Question of the Day. Can you answer today's question? 这就是SAT考试官网collegeboard的每日一题的训练。SAT考试不像托福、雅思或者GRE、GMAT考试，会有回忆机经，因此官网上的SAT真题就显得尤为重要。SAT考试官方每日一题可以让你熟悉SAT考试的出题方向及出题规律，有很大的参考价值，是每一位SAT考生都需要的备考资料。

　　楷维留学小编为大家整理SAT考试官方真题每日一题解析，此次整理2014年4月12日-4月13日SAT考试官网每日一题汇总。希望对大家备考SAT考试有所帮助。

2014年4月12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.

　　The North American continent, first colonized by people from Siberia, crossing the now sunken land bridge between Siberia and Alaska about 15,000 years ago.

　　(A) The North American continent, first colonized by people from Siberia, crossing

　　(B) People from Siberia first colonized the North American continent, who crossed

　　(C) First colonized by people from Siberia was the North American continent, they crossed

　　(D) First colonized by people from Siberia, who crossed the North American continent,

　　(E) The North American continent was first colonized by people from Siberia, who crossed

2014年4月12日SAT考试官方每日一题答案：E

解析：Choice (E) is correct. It avoids the sentence fragment error of the original by providing a main verb (“was”) to indicate the action taking place in the sentence.

2014年4月13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 train travelingmiles per hour forhour covers the same distance as a train travelingmiles per hour for how many hours?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

2014年4月13日SAT考试官方每日一题答案：B

解析：When the speed of a train in miles per hour is multiplied by the travel time in hours, the distance traveled by the train is obtained. The distance that the first train travels is miles per hour times hour, which is miles. Using the variable for the travel time, in hours, of the second train, the distance that the second train travels is miles per hour times hours, which is miles. Since the two trains travel the same distance, , which gives hours, the travel time of the second train.