下面为大家整理的是关于2013年9月12日—9月18日的SAT语法改进句子练习题，共4道。SAT语法改进句子题目要求考生在语法知识和逻辑思维能力两个方面都有所掌握，所以需要大量的练习。下面大家就和天道小编一起来看看这些题目的详细内容吧。

1.Before she became a major rock star capable of filling stadiums, she sings in little-known clubs and as a back-up singer for other acts.

(A) sings

(B) has sung

(C) is singing

(D) had sung

(E) has been singing

2.Woody Guthrie wrote and adapted more than a thousand songs, many of them are about the struggles of workers and the poor in the United States.

(A) many of them are

(B) many of which are

(C) many are

(D) which are, many of them,

(E) and many of them that are

3.Johannes Gutenberg is generally credited to bring together the two main concepts of modern printing: movable pieces of metal type that could be reused, and a printing press for producing sharp impressions on paper over and over.

(A) to bring

(B) as he brought

(C) by bringing

(D) with bringing

(E) for the fact of bringing

4.Modern discus throwers use much the same technique of ancient Greece.

(A) of ancient Greece

(B) of ancient Greeks

(C) as ancient Greeks did

(D) as they did in ancient Greece

(E) like ancient Greeks

参考答案及解析：

1.The correct answer is D

Explanation

Choice (D) is correct. It avoids the verb tense error of the original by providing the past perfect tense verb phrase “had sung” to indicate an action that was completed before another action (e.g., “became a major rock star”) in the past.

2.The correct answer is B

Explanation

Choice (B) is correct. It avoids the comma-splice error of the original by using the pronoun “which” in place of the pronoun “them,” thereby turning what was originally an independent clause (“many of them are … United States”) into a relative clause that modifies “songs.”

3.The correct answer is D

Explanation

Choice (D) is correct. It avoids the unidiomatic phrasing of the original by linking an appropriate prepositional phrase, “with bringing,” to the verb “credited.”

4.The correct answer is C

Explanation

Choice (C) is correct. It avoids the error of the original by comparing what “Modern discus throwers” do to what “ancient Greeks did” (not to “ancient Greece,” a comparison that would not make logical sense).

以上就是这4道SAT语法改进句子练习题的全部内容，非常详细，后面附有详细的答案解析。大家在备考自己的SAT语法考试的时候，可以加强练习相关题目。