2014-02-18 10:51:42 来源: Collegeboard 责编:楷维留学指南
2014年2月14日SAT真题
Writing > Improving Sentences 改进句子
Part or all of the following sentence is underlined; beneath the sentence are five ways of phrasing the underlined material. Select the option that produces the best sentence. If you think the original phrasing produces a better sentence than any of the alternatives, select choice A.
It is thought that a dog’s sense of smell is generally 10,000 to 100,000 times better than humans.
(A) humans
(B) humans’ are
(C) humans have
(D) a human’s
(E) a human has
2014年2月14日SAT考试官方每日一题答案:D
解析:Choice (D) is correct. It avoids the error of the original by properly comparing “a dog’s sense of smell” to “a human’s” sense of smell.
2014年2月15日SAT真题
Mathematics > Standard Multiple Choice 数学选择
Read the following SAT test question and then click on a button to select your answer.
A manager estimates that if the company charges
dollars for their new product, where
, then the revenue from the product will be
dollars each week. According to this model, for which of the following values of
would the company’s weekly revenue for the product be the greatest?
(A)![]()
(B)![]()
(C)![]()
(D)![]()
(E)![]()
2014年2月15日SAT考试官方每日一题答案:D
解析:The graph of
is a downward-facing parabola that intersects the
-axis at
and at
. Parabolas are symmetric, so the maximum value of
occurs at
, which is halfway between
and
. (When
, the value of
is
.)
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