《毕出21套》解析:语法第2套

毕出 ·

语法第2套

1.

Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.


(A) suggest that at least a portion of the area was remaining

(B) suggest at least a portion of the area remaining

(C) suggests that a least a portion of the area remained

(D) suggests at least a portion of the area that had remained

(E) suggests at least a portion of the area to have remained


解析:

A. 整句话主语为radiocarbon dating,故谓语动词应该为suggests。此选项出现了主谓不一致的错误。

B. 主谓不一致错误同A。

C. 正确。

D. 此选项中,area做suggests的宾语,整句话的主干为“radiocarbon dating suggests area(年代测定法表明了一个区域)”,但逻辑上应该是年代测定法表明了一件事,这件事的内容为“区域是无冰的”。所以,suggest身后加宾语从句更合理,而不是单单一个名词。

E. area做宾语,语意错误同D。

2. 

Just as the free computer operating system Linux has of late become even more crash resistant, so support for it within the computer industry has been growing.


(A) as the free computer operating system Linux has of late become even more crash resistant, so

(B) as with the free computer operating system Linux that has of late become even more crash resistant, so the

(C) as the free computer operating system Linux has of late become even more crash resistant, so it has been that

(D) like with the free computer operating system Linux becoming even more crash resistant of late, so

(E) like the free computer operating system Linux that has of late become even more crash resistant, so it is that


解析:

固定用法——Just as A do B, (so) C do D:就像A做了B一样,C做了D。

A. 正确。

B. Just as身后应该加句子,而不能加介词短语,属于语法错误。

C. it指代Linux这个系统,此时so后面的句意为“ Linux是一件事情”,语意有误。

D. like表比较的时候,是介词,身后只能加名词,不能再加一个介词,属于语法错误。

E. so身后的句意有误,同C。


3.

Because Miranda, the smallest moon of Uranus, has a large number of different surface features, including craters, mountains, valleys, and fractures, some astronomers suggest that at one time repeated impacts broke the surface apart, and after which the fragments were subsequently rejoined because of mutual gravitational attraction.


(A) repeated impacts broke the surface apart, and after which the fragments were subsequently rejoined because of

(B) repeated impacts on the surface broke it apart, after which the fragments having rejoined with

(C) through repeated impacts that the surface broke apart, after which the fragments subsequently rejoined by

(D) the surface broke apart with repeated impacts, after which the fragments having rejoined through

(E) the surface broke apart as a result of repeated impacts, after which the fragments rejoined through


解析:

A. and身后出现after which引导的定语从句,但and身前并没有定语从句可以与之并列,属于语法错误。

B. after which引导定语从句,但从句里缺少谓语动词,属于语法错误。

C. 划线部分开始是suggest的宾语从句。此选项中,宾语从句里缺少主句。

D. after which引导定从,从句里缺谓语,错误同B。

E. 正确。


4. 

Banks are having troubles that are particularly acute in areas where real-estate values have dropped sharply and where industries have retrenched, which eliminate thousands of high-paying jobs.


(A)   sharply and where industries have retrenched, which eliminate

(B) sharply and where industries have retrenched, eliminating

(C) sharply and with industries having retrenched, eliminating

(D) sharply, with industries retrenching and the elimination of

(E) sharply, with industries retrenching, which eliminates


解析:

A. which引导定语从句,修饰industries。但逻辑上,取消了上千个高薪工作并不是industry自己本身的特点,而是“industries have retrenched(行业萎缩)”这件事情的结果,所以用状语更合理。此选项有语意错误。

B. 正确。两个where引导的定语从句修饰area;eliminating做伴随状语,修饰retrench这个动作。

C. and身后出现独立主格结构(with+名词+doing),但and身前并没有独立主格可以与之并列。

D. “with industries retrenching”作状语,修饰drop这个动作。但逻辑上,“房价下跌”和“行业萎缩”这两件事之间并没有逻辑关系。它们是并列关系,是areas的两个特点。

E. “with industries retrenching”作状语,修饰drop,错误同D。

5. 

In a speech before the Senate Banking Committee, the chairman of the Federal Reserve painted an optimistic picture of the economy, suggesting to investors the central bank in the near future is not lowering interest rates.


