二、平行&结构
1. 平行总则: 平行对像的选择非常重要, OG84中be前面既有不定式, 又有名词, 已知的不定式平行有method和way(OG4E), 如果把固定结构拆开, 则必须先补全结构, TS9-26D就是比较具有迷惑形, 但是要明白method首先要和to搭配不全结构, 其中D选项后面的and前后非常平行, 优选.
2. to do X and (to) do Y; X be done and Y (be) done, 千万注意后面没错, OG218E
3. 否定句的并列用or, 大全713 但是Unlike A and B.
4. not…but/ …but(可以not verb…+but verb…) & instead of OG264B& rather than & as…as OG168 & or 大全14 & more x than y OG133C& the same to x as to y (介词的补出以示平行) & as well as 大全508A & besides & unlike & both…and & from…between & neither…nor & either…or & the more…the more
例如. OG40. In metalwork one advantage of adhesive-bonding over spot-welding is that the contact, and hence the bonding, is effected continuously over a broad surface instead of a series of regularly spaced points with no bonding in between.
(A) instead of
(B) as opposed to
(C) in contrast with
(D) rather than at 答案D, 体会不同介词构成的短语之间的平行.
注意: 比较结构往往是含有省略的, 因此不要以为不平行, OG251A, 省略了the number was在when前面.
5. be前后平行(包括has been); be动词和实意动词不能并列; Doing sth is N错, 因为不平行, OG240AD, 注意be动词前后的时态也要平行; OG6E是结合了定语从句的be动词平行, N+that be+N.
6. 平行应该尽量的对帐, 状语从句和定语从句平行就不好, OG225ACE.
7. 主从句和宾语从句及修饰语中, 主语相同时语态大部分要平行, 但有例外, 因此不要作为开始判断依据, OG16E&OG23DE&OG170&OG133C&OG209; 主要动词相同的不平行必错, 主语相同的不平行不一定错, OG204(主语和动词都不同) & OG186(主要动词不同但是主语相同), OG193E(主语和动词都不同), OG214题干(主要动词不同); 分析OG170, 一个东西刚开始是被动, 不可能后来自己又可以主动了.
8. 分词和从句不可以平行, OG135C; 分词和名词也不可以平行.
9. such as提示后面的部分遵照平行, OG3.
10. 特指与特指平行, 有the的名词平行对象也要有the, 但是极少数专有名词除外, OG106B, OG169AE, 大全315D. 但是注意, the + 名词1 and 名词2, 这是在名词2前省略了限定词, 而不是前面是特指, 后面是泛指; 但是泛指无须平行.
11. 过去分词和现在分词只要是adj.的作用, 可以平行, 但前提是逻辑主语必须相同.
12. OG83: Any medical test will sometimes fail to detect a condition when it is present and indicate that there is one when it is not. When it is not明显是not后面省略了present, 这就需要前面有一个present和它构成平行, 对于这种省略的提示应该敏感.
13. 注意平行的范围,不能在and 的平行结构中间穿插一堆东西, 造成理解的困难, OG27D.
14. 平行的最高境界是内容和词义也要平行, 体会OG8D, OG169E, OG109BE.
15. AND (then, therefore, also等副词不能代替and起连词的作用. 例如, then在并列结构中的用法为:do A and then do B, and不能省略, OG71):
1当形容a sequence of action时, 用and的平行, OG71C(注意这个考点决定了A的错误, then表示一种逻辑动作的先后顺序, C的and平行结构比then+分词更好); 但是注意OG261AC说明了不用and同样可以表达chrnological order(因为A的不平行错误更大).
2and可以表示出”cause-and-effect”的逻辑因果关系, 而when不可以(when表示同时发生 OG4, 大全561BE). 另外大全808 B也充分说明了and可以表达出因果关系, 逻辑意思为王.
3and 不能用于主从句之间,应该用于两个并列句之间, 大全138B.
4and的并列结构中, 必须严格平行对称, 名词必须和名词性结构平行, OG73D; 形式上面也要相同, OG93E(注意这里D酷似更平行, 但是平行指的是大结构上面的, 和partly because那题一样, 开始的大结构平行就可以, 小心陷阱).
6and连续性比as well as好, 且表一定程度的因果, 不能A, B, as well as C, 意为as well as指的是前面提到的若干东西的补充, 从地位上面无法完美平行; 连接A and B的时候, 可用A as well as B, 表既…又, 大全74, OG197A.
7不可以把逻辑上面联系的一组并列拆分成两组, OG155CE; 也不可以把逻辑关系不同的放在一组, OG190DE.
