下面为大家整理的是关于SAT改进句子练习题，共4例。SAT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。下面大家就和澳际小编一起来看看这些题目的详细内容吧。

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　　1.Althea Gibson, the first African American tennis player to be recognized as a world champion,beginning to play amateur tennis in the 1940s.

　　(A) beginning to play

　　(B) began playing

　　(C) and she began playing

　　(D) she began to play

　　(E) she had begun playing

　　2.In just a couple of years, low-carbohydrate diets have accomplished what the government has failed to do in decades of trying: it has convinced the public of rined grains, that they are bad and whole grains are good.

　　(A) it has convinced the public of rined grains, that they

　　(B) convincing the public about rined grains, which

　　(C) convince the public that rined grains

　　(D) convinces the public of rined grains, they

　　(E) convincing the public that rined grains

　　3.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

　　4.Although biologists have made tremendous progress in mapping the human genome, the genetic roots of most common diseases remained largely elusive.

　　(A) remained

　　(B) had remained

　　(C) remain

　　(D) are remaining

　　(E) remains

　　Explanation

　　1.The correct answer is B

　　Choice (B) is correct. It avoids the sentence fragment error of the original by providing a main verb (“began”) for the subject of the sentence, “Althea Gibson.”

　　2.The correct answer is C

　　Choice (C) is correct. It avoids the awkwardness and wordiness of the original by clearly and concisely stating what the government has failed to do—it has failed to “convince the public that rined grains are bad and whole grains are good.”

　　3.The correct answer is B

　　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.”

　　4.The correct answer is C

　　Choice (C) is correct. It avoids the verb tense error of the original. The past tense verb “remained” is not consistent with the present perfect tense verb “have made” and should be changed to the present tense verb “remain.”

　　以上就是这4例SAT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，可以用来做日常的练习，也可以作为对备考的一个小小的检测。

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