(A) suggesting to investors the central bank in the near future is not lowering interest rates

(B) suggesting to investors that the central bank would not lower interest rates in the near future

(C) which suggests that to investors in the near future interest rates will not be lowered by the central bank

(D) with the suggestion to investors in the near future that interest rates would not be lowered by the central bank

(E) with the suggestion to investors of interest rates not being lowered in the near future by the central bank

解析:

A. suggest后面省略了连词that,并且将第二个宾语investors倒装到了前面,还原为“suggesting (that)the central bank in the near future is not lowering interest rates to investors(意为,把某件事告诉投资者)” 。但是,宾语从句里的in the future说明是将来发生的动作,用“is not lowering”正在进行式,不合理。

B. 正确。

C. which引导定语从句,修饰名词,但前面没有合理的修饰对象。

D. “with suggestion”是介词短语做状语。但是,介词短语中的名词本身是没有逻辑主语的,此时我们并不知道这是谁的建议,整句话的字面意思就成了“带着(不知道是谁的)建议,主席描绘了一个蓝图”。逻辑上,肯定是主席发出了suggest这个动作。所以,此选项语意有误。

E. “with suggestion”语意错误同D。

6. 

The yield per acre of coffee berries varies enormously in that a single tree, depending on both its size and on climate and altitude, could produce enough berries to make between one and twelve pounds of dried beans a year.


(A) enormously in that a single tree, depending on both its size and on climate and altitude, could produce

(B) enormously in that a single tree, dependent on its size and also on climate and altitude, is able to produce

(C) enormously, because a single tree, depending on its size and on climate and altitude, is able to produce

(D) enormously, because a single tree, being dependent on its size, climate, and altitude, is capable of producing

(E) enormously, because a single tree, dependent both on its size as well as on climate and altitude, could produce


解析:

A. in that是连词,意为“因为”,和because一样。

both...and...为平行触发语。要求“both A and B”中A和B的形式必须一模一样,类似的还有either A or B,not only A but also B等等。此选项中,both后面为size这样单独一个名词,而and身后为on climate这样一个介词短语,造成平行对象不对等。属于语法错误。

B. “dependent on its size and also on climate and altitude”是省略了being的伴随状语,其逻辑主语为tree。我们将主语代入后抽主干:tree is dependent.(SVC结构,dependent是形容词做表语,on开始是状语成分)。此时,状语的核心意思为“树是依赖的”。相比之下,如C所写的“树取决于尺寸和气候高度”更合理。

C. 正确。伴随状语主干为:tree depends on its size and on climate and altitude.(SVO结构)

D. dependent错误同B。

E. dependent错误同B。


7. 

Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he quickly built his own device from an organ pipe and spectacle lenses.


(A) Galileo did not invent the telescope, but on hearing, in 1609, that such an optical instrument had been made, he

(B) Galileo had not invented the telescope, but when he heard, in 1609, of such an optical instrument having been made,

(C) Galileo, even though he had not invented the telescope, on hearing, in 1609, that such an optical instrument had been made, he

(D) Even though Galileo did not invent the telescope, on hearing, in 1609, that such an optical instrument had been made,

(E) Even though Galileo did not invent the telescope, but when he heard, in 1609, of such an optical instrument being made, he 


解析:

A. 正确。

B. when引导的时间状语从句中,he(主语)heard of(谓语)instrument(宾语),having been made是instrument的定语,所以此句话抽主干为“他听说了工具”。逻辑上,应该是他听说了一件事情,而不是听说了一个东西。

C. Galileo和he重复,造成整句话主语重复。

D. Even though引导状语从句,整句话缺少主句主语。

E. but将“Galileo did not invent the telescope”和“he built his own device”并列在even though引导的状语从句之下,造成整句话没有主句,属于语法错误。


8. 

George Washington Carver dedicated his life to the economic strengthening of the South with improvement of soil and diversification of crops.


