SAT语法句子改错参考答案及解析

　　Answer to Question 1

　　In English, x [is] expected to y is idiomatic usage: expected for it to in choice A and expected that it should in choice C are thus unidiomatic. Choice D awkwardly substitutes its rise for the pronoun it as the subject of might have been expected; since it refers to inflation, the subject of the verb eased, it is preferable as the subject of might have been expected, the verb form corresponding to eased. Choice E is needlessly wordy, roundabout, and vague. Choice B is best.

　　Answer to Question 2

　　The phrases equivalent to in A, the equivalent of in B, and equal to in C have too broad a range of meanings to be used precisely here: that is, they can suggest more than merely numerical equality. Also, as quantitative expressions, equivalent and equal often modify nouns referring to uncountable things, as in "an equivalent amount of resistance" or "a volume of water equal to Lake Michigan." To establish numerical comparability between groups with countable members, the phrase as many as is preferable. Choice D, however, uses this phrase improperly in comparing eight million people to enrollment, not to other people. The comparison in E, the best choice, is logical because people is understood as the subject of are enrolled.

　　Answer to Question 3

　　In choices A, B, and C, the plural pronouns their and they have no plural noun for a logical referent. Since In Holland modifies all of the sentence that follows, A states confusedly that Holland spends a percentage of its gross national product on military defense in the United States. In C, the passive is spent is not parallel with the active spends. Lack of parallelism in choice D produces an illogical comparison: the percentage that Holland spends is said to exceed not the percentage that the United States spends but rather its total military defense spending. Parallel phrasing allows E, the best choice, to make a logical comparison between what Holland spends and what the United States does [spend].

　　Answer to Question 4

　　Choices A, B, and E can be faulted for using should in place of will to indicate future occurrences: should carries the suggestion, especially unwarranted in this context, that the Canadian scientists are describing what ought to happen. The phrase once in every nine years is needlessly wordy in B and C. Also, the language of C implies more than can reasonably be maintained: i.e., that a meteorite will strike one person, and no one else, exactly once during every nine-year period. Choice D is best: the phrasing is concise and free of unintended suggestions, and the use of the indefinite article in a human being is appropriate for describing what is expected to be true only on the average.

　　Answer to Question 5

　　In choices A and C, it intrudes between the halves of the compound verb has moved... and [now] draws to introduce a new grammatical subject, thereby creating a run-on sentence: the inclusion of it requires a comma after classics to set off the new independent clause. The placement of now is awkward in C, and the construction living abroad... and who is not parallel in C and D. Misplacement of words creates ambiguity in E: for example, the positioning of both immediately before the phrase describing the authors suggests that there are only two contemporary Hispanic authors living abroad. The logical word placement and parallel phrasing of B, the best choice, resolve such confusions.

　　SAT语法要加强练习，有更多精力的考生可用《SAT 11 套题》(即Princeton 11 Review)巩固知识点，并且注意各种题型做题时间的分配。后期的任务是模考和查缺补漏，考前的冲刺阶段最好不要再做新题目。