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OG 176
176. As a result of the ground-breaking work of Barbara McClintock, many scientists now believe that all of the information encoded in 50.000 to 100.000 of the different genes found in a human cell are contained in merely three percent of the cell's DNA. (A) 50,000 to 100,000 of the different genes found in a human cell are contained in merely (B) 50,000 to 100,000 of the human cell's different genes are contained in a mere (C) the 50,000 to 100,000 different genes found in human cells are contained in merely (D) 50,000 to 100,000 of human cells' different genes is contained in merely (E) the 50,000 to 100,000 different genes found in a human cell is contained in a mere This question poses two problems: subject-verb agreement and accuracy of expression. Choice E, the best answer, states the matter clearly and grammatically. The subject, all of the information, must be taken as singular because the mass noun information is singular. Choices A, B, and C all mistake the number of the subject and incorrectly use the plural verb are contained. A, B, and D do not make it clear whether 50,000 to 100,000 represents all or a fraction of the genes in a cell. C and D, by referring to cells in the plural, do not make it clear whether the number mentioned is to be found in each individual cell or in a collection of cells. 本题的答案我看着有些晕 我只能看出用is, E我选了 我得问题是这样的 1. 50,000为何前面要加the 2. different genes found in a human cell 为何优于human cells' different genes 3. in a mere 为何优于in merely, mere此处修饰什么来判别的 谢谢! |
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