下面是是2013年8月31日的SAT官方每日一题的内容，是关于写作方面的，题型是改进句子。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。大家和无忧小编一起来看一下这个SAT官方每日一题吧。

　　SAT官方每日一题之写作---改进句子：

　　Writing > Improving Sentences

　　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.

　　There are many famous quotations previously credited to “Anonymous,” researchers have discovered that they were in fact written by female authors.

　　(A) There are many famous quotations previously credited to “Anonymous,” researchers have discovered that they were in fact written by female authors.

　　(B) Many famous quotations that were in fact written by female authors were previously credited to “Anonymous” and researchers discovered this.

　　(C) Researchers have discovered many famous quotations that were previously credited to “Anonymous,” they were in fact written by female authors.

　　(D) Researchers have discovered that many famous quotations previously credited to “Anonymous” were in fact written by female authors.

　　(E) The discovery of many famous quotations previously credited to “Anonymous” but in fact written by female authors were made by researchers.

　　The correct answer is D

　　Explanation

　　Choice (D) is correct. It avoids the comma splice error of the original by combining the two independent clauses that were improperly joined by only a comma (“There are many famous quotations previously credited to ‘Anonymous’” and “researchers have discovered that they were in fact written by female authors”) into one sentence consisting of a main clause (“Researchers have discovered”) and a dependent clause (“that many famous quotations previously credited to ‘Anonymous’ were in fact written by female authors”).

　　下面是一道和SAT官方每日一题相似的题目，供大家练习：

　　New analyses of a fossil suggest winged insects having possibly emerged as early as 400 million years ago.

　　(A) suggest winged insects having possibly

　　(B) suggest that winged insects may have

　　(C) suggesting that winged insects, they may have

　　(D) that suggests winged insects as having possibly

　　(E) that suggest winged insects to have possibly

　　The correct answer is B

　　Explanation

　　Choice (B) is correct. It avoids the error of the original by replacing the awkward and wordy “suggest winged insects having possibly” with the more precise and idiomatic “suggest that winged insects may have.”

　　以上就是关于2013年8月31日SAT官方每日一题中写作改进句子的详细内容，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。