专升本的英语试题(3)

　　Port III Reading Comprehension (2,5 points each, 50 points in all)

　　Directions: There are 4 tasks for you to fulfill, You should read the passages below carefully and do the tasks as you are instructed.

Task 1

　　Directions: After reading the following passage, you will find 5 questions or unfinished statements (No.46 to No.50). For each question or statement there are 4 choices marked A, B, C and D. You should make the correct choice and write the corresponding letter on the Answer Sheet.

　　Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.

　　If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day, As you enter each zone, the time changes one hour. Traveling west, you set clock back; traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.

　　If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow.

　　46.Strange things happen to time when you travel because _______

　　A.no day really has twenty-four hours

　　B.the earth is divided into time zones

　　C.time zones are not all the same size

　　D.no one knows where time zones begin

　　47.The time difference between two neighboring zones is ________

　　A.one day B.twenty-five hours

　　C.one hour D.twenty-three hours

　　48.According to paragraph 2, it seems true that the Atlantic Ocean______

　　A.is one time zone

　　B.is divided into five time zones

　　C.is divided into twenty-four time zones

　　D.cannot be crossed in five days

　　49.If you cross the ocean going east, you set your clock______

　　A.ahead one hour in each new time zone

　　B.ahead one hour for the whole trip

　　C.back one hour in each new time zone

　　D.back one hour for the whole trip

　　50.The International Date Line is the name for ______

　　A.the beginning of any new time zone

　　B.any point where time changes by one hour

　　C.the point where a new day starts

　　D.any time zone in the Pacific Ocean