(A) the economic strengthening of the South with improvement of soil and diversification of crops

(B) strengthening the economy in the South with soil improvement and the diversification of crops

(C) strengthening the economy of the South through soil improvement and crop diversification

(D) the strengthening of the economy of the South through improving soil and crop diversifying

(E) the economic strengthening in the South with improving soil and diversifying crops 


解析:

dedicate A to B,SVOO结构,A和B分别为两个宾语。

A. of the South做strengthening的定语,意为“南部的加强”。此时,第二个宾语的字面意思为“经济的南部的加强”,但逻辑上应该是“南部的经济的加强”,“南部”修饰“经济”才对,而不是修饰“加强”。

B. A of B结构意为:B的A,B对A有“拥有”关系。比如,female teacher意为“女教师”,但“teacher of female”就成了女性所拥有的教师,前后两者的意思完全不同。

所以,diversification of crops意为“庄稼拥有的多元化”;而crop diversification中,crop是diversification的定语,意为“庄稼多元化”。逻辑上,后者更合理。

C.正确。

D. improving soil是动名词,crop diversifying是纯名词,语法上,应该纯名词和纯名词并列,动名词和动名词并列。

E.in the South修饰strengthening,错误同A。

9.

Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.


(A) their horny jaws function for teeth

(B) its horny jaws function for teeth

(C) its horny jaws function as do teeth

(D) the horny jaws function as teeth do

(E) the horny jaws function as teeth


解析:

Although引导状语从句,意为“虽然很长一段时间里乌龟没有牙齿”;“in some contemporary turtle species”是修饰主句的第二个状语,注意,状语和其修饰的句子之间可以有逗号也可以没有;整句话主语为edges。

A. function为谓语动词,意为“有功能”。for teeth作状语修饰function。此时,主句的字面意思为“下巴边缘有功能,为了牙齿”。但逻辑上应该是“下巴边缘充当了牙齿的功能”。

B. its指代不合理。虽然从单复数形式上可以指turtle,但结合句意我们发现,前半句说的是“乌龟之前没有牙齿”,后面说的是“当代的乌龟如何如何”,所以这里一定是指当代乌龟(contemporary turtle species)的下巴,应当用their。

C. its指代有误,同B。

D. function作谓语。由于as后面是“teeth do(主语+谓语)”,所以这里的as在做状语从句的连词,意为“像”。此时,主句的主干为“edges function(下巴边缘有功能)”。和前半句结合,整句话主干的转折关系是“虽然乌龟之前没牙齿,但是当代乌龟的下巴边缘有功能”。这个转折很明显是不合理的。应该如E所写,“虽然乌龟之前没牙齿,但是当代乌龟的下巴边缘充当了牙齿”。

E. 正确。function通过加as,成为及物动词短语,teeth做宾语。前后两句转折关系合理。

10.

The features of the floor of the Kasei Valles on Mars look just like those at the base of Antarctic ice streams, so it suggests that possibly it was flowing ice that carved the giant Martian channels previously attributed to cataclysmic floods.


(A) so it suggests that possibly it was flowing ice that

(B) a suggestion that flowing ice may have

(C) to suggest flowing ice as possibly having

(D) suggesting that flowing ice may have

(E) which is suggestive of flowing ice having possibly


解析:

A. it应当指代一个单数名词,但整句话没有合理的单数名词可以指代。

B. 逗号后直接一个名词+定语,说明此名词为同位语,需要同位前面一个名词或者动作。但前面并没有哪个名词或者动作可以称为“suggestion(建议)”。

C. to suggest...做主句的目的状语,修饰look like的目的,但我们不能说“为了表明一件事,一个地方的特点长得像另一个地方的特点”,语意有误。

D. 正确。suggesting...做伴随状语,修饰“look like”。表明一个地方的特点长得像另一个地方的特点这件事带来的一个结果。

E. which引导定语从句,修饰名词,但前面没有合理的修饰对象。


11.

The army cutworm moth is a critical source of fat for as many as a third of Yellowstone National Park's grizzly bears; they overturn rocks to find them, as many as 40,000 per bear in a single day.


(A) bears; they overturn rocks to find them, as many as

(B) bears; overturning rocks to find the insects, up to

(C) bears, overturning rocks to find them, as many as

(D) bears, and they overturn rocks to find them, up to

(E) bears, which overturn rocks to find the insects, as many as


解析:

A. 同一句话中的代词应该指同一个东西。they指代bears,合理;但them也指代bears就不合理了,我们不能说“熊翻开石头去找熊”。

B. 分号的作用和句号一样,需要连接两个独立的完整句。此选项中,分号后面没有完整句。

C. them指代问题同A。

D. them指代问题同A。

E. 正确。


12.

