[单项选择]One of the differences between the Pacific Ocean and the Indian Ocean is that the former has（）waves.
A. largest
B. large
C. larger
D. the largest

[单项选择]One of the key differences between Chinese and American managers’ professional networks is

[单项选择]An image taken of the Pacific Ocean last September is astonishing. Made using data collected from satellites monitored by NASA’s Jet Propulsion Laboratory in Pasadena, California, the picture shows the surface level of the Pacific as clearly as a yardstick lying across a lumpy bed. One sample of water--with a volume 30 times that of all the Great Lakes--is white, indicating that it is as much as 13 inches higher than its normal level.
El Nino experts are still striving to tackle the really big question: what is causing the abnormal El Nino behavior of the past two decades Some said because global warming accelerates the pace of E1 Nino formation and reinforces each event. Supporters of global warming as El Nino instigator include Kevin Trenberth, a climate analyst with the National Center for Atmospheric Research in Boulder, Colorado. "There’s evidence that global warming didn’t have much impact until 1979, but now it’s beginning to break through," he says.

A. fairly reassuring
B. very bleak
C. rather shocking
D. quite exceptional

[单项选择]

The Pacific Ocean covers more than 166 million square kilometers (more than 64 million square miles) --about one-third of the earth’s surface. The area of the Pacific is greater than that of all of the continents combined, and it makes up nearly half of the area covered by the earth’s oceans.
The Pacific is not only the largest ocean but also the world’s oldest and deepest, with an average depth of 4,280 meters (14,040 feet). Most of the geologic activity of the Pacific occurs around its edges. In fact, the so-called Pacific Ring of Fire contains more than 80 percent of the earth’s active volcanoes and most of its earthquake activity.
The Pacific was given its name because of the tranquillity(安静) of its waters, although it is occasionally swept by typhoons, and a number of strong currents circulate beneath the surface. The influence of the icy Antarctic continent and the smaller ratio of land to sea lowers water temperatures in the southern
A. geography of the Pacific Ocean
B. commercial role of the Pacific Ocean
C. its origin of the name
D. general introduction of the Pacific Ocean

[单项选择]

Passage 1
The Pacific Ocean covers more than 166 million square kilometers (more than 64 million square miles) --about one-third of the earth’s surface. The area of the Pacific is greater than that of all of the continents combined, and it makes up nearly half of the area covered by the earth’s oceans.
The Pacific is not only the largest ocean but also the world’s oldest and deepest, with an average depth of 4,280 meters (14,040 feet). Most of the geologic activity of the Pacific occurs around its edges. In fact, the so-called Pacific Ring of Fire contains more than 80 percent of the earth’s active volcanoes and most of its earthquake activity.
The Pacific was given its name because of the tranquillity(安静) of its waters, although it is occasionally swept by typhoons, and a number of strong currents circulate beneath the surface. The influence of the icy Antarctic continent and the smaller ratio of land to sea lowers
A. not only the largest ocean but also the world’s oldest and deepest
B. containing more than 80 percent of the earth’s active volcanoes and most of its earthquake activity
C. the still of its waters, although it is occasionally swept by typhoons, and a number of strong currents circulate beneath the surface
D. the influence of the icy Antarctic continent and the smaller ratio of land to sea