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