11 in Seattle has unreinforced brick walls, a 12 being easy to collapse during earthquakes. The same 13 of walls crushed hundreds of thousands of people during the 1976 Tangshan quake in China.
A decade ago, Atwater would have paid little notice to schoolroom walls. But over the last several years, he and other scientists have found 14 signs that the Pacific Northwest has experienced giant quakes in the distant past and that the area may be headed for a destructive shock in the near future.
At a meeting of the American Geophysical Union in December, researchers discussed the 15 uncovered evidence of quake potential in the Pacific Northwest. While some remain unconvinced that huge earthquakeswith magnitudes of 8 or higherdo indeed 16 this region, a growing number consider such shocks a serious possibility.
Whats worrisome, they say, is that northwestern cities such as Portland, Seattle and Vancouver have not prepared for earthquakes of this magnitude, which could shake the regions 17 centers with enough force to make the recent San Francisco area damage seem 18 in comparison.
I think its quite true to say that nothing has really been designed with one of these earthquakes in mind, says seismologist Paul Somerville of Woodward. At the meeting, Somerville and his colleagues 19 estimates of the degree of shaking. Portland and Seattle would suffer during such a 20 earthquake.
A. massive B. recently C. construction D. displayed
E. relatively F. attends G. type H. strike
I. structure J. participates K. excessive L. mild
M. disturbing N. population 0. presented
II. F 12. C 13. G 14. M 15. B 16. H 17. N 18. L 19. O 20. A
11月21日的雅思的听力真题答案回忆
11月21日的雅思写作真题解析
11月24日的雅思口语真题的回忆
11月17日的雅思的写作真题回忆(版)
11月17日的雅思口语回忆(网友版)
11月17日雅思口语的真题解析
11月21日雅思阅读的真题解析
11月24日雅思口语的真题解析
12月10日的雅思写作答案解析及范文
12月7日的雅思阅读真题解析
12月10日雅思考试写作的范文
12月10日雅思口语真题的解析
11月17日的雅思口语真题回忆(版)
12月7日的雅思的阅读回忆(网友版)
12月7日的雅思听力的回忆(网友版)
11月28日雅思口语真题的解析
11月28日雅思的写作范文
11月17日的雅思的写作范文
11月24日的雅思写作的回忆(网友版)
11月17日的雅思阅读的真题的回忆
11月28日雅思阅读的真题的解析
11月24日的雅思的阅读真题(网友版2)
11月21日雅思的听力真题解析
11月24日的雅思写作的范文
11月28日的雅思写作真题的解析
11月24日的雅思的写作真题回忆
11月28日的雅思听力的真题解析
12月7日雅思听力答案的解析
11月24日的雅思的阅读回忆(网友版)
11月28日的雅思写作真题回忆
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