8and连接的两边最好成分对等, 若不对等, 也不要把谓语省虑, OG81. In 1973 mortgage payments represented twenty-one percent of an average thirty-year-old male's income;and forty-four percent in 1984. (A) income; and forty-four percent in 1984 (分号不可以用来分隔句子和短语, OG50B) (B) income; in 1984 the figure was forty-four percent (C) income, and in 1984 forty-four percent (D) income, forty-four percent in 1984 was the figure (E) income that rose to forty-four percent in 1984 To establish the clearest comparison between circumstances in 1973 and those in 1984, a separate clause is needed to describe each year. Choices A and C, in failing to use separate clauses, are too elliptical and therefore unclear.
9and表示并列关系, 乱加会破坏句子之间的紧密型和逻辑关系, OG3E, OG68C, OG154CDE; 但是这也不代表and 结构就不能改变, 答案是比出来的, 大全457.
10and的并列如果省略主语, 则默认主语相同, 这可能是错误的原因, OG234D; OG264AD对比说明能把代词省掉就省掉, 简洁.
11and前面如果没有逗号的话, 后面的分句必须省略主语, 否则Run-on, OG135AC(注意that从句不存在这问题), 即使前面有逗号, 如果平行有要求, 也不能有, OG163E(三个并列).
16. 对于词性的判断很重要, 这决定是否平行, OG221(A中的aid for中aid是名词), 但是这题其实还有一层意思是说词性不同, 平行的内容不同.
17. 名词可以和名词性从句并列, 因为功能相同.
18. and also是正确的, 表连接, 与not only…but also相似, 但是不可以单独用but also, 因为那样就成了contrast的意思, OG216A解释中提到.
19. 关于结构:
2主谓之间可以加短的除时间状语外的修饰成份, 如果是介宾做的后置定语, 则限定主语的范围, OG238A(这点很重要, 正确的区分主语的限制语, 并把位置放对是排除DE的好方法); OG193E说明了介宾短语放在主语后面要很慎重, 因为必须照顾后面的平行部分的语意.
3a. 时间状语的位置. 时间状语的位置: 主语前/ auxiliary verb前(偶尔)/ main verb前(注意OG32是用定语从句的方式加状语, 是可以的)/谓语后(大部分, 大部分是在句尾, 但是TS04-4D说明谓宾之间加入时间状语也可以); 一般放在句尾或句首, OG190ABE就是这个问题的说明, 而且OG解释中明确了主谓之间加入时间状语是Awkward; 一般情况下, 时间状语在句首或者句尾, Eg. Inflation in medical costs slowed in 1986 for the fifth consecutive year but were still about 50 percent greater than rate of price increases for other items included in the consumer price index.
(A) Inflation in medical costs slowed in 1986 for the fifth consecutive year but were
(B) Inflation in medical costs slowed for the fifth consecutive year in 1986 but was
答案A充分说明了位置的重要性; 注意OG135B, 由于省略了主语, 所以相当于还是把时间状语放在句首.
例: OG32. Some buildings that were destroyed and heavily damaged in the earthquake last year were constructed in violation of the city's building code.
(B) Some buildings that were destroyed or heavily damaged in the earthquake last year had been
(E) Last year some of the buildings that were destroyed or heavily damaged in the earthquake had been
BE时间状语位置不同, 修饰的动作不同, 表示的意思就不同了: 一个说地震是去年, 一个说重建是去年, 逻辑意思第一.
b. 介宾结构的时间状语放在句尾有可能出现歧义的情况, 但是这个判断顺序在最后面, 除非题目明确了对于这个考点的考察. (OG86就不能算是歧义)
Eg. 大全182. Bringing the Ford Motor Company back from the verge of bankruptcy shortly after the Second World War was a special governmentally sanctioned price increase during a period of wage and price controls.
(B) What brought the Ford Motor Company back from the verge of bankruptcy shortly after the Second World War was a special price increase that the government sanctioned during a period of wage and price controls. (另外A的Doing is N也是错误标志)
时间状语 during a period of wage and price controls 修饰对象有歧义,既可以指Bring Ford back after WW2 发生于 during a period of wage and price controls也可以指A special gov. price increase 发生于 during a period of wage and price controls
c. 修饰性状语位置. 修饰性状语必须判断是修饰单个词还是整个句子: OG256E, 大全72DE, 都是修饰整个句子, 所以放在句首比较好, 但是OG133也说明, 状语前置前提是句子里面只有一个动作或者几个动作发生情况相同, 如果有两个动作发生在不同的时间, 放在前面会造成逻辑错误(OG133A, 此时状语紧跟被修饰词, 不然窜改意思), 或者状语提前确实会产生意思错误(OG32BE).
d. 时间状语也要小心夹心修饰的问题, OG262E(尽管不是以插入语的形式, 可还是不好)
4Verb+to do结构中间可以插入介宾作为定语后置起限定性修饰作用, OG247A.
