Tham khảo tài liệu 'đề thi cđ môn tiếng anh khối d 2007 m248', tài liệu phổ thông, ôn thi đh-cđ phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | BỘ GIÁO DỤC VÀ ĐÀO TẠO ĐỀ THI TUYỂN SINH CAO ĐẲNG NĂM 2007 ĐỀ CHÍNH THỨC Đề thi có 04 trang Môn thi TIẾNG ANH Khối D Thời gian làm bài 90 phút. Mã đề thi 248 Họ tên thí sinh . Số báo danh . ĐỀ THI GỒM 80 CÂU TỪ CÂU 1 ĐẾN CÂU 80 DÀNH CHO TẤT CẢ THÍ SINH. Đọc kỹ đoạn văn sau và chọn phương án đúng ứng với A hoặc B C D cho mỗi câu từ 1 đến 10. A pilot cannot fly by sight alone. In many conditions such as flying at night and landing in dense fog a pilot must use radar an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects radar can show a pilot how fast nearby planes are moving. The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar however the waves are radio waves instead of sound waves. Radio waves travel at the speed of light about 300 000 kilometers in one second. A radar set sends out a short burst of radio waves. Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set a trained technician can determine the distance between the radar set and other objects. The word radar in fact gets its name from the term radio detection and ranging . Ranging is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots radar is essential for air traffic control tracking ships at sea and for tracking weather systems and storms. Câu 1 What is the main topic of this passage A. The nature of radar. B. History of radar. C. Alternatives to radar. D. Types of ranging. Câu 2 According to the passage what can radar detect besides location of objects A. Shape. B. Size. C. Speed. Câu 3 The word exemplified in the passage can be replaced by A. specified B. resembled C. illustrated Câu 4 The word shouts in the passage most closely means A. exclaims B.
