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OG13新sc错题 o(╯□╰)o 改错完毕 发现全错指代上了。。
7. The intricate structure of the compound insect eye, havinghundreds of miniature eyes called ommatidia, help explain why scientists haveassumed that it evolved independently of the vertebrate eye. (A)having hundreds of miniature eyes called ommatidia, help explain why scientists have assumed that it (B) having hundreds of miniature eyes that are called ommatidia,helps explain why scientists have assumed that they (C)with its hundreds of miniature eyes that are called ommatidia, helps explain scientists' assuming that they (D)with its hundreds of miniature eyes called ommatidia, help explain scientists' assuming that it (E) with its hundreds of miniature eyescalled ommatidia, helps explain why scientists have assumed that it 97.Some anthropologists believe that the genetic homogeneity evident in theworld's people is the result of a "population bottleneck"—at sometime in the past our ancestors suffered an event, greatly reducing theirnumbers and thus our genetic variation. (A) at some time in the past our ancestors suffered an event,greatly reducing their numbers (B) thatat some time in the past our ancestors suffered an event that greatly reducedtheir numbers (C)that some time in the past ourancestors suffered an event so that their numbers were greatly reduced, (D)some time in the past our ancestors sufferedan event from which their numbers were greatly reduced (E)some time in the past, that our ancestors suffered an event so as to reduce their numbers greatly, The omission of that after the dash makes the function of the finalclause unclear.? The structure makes that clause appear to be an awkward andrhetorically puzzling separate assertion that the writer has appended to theprior claim about what the anthropologists believe. The agent or cause of reducingis unclear.
107. While it costs about the same torun nuclear plants as other types of power plants, it is the fixed costs that stemfrom building nuclear plants that makes it more expensive for them to generateelectricity. (A)While it costs about the same to runnuclear plants as other types of power plants,it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generateelectricity. (B) While the cost of running nuclearplants is about the same as forother types of power plants, the fixed costs that stem from building nuclearplants make the electricity theygenerate more expensive. (C)Even though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed coststhat stem from building nuclear plants that makes the electricity they generate moreexpensive. (D) It costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive,stemming from the fixed costs of building nuclear plants. (E)The cost of running nuclear plants is about the same as other types of powerplants, but the electricity theygenerate is made more expensive becauseof the fixed costs stemming from building nuclear plants. The emphatic construction it is X that does Y (as in the phrase it is Jane who knows theanswer) should be used onlywhen there is a compelling reason to emphasize the doer of the action.In this sentence, the emphatic construction is used without good reason.
D:The preposition for is redundant incomparing the two objects of run. Since it is not clean what stemming... refersto, this is a dangling modifier.
114.Starfish, with anywhere from five toeight arms, have astrong regenerative ability, and if one arm is lost it quickly replaces it,sometimes by the animal overcompensating and growing an extra one or two. (A)one arm is lost it quickly replacesit, sometimes by the animalovercompensating and (B) one arm is lost it is quickly replaced, with the animalsometimes overcompensating and (C)they lose one arm they quickly replace it, sometimes by the animal overcompensating, (D)they lose one arm they are quickly replaced, with the animal sometimes overcompensating, (E) they lose one arm it is quickly replaced, sometimes with theanimal overcompensating, In a conditional sentence if X, (then) Y, rhetorical flow is enhanced by the two clausessharing the same structure. If oneclause is passive, the other should be passive; if one clause is active, theother should be active, too.
The conditional clause has an active verb, while the result clause has a passive verb.The logical connection between overcompensating and growing is unclear.
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