5OG130ADE, GWD10-21, Verb+that结构中, 究竟那些是应该被宾语从句包括的, 逻辑上面要分清楚, OG117是一个很好的例子:
Claims from a sample that it can assess… 第一句中from…歧义, 以为是修饰claims
Claims that it can assess …from a sample 的, 不应该拆开.
6N+of的结构最好不拆, 中间插入别的修饰成份Confusingly, Awkward, OG247B.
7注意被动语态中的be和-ed之间可以插入状语, OG170C.
20. Resulting from the destruction of the largest library of the ancient world at Alexandria x 对于介宾短语尤其小心, 就像”火山在信里爆发”, 介宾短语可以修饰动词和名词, 因此要小心修饰的语意窜改, OG263A, OG32E, OG117ABD(解释提到把介宾短语放在that的后面明确修饰后面的分句, 这个考点要把握); 因此介宾短语必须跟在被修饰的成份后面, 避免歧义, 大全266 During the Great Depression, industrial output fell by nearly fifty percent from its peak in 1929 down to its nadir in 1933. (B) During the Great Depression, industrial output fell by nearly fifty percent from its peak in 1929 to its nadir in 1933. (B) (E) During the Great Depression, industrial output fell from its peak in 1929 to its nadir in 1933 by nearly fifty percent.
这里by引导的介宾短语要跟在被修饰的fell后面.
但是, 这个考点应该辩证的接受, 即当介宾结构不会带来复杂的修饰的时候, 例如OG263, 当然要放在后面, 但是如果附带的修饰结构会产生头重脚轻时, 例如OG196D, 尽管这里的over the bridge是有歧义, 但是由于这个介宾结构后面带了一个复杂的定语从句, 无法提前, 只能在后面(介宾短语修饰歧义没有定从修饰这里产生的歧义大).
注意, 介宾结构的时间状语在句尾, 不会造成修饰前面名词的歧义, OG86E.
21. Among/ Out / Between/ At/ In/ -ed(OG166)+be+subject 倒装. GMAT中倒装不是重点, 即不会考只有倒装的不同的句子, 倒装的作用: 1强调要修饰的部分, 将要突出部分提前. 2平衡句子结构, 避免头重脚轻, OG166; 在不可以倒装的情况下, 不可以把助动词和动词分开, OG20D.
22. like不可以引导从句, 因此seem like+句子, 必错.
23. have done中的have在and并列句中第二个可以省略, OG113D; be done中的be同理.
24. in both public and private life 无须补出介词in
both in public and in private life 要补出, 但是没有第一句简洁
25. Run-on-sentence, 用and, but, yet连接两个主语不同的独立分句需要加逗号, 即主语不同的两个句子, OG114E, yet连接的句子主语相同, 因此可以不加逗号, 不要当成错误.
读句子的时候要有意识,但是例如OG207A中and连接的是两个原因状语从句(相当于省略了一个相同的Because), 因此不加逗号; 注意不可将分句改成主句, 否则会run-on, OG10.
26. 主句也不可变成从句, 否则Sentence Fragments, OG41. Under a provision of the Constitution that was never applied. Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it by the legislatures of two-thirds of the states.
(D) has never been applied, whereby Congress is required to call a convention to consider possible amendments to the document when formally asked to do so
(E) has never been applied, Congress is required to call a convention to consider possible amendments to the document when formally asked to do so
D的错误就是whereby把主句变成了从句, 形成了Sentence fragments, 同理OG68DE.
27. 动词加与不加差异大, 不加修饰紧跟成分, 加了修饰主语, OG114AE.
28. 分号会将主从句分开(减弱逻辑关系), 因此原句用and时慎重换分号, OG225D说明在最后选择的阶段, 一定要明确原句的希望表达的意思, A是两个从句修饰, D打乱句子的紧凑和联贯;不要用分号连接句子和分词, 因为分词结构不能单独构成一个句子, OG50C.
29. despite/ in spite of/ because of/ on account of/ as a result of后面不能跟句子, 只可接简单名词结构(这个名词结构可以很长, 甚至包括分词定后), 不可以接动名词OG48D; 当选项中同时出现because/ since和上述结构的时候, 选because/ since.
30. a collection of/ a body of/ an array of/ a group of +复数名词+单数谓语.
