[填空题]From the top of Temple IV, dense jungle canopy(遮篷) spreads to the horizon in every direction. Some 215 feet below lies Tikal, the greatest of the Mayan cities, much of it still {{U}} (36) {{/U}} by trees that have swallowed Temple IV up to the base of its {{U}} (37) {{/U}} . {{U}} (38) {{/U}} of archaeologists have worked to excavate (挖掘) this vast city since a Spanish governor rediscovered it in 1848. They’re still at work today; clearing trees from nearby temples, searching for {{U}} (39) {{/U}} to how the ancient Maya lived and what caused them to {{U}} (40) {{/U}} their great cities six centuries before the Spanish conquest. New inscriptions, villages, even {{U}} (41) {{/U}} cities are being discovered every year, {{U}} (42) {{/U}} great excitement among archaeologists. The latest and most {{U}} (43) {{/U}} find was announced on Sept. 8: the discovery of a nearly intact 170-room palace buried at Cancuen, 70 miles south of Tikal. {{U}} (44) {{/U}} It’s so large, in

[填空题]From the top of Temple IV, dense jungle canopy(遮篷) spreads to the horizon in every direction. Some 215 feet below lies Tikal, the greatest of the Mayan cities, much of it still {{U}} (36) {{/U}} by trees that have swallowed Temple IV up to the base of its {{U}} (37) {{/U}} . {{U}} (38) {{/U}} of archaeologists have worked to excavate (挖掘) this vast city since a Spanish governor rediscovered it in 1848. They’re still at work today; clearing trees from nearby temples, searching for {{U}} (39) {{/U}} to how the ancient Maya lived and what caused them to {{U}} (40) {{/U}} their great cities six centuries before the Spanish conquest. New inscriptions, villages, even {{U}} (41) {{/U}} cities are being discovered every year, {{U}} (42) {{/U}} great excitement among archaeologists. The latest and most {{U}} (43) {{/U}} find was announced on Sept. 8: the discovery of a nearly intact 170-room palace buried at Cancuen, 70 miles south of Tikal. {{U}} (44) {{/U}} It’s so large, in

[填空题]The giant trees above the dense canopy layer(树冠层) cannot enjoy sunlight.

[单项选择]The outlook from the top of the mountain is breathtaking.（　）
A. view
B. sight
C. look
D. point

[单项选择]The view from the top of the luxurious Morgan Centre down onto Beijing’s Olympic Green is breath-taking, There, far below, lies the stunning" bird nest" Olympic Stadium. Right next to it is the equally mesmerizing National Aquatics Center, known as the Water Cube. The Aquatics Center poses one critical question: where will all the water to fill this bold but massive architectural masterpiece" and to supply the Games" come from
One can drive a hundred miles in any direction from Beijing and never cross a healthy river. Heading north to Shanxi province, one passes river after river that has dried up. And in 80 percent of those Shanxi rivers that ale still flowing, water quality is" unfit for human contact" or for agricultural or industrial use. As you drive south across Hebei and Henan provinces, the situation is no better. Reaching the famed Marco Polo Bridge over the Yongding River, we crossed our first parched(干裂的) riverbed. From there to the Yellow River, we traversed many legen
A. The Yellow River stops flowing in Henan and Shandong provinces.
B. The use of precipitation4nducement technologies is a great success.
C. Beijing’s glorious Water Cube will restore China’s greatness.
D. The South-North Water Transfer Project will encounter difficulties.