SAT语法练习题（二）含答案及解析

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6. In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the

organism's trying to metabolize, or render harmless. the chemical that is irritating it.

(A) trying to metabolize, or render harmless, the chemical that is irritating it

(B) trying that it metabolize, or render harmless, the . chemical irritant

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(C) attempt to try to metabolize, or render harmless, such a chemical irritant

(D) attempt to try and metabolize, or render harmless, the chemical irritating it

(E) attempt to metabolize, or render harmless, the chemical irritant

7. Dr. Hakuta's research among Hispanic children in the United States indicates that the more the children

use both Spanish and English, their intellectual advantage is greater in skills underlying reading ability and

nonverbal logic.

(A) their intellectual advantage is greater in skills underlying reading ability and nonverbal logic

(B) their intellectual advantage is the greater in skills underlaying reading ability and nonverbal logic

(C) the greater their intellectual advantage in skills underlying reading ability and nonverbal logic

(D) in skills that underlay reading ability and nonverbal logic, their intellectual advantage is the greater

(E) in skills underlying reading ability and nonverbal logic, the greater intellectual advantage is theirs

8. Lacking information about energy use, people tend to overestimate the amount of energy used by

equipment. such as lights, that are visible and must be turned on and off and underestimate that used by

unobtrusive equipment, such as water heaters.

(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that

(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when

(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when

(D) visible equipment, such as lights, that must be turned on and off and underestimate that

(E) visible equipment, such as lights, that must be turned on and off and underestimate it when

9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that they

believe is a type previously unknown to science.

(A) that they believe is

(B) that they believe it to be

(C) they believe that it is of

(D) they believe that is

(E) they believe to be of

10. However much United States voters may agree that there is waste in government and that the government

as a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimal

state.

(A) However much United States voters may agree that

(B) Despite the agreement among United States voters to the fact

(C) Although United States voters agree

(D) Even though United States voters may agree

(E) There is agreement among United States voters that

Answer to Question 6

Although an "-ing" verb such as trying can sometimes be used as a noun, the phrase the organism's trying to

metabolize in A is unidiomatic because trying is used as the object of organism's. In B, trying that it

metabolize is ungrammatical. The noun attempt could follow organism's; also, it would parallel the noun

enzymes, and parallelism is needed here because the sentence uses the linking verb are to equate enzymes

and attempt. In C and D, however, attempt to try is redundant. Choice E, which says attempt to metabolize, is

best. The phrase the chemical irritant is also the most concise and precise conclusion for the sentence

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because it clearly refers to the dioxin mentioned earlier.

Answer to Question 7

The best choice is C. The phrase the more the children should be completed by a parallel phrase that begins

with a comparative adjective and a noun phrase, as in the greater their... advantage. Only C correctly

completes the structure with a parallel phrase. Choices A. B, D, and E present structures that are unwieldy and

awkward in addition to being nonparallel, and that state the relationship between language use and skills

development less clearly than C does. Also, underlaying in B and underlay in D are incorrect; the meaning of

this sentence requires the present participle of "underlie," underlying, as a modifier of skills.

Answer to Question 8

Choices A and B incorrectly use the plural verb are with the singular noun equipment. In B, C, and E, when

used by does not parallel amount... used by and nonsensically suggests that the people are used by the

equipment. D, the best choice, correctly parallels the amount... used by with that used by, in which that is the

pronoun substitute for amount. Moreover, D solves the agreement problem of A and B by omitting the to be verb

used with visible and placing visible before equipment', the phrase visible equipment is also parallel with

unobtrusive equipment.

Answer to Question 9

Choice E is best. The pronoun that in A and B should be deleted, since the pronoun one is sufficient to introduce

the modifier and the sentence is more fluid without that. In B and C, it and that it are intrusive and

ungrammatical: the idiom is "believe x to be y." In the context of this sentence, the infinitive to be is more

appropriate than the limited present-tense is in referring to an event that occurred long ago but has been

discovered only recently. Finally, A, B, and D lack o/and so illogically equate this particular explosion with the

whole class of explosions to which it belongs: it is not a type but possibly one of a type.

Answer to Question 10

A is the best choice. Choices B, C, and D incorrectly omit that after agree; that is needed to create the parallel

construction agree that there is waste . . . and that the government... spends. Choice E, though it retains

that, is grammatically incorrect: because E starts with an independent rather than a subordinate clause and

separates its two independent clauses with a comma, it creates a run-on sentence with no logical connection

established between the halves. In B, the agreement ... to the fact is unidiomatic, and B, C, and E alter the

sense of the original sentence by saying that voters agree rather than that they may agree.