31. 从后不从前(由B决定): A or B; not A but B; either A or B; A nor B; not only A but also B; neither A nor B; there be
从前不从后(由A决定): A with B; A, including B, A as well as B; A, together/ along with B; A no less than B; A more than B; A besides B; A except B
32. ETS从来不用like举例, 用的话就用such as; such…as(大全299); for instance; A, such as B. such as中B肯定是和A是同一类事物, 但是like用于比较, A like B, 意思是A像B一样, 两者之间不是同一种类, 不可以混用, OG208CE; 注意不要以为出现like和such as就一定是用such as, 大全229.
33. OG205: Such dependent clauses can only occur in the predicates of full clauses. Although结构在句子中间, 前后必须是都有谓语的句子.
34. Wrong: Ezra Pound was interested but not very knowledgeable about economics.
This is wrong because the preposition that’s needed after the word interested (in) is not the same as the preposition that follows the word knowledgeable (about).
Correct: Ezra Pound was interested in but not very knowledgeable about economics.
One way to check for faulty ellipsis is to complete each component idea in the sentence. Unless each part of the sentence can stand alone, you’ve found a case of faulty ellipsis. Trying that with our wrong example, we have:
Wrong: Ezra Pound was interested about economics, but Pound was not very knowledgeable about economics.
Clearly that won’t do, but both parts of the correct version can stand alone.
Correct: Pound was interested in economics, but Pound was not very knowledgeable about economics.
Wrong: London always has and always will be the capital of the United Kingdom.
This is wrong because the verb form that’s needed after has is not the same as the one that’s needed after will, so both must be included.
Correct: London always has been and always will be the capital of the United Kingdom.
Note that in the correct version, both parts of the sentence can stand alone. See what happens if you do that with the wrong version.
35. 关于前置形容词和后置形容词的作用:
1如果是作为前置形容词: 即形容词位于句首, 单独修饰主句的主语. 该形容词的作用和分词一样, 逻辑主语必须一致, 而且可以还原为完整的句子, OG 162题干. 2如果是作为后置形容词: 既形容词位于修饰对象之后, 且两者之间有逗号隔开. 该形容词的作用作为定语就近修饰, 可以还原为定语从句. 但如果定语从句中有情态动词且不可省略, 则不可省略为简单的形容词; 而且后置形容词不可以像现在分词修饰整个句子, 在该种情况下, 必须在形容词前面加上具体名词, OG38.
36. When you are using a verb tense with more than one part such as Simple Future (will help), adverbs usually come between the first part and the second part (will never help, is definitely going to meet).
37. the more...the more...结构的四个原则:
1the more后面的名词必须使用冠词或所有格, OG252: the more the children..., the greater their... 2后面的谓语如果是be动词的话, 可以省略, 这一点对于前后两个都适用. (特别当主谓语时it is时, 常同时省略.) eg.What size box do you want?---The bigger, the better. 就是的The bigger it is, the better it is的省略结构. 上面的252题the greater...引出的主句显然省略了is, 表语是greater. 3第二个the more后面可以使用倒装, 而第一个后面却不行 (因为只有主句才能倒装,从句绝不能倒装! 如果继续深究第二个the more后面什么时候用倒装时, 可认为如果主语长, 谓语动词短时, 为避免头重脚轻, 主谓语倒装).
4表达的出的共变关系是不可以轻易改变的, 否则信息层次变化, OG7C.
38. OG35: A comma is needed after Rhone in choices A and D to set off the modifying phrase that begins Vincent...; without the comma, the phrase appears to be part of the main clause, and it is thus unclear what noun should govern the verb sold. 说明对于插入成分, 要明确谁是主语, 并且在插入语和主要动词间隔开, 否则修饰模糊.
39. 一个具有迷惑性的平行OG62. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.
(A) changing the measured strain across a fault zone and varying
(B) changing measurements of the strain across a fault zone, and varying
(C) changing the strain as measured across a fault zone, and variations of
(D) changes in the measured strain across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among
首先tilting根据后面并列的名词看出是名词, 但是紧跟的and会造成并列已经结束的假象, 这里要明白并列中间的东西也可以用and连接.
另外一个: The suspect in the burglary was advised of his right to remain silent, told he could not leave, and was interrogated in a detention room. (A) of his right to remain silent, told he could not leave, and was (B) of his right to remain silent, told he could not leave, and (B) (D) that he had a right to remain silent, could not leave, and was D的语意不对, 后面两个动作不用建议, 且主被动平行相对awkward.
40. OG89. A recent national study of public schools shows that there are now one microcomputer for every thirty-two pupils, four times as many than there were four years ago.
