单项选择题

Section Ⅰ Use of English Directions: Read the following text. Choose the best word (s) for each numbered blank and mark [A], [B], [C] or [D] on ANSWER SHEET 1. It has been a hundred years since the last big one in California, the 1906 San Francisco earth quake, which helped give (1) to modem earthquake science. A century later, we have a highly successful (2) , called plate tectonics, that explains why 1906-type earthquakes happen--along with why continents drift, mountains rise, and volcanoes (3) the Pacific Rim. Plate tectonics may be one of the (4) triumphs of the human mind, geology’s (5) to biology’s theory of evolution. And yet scientists still can’t say when an earthquake will happen. They can’t even come (6) . What scientists can do right now is make good maps of fault zones and (7) out which ones are probably due (8) a rupture. And they can make forecasts. A forecast might say that, over a certain number of years, there is a certain (9) of a certain magnitude earthquake in a (10) spot. And that you should fix your house to its foundation and glue the water heater to the wall. Turning forecasts into predictions--"a magnitude 7 earthquake is (11) here three days from now"--may be impossible, but scientists are doing everything they can to solve the (12) of earth quakes. They break rocks in laboratories, studying how stone (13) under stress. They hike (14) ghost forests where dead trees (15) of long-ago tsunamis. They make maps of unsecured, balanced rocks to see where the ground has (16) in the past and how hard. They dig ditches across faults, searching for the active trace. They have wired up fault zones with so many sensors it is (17) the Earth is a patient (18) intensive care. (19) , we tell ourselves--trying hard to be persuasive--there must be some way to (20) order and criterion on all that untrustworthy ground.

Read the following text. Choose the best word (s) for each numbered blank and mark A, B,C or D on ANSWER SHEET 1. 1（）

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