下面是2013年9月15日的SAT官方每日一题的内容，是关于写作方面的，题型是句子改错。SAT官方每日一题是collegeboard每天都会发布的题目，关于SAT考试的三个部分的各个题型。下面我们就一起来看一下这个SAT官方每日一题吧。

　　SAT官方每日一题之写作---句子改错：

　　Writing > Identifying Sentence Errors

　　The following sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence contains no error, select choice E.

　　A(It depends on) where in the world it is B(located), an underground electric-railway system C(may be)called a subway, underground railway, tube, D(or) metro. E(No error)

　　(A) A

　　(B) B

　　(C) C

　　(D) D

　　(E) E

　　The correct answer is A

　　Explanation

　　The error in this sentence occurs at (A), where awkward phrasing and an unnecessary pronoun create a comma splice. The entire phrase “It depends on” can be reduced to “Depending on.”

　　下面是一道和SAT官方每日一题相似的题目，供大家练习：

　　A(The origin) of amusement parks lie in ancient and medieval religious festivals and trade fairs, B(where) merchants, entertainers, and food sellers C(gathered) D(in order to) take advantage of the large crowds. E(No error)

　　Answer Choices

　　(A) A

　　(B) B

　　(C) C

　　(D) D

　　(E) E

　　The correct answer is A

　　Explanation

　　The error in this sentence occurs at (A), where there is subject-verb disagreement. To agree with the plural verb “lie,” the singular “origin” must be changed to the plural “origins.”

　　以上就是关于2013年9月15日SAT官方每日一题中写作句子改错部分的详细内容，包括了题目和选项以及答案，后面附有一道相关的练习题。大家可以在备考SAT的过程中关注SAT每日一题的内容，这样就可以更好有不间断的练习，也就能在日积月累的过程中得到提高。