文勇的新托福黄金&ccedil

increasingspeed 7 1

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Unformatted text preview: Complete the table below by indicating which features of fishes are associated in the passage with reducing water resistance and which are associated with increasing thrust. This question is worth 3 points. REDUCING WATER RESISTANCE ● ● ● INCREASING THRUST ● ● Features of Fishes ○The absence of scales from most of the body ○The ability to take advantage of eddies ○The ability to feed and reproduce while swimming ○Eyes that do not protrude ○Fins that are stiff, narrow, and smooth ○The habit of swimming with the mouth open ○A high, narrow tail with swept­back tips 59 Mail@liuwenyong.com 在在在在在在 www.liuwenyong.com 在在在在在在在在在在在在在在在,在在在在在在在在在在 在在在在 1. ○ 2 This is a Vocabulary question. The word being tested is enhance. It is highlighted in the passage. The correct answer is choice 2, "improve." To enhance something means to "make it better." If something has been "improved," it has been made better. 2. ○2 This is a Reference question. The word being tested is they. It is highlighted in the passage. Choice 2, "fins," is the correct answer. This is a simple pronoun­referent item. The word they refers to something that lies flush with the body when not in use. This is true only of "fins." 3. ○ 4 This is a Rhetorical Purpose question. It asks why the author mentions that "Airplanes retract their landing gear while in flight." The phrase being tested is highlighted in the passage. The correct answer is choice 4, "To demonstrate a similarity in design between certain fishes and airplanes." The paragraph in which the highlighted phrase appears describes how certain fish use their fins. The highlighted phrase is used to provide a more familiar example (airplanes) of the principle involved to help the reader visualize how fins work. The paragraph does not discuss airplanes in any other context, so choices 2 and 3 are incorrect. Air and water resistance are not mentioned in this paragraph, so choice 1 is incorrect. 4. ○ 1 This is a Vocabulary question. The word being tested is sophisticated. It is high lighted in the passage. The correct answer is choice 1, "complex." If something is sophisticated, it is "not simple," so it must be "complex." 5. ○ 4 This is a Factual Information question asking for specific information that can be found in paragraph 4. The correct answer is choice 4, "reducing water resistance as they swim." The overall theme of the passage is how certain fish swim so efficiently. Paragraphs 1 and 2 make the general statement that "practically every aspect of the body form and function of these swimming 'machines' is adapted to enhance their ability to swim. Many of the adaptations of these fishes serve to reduce water resistance (drag)." Paragraph 4 explicitly states (emphasis added) that "Tunas, mackerels, and billfishes have even more sophisticated adaptations than these to improve their hydrodynamics. The long bill of marlins, sailfishes, and swordfish p...
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This note was uploaded on 09/17/2013 for the course LANGUAGE 13DL208 taught by Professor Wang during the Fall '13 term at East China Normal University.

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