下面是是2011年10月6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。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---改进句子：

　　Writing > Improving Sentences

　　Part 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 finest quality raw silk comes from the commonly domesticated silkworm, Bombyx mori, it feeds on the leaves of the mulberry tree.

　　Answer Choices

　　(A) it feeds

　　(B) feeding

　　(C) they feed

　　(D) which feeds

　　(E) having fed

　　The correct answer is D

　　Explanation

　　Choice (D) is correct. It avoids the comma splice error of the original by providing the appropriate modifying phrase “which feeds on the leaves of the mulberry tree.”

　　下面是一道和SAT官方每日一题相似的题目，供大家练习：

　　Many of the instruments used in early operations of the United States Army Signal Corps were adaptations of equipment used by the Plains Indians, particularly that of the heliograph.

　　Answer Choices

　　(A) Corps were adaptations of equipment used by the Plains Indians, particularly that of the heliograph

　　(B) Corps, there were adaptations of equipment used by the Plains Indians, particularly the heliograph

　　(C) Corps, and in particular the heliograph, was an adaptation of equipment used by the Plains Indians

　　(D) Corps, and in particular the heliograph, were adaptations of equipment used by the Plains Indians

　　(E) Corps being adaptations, the heliograph in particular, of those used by Plains Indians

　　The correct answer is D

　　Explanation

　　Difficulty: Medium

　　Correcting the error in this sentence requires moving the information about the heliograph closer to "instruments," which is the material it relates to. Only choice (D) accomplishes this without introducing an error in subject-verb agreement, as in (C), or producing a sentence fragment, as in (E). The correct sentence reads: Many of the instruments used in early operations of the United States Army Signal Corps, and in particular the heliograph, were adaptations of equipment used by the Plains Indians.

　　以上就是关于2011年10月6日SAT官方每日一题中写作部分的详细内容，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。

更多SAT官方每日一题：

2011年10月5日SAT官方每日一题---阅读

2011年10月4日SAT官方每日一题---数学

2011年10月3日SAT官方每日一题---写作

2011年10月2日SAT官方每日一题---阅读

2011年10月1日SAT官方每日一题---数学

2011年9月30日SAT官方每日一题---写作

2011年9月29日SAT官方每日一题---阅读

2011年9月28日SAT官方每日一题---数学

2011年9月27日SAT官方每日一题---写作

2011年9月26日SAT官方每日一题---阅读

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