(A) there are now one microcomputer for every thirty-two pupils, four times as many than there were (C)
(B) there is now one microcomputer for every thirty-two pupils, four times as many than there were
(C) there is now one microcomputer for every thirty-two pupils, four times as many as there were
(D) every thirty-two pupils now have one microcomputer, four times as many than there were
(E) every thirty-two pupils now has one microcomputer, four times as many as
DE的four times作为一个后置成分, 修饰前面的one逻辑错误; ABC利用there be表示比率, 将这个问题避开.
41. OG103. Students in the metropolitan school district lack math skills to such a large degree as to make it difficult to absorb them into a city economy becoming ever more dependent on information-based industries.
(A) lack of math skills is so large as to be difficult to absorb them into a city's economy that becomes
(B) are so lacking in math skills that it will be difficult to absorb them into a city economy becoming (B)
lack在原句里面是动词, A将其变成了N, 造成了前面的主语成了Dangling element, 这种错误要意识到, 同理OG228CDE; 而且OG103A它也使后面的them指代错误 (因为主语变了, 对于这种变更造成的影响要注意).
42. 主谓宾结构中, 复数主语可以对应单数宾语, Eg. We’are a team.
43. it be adj. for x to do y 是ETS喜欢的结构, 其中it是形式主语.
44. 另外, OG160是用while引出了两个句子的平行, 再用and引出第三个, 比较灵活的平行和句子连接, 结构看清楚.
45. It is an oversimplified view of cattle raising to say that all one has to do with cattle is leave them alone while they feed themselves, corral them, and to drive them to market when the time is ripe.
(C) all one has to do with cattle is leave them alone while they feed themselves and then corral them and
(D) the only thing that has to be done with cattle is leave them alone while they feed themselves, corral them, and (C)
首先观察结构, D中的corral them是并列在分句下面, 而分句的主语是they, 明显是错误的, 但是C就用and去和主句并列, 解决了这个问题(注意C的and then是和leave组合并列再和drive并列). 另外, all one has to do with cattle is leave这里leave前省略了to, 同理可能还有what从句 is (to) do, 类似例句:
All I can do is watch you leave. OG244选项C: one thing they have had to do is work, 尽管这是个错误的选项但og没有指出work前要加to.
46. 不要被插入语迷惑, 大全537, that is是插入语, 后面仍然是修饰mechanisms的定语从句.
47. for后面接doing一般表示sth的用途, eg.it’s a knife for slicing bread; 表示目的, 还是不定式最好, 因此当for doing和不定式同时出现时, 选择不定式, OG112BD, OG160CE, OG239AC, OG204BE; for+名词结构表示目的也是正确的, Eg.Several million tons of stone were quarried in France for the building of eight cathedrals.
48. 明确修饰对像很重要, OG119DE就是没有明确, 导致significant in compunding不能作为状语修饰前面的动词is growing.
49. 主句放在句末头重脚轻, confusing, OG27E.
50. What is difficult to understand is A.;What are difficult to understand are A and B, OG211B.
51. 大全431, 相同的形容词要放在前面, 对比AB; 如果是形容词的话并列的话就是: both public and private employee.
52. 建立一种思想: SVO结构完整, 即”谁, 怎么样”, OG192E就是结构不完整, 话没有说完;
同理: OG71. The original building and loan associations were organized as limited life funds, whose members made monthly payments on their share subscriptions, then taking turns drawing on the funds for home mortgages.
(A) subscriptions and then took turns drawing
(B) subscriptions and then took turns, they drew
(C) subscriptions and then drew, taking turns (C)
BC的错误在于take turns干什么? Drew什么? 将原句一个完整的过程拆开是不对的, 这个思想是很重要的, OG256C就是这个道理, 不能把原来的完整意思拆开说.
53. adj.+N and/or +N, adj管两个, 可能存在可数与否的修饰问题, OG107B.
54. 副词应该放在要修饰的形容词前面, 否则awkward and vague, 而且这种说法不如用名词结构好, OG73C.
55. 并列形式的平行(be, and, not only…but also)尽量保持时态的统一(OG246CDE, OG248C), 除非逻辑上面或者时间状语上面有明显的暗示.
56. 表语从句的that不可以省略.
57. 不可以be+because of, 用be+caused by, OG237C.
58. being单独出现强调正在进行, 一般错误, 介词后面的being单说.
59. when/ while+N, 错误. 当状语从句中是系表结构的时候, 而表语这个时候有时一个名词,那么在英语的语法中是不能省略前面的主语和谓语的. 所以When he was a teacher, he lived in the school, 不能省略成when a teacher, he lived in the school. 当后面是形容词或者是介词短语的时候是可以省略的. |