7．
"Are the volcanoes in Yellowstone National Park going to erupt anytime soon？Will the world end if it does？"People across the world have been keeping a close watch on the famous national park．
Yellowstone National Park assured （保证） guests and the public on Thursday that a super-volcano under the park was not expected to erupt anytime soon，despite a video that claimed bison （野牛） had been seen fleeing to avoid such a disaster．
Yellowstone officials，who received dozens of calls and emails since the video went online this week following an earthquake in the park，said the video actually shows bison rushing down a paved road that leads deeper into the park．
"It was a spring-like day and theywere crazy．Contrary to online reports，it's a natural happening and not the end of the world，"park spokeswoman Ms．Green said．
Assurances by Yellowstone officials and government geologists that the ancient super-volcano beneath the park is not due to explode have actually done little to reduce fears．
Comments from a self-described survivor suggest the wildlife fleeing may be tied to"a coming eruption here at Yellowstone"．
The 4.8magnitude earthquake that struck early Sunday near the Norris Geyser Basin in the northwest of Yellowstone，which extends 3，472square miles of Wyoming，Montana and Idaho，caused no injuries or damages and did not make any noticeable changes to the landscape，geologists said．
Though mild by seismic （地震的） standards，it was the largest to shake Yellowstone since a 4.8quake in February 1980．"But neither the quake，the largest among hundreds that have struck the area in the last seven months，nor the uplift suggests an eruption sooner than tens of thousands of years．The chance of that happening in our lifetime is very small．"said Mr．Smith，associate director at the U．S．Geological Survey's Volcano Science Center．He said the area of uplift that scientists had been tracking since August was rising at a rate of between 10centimeters and 15centimeters a year．Geologists who tracked uplift in the same area from 1996to 2003also saw rising seismic activity，he said．
32．What does the underlined word"they"in Paragraph 4refer to？A
A．Bison．
B．Officials．
C．Geologists．
D．Guests．
33．We can learn from the passage thatC．
A．there have been only 2earthquakes since 1980
B．there's only one survivor in the Sunday earthquake
C．there're still fears after hearing the official assurances
D．there's an online report that bison fleeing is a natural happening
34．What's Mr．Smith's prediction about the volcanic eruption in Yellowstone National Park？C
A．It will never happen．
B．It may happen anytime．
C．It won't happen in our lifetime
D．It may happen in the next 30years．
35．We can probably read such a passage inA．
A．a national newspaper
B．an entertainment magazine
C．a personal diary
D．an academic report．
小学生10分钟口算测试100分系列答案
