KỲ THI THỬ ĐẠI HỌC LẦN 1 Năm học 2010 - 2011 Môn: Tiếng Anh - Mã đề thi 108

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KỲ THI THỬ ĐẠI HỌC LẦN 1 Năm học 2010 - 2011 Môn: Tiếng Anh - Mã đề thi 108 Trường THPT Lê Quảng Chí KỲ THI THỬ ĐẠI HỌC LẦN 1 Năm học 2010 - 2011 -----o0o----- Môn: Tiếng Anh Thời gian làm bài: 90 phút; (80 câu trắc nghiệm) Họ, tên thí sinh:.......................................................................... Mã đề thi 108 Số báo danh:...............................................................................Questions 1 - 10 : Read the following passage carefully and then choose the best answer to eachquestion.For many years, scientists have speculated that the cataclysmic impact of an asteroid with the earth wasresponsible for the demise of the dinosaurs approximately 65 million years ago. Previous discoveries andresults have hinted that an asteroid two kilometers in diameter struck the Yucatan peninsula in EasternMexico. This impact, stronger than one thousand nuclear explosions, is speculated to have cast a cloud of dustand debris into the atmosphere, covering the entire surface of the earth and blocking out the sun andconsequently lowering the surface temp erature of the earth. With such a radical change in the earth’s environment, scientists believe that over 90% of all anim al andplant species were eradicated. Only after millions of years did plants and animals even begin to recover. But,the reign of the dinosaurs had ended and the age of mammals had begun. The crucial link that has held this theory together has been the element iridium. Iridium is not commonlyfound on either the surface of the earth or inside the crust. It is more commonly found in asteroids ormeteorites throughout the solar system. Scientists have hypothesized that after the asteroid impacted the earth,an even layer of iridium sediment settled over the global and eventually became part of its surface. The theory,of course, has depended on the discovery of such an existing layer of iridium. Unfortunately, scientists have never been able to offer absolute proof that this asteroid impact eve roccurred. Recently, however, a discovery may go a long way toward validating these scientists’ theories. In1996, a team of marine biologists excavated samples of rock from the floor of the Atlantic Ocean just off thecoast of Bermuda. Found thousands of meters below the sea, these samples contain iridium similar to thosefound in the Yucatan peninsula thousands of kilometers away. At first, scientists were skeptical whether thesamples were from the same time period. But sissnce carbon dating placed them to 65 million years ago, theirdoubts were quickly alleviated. Since then, many of the other theories for the demise of the dinosaur havebeen finally laid to restQuestion 1: This passage mainly discusses a theory about A. the extinction of the dinosaurs B. which type of dinosaur roamed where C. archeological evidence from Mexico and the Atlantic Ocean D. why the dinosaurs turned into birds and reptilesQuestion 2: According to the passage, approximately how large was the asteroid that scientists believestruck the Earth? A. 2 kilometers in diameter B. 65 kilometers in diameter C. 1000 kilometers in diameter D. 99 kilometers in diameterQuestion 3: The word “hinted” is closest in meaning to A. d enied B. flirted C. implied D. disprovedQuestion 4: The word “cast” is closest in meaning to A. shone B. d ispersed C. excused D. climbedQuestion 5: What can be inferred from the passage about asteroid impact mentioned in lines 6 – 8? A. New plants and animals evolved with the changed environment B. The climate remained fairly constant C. The gravitational force from the earth’s core is altered D. A p lanetary defense system formedQuestion 6: The word “reign” is closest in meaning to A. extremity B. u nderstanding C. dominance D. denialQuestion 7: The word “It” in line 10 refers to A. Iridium B. Earth C. Crust D. AsteroidQuestion 8: What does fourth paragraph of the passage mainly discuss? A. The discovery of ancient fossils located far beneath the ocean floor Trang 1/6 - Mã đề thi 108 B. The major processes that have created the Earth’s crust C. Recent discoveries that may confirm the asteroid impact hypothesis D. The composition of the oce ...