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下面是澳际教育为您精心提供的SAT语法练习题（5），从41题到50题，为不定项选择题，答案及解析在第二页，请独立完成后再参看答案。
41. 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. (A) was never applied, Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it (B) was never applied, there has been a requirement that Congress call a convention for consideration of possible amendments to the document when asked to do it formally (C) was never applied, whereby Congress is required to call a convention for considering possible amendments to the document when asked to do it formally (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 42. The current administration, being worried over some foreign trade barriers being removed and our exports failing to increase as a result of deep cuts in the value of the dollar, has formed a group to study ways to sharpen our competitiveness. 114 (A) being worried over some foreign trade barriers being removed and our exports failing (B) worrying over some foreign trade barriers being removed, also over the failure of our exports (C) worried about the removal of some foreign trade barriers and the failure of our exports (D) in that they were worried about the removal of some foreign trade barriers and also about the failure of our exports (E) because of its worry concerning the removal of some foreign trade barriers, also concerning the failure of our exports 43. In the minds of many people living in England, bore Australia was Australia, it was the antipodes, the opposite pole to civilization, an obscure and unimaginable place that was considered the end of the world. (A) bore Australia was Australia, it was the antipodes (B) bore there was Australia, it was the antipodes (C) it was the antipodes that was Australia (D) Australia was what was the antipodes (E) Australia was what had been known as the antipodes 44. Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy. (A) Using a Doppler ultrasound device, fetal heart-beats can be detected by the twelfth week of pregnancy. (B) Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device. (C) Detecting fetal heartbeats by the twelfth week of pregnancy, a physician can use a Doppler ultrasound device. (D) By the twelfth week of pregnancy, fetal heartbeats can be detected using a Doppler ultrasound device by a physician. (E) Using a Doppler ultrasound device, a physician can detect fetal heartbeats by the twelfth week of pregnancy. 45. Delighted by the reported earnings for the first quarter of the fiscal year, it was decided by the company manager to give her staff a raise. (A) it was decided by the company manager to give her staff a raise (B) the decision of the company manager was to give her staff a raise (C) the company manager decided to give her staff a raise (D) the staff was given a raise by the company manager (E) a raise was given to the staff by the company manager 115 46. A study commissioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement. (A) associated with other calves, they will require less medication and gain weight quicker than do (B) associated with other calves, they require less medication and gain weight quicker than (C) associate with other calves, they required less medication and will gain weight quicker than do (D) associate with other calves, they have required less medication and will gain weight more quickly than do (E) associate with other calves, they require less medication and gain weight more quickly than 47. Displays of the aurora borealis, or "northern lights," can heat the atmosphere over the arctic enough to affect the trajectories of ballistic missiles, induce electric currents that can cause blackouts in some areas and corrosion in north-south pipelines. (A) to affect the trajectories of ballistic missiles, induce (B) that the trajectories of ballistic missiles are affected, induce (C) that it affects the trajectories of ballistic missiles, induces (D) that the trajectories of ballistic missiles are affected and induces (E) to affect the trajectories of ballistic missiles and induce 48. The golden crab of the Gulf of Mexico has not been fished commercially in great numbers, primarily on account of living at great depths-- 2,500 to 3,000 feet down. (A) on account of living (B) on account of their living (C) because it lives (D) because of living (E) being they live 49. The cameras of the Voyager II spacecraft detected six small, previously unseen moons circling Uranus, which doubles to twelve the number of satellites now known as orbiting the distant planet (A) which doubles to twelve the number of satellites now known as orbiting (B) doubling to twelve the number of satellites now known to orbit (C) which doubles to twelve the number of satellites now known in orbit around (D) doubling to twelve the number of satellites now known as orbiting (E) which doubles to twelve the number of satellites now known that orbit 50. As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500. or legally blind if it were an adult with such vision. (A) As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision. (B) A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500, or legally blind as an adult (C) As a baby emerges from the darkness of the womb, its rudimentary sense of vision would be rated about 20/500; qualifying it to be legally blind if an adult (D) A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500; an adult with such vision would be deemed legally blind. (E) As a baby emerges from the darkness of the womb, its rudimentary sense of vision, which would deemed legally blind for an adult, would be rated about 20/500. Answer to Question 41 Choices A, B, C, and D contain tense errors (the use of was never applied with has been required in A, for example), unidiomatic expressions (call... for considering), and uses of a pronoun (it) with no noun rerent. By introducing the subordinating conjunction whereby, C and D produce sentence fragments. Only E, the best choice, corrects