from smaller, more efficient plants that can both
between two to three times higher as those for power from smaller, more efficient plants that both can
between two to three times higher than from smaller, more efficient plants that they can both
题目分析:许多公用事业从大型煤炭和核能获得电力,以比从小型的、效率更高的、可以即利用废弃热能又利用当下大量的天然气优势的厂家高出两到三倍的成本。
选项分析:
形容词比较级(higher)与than搭配;对比的是成本(costs,复数形式),所以只能用those,排除A B D。且B D中的both...and...为平行触发语,未划线部分没有can,所以both要放在can之后。
E中,plants之后that引导的从句不缺成分,因此不能看作是定语从句,而要看成同位语从句。但逻辑上来说,应该是“即利用废弃热能又利用当下大量的天然气优势 的 plants”,而不是用“他们即利用废弃热能又利用当下大量的天然气优势”来解释说明plants。
higher than
costs----those
both and
有比较级就要用than,排除ABD,剩下CE
E比较对象错误,比较的是两样东西(the costs for power from large coal and nuclear operations和the costs for power from smaller, more efficient plants that both make ... and take advantage of ...),要重复that/those。
those for power与cost平行。
另外,E中,plants之后that引导的从句不缺成分,因此不能看作是定语从句,而要看成同位语从句。
those 指代costs
瞎了
E比较对象有错 后半句先行词在在从句中要做主语
E中,plants之后that引导的从句不缺成分,因此不能看作是定语从句,而要看成同位语从句。但逻辑上来说,应该是“即利用废弃热能又利用当下大量的天然气优势 的 plants”,而不是用“他们即利用废弃热能又利用当下大量的天然气优势”来解释说明plants。
同位语从句不要出现代词,一般都会重复。
考察:
比较级+than
e:that从句形容plants,不需要they代词出现; between 赘余。
同位语和定语从句的差别:
同位语去掉后不改变原义。
(E中,plants之后that引导的从句不缺成分,因此不能看作是定语从句,而要看成同位语从句。但逻辑上来说,应该是“即利用废弃热能又利用当下大量的天然气优势 的 plants”,而不是用“他们即利用废弃热能又利用当下大量的天然气优势”来解释说明plants。
考察:
比较级+than
e:that从句形容plants,不需要they代词出现; between 赘余。
E:that不引导定语从句
at costs介宾作状语修饰utilities obtain power,
utilities obtain power at costs that are higher than costs for smaller plants. ok
E,因为they的存在, that没做成分,不是宾语从句,错误
有cost for这种说法么?我是觉得这里怪怪的,所以DE里面选了E。
选错E, 对比的是成本(costs,复数形式),所以只能用those
错选E,没有 弄清比较的对象,
比较级+than还是很容易识别出来,可以排除,ABD
e 是比较对象的错误
can both直接排除了DB 在ace里面选 higher 必须要搭配than a 去掉 比较的是 cost 必须要有代词 those选c
這裡的最主要考點應該是要有 指代對象(those-> costs)可刪除ABD
再透過 Idiom 1. two to three times > between two to three times 2. higher than> higher as/ by 3. can both V and V > both can V and V較不對稱 來選吧
至於介系詞of/ from 適用性好像不是判斷點 對嗎?
但我還是有點不理解這句比較結構還原的原文什麼呢?