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TOEFL Directory > TOEFL writing > TOEFL Reading Class Unit 2_Passage 16_Question 166-176
TOEFL Reading Class Unit 2_Passage 16_Question 166-176
You have about 15 minutes to finish this passage.
First,use about 3-4 minutes to read the passage, try to understand the main idea of this passage.
Don't read it so slowly or try to remember all details.You need to do "fast reading",and "scan" the passage.
Second, read questions 1-11, and with questions you go back the passage again and look for correct answers.
Question 166-176
Passge 16
It is in search of adequate food supplies that cetaceans, marine mammals such as whales and dolphins, travel the oceans. They live in a world that is largely hidden from humans. Yet their range is three times as large as ours, since oceans occupy about three-quarters of the Earth's surface. They travel through well-marked ocean zones, each with its own characteristic marine life. They glide through the water, periodically rising to the surface to breathe. The sea may be raging but cetaceans are untroubled by the greatest storms; indeed they are more at home in rough than in calm seas.
Indirectly, however, their life is greatly influenced by wind. The eastward rotation of the Earth produces the prevailing trade winds, blowing east to west at the equator. These winds drag the surface waters and all they contain in a westerly direction. Warmed by its passage through the tropics, the wind-driven water is deflected against the westward continents, turning southwest in the Southern Hemisphere and northwest in the Northern Hemisphere.
In the Southern Hemisphere, the warm flow of tropical water under the west-going equatorial trade wind produces a genial climate along the eastern shores of Australia, South America, and South Africa. But there is open ocean to the south. Here the current is driven eastward unimpeded by land before the almost incessant westerly gales of this zone. The huge mass of water moves fast, chilled by water from the Antarctic Region, but laden with masses of plankton.
This cold, swift current is split when it strikes the southwestern extremities of the three southern continents. The northern portion of this water is diverted by the southwest coast of South America to sweep northward toward the equator. Known as the Humboldt Current, this current is rich in plankton on which cetaceans feed. Part of this same cool eastward-flowing current, enriched with water from higher latitudes, is similarly diverted north along the southwest coast of South Africa. This is the Benguela Current, where many cetaceans come to feed.
166. The passage answers which of the following questions?
a) What is the main difference between cetaceans and other marine life?
b) How far do most cetaceans travel in a year?
c) How often do cetaceans need to breathe?
d) What winds and ocean currents affect cetaceans?
167.
168. The word each in the passage refers to a
a) cetacean
b) surface
c) range
d) zone
169. The word prevailing in the passage is closest in meaning to
a) arctic
b) blowing
c) dominant
d) energetic
170. Which diagram best matches the description in paragraph 2 of the water flow caused by the trade winds?
171. What do paragraphs 3 and 4 primarily discuss?
a) The water currents in the Southern Hemisphere
b) The trade winds in the Southern Hemisphere
c) The three continents in the Southern Hemisphere
d) The large area of open ocean in the Southern Hemisphere
172. The word laden in the passage is closest in meaning to
a) balanced
b) filled
c) touched
d) wrapped
173. The word split in the passage is closest in meaning to
a) stopped
b) divided
c) opened
d) surrounded
174. The following sentence can be added to paragraph 2.
a) In the latter, the land masses that almost enclose the Arctic
b) Ocean in the north obstruct and divert the wind as it swings to
c) the northeast and circles south, cooled by the flow of cold water
d) from the icefields of the North Pole.
Where would it best fit in
paragraph 2 ?
Ⓐ Indirectly, however, their life is greatly influenced by wind. Ⓑ The eastward rotation of the Earth produces the prevailing trade winds, blowing east to west at the equator. Ⓒ These winds drag the surface waters and all they contain in a westerly direction. Ⓓ Warmed by its passage through the tropics, the wind-driven water is deflected against the westward continents, turning southwest in the Southern Hemisphere and northwest in the Northern Hemisphere. Ⓔ
175.
176.
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