Blaming its recent troubles on a widening recession and slow rate of technology spending, the computer company announced that it would cut 10 percent of its workforce--more than 2,000 jobs--and expected to report a loss in its third quarter.


(A) company announced that it would cut 10 percent of its workforce--more than 2,000 jobs--and expected to report a

(B) company announced that there would be a cut--10 percent of its workforce, which was more than 2,000 jobs--and expected a reported

(C) company announced the cutting of its workforce by 10 percent, more than 2,000 jobs, and it expected a reported

(D) company's announcement included the cutting of its workforce by 10 percent, or more than 2,000 jobs, and expecting to report a

(E) company's announcement included cutting its workforce--which is more than 2,000 jobs--and expecting there to be a reported


解析:

A. 正确。

B. announce身后的宾语从句的主干为“there would be a cut(这里将有一个减少)”。

there be句型我们可以看作是have的被动。比如说,主动语态里我们说“I have a book.(我有一本书)”,但被动语态我们并不会说“The book is haven.”这个时候,我们使用there be句型即可——There is a book.(这里有一本书),表示我们并不知道这本书是谁的,只是这里放着一本书。

所以,和A里宾语从句的主干相比,A强调“it would cut workforce(公司将会减少职位)”;而B强调“这里将有一个减少”。相比之下,既然是公司宣布事情,强调公司将会怎么做更合理,而不是仅仅强调这里有个减少。

C. and身后跟了完整句,描述的是公司做的第二件事,抽主干为“it expected a loss(公司期待一个损失)”;A中,第二件事的主干为“it expected to report a loss(公司会报道一个损失。注:此时的expect to是助动词,真正的谓语是report)”。相比之下,公司要“报道”一个损失更合理,而不是“期待”一个损失。

D. 句首的blaming...是伴随状语,其逻辑主语与主句主语一致。此选项中,主句主语是“announcement”,成了“宣言去责备”。但逻辑上应该是“company(公司)”发出blame这个动作。

E. 逻辑主语为announcement错误,同D。 


13.

The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.


(A) The ability of scientists to provide models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions, have become ever more accurate.

(B) The ability of scientists has become ever more accurate in providing models of the atmosphere's complex responses to changing conditions, such as seasonal and daily cycles or different planetary conjunctions.

(C) Scientists have become able to provide ever more accurate models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions.

(D) Scientists have become ever more accurate in their ability for providing models of the atmosphere's complex responses to changing conditions, like seasonal and daily cycles or different planetary conjunctions.

(E) Scientists' ability to provide models of the atmosphere's complex responses to such changing conditions as seasonal and daily cycles or different planetary conjunctions have become ever more accurate. 


解析:

A. 整句话主语为ability,谓语为have,主谓不一致,错误。

B. 整句话抽主干为:the ability(主)has become(谓)accurate(补),意为“能力变得准确”。但我们只能说能力大能力小,不能用“准确”来形容能力。

C. 正确。整句话抽主干为:scientists have become able to provide model.(注:be able to为助动词,真正的谓语动词是provide,划成分时,将“be able to provide”划成一个大谓语即可。)accurate修饰model,意为“准确的模型”,合理。

D. 整句话抽主干为:scientists(主)have become(谓)accurate(补),意为“科学家变得准确”。但很明显我们不能说“人”变得准确。

E. 整句话抽主干为: ability have become accurate.主谓不一致错误同A;逻辑不合理错误同B。

14.

The eyes of the elephant seal adapt to darkness more quickly than any other animal yet tested, thus allowing it to hunt efficiently under the gloomy conditions at its feeding depth of between 300 and 700 meters.


