Có hai loại câu hỏi trong phần thi Cấu trúc câu của bài thi TOEFL® trên computer: hoàn thành câu và định dạng lỗi. Hơn nữa, hầu hết các bài thi TOEFL® đều có thể bao gồm đến 16 điểm văn phạm từ tính từ cho đến từ phụ. Các bạn càng thực hành nhiều bao nhiêu, điểm thi TOEFL® sẽ càng cao bấy nhiêu. Phần Cấu trúc câu giúp các bạn ôn lại hai loại câu hỏi này trong tất cả 16 điểm văn phạm về cấu trúc câu !
Đây là giải thích cho các câu trả lời trong bài tập này:
1. became
The first answer choice, she was , is incorrect since the sentence would be redundant with the inclusion of an additional subject ( she ). The second and third answer choices, and became and and she became , are ungrammatical in this context since the inclusion of and would form a subordinate clause. A subordinate clause cannot follow a relative clause.
2. developing (x)
Correction: development
A noun is needed here, not a verb.
3. A (x)
Correction: the
The definite article 'the' is needed before a superlative adjective.
4. an American pioneer
This question is testing you on appositives . This sentence needs a noun structure to rename the subject, Daniel Boone . The second answer choice has a verb. The third answer choice would require the addition of the relative pronoun who and the verb being changed to was to make it correct. The fourth answer choice is ungrammatical without the relative pronoun who .
5. interested (x)
Correction: interesting
A participial adjective ending in -ing is needed her, not -ed.
6. where
Correction: which or that
A subject must follow the relative pronoun where.
7. with (2) (x)
Correction: of
The preposition that follows the noun benefit(s) is of , not with .
8. twice as much
The first answer choice, twice more, means two more actions, and would not make sense in this context. The second choice would be correct if ' much 'was added at the end. The third answer choice has incorrect word order.
9. for existing (x)
Correction: to exist
In this context, an infinitive is needed after the phrase be (known). Another similar phrase, something/someone is known for (x) , would not make sense here.
10. equipments (x)
Correction: equipment
Equipment is an uncountable noun and does not take a plural -s.
11. its (x)
Correction: their
This question is testing you on subject-verb agreement. In this sentence, the singular verb its does not agree with the plural subject People .
12. as a whole (x)
Correction: on the whole
The phrase as a whole is used when something is considered as a group and not in parts. This phrase would not make sense in this context. A better choice here is the phrase on the whole , which means generally .
13. from (x)
Correction: as
The structure characterize (x) as (x) is used to describe something by stating its main qualities.
14. despite
Only the third answer choice, despite , is grammatical here. The first answer choice, however , would be acceptable if the sentence read, " The Bolivian Altiplano is cold, windy, and dry; however , a large number of people live there. " The second and fourth answer choices, because and as , would not make sense in this context since the sentence needs an adverbial to show a contrast, not a reason.
15. contains
Only the third person singular verb contains is grammatical here, as it's in the correct tense and agrees with the singular subject layer of air .
16. what causes the illness
A noun clause in needed here, and the correct structure in this context is subordinator + verb (+ rest of clause) . Only the second answer choice has this pattern.
17. on (x)
Correction: in
Since the core of the Earth is in the center of it, the preposition in is needed here, not on .
18. much faster than
A comparative adjective structure is needed here. The first answer choice would be grammatical if it read as fast as . The third answer choice is a superlative and not possible in a comparison between two animals. The fourth answer choice would need ' than ' at the end to be grammatical.
19. the United States attempts
The first answer choice is incorrect since a comma is not needed after the subject. The second and third answer choices would create another subordinate clause.
20. discoverer (x)
Correction: discovery
The noun needed here is discovery , not discoverer (which refers to a person).
VnVista Forum > Góc kiến thức > Câu lạc bộ ngoại ngữ > Khám phá thế giới tiếng Anh - English world > Tài liệu luyện thi TOEFL, IETLS
Dec 5 2005, 03:46 PM
