专业英语四级模拟试卷489(题后含答案及解析)

专业英语四级模拟试卷489（题后含答案及解析）题型有：1. DICTATION 2. LISTENING COMPREHENSION 3. CLOZE 4. GRAMMAR & VOCABULARY 5. READING COMPREHENSION 6. WRITINGPART I DICTATION (15 MIN)Directions: Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will then be given 2 minute1正确答案： The Polluted Environment Our environment is being polluted faster than nature and man s present efforts can prevent it./ Time is bringing us more people,/ and more people will bring us more industry,/ more motor vehicles, larger cities, and the growing use of man-made materials./ What can explain and solve this problem?/ The fact is that pollution is caused by man /by his desire for a modern way of life./ We make increasing industrialization our chief aim./ For its sake, we are willing to sacrifice everything:/ clean air, pure water, good food, our health and the future of our children./ There is a constant flow of people from the countryside into the cities,/ eager for the benefits of modern society./ But as our technological achievements have grown in the last twenty years,/ so pollution has become a serious problem./ Isn t it time we stopped to ask ourselves where we are going and why?/PART II LISTENING COMPREHENSION (20 MIN)Directions: In Sections A, B and C you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on your answer sheet.SECTION A CONVERSATIONSDirections: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.听力原文： W: Elizabeth Martin speaking.M: Dr. Martin, my name is Mark Johnson. My roommate, Benjamin Jones, is in your art history class. Uh-m, Art History 502? W: Yes. M:(l)Well, he is sick and wont be in your class today. He asked me to bring his term paper to your office. W: Ok. The paper is due by 3 o clock.M: I have a class from 1 to 2. I ll bring it to your office after my class. W: Well, I have a meeting this afternoon. So you can drop it off with the secretary of the art history