(A) The eyes of the elephant seal adapt to darkness more quickly than any other animal yet tested, thus allowing it

(B) The eyes of the elephant seal adapt to darkness more quickly than does any other animal yet tested, allowing them

(C) The eyes of the elephant seal adapt to darkness more quickly than do those of any other animal yet tested, allowing it

(D) Because they adapt to darkness more quickly than any other animal yet tested, the eyes of the elephant seal allow it

(E) Because the eyes of the elephant seal adapt to darkness more quickly than do those of any other animal yet tested, it allows them


解析:

A. than前后的比较对象是“the eyes of elephant seal”和“any other animal”,即“眼睛”和“动物”在比较,比较对象有误。逻辑上只能是“眼睛”和“眼睛”比,或者“动物”和“动物”比。

B. 比较对象错误同A。

C. 正确。比较对象为“海象的眼睛”和“其他动物的眼睛”。those指代eyes。

D. they指代eyes,此时比较对象有误,同A。

E. it指代elephant seal,them指代eyes。此时主句的字面意思为“海象允许眼睛去有效地捕猎”,但逻辑上应该是“眼睛允许海象去有效地捕猎”。


15.

The widely accepted big-bang theory holds that the universe began in an explosive instant 10 to 20 billion years ago and has been expanding ever since.


(A)  that the universe began in an explosive instant 10 to 20 billion years ago and has been expanding

(B) that the universe had begun in an explosive instant 10 to 20 billion years ago and had been expanding

(C) that the beginning of the universe was an explosive instant 10 to 20 billion years ago that has expanded

(D) the beginning of the universe to have been an explosive instant 10 to 20 billion years ago that is expanding

(E) the universe to have begun in an explosive instant 10 to 20 billion years ago and has been expanding


解析:

A. 正确。

B. A和B成分一样,但时态有差异。结尾的ever since是“到现在为止”的意思,所以时态不能用过去完成时,而应该用现在完成时。

C. 宾语从句里的主干为:the beginning(主) was(谓)an instant(补),意为“开始是瞬间”。A中宾语从句表达的字面意思为“宇宙开始于一个瞬间”,相比之下A更合理。我们不能说“开始”的特点是一个瞬间,只能说某物从某个瞬间开始。

D. 此选项中,不再是从句承担宾语的成分,而是“the beginning”这个名词充当宾语,此时选项的主干的字面意思为“理论认为了一个开端”,但逻辑上应该是“理论认为了一件事”。

E. 选项的字面意思为“理论认为了一个宇宙”,语意有误。

16.

Certain pesticides can become ineffective if used repeatedly in the same place: one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.


(A) Certain pesticides can become ineffective if used repeatedly in the same place: one reason is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.

(B) If used repeatedly in the same place, one reason that certain pesticides can become ineffective is suggested by the finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals.

(C) If used repeatedly in the same place, one reason certain pesticides can become ineffective is suggested by the finding that much larger populations of pesticide-degrading microbes are found in soils with a relatively long history of pesticide use than those that are free of such chemicals.

(D) The finding that there are much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in soils that are free of such chemicals is suggestive of one reason, if used repeatedly in the same place, certain pesticides can become ineffective.

(E) The finding of much larger populations of pesticide-degrading microbes in soils with a relatively long history of pesticide use than in those that are free of such chemicals suggests one reason certain pesticides can become ineffective if used repeatedly in the same place.


解析:

A. 正确。

B. If used…是“从属连词+done”做伴随状语,其逻辑主语与主句主语一致。我们将主语代入:one reason is used…(理由被重复使用),语意有误。逻辑上应该是“杀虫剂被重复使用”。

C. used逻辑主语为reason,语意有误同B。

D. 整句话出现了两个主句“the finding is suggestive”和“pesticides can become ineffective”,但没有连词连接,属于语法错误。

E. finding身后是of结构的定语修饰,其字面意思为“数量所拥有的发现”,但我们应该用像A中的同位语从句,解释finding的内容是“这里有更多的数量”这样一件事情。所以此选项语意有误。

17.

In an effort to reduce the number of fires started by cigarettes, a major tobacco company is test-marketing a cigarette in which thin layers of extra paper are used to decrease the amount of oxygen entering the cigarette, thereby slowing the rate at which it burns and lowering the heat it generates.


