【正文】 nal stage. The first full scale giant recycling plants are, perhaps, fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dumps, some big cities will be forced to build their own recycling plants before long. 53. The main purpose of the passage is __ A. to show us a future way of recycling wastes B. to tell the importance of recycling wastes C. to warn people the danger of some wastes D. to introduce a new recycling plant 54. How many stages are there in the recycling process? A. 3. B. 4. C. 5. D. 6. 55. What is the main reason for big cities to build their own recycling plants? A. To deal with wastes in a better way. B. It39。s a good way to gain profits. C. It39。s more economical than to dump wastes in some distant places. D. Energy can be got at a lower price. 56. Which of the following statements is true? A. The word rubbish will soon disappear from dictionaries. B. Dangerous wastes can be recycled into nothing but energy. C. To recycle paper and rubber will still be impossible even with the new recycling methods. D. Big cities will soon have their own recycling plants. Questions 57 to 60 are based on the following passage: There were two widely divergent influences on the early development of statistical methods. Statistics had a mother who was dedicated to keeping orderly records of governmental units (state and statistics e from the same Latin root, status) and a gentlemanly gambling father who relied on mathematics to increase his skill at playing the odds in games of chance. The influence of the mother on the offspring, statistics, is represented by counting, measuring, describing, tabulating, ordering, and the taking of censusesall of which led to modem descriptive statistics. From the influence of the father came modem inferential statistics, which is based squarely on theories of probability. Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grand levelvariables that are characterized by an underlying continuumor the data may represent qualitative variables, such as sex, college major, or personality type. Large masses of data must generally undergo a process of summarization or reduction before they are prehensible. Descriptive statistics is a tool for describing or summarizing or reducing to prehensible from the properties of an otherwise unwieldy mass of data. Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make prediction using 39。a sample of observations. For example, a school superintendent wishes to determine of the proportion of children in a large school system who e to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficient to question each child。 the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from a knowledge of the characteristics of only a sample of the population. 57. With what is the passage mainly concerned? A. The drawbacks of descriptive and inferential statistics. B. Applications of inferential statistics. C. The development and use of statistics. D. How to use descriptive statistics. 58. Which of the following is NOT given as an example of qualitative variable? A. Gender. B. Height. C. College major. D. Type of personality. 59. Which of the following statements about descriptive statistics is best supported by the passage? A. It simplifies unwieldy masses of data. B. R leads to increased variability. C. It solves all numerical problems. D. It changes qualitative variables to quantitative variables. 60. According to the passage which is the purpose of examining a sample of a population? A. To pare different groups. B. To predict characteristics of the entire population. C. To consider all the quantitative variables. D. To tabulate collections of data. Section B Directions: There are 10 blanks in the following passage. For each blank there are four choices marked A, B, C and D. You should choose the ONE that best fits into the passage. Then mark your answer on the Answer Sheet. If you were to begin a new job tomorrow, you would bring with you some basic strengths and weaknesses. Success or 61 in your work would depend, to a great extent, 62 your ability to use your strengths and weaknesses to the best advantage. Of the utmost importance is your attitude. A person 63 begins a job convinced that lie isn39。t going to like it or is sure that he is going to ail is exhibiting a weakness which can only hinder his success. On the other hand, a person who is secure 64 his belief that he is probably as capable of doing the work as anyone else and who is willing to make a cheerful attempt by it possesses a certain strength of purpose. The chances are that he will do well. 65 the prerequisite skills for a particular job is strength. Lacking those skills is obviously a weakness. A book keeper who can39。t add or a carpenter who can39。t cut a straight line with a saw is hopeless cases. This book has been designed to help you capitalize 66 the strength and overe the 67 that you bring to the job of learning. But in group to measure your development, you must first take stock of where you stand now. 68 we get further along in the book, we39。ll be