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1、改错题常考要点一、代词代词中主要讲解六个问题(一) 掌握代词的几种格 主格、宾格、所有格 名词前面用代词来修饰，只能用所有格（my books）(二) 反身代词当主语和宾语表示同一事物时，宾语使用反身代词。He killed himself. （他自杀了）He killed him. （他杀了他）例：Researchers at the University of Colorado are investigatingAB a series of indicators that could help Cthemselves to predict earthquakes.D分析：D错，应改为the
2、m。如果用反身代词themselves,指代对象是从句主语that(即名词indicators),这显然是错误的。从句意来看，help的宾语应该是主句主语researchers,故应用代词宾格而不是反身代词。注意C并没有错，情态动词could 比can语气弱，表示较小的可能性。Indicator为征兆，这些征兆帮助他们来预言地震。主语是征兆，后面指研究者，不是同一个事物(三) 代词的单复数，代词的性别在考试中如果代词打横线，代词错误的概率是非常高的，因此代词打横线，应该先看代词有没有错。例：The continental divide refers to an imaginary line i
3、n the North American Rockies（落基山脉） that divides the waters flowing into the Atlantic Ocean from it flowing into the ABCDPacific.分析：D错，应改为those。D指代复数名词waters, it是单数，显然是错误的，根据习惯故改为those。注意waters一词并没有错，它指江湖河海中的大片水域，可用复数形式。Water作为水是不可数名词，waters表示水域，通常使用复数形式，作主语谓语动词用复数。Work作为工作是不可数名词，work作为作品，可数不可数都可以，例如
4、： Many of his works= much of his work, work都表示作品例：In 1920 the presidential candidate Warren Harding coined Athe word“normalcy”（常态）to express social andB economic conditions they promised the nation.CD分析：D错，应改为he。动作promised是由Warren Harding发出来的，故用第三人称单数he来指代。例：Many critics believe that Amy Lwell s mos
5、t important Awork is not poetry, but his biography, JohnBC Keats, published the year of her death.D分析：C错，应改为her。his指男性，显然是错误的，应改为her与后面的her同指Amy Lowell.(四) Who和which的区别which指代事物或者动物，who指代人who/whom son往往要改为whose son, whose可以指代事物例：The human body contains more than six hundred muscles who A B account f
6、or approximately forty percent of the body weight.CD分析：B错，应改为which或that。先行词不是指人，而是指物，关系代词不能用who,故改为which或that。人体前面加定冠词the, account for 占有多大的比例，解释说明(五) that和which的区别介词后面使用which, 而不用that,in that除外例：When television was first introduced, the extent to that it AB would affect society could not have been
7、foreseen.CD分析：B错，应改为which。The extent to which, 介词加which(引导定语从句)，影响社会的程度没有被预见(六) 定语从句的特殊省略Reason后面有定语从句，中间往往省略why, Time后面有定语从句，中间往往省略when I do remember the time I heard the sweetest voice in the wild world.way后面有定语从句，中间省略了in which例：Research on pain has been neglected, although the mainly AB reason pe
8、ople take medicine is to relieve pain.C D分析：B错，应改为main。mainly为副词，不能个饰后面的名词，故改为形容词main。句子中people take medicine修饰reason，定语从句引导词被省略例：Commercial expansion from city to suburb hasaffected the way people in the United States-. (A) living and working (B) they live and work (C) live and work (D) to live and
9、 to work分析：选择C, the way people.影响了人们生活和工作的方式。二、介词介词是考试中出现的比较多的一个部分，而其中考的最多的就是介词的固定搭配问题。由于篇幅问题，我们在这里仅仅举出几个例题，在说明书手册中我们完整的列出了所有的介词搭配，这些列出的搭配在以前的语法题中出现过，只不过有的时候是正确的选项，有的时候重复考。(一) 介词搭配例：The teeth in the upper jaw function together those A BCin the lower jaw to cut, tear, and grind food.D分析：和一起，应该为togeth
10、er with，C错例：The Allegheny （阿勒格尼河）Mountain range is rich of coal. A B CD分析：B错改为be rich in例：The rotation of the Earth on its axis is responsible to the ABCalternation of periods of light and darkness.D分析：C错，应改为responsible for。形容词responsible后接名词作宾语时要加介词for。(二) 最重要的两个介词1、介词of 多余或者遗漏例：Mosquitoes usually
11、lay eggs, singly or in batches, on top stagnant water.ABCD分析：D错，应改为top of stagnant。on top of 是因定表达法，意为“在上面”。例：Christopher Plummer is a Canadian actor who has AB starred in stage, television, and film productions onCboth sides the Atlantic Ocean.D分析：D错，应改为sides of the。 sides为名词，the Atlantic Ocean也是名词
12、，中间明显少了一个介词。2、介词by一种情况表示被动，be+过去分词+by另一种表示通过的方式， by doing例：The ceremony of marriage in the United StatesAB can be performed from a justice of the peace.C D分析：D错，应改为performed by。谓语动词是被动式，performed的动作执行者应该由介词by来引导。例：Along the east coast ,American Indian womens councils A could veto a declaration of wa
13、r at refusing to B CD supply moccasins and field rations.分析：D错，应改为by refusing。通过拒绝提供鞋子和粮食，表示通过某种方式做某事要用介词by,故将at refusing 改为by refusing。例：Algebra is the branch of mathematics concerned with Aoperations on sets of numbers or other elementsBC that are often represented at symbols.D分析：D错，应改为by。动作的发出者应该用介词by来引导。三、谓语动词(一) 谓语动词的主谓一致、主谓分割原则例1：To the citizens of the United States, the bald eagle, A Americas national bird, symbolize strength and freedom.
