1、代词指代错误：代词的性、数、格;比较特别考点是one 和you 不能相互指代 。 例： Even with (A) a calculator, you must have a basic understanding (B) of mathematics if one expects(C) to solve complex problems correctly. No error (E) 分析：本题第一个代词是you,所以C错，应改为you expect。因为one和you 不能互相指代

　　2、平行并列题型

　　例：Each time Caroline turns on her computers, she has (A) to enter a company code, then her initials, and then enters a password (B) before she can begin working(C). No error (D)

　　分析：B enters a password 前面出现了可爱的and,这个词决定了前后必须是平行并列，要求形式对称、概念对等、功能相同。所以前面也应该有第三人称单数动词+名词的结构和enters a password并列，而前面出现的是her initials所以正确改法：去掉enters,这种考题在国内高考(微博)也经常考，这个考点因为出题频率特别的高。

　　3、主谓一致错误：常见错误类型，比较简单送分题。

　　例： The bright (A) fiber glass sculptures of Luis Jimenez has received (B) critical acclaim not only (C) in his home state, New Mexico, but also in (D) New York.

　　分析： 本题显然主语sculptures是个复数而谓语动词has是个单数,所以主谓不一致，应该把B 改为have received

　　4、词性混用题型

　　例：Although (A) the new device was the most clever (B) designed bird feeder that Ms. Rodriguez had ever owned (C), it could not keep squirrels from(D)stealing the birdseed. No error (E)

　　分析：正确答案是B 修饰动词designed 的用adv. cleverly

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