2012年全国专四真题及郑家顺版答案.doc

2012专四真题 PART III CLOSE Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. The earthquake of 26th December 2004 resulted in one of the worst natural disasters in living memory. It was a (31) ________ underwater quake and occurred in the Indian Ocean. It (32) _____coastlines, communities and brought death to many people. Why do earthquakes happen? The surface of the earth has not always looked as it does today; it is moving (33) ______ (although very slowly) and has done so for billions of years. This is one (34) ______ of earthquakes, when one section of the earth (tectonic plate) (35) ______ another. Scientists can predict where but not (36) _______ this might happen and the area between plates is called a fault line. On one fault line in Kobe, Japan in 1923 over 200,000 people were killed. (37) ______, earthquakes do not always happen on fault lines, (38) ______ is why they are so dangerous and (39) _______. Where do volcanoes happen? Volcanoes happen where the earth’s (40) ______ is thin: lava, dust and gases (41) _____ from beneath the earth. They can rise into a huge cone shape like a mountain and erupt, (42) _____ they can be so violent (42) _____ they just explode directly from the earth with no warning. There are 1511 (44) ` _____ ` volcanoes in the world. This means that they may (45) ______ BE DANGEROUS. In 1985 the Colombian volcano Nevado del Ruiz erupted. The lava melted a glacier and sent tones of mud (46) _____ the town below. Twenty thousand people died. Natural disasters like volcanic eruptions are often unpredictable. We regularly do not know when they (47) ______ happen, or (48) ______ where they will happen. In the future, scientists may be able to watch and predict (49) ______ before they happen. This could (50) ______ many lives. 31. A. massive B. significant C. great D. grand 32. A. changed B. converted C. destroyed D. transformed 33. A. frequently B. peri