[外语类试卷]考博英语(阅读理解)练习试卷27及答案与解析.doc
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1、考博英语(阅读理解)练习试卷 27及答案与解析 一、 Reading Comprehension 0 Mount Rainier, the highest mountain in Washington State, reaches to more than 14 410 feet (4 392 meters) above sea level. Though it is a dormant volcano (having last erupted 150 years ago) encased in over 35 square miles of snow and ice. steam vents
2、 in the summit craters suggest the volcano is not extinct. Even though it was built up to its towering height above the surrounding country by repeated eruptions and successive flows of hot lava, it is the slow and unstoppable power of glacial ice that is now reshaping it. Glaciers are essentially a
3、ccumulations of snow that has not melted from year to year. As the snow accumulates, its weight presses the air out from between the crystals and packs the snow down tight, compressing it to a sponge-like, porous ice called firn or neve. Each year as a new layer of snow is added, the lower layers ar
4、e compressed more and more, becoming harder and harder until finally the lower layers become as hard as ordinary ice. Then gravity pulls the ice down the mountainside, both scouring and smoothing the bedrock underneath it as it moves. The seasonal freezing and thawing breaks rocks from adjacent slop
5、es, which then fail onto the glaciers surface. The passing ice carries the debris away. Thus, what has been created by fire is destroyed by ice. A particularly amazing feature of Mount Rainier is the ice caves that are scattered along its flanks. They are formed when small grottos are melted out alo
6、ng the sides of the glacier. Rainiers two ice-filled summit craters each support a network of ice caves which arc carved by heat and volcanic emissions from deep inside the mountain. This happens when the firn ice created from the continual accumulation of snow in the summit craters starts to melt f
7、rom the heat that rises along the crater walls of the volcano. The currents of warm air melt chambers between the rock walls of the mountain and the firn ice. As the process continues, a complex network a maze -of large caves and tunnels is created throughout the interior of the crater. This whole p
8、rocess depends on maintaining a rather delicate balance. In order for the process to continue, enough snow must fall each year to fill the craters and replace the ice that has melted underneath. But, if too little heat is emitted, and the snow steadily accumulates, then the ice will expand, pushing
9、itself against the crater walls and filling the caverns with ice. On the other hand, if more steam is emitted than the amount of firn created, the ice pack will melt away, destroying the ice caves. It is in this manner that Mount Rainier s huge Paradise Ice Caves melted away in the 19th century. (45
10、9 words) 1 What is true of Mount Rainer according to the first paragraph? ( A) It is the highest maintain in Washington DC. ( B) It is an active volcano. ( C) It has erupted only once. ( D) The new form of Mount Rainer results from glacial ice. 2 What does “glacier“(Line 1, Para. 2) mean? ( A) The s
11、ummit of a mountain. ( B) A stream of water melting from ice. ( C) Mass of ice formed by snow. ( D) The ice cave. 3 What is the typical character of Mountain Rainier? ( A) Ice caves. ( B) The debris of rocks. ( C) Caters. ( D) A maze. 4 What causes the formation of firn ice? ( A) Gravity. ( B) Conti
12、nual accumulation of snow. ( C) Volcanic emission. ( D) Snow melting. 5 Which of the following is NOT true according to the passage? ( A) Paradise Ice Caves used to be in Mount Rainier. ( B) The seasonal freezing and thawing can break rocks. ( C) Some dormant volcanoes can erupt. ( D) Firn is like a
13、 sponge, soft to touch. 5 Has anyone seen my extra digital camera battery? Im that desperate. I am not adapting well to this world where valuable electronics are growing smaller every year. Everything about my camera is precarious. Instead of a closet full of bulky photo albums which are difficult t
14、o lose (or in my case, stacks of photos stuffed in shoe boxes), the visual montage of my life over the last five years is sitting on a perfectly fallible hard disk on my laptop. None of the backup options work for me. I was thinking about backing up all my photos on CDs, but with CDs strewn randomly
15、 around the house and in the car, Im worried that my irreplaceable pictures from Penang and Santo Domingo will be discarded along with pile of AOL trial disks or misplaced in some Los Lobos CD case forever. Those memory sticks are trouble too. Anything smaller than a pack of gum is bound to end up l
16、ost beneath the sofa cushions. And, Im constantly looking for that sleek little cord I need to transfer photos from the camera. I need a camera cord thats 30-feet long and Day-Glo orange so I can hang v. from a hook in the garage. I usually find the cord in a little zippered pouch where I also keep
17、a spare memory care thats about the size of a Cheez-It. But, I feel the need to put the pouch into a larger pouch so I dont lose it. So, whats the point of being compact, if I have to store these gizmos in something large to keep track of them? Im not used to having tiny, valuable things. If I lose
18、a Tic-Tac package, I can cope. but my new MP3 player of the same size is worth a hundred bucks. People with expensive jewelry are used to keeping track of small things, so maybe I need a jewelry case to keep all my electronics. Anything that is small enough for my pants pocket is living on borrowed
19、time. I learned that several years ago when a $ 90 pair of sunglasses went through the washers spin cycle unsuccessfully. Since then, I consider sunglasses a disposable product and never spend more than $ 12 a pair. Thats why Ive been clinging to my clunky old mobile phone, a five-year-old Nokia, th
20、e size of a kosher dill. Ive been rebuffing Cingulars offers for a “free“ upgrade phone until they offer one that can survive a few washings. I even misplace my laptop sometimes. This was not a problem 40 years ago. I hearken back to a time when computers, though slow and feeble, couldnt be misplace
21、d without the aid of a forklilt. So seriously, if you see a Canon camera battery lying around, its mine. (460 words) 6 What can we tell from the first sentence of the passage? ( A) The author has lost his battery. ( B) The battery the author has lost is very expensive. ( C) The authors digital camer
22、a wont be able to work with that battery. ( D) It illustrates the authors embarrassment about so many small accessories of digital products. 7 Up to now, the author has placed his photos anywhere EXCEPT_. ( A) in his photo albums ( B) on CDs ( C) on his laptop ( D) in memory sticks 8 What does “falh
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