比较结构-SC-OG:第21-30题 练习册详情

1

Traffic safety officials predict that drivers will be equally likely to exceed the proposed speed limit as the current one.

• equally likely to exceed the proposed speed limit as
• equally likely to exceed the proposed speed limit as they are
• equally likely that they will exceed the proposed speed limit as
• as likely that they will exceed the proposed speed limit as
• as likely to exceed the proposed speed limit as they are

9888人做过此题 平均耗时为3min56s 平均正确率为 42%

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2

Salt deposits and moisture threaten to destroy the Mohenjo-Daro excavation in Pakistan, the site of an ancient civilization that flourished at the same time as the civilizations in the Nile Delta and the river valleys of the Tigris and Euphrates.

• that flourished at the same time as the civilizations
• that had flourished at the same time as had the civilizations
• that flourished at the same time those had
• flourishing at the same time as those did
• flourishing at the same time as those were

9987人做过此题 平均耗时为11min3s 平均正确率为 70%

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3

Although appearing less appetizing than most of their round and red supermarket cousins, heirloom tomatoes, grown from seeds saved during the previous year—they are often green and striped, or have plenty of bumps and bruises—heirlooms are more flavorful and thus in increasing demand.

• Although appearing less appetizing than most of their round and red supermarket cousins, heirloom tomatoes, grown from seeds saved during the previous year
• Although heirloom tomatoes, grown from seeds saved during the previous year, appear less appetizing than most of their round and red supermarket cousins
• Although they appear less appetizing than most of their round and red supermarket cousins, heirloom tomatoes, grown from seeds saved during the previous year
• Grown from seeds saved during the previous year, heirloom tomatoes appear less appetizing than most of their round and red supermarket cousins
• Heirloom tomatoes, grown from seeds saved during the previous year, although they appear less appetizing than most of their round and red supermarket cousins

9934人做过此题 平均耗时为8min50s 平均正确率为 61%

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4

Some anthropologists believe that the genetic homogeneity evident in the world's people is the result of a "population bottleneck" -at some time in the past our ancestors suffered an event, greatly reducing their numbers and thus our genetic variation.

• at some time in the past our ancestors suffered an event, greatly reducing their numbers
• that at some time in the past our ancestors suffered an event that greatly reduced their numbers
• that some time in the past our ancestors suffered an event so that their numbers were greatly reduced,
• some time in the past our ancestors suffered an event from which their numbers were greatly reduced
• some time in the past, that our ancestors suffered an event so as to reduce their numbers greatly,

10000人做过此题 平均耗时为6min49s 平均正确率为 44%

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5

Digging in sediments in northern China, evidence has been gathered by scientists suggesting that complex life-forms emerged much earlier than they had previously thought.

• evidence has been gathered by scientists suggesting that complex life-forms emerged much earlier than they had
• evidence gathered by scientists suggests a much earlier emergence of complex life-forms than had been
• scientists have gathered evidence suggesting that complex life-forms emerged much earlier than
• scientists have gathered evidence that suggests a much earlier emergence of complex life-forms than that which was
• scientists have gathered evidence which suggests a much earlier emergence of complex life-forms than that

9970人做过此题 平均耗时为8min33s 平均正确率为 67%

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6

In 1979 lack of rain reduced India's rice production to about 41 million tons, nearly 25 percent less than those of the 1978 harvest.

• less than those of the 1978 harvest
• less than the 1978 harvest
• less than 1978
• fewer than 1978
• fewer than that of India's 1978 harvest

9980人做过此题 平均耗时为6min4s 平均正确率为 61%

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7

Manufacturers rate batteries in watt-hours; if they rate the watt-hour higher, the longer the battery can be expected to last.

• if they rate the watt-hour higher, the longer
• rating the watt-hour higher, it is that much longer
• the higher the watt-hour rating, the longer
• the higher the watt-hour rating, it is that much longer that
• when the watt-hour rating is higher, the longer it is

9907人做过此题 平均耗时为3min25s 平均正确率为 44%

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8

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.

• 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.
• 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.
• 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.
• 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.
• 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.

9900人做过此题 平均耗时为36min55s 平均正确率为 52%

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9

Unlike auto insurance, the frequency of claims does not affect the premiums for personal property coverage, but if the insurance company is able to prove excessive loss due to owner negligence, it may decline to renew the policy.

• Unlike auto insurance, the frequency of claims does not affect the premiums for personal property coverage
• Unlike with auto insurance, the frequency of claims do not affect the premiums for personal property coverage
• Unlike the frequency of claims for auto insurance, the premiums for personal property coverage are not affected by the frequency of claims
• Unlike the premiums for auto insurance, the premiums for personal property coverage are not affected by the frequency of claims
• Unlike with the premiums for auto insurance, the premiums for personal property coverage is not affected by the frequency of claims

9794人做过此题 平均耗时为20min44s 平均正确率为 48%

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10

The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's.

• extinction; its numbers are now five times greater than
• extinction; its numbers are now five times more than
• extinction, their numbers now fivefold what they were
• extinction, now with fivefold the numbers they had
• extinction, now with numbers five times greater than

9978人做过此题 平均耗时为8min6s 平均正确率为 53%

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