下面是出国留学网GMAT频道整理的GMAT语法机经(七)，欢迎阅读。
GMAT语法机经(七)
10. (BY decodeco v40 )还有一道题目考they their指代不清，包含这些代词的都不选。
1. Despite piles of evidence showing that insecticides in tropical rice cultivation were ineffective, it still remains the dominant pest-control tactic.
(A) insecticides in tropical rice cultivation were
(B) using insecticides in tropical rice cultivation as
(C) insecticide use in tropical rice cultivation was
(D) insecticide use in tropical rice cultivation to be
(E) insecticides in tropical rice cultivation are to be
Key: C
2. Japanese researchers are producing a series of robots that can identify human facial expressions, to which they will then respond; their goal is primarily creating a robot that will empathize with us.
(A) expressions, to which they will then respond; their goal is primarily creating
(B) expressions, then responding to them; primarily to create
(C) expressions and then respond to them; the researchers' primary goal is to create
(D) expressions as well as giving a response to them; their primary goal is creation of
(E) expressions and responding to them; primarily, the researchers' goal is creating
Key: C
3. Like any star of similar mass would do, once the Sun has exhausted the hydrogen in its core, it expands into a red giant, eventually ejecting its outer envelope of gases to become a white dwarf.
(A) Like any star of similar mass would do, once the Sun has exhausted the hydrogen in its core, it expands into a red giant, eventually ejecting
(B) Like any star of similar mass, once the hydrogen in the Sun's core is exhausted, then it expands into a red giant and eventually ejects
(C) As in the case of any star of similar mass, once the hydrogen in the Sun's core is exhausted, it will expand into a red giant, and eventually ejecting
(D) As any star of similar mass would, once the hydrogen in the Sun's core is exhausted it will expand into a red giant and will eventually eject
(E) As would be the case with any star of similar mass, once the Sun exhausts the hydrogen in its core, it will expand into a red giant and eventually eject
Key: E
4. The proliferation of so-called cybersquatters, people who register the Internet domain names of high-profile companies in hopes of reselling the rights to those names for a profit, led to passing the Anti-Cybersquatting Consumer Protection Act in 1999, allowing companies to seek up to $100,000 in damages against those who register domain names with the sole intent of selling them later.
(A) passing the Anti-Cybersquatting Consumer Protection Act in 1999, allowing companies to seek up to $100,000 in damages against those who register domain names with the sole intent of selling
(B) the passage of the Anti-Cybersquatting Consumer Protection Act in 1999, which allows companies to seek up to $100,000 in damages against those who register domain names with the sole intent that they will sell
(C) the passage in 1999 of the Anti-Cybersquatting Consumer Protection Act, which allows companies to seek up to $100,000 in damages against those who register domain names with the sole intent of selling
(D) the Anti-Cybersquatting Consumer Protection Act, which was passed in 1999, and it allows companies to seek up to $100,000 in damages against those who register domain names with the sole intent to sell
(E) the Anti-Cybersquatting Consumer Protection Act, passed in 1999 and allowing companies to seek up to $100,000 in damages against those who register domain names with the sole intent of selling
Key: C
5. Affording strategic proximity to the Strait of Gibraltar, Morocco was also of interest to the French throughout the first half of the twentieth century because they assumed that if they did not hold it, their grip on Algeria was always insecure.
(A) if they did not hold it, their grip on Algeria was always insecure
(B) without it their grip on Algeria would never be secure
(C) their grip on Algeria was not ever secure if they did not hold it
(D) without that, they could never be secure about their grip on Algeria
(E) never would their grip on Algeria be secure if they did not hold it
Key: B