(A) in which thin layers of extra paper are used to decrease the amount of oxygen entering the cigarette, thereby slowing

(B) in which they use thin layers of extra paper in decreasing the amount of oxygen entering the cigarette, which slows

(C) that uses thin layers of extra paper to decrease the amount of oxygen when it enters the cigarette, thereby slowing

(D) for which thin layers of extra paper are used to decrease the amount of oxygen that enters the cigarette, and thereby slowing

(E) using thin layers of extra paper in decreasing the amount of oxygen entering the cigarette, which slows


解析:

A. 正确。

B. they在整句中没有合理的指代对象,错误。

C. 先行词cigarette在其身后的定语从句中做主语,主动发出了use这个动作。但逻辑上应该是制烟公司或者制烟人使用thin layers去减少氧气数量,不能是“香烟”使用thin layer。

D. and身后出现了slowing,但身前并没有合理的并列对象,语法有误。

E. using的主语是cigarette,语意有误同C。

18.

Whereas the honeybee’s stinger is heavily barbed and cannot be retracted from the skin, because the yellow jacket has a comparatively smooth stinger, it is therefore able to be pulled out and used again.

(A) because the yellow jacket has a comparatively smooth stinger, it is therefore able to be pulled out and used

(B) the comparative smoothness of the yellow jacket’s stinger allows them to pull it out and then can therefore use it

(C) the yellow jacket’s stinger is comparatively smooth, and can therefore be pulled out and used

(D) in comparison, the yellow jacket’s stinger is smooth, and thus able to be pulled out and used

(E) in comparison, the yellow jacket has a smooth stinger, thus allowing it to be pulled out and used


解析:

A. because引导的原因状语从句的主干为“yellow jacket has a stinger(黄蜂有针)”,其修饰的主句的主干为“it is able to be pulled out and used again(针可以被拔出来并且再次使用)”。此时,整句话的字面意思为“因为黄蜂有针,所以针能被拔出来并再次使用”。因果关系不合理。应该是“因为针很顺滑,所以针能被拔出来并再次使用”。

B. them在整句中没有合理的指代对象。

C. 正确。

D. whereas本身就是表对比的连词,之后再加“in comparison”表对比,赘余。

E. whereas和in comparison重复,错误同D。


19.

Like the grassy fields and old pastures that the upland sandpiper needs for feeding and nesting when it returns in May after wintering in the Argentine Pampas, the sandpipers vanishing in the northeastern United States is a result of residential and industrial development and of changes in farming practices.


(A) the sandpipers vanishing in the northeastern United States is a result of residential and industrial development and of changes in

(B) the bird itself is vanishing in the northeastern United States as a result of residential and industrial development and of changes in

(C) that the birds themselves are vanishing in the northeastern United States is due to residential and industrial development and changes to

(D) in the northeastern United States, sandpipers’ vanishing is due to residential and industrial development and to changes in

(E) in the northeastern United States, the sandpipers’ vanishing, a result of residential and industrial development and changing


解析:

A. 主句的主干拎出来为:the sandpipers(主) is(谓) a result(补),意为“鸟是一个结果”,很明显语意不通。

B. 正确。对比对象是“草场”和“鸟”,对比的事情是“正在消失”,合理。

C. like做介词表比较,要求其身后的名词和主句的主语可比。此选项中,like身后的名词是“草场”,但主句主语是一个从句,即“鸟正在消失”这件事。我们不能拿一个名词和一件事情做比较。

D. 主句主语是vanishing(消失),拿“草场”和“消失”进行比较也是不合理的。

E. 比较对象不合理同D;且整句话没有谓语动词。


20.

The ancient Anasazi harvested such native desert vegetation as the purple-flowered bee plant, what they now commonly call wild spinach in northern Arizona and other parts of the southwestern United States.


(A) what they now commonly call

(B) a plant that they now commonly call

(C) now commonly called

(D) and is now commonly called

(E) which it is now commonly called


解析:

A. what=something that,代入后:what they now commonly call wild spinach = something that they now commonly call wild spinach,相当于名词something做同位语,同位前面的plant,然后加一个定语从句。定语从句中,they如果指代前面出现的“The ancient Anasazi”,语意不合理。因为这帮人是一群已经不存在的古人,但what身后是说“他们现在称其为wild spinach”,不可能是古人在现在发出call这个动作。此选项有语意错误。

B. they指代有误同A。

C. 正确。划线部分是修饰plant的定语从句。

D. is called和前面的harvested并列,字面意思变成“人被称作wild spinach”,但应该是这些植物被称为wild spinach。

E. which引导定语从句,身后应该给先行词留有位置。但此选项中的which身后不缺成分,无法构成定语从句,语法有误。

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