all of these problems. The predicate has never been applied rers to a span of time, from the writing of the Constitution to the present, rather than to a past event (as was does), and the phrase is required indicates that the provision still applies. The phrase call... to consider is idiomatic, and to do so can substitute grammatically for it. Answer to Question 42 Choice C is best because its phrasing is parallel and concise. A, D, and E begin with unnecessarily wordy phrases. Choice C also uses the idiomatic expression worried about rather than worried over (as in A) or worrying over (as in B); worried about is prerable when describing a condition rather than an action. Whereas C uses compact and parallel noun phrases such as the removal... and the failure ... , the other choices employ phrases that are wordy, awkward, or nonparallel. D is also flawed in that the plural pronoun they does not agree with the singular noun administration. Answer to Question 43 Choice A is best, for A alone makes clear that the land now known as Australia was considered the antipodes bore it was developed. In B, it has no logical rerent, because the previous clause describes a time when there was no Australia. Nor does it have a rerent in C: substituting Australia for it produces a nonsensical statement. D is wordy, with the unnecessary what was, and imprecise in suggesting that Australia was considered the antipodes after it became Australia. E similarly distorts the original meaning, and the past perfect had been is inconsistent with the past tense used to establish a time frame for the rest of the sentence. Answer to Question 44 Choice A presents a dangling modifier. The phrase beginning the sentence has no noun that it can logically modify and hence cannot fit anywhere in the sentence and make sense. Coming first, it modifies heartbeats, the nearest free noun in the main clause; that is, choice A says that the heartbeats are using the Doppler ultrasound device. Choice B contains the same main clause and dangling modifier, now at the end. Contrary to intent, the wording in choice C suggests that physicians can use a Doppler ultrasound device after they detect fetal heartbeats. In choice D the phrase using ... device should follow physician, the noun it modifies. Choice E is best. 164 Answer to Question 45 Grammatically, the participial phrase beginning delighted must modify the subject of the main clause. Because it is the manager who was delighted, choice C, in which the company manager appears as the subject, is the best answer. Choices A, B, D, and E create illogical statements by using it, the decision, the staff, and a raise, respectively, as the sentence subject. Use of the passive voice in A, D, and E produces unnecessary wordiness, as does the construction the decision of the company manager was to in B. Answer to Question 46 Choice E, the best answer, uses the adverbial phrase more quickly than to modify the verb phrase gain weight. In A, B, and C, quicker than is incorrect because an adjective should not be used to modify a verb phrase. E is also the only choice with consistent verb tenses. The first verb in the clauses introduced by showed that is exercise. A and B incorrectly compound that present tense verb with a past tense verb, associated. C and D correctly use associate, but C follows with the past tense required and D with the present perfect have required. Both C and D incorrectly conclude with the future tense will gain. Answer to Question 47 The use of the phrasing can heat... enough to affect in A and E is more idiomatic than the use of the subordinate clause beginning with that in B, C, and D. Also, B produces an illogical and ungrammatical statement by making induce parallel with the verb heat rather than with the appropriate form of the verb affect; C lacks agreement in using the singular pronoun it to rer to the plural noun displays; and D is faulty because induces cannot fit grammatically with any noun in the sentence. Choice A incorrectly separates the two infinitives to affect and [to] induce with a comma when it should compound them with and, as does E, the best choice. Answer to Question 48 As used in choices A, B, and D, the phrases on account of and because of are unidiomatic; because, which appears in C and E, is prerable here since because can introduce a complete subordinate clause explaining the reason why the golden crab has not been fished extensively. B and E also produce agreement errors by using the plural pronouns their and they to rer to the singular noun crab. Choice D, like A, fails to provide a noun or pronoun to perform the action of living, but even with its the phrases would be more awkward and less clear than it lives. C, which uses because and it as the singular subject of a clause, is the best choice. Answer to Question 49 The pronoun which should be used to rer to a previously mentioned noun, not to the idea expressed in an entire clause. In A, C, and E, which seems to rer to a vague concept involving the detection of moons, but there is no specific noun, such as detection, to which it can rer. Also in E, the use of the phrasing the number... now known that orbit is ungrammatical and unclear. B and D use the correct participial form, doubling, to modify the preceding clause, but D, like A, uses known as orbiting rather than known to orbit, a phrase that is more idiomatic in context. B, therore, is the best answer. Answer to Question 50 In choice A, it, the subject of the main clause, seems to rer to baby, the subject of the subordinate clause; thus, A seems to state that the newbom baby, rather than its sense of vision, would be rated 20/500. Similarly, choices B and 166 A, B, and D illogically suggest that the palace and temple clusters were architects and stonemasons. For the modification to be logical. Architects and stonemasons must immediately precede the Maya, the noun phrase it is meant to modify. A, B, and D also use the passive verb form were built, which produces unnecessary awkwardness and wordiness. E is awkwardly phrased and produces a sentence fragment, because the appositive noun phrase Architects and stonemasons cannot serve as the subject of were the Maya. C, the best answer, places the Maya immediately after its modifier and uses the active verb form built. SAT语法练习题及答案解析（5）SAT语法练习题及答案解析（5）下面是澳际教育为您精心提供的SAT语法练习题（5），从41题到50题，为不定项选择题，答案及解析在第二页，请独立完成后再参看答案。
