10.选J)。此处应填形容词。从后面的However后的一句说明智能建筑的优点而得知,However前所说的是智能建筑的缺点。既然智能建筑很聪明,又是新事物,那么建造起来肯定会耗费很多资金的,所以选J)expensive。
导读:
After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had good news to report: The damage and death toll could have been much worse. More than 60 people died in this earthquake.By comparison, an earthquake of similar M)intensity that shook America in 1998 claimed 25,000 victims.(这句的主干是an earthquake...claimed...
25,000 victims。)
Injuries and deaths were G)relatively less in Los Angeles because the quake occurred at 4:31 a.m. On a holiday, when traffic was light on the citys highway. In addition, A)changes made to the construction codes in Los Angeles during the last 20 years have strengthened the citys buildings and highways, making them more I)resistant to quakes.
In the past, making structures quake-resist-ant meant firm yet B)flexible materials, such as steel and wood, that bend without breaking. Later, people tried to lift a building off its foundation, and insert rubber and steel between the building and its foundation to F)reduce the impact of ground vibrations. The most D)recent designs give buildings brains as well as concrete and steel supports, called smart buildings, the structures respond like living organisms to an earthquakes vibrations. When ground shakes and the building tips forward, the computer would K)force the building to shift in the opposite direction. The new designs should offer even greater N)security to cities where earthquakes ofen take place.(In the past...,Later...,The most...designs,这里是一个世间顺序上的描述,说明了从以前到现在,建筑物的结构一直在不断变化。)
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