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- 1 Tìm từ sai trong số các từ được gạch chân - Trình độ
2 TOEFL, Bài số 20
3 1. Some methods to prevent soil erosion are plowing parallel with the slopes of hills, to
4 plant trees on unproductive land, and rotating crops.
5 (A) Some
6 (B) to prevent
7 (C) are
8 (D) to plant
9 2. Chicago, is called the Windy City because of the winds coming down across the lake
10 from Canada, is never very hot in summer.
11 (A) Chicago, is called
12 (B) because of
13 (C) is
14 (D) never very
15 3. Disease is not as widespread than before because of better preventive medicine and
16 vastly improved nutrition.
17 (A) Disease
18 (B) than before
19 (C) better
20 (D) vastly
21 4. When scientists discovered how soap works, it became possible to do synthetic
22 detergents out of petroleum.
23 (A) discovered
24 (B) how
25 (C) it
26 (D) to do
27 5. Electric telegraph, invented in 1835 by Samuel Morse, was first used in 1844.
28 (A) Electric telegraph
29 (B) by Samuel Morse
30 (C) first
31 (D) used
32 6. Every scientist knows that gravity is the force that maintains the earth and the planets
33 in its orbits around the sun.
34 (A) knows
35 (B) that
36 (C) maintains
37 (D) its
38 7. After studying all the new materials, the student was able to rise his test score by
39 twenty-five points.
40 (A) After studying
41 (B) all the new
42 (C) was able
43 (D) rise
44 8. Mr Anderson used to jogging in the crisp morning air during the winter months, but
45 now he has stopped.
46 (A) jogging
- 1 (B) crisp morning
2 (C) during
3 (D) winter months
4 9. The tongue is the principle organ of taste, and is crucial for chewing, swallowed, and
5 speaking.
6 (A) principle
7 (B) of taste
8 (C) is
9 (D) swallowed
10 10. Clare Boothe Luce wrote and productioned her first play while she was in high
11 school.
12 (A) wrote
13 (B) productioned
14 (C) her
15 (D) play
16 11. Gamma globulin, a protein found in blood plasma, it is used to prevent such infectious
17 disease as measles and viral hepatitis.
18 (A) found in
19 (B) it is
20 (C) such
21 (D) as
22 12. The plants that they belong to the family of ferns are quite varied in their size and
23 structure.
24 (A) they
25 (B) belong
26 (C) are
27 (D) their
28 13. Vasco da Gama, accompanied by a large crew and a fleet of twenty ships, were trying
29 to establish Portuguese domination in Africa and India during the sixteenth century.
30 (A) by a large crew
31 (B) were
32 (C) to establish
33 (D) in Africa and India
34 14. Scientists had previously estimated that the Grand Canyon in Arizona is ten million
35 years old; but now, by using a more modern dating method, they agree that the age is
36 closer to six million years.
37 (A) previously
38 (B) is
39 (C) by using
40 (D) six million years
41 15. In 1950 it was naively predicted that eight or ten computer would be sufficient to
42 handle all of the scientific and business needs in the United States.
43 (A) In 1950
44 (B) naively
45 (C) eight or ten computer
46 (D) to handle
47 16. George Ellery Hale and his colleagues designed the two-hundred-inch telescope on
- 1 Mount Palomar study the structure of the universe.
2 (A) his
3 (B) two-hundred-inch
4 (C) on Mount Palomar
5 (D) study
6 17. There is about 600 schools in the United States that use the Montessori method to
7 encourage individual initiative.
8 (A) There is
9 (B) in the United States
10 (C) use
11 (D) to encourage
12 18. The General Agreement on Tariffs and Trades [GATT] is an international agreement
13 designing to increase trade among member nations.
14 (A) international
15 (B) designing
16 (C) among
17 (D) member nations
18 19. J. Edgar Hoover has served as director of the FBI from 1924 until his death in 1972.
19 (A) has served
20 (B) as director
21 (C) from
22 (D) his death
23 20. I put my new book of zoology here on the desk a few minutes ago, but I cannot seem
24 to find it.
25 (A) book of zoology
26 (B) the desk
27 (C) ago
28 (D) I cannot seem to find it
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