41. 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. (A) was never applied, Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it (B) was never applied, there has been a requirement that Congress call a convention for consideration of possible amendments to the document when asked to do it formally (C) was never applied, whereby Congress is required to call a convention for considering possible amendments to the document when asked to do it formally (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 42. The current administration, being worried over some foreign trade barriers being removed and our exports failing to increase as a result of deep cuts in the value of the dollar, has formed a group to study ways to sharpen our competitiveness. 114 (A) being worried over some foreign trade barriers being removed and our exports failing (B) worrying over some foreign trade barriers being removed, also over the failure of our exports (C) worried about the removal of some foreign trade barriers and the failure of our exports (D) in that they were worried about the removal of some foreign trade barriers and also about the failure of our exports (E) because of its worry concerning the removal of some foreign trade barriers, also concerning the failure of our exports 43. In the minds of many people living in England, bore Australia was Australia, it was the antipodes, the opposite pole to civilization, an obscure and unimaginable place that was considered the end of the world. (A) bore Australia was Australia, it was the antipodes (B) bore there was Australia, it was the antipodes (C) it was the antipodes that was Australia (D) Australia was what was the antipodes (E) Australia was what had been known as the antipodes 44. Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy. (A) Using a Doppler ultrasound device, fetal heart-beats can be detected by the twelfth week of pregnancy. (B) Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device. (C) Detecting fetal heartbeats by the twelfth week of pregnancy, a physician can use a Doppler ultrasound device. (D) By the twelfth week of pregnancy, fetal heartbeats can be detected using a Doppler ultrasound device by a physician. (E) Using a Doppler ultrasound device, a physician can detect fetal heartbeats by the twelfth week of pregnancy. 45. Delighted by the reported earnings for the first quarter of the fiscal year, it was decided by the company manager to give her staff a raise. (A) it was decided by the company manager to give her staff a raise (B) the decision of the company manager was to give her staff a raise (C) the company manager decided to give her staff a raise (D) the staff was given a raise by the company manager (E) a raise was given to the staff by the company manager 115 46. A study commissioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement. (A) associated with other calves, they will require less medication and gain weight quicker than do (B) associated with other calves, they require less medication and gain weight quicker than (C) associate with other calves, they required less medication and will gain weight quicker than do (D) associate with other calves, they have required less medication and will gain weight more quickly than do (E) associate with other calves, they require less medication and gain weight more quickly than 47. Displays of the aurora borealis, or "northern lights," can heat the atmosphere over the arctic enough to affect the trajectories of ballistic missiles, induce electric currents that can cause blackouts in some areas and corrosion in north-south pipelines. (A) to affect the trajectories of ballistic missiles, induce (B) that the trajectories of ballistic missiles are affected, induce (C) that it affects the trajectories of ballistic missiles, induces (D) that the trajectories of ballistic missiles are affected and induces (E) to affect the trajectories of ballistic missiles and induce 48. The golden crab of the Gulf of Mexico has not been fished commercially in great numbers, primarily on account of living at great depths-- 2,500 to 3,000 feet down. (A) on account of living (B) on account of their living (C) because it lives (D) because of living (E) being they live 49. The cameras of the Voyager II spacecraft detected six small, previously unseen moons circling Uranus, which doubles to twelve the number of satellites now known as orbiting the distant planet (A) which doubles to twelve the number of satellites now known as orbiting (B) doubling to twelve the number of satellites now known to orbit (C) which doubles to twelve the number of satellites now known in orbit around (D) doubling to twelve the number of satellites now known as orbiting (E) which doubles to twelve the number of satellites now known that orbit 50. As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500. or legally blind if it were an adult with such vision. (A) As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision. (B) A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500, or legally blind as an adult (C) As a baby emerges from the darkness of the womb, its rudimentary sense of vision would be rated about 20/500; qualifying it to be legally blind if an adult (D) A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500; an adult with such vision would be deemed legally blind. (E) As a baby emerges from the darkness of the womb, its rudimentary sense of vision, which would deemed legally blind for an adult, would be rated about 20/500. 上12下共2页
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