阅读理解。
根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项
为多余选项。
A 7.0 magnitude (级) earthquake killed more than 230,000 people in Haiti. Then an 8.8 magnitude
quake killed more than 900 people in Chile. And few weeks later, a 6.0 magnitude quake struck rural
eastern Turkey, killing at least 57 people.
The earthquakes kept coming hard and fast. 1 It's not. The problem is what's happening above
ground, not underground, experts say.
2 They're rapidly putting up buildings that can't stand up to earth quakes, scientists believer.
And news reports and better earthquake monitoring make it seem as if earth quakes are increasing all
the time.
On average, there are 134 earthquakes a year that have a magnitude between 6.0 and 6.9. So far this
year there have been 40 earthquakes-more than in most years for that time period. But that's because the 8.8 quake in Chile caused a large number of strong aftershocks.
Also, it's not the number of quakes, but their destructive effects that gain attention. The death is largely due to building standards, 3 Paul Earle, a US seismologist, called for better building standards in the
world's big cities.
Of the 130 cities worldwide with populations of more than I million, more than half are likely to be hit
by earthquakes. 4 "If you have a problem feeding yourself, you're not really going to worry about
earthquakes," said Paul.
The earthquakes made everyone start to think 5 "People are paying attention to the violent planet
we're always lived on. Come back an another six moths if there has been no earthquakes, most people
will have forgotten it again," said US disaster researcher Dennis Mileti.
A. But it won't last.
B. More people are moving into big cities.
C. Earthquakes don't kill people, buildings do.
D. There have been more deaths overt the past decade from earthquakes.
E. Many people began to wonder if something terrible is happening underground.
F. While it seems as if the are more earthquakes occurring, there really aren't.
G. But developing nations with growing populations don't pay attention to earthquake preparedness.
，所以A正确，分子结构有碳碳双键，能使酸性KMnO4溶液褪色；B正确，分子结构中有碳碳双键，能发生加聚反应；C错，分子结构中无羧基，不能与乙醇发生酯化反应；D正确，分子结构中碳碳双键能与氢气发生加成反应；