3. At ground level, ozone is a harmful pollutant, but in the stratosphere it shields the Earth from the most biologically harmful radiation emitted by the Sun, radiation in the ultraviolet band of the spectrum. (A) in the stratosphere (B) in the stratosphere, in which (C) it is in the stratosphere in which (D) in the stratosphere where(A) (E) it is in the stratosphere and 帮我解释一下B,D为什么错啊?
, but连结两个句子 而把他后面未因为这样后面就没有谓语了。
4. Believed to originate from a small area on their foreheads, elephants emit low-frequency sounds that may be used as a secret language to communicate with other members of the herd. (A) Believed to originate from a small area on their foreheads, elephants emit low-frequency sounds that may be used (B) Elephants emit low-frequency sounds that are believed to originate from a small area on their foreheads, and they may use this (C) Elephants emit low-frequency sounds, believed to originate from a small area on their foreheads, that they may use (D) Originating, it is believed, from a small area on their foreheads; elephants emit low-frequency sounds they may use(C) (E) Originating, it is believed, from a small area on their foreheads, low-frequency sounds are emitted by elephants that may be used 这题为什么选C啊,A错哪里了啊?
这题我不确定,大概是因为(A)还原回去变成elephants are believed to originate from a small area on their foreheads 语意逻辑错误。
应该是Elephants emit low-frequency sounds...这件事情被认为是originate from a small area on their foreheads,因此用结果状语修饰整句话。
5. Charlotte Perkins Gilman, a late nineteenth-century feminist, called for urban apartment houses including child-care facilities and clustered suburban houses including communal eating and social facilities. (A) including child-care facilities and clustered suburban houses including communal eating and social facilities (B) that included child-care facilities, and for clustered suburban houses to include communal eating and social facilities (C) with child-care facilities included and for clustered suburban houses to include communal eating and social facilities (D) that included child-care facilities and for clustered suburban houses with communal eating and social facilities(D) (E) to include child-care facilities and for clustered suburban houses with communal eating and social facilities included D选项对称吗?一个不是that从句,一个是介词短语吗?
看句子要看完整... for urban apartment houses...and for clustered suburban houses 很对称的。
6. Cooperative apartment houses have the peculiar distinction of being dwellings that must also operate as businesses. (A) of being dwellings that must also operate as businesses (B) of dwellings that must also operate like business (C) that they are dwellings that must operate like business (D) that, as dwellings, they must also operate like businesses(A) (E) to be a dwelling that must also operate as a business XDF不是说being必错嘛~~如何确定being是分词还是动名词啊?
being从未必错,而是在作为分词的时候常常是可以省略的。 介系词后面接的是动名词的Ving而非分词。 动名词就是同时具备动词与名词两种身分, 介词后面一定放名词,但是你想接个动词,这时候就用动名词形式Ving。
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