B
　　In reading science,　 a heading （标题）often gives a clue （线索）to a problem that is going to be discussed .Getting the problem clearly in your mind is the first step to take in studying such material. You are advised to do this in reading science articles.
　　1. Read the title and think about it .
　　2. Read all of the headings .You should get a clear idea of what the problems are without reading anything but the headings.
　　3. Next ,　read the article all the way through carefully. Each time you come to a heading that names a problem, read the paragraphs under that heading to find out : 1. more information about the problem;　2.how the problem may be met .
　　41. This passage offers advice on _______.
　　A. how to read titles and headings B. how to find headings in an article
　　C. what problems to be discussed in science article
　　D. how to read science material
　　42. It is advisable¹ for you ________.
　　A. to read the heading which you think is the title
　　B. to read the heading that names a problem
　　C. to read one heading and the paragraph under it each time
　　D. to read the headings only
　　43. Read the whole article after ________.
　　A. you have got all the information about the problem
　　B. you understand the title C. you have read one paragraph after another
　　D. you are clear about what to be discussed
　　44. You read the whole article carefully _________.
　　A. to get all the headings B. to see how the problem is discussed
　　C. to name problems D. to think about the title
　　C
　　Unemployment(失业)rose from 7.5&in June,　 1996to 7.8% in July,　1996,　the highest rate since January of that year ,　the Labor² Department reported. The main reason was a large increase ——nearly 700,　000 in the labor force ,　with a record 61.9% of the population over sixteen years of age working or actively³ looking for work.
　　That growth was caused mainly by an increase in the number of women in the labor force ,　an increase partly because of a continuation of long ——term and economic trends(经济趋势)and partly a reflection⁴ of pressure on families to increase their incomes.
　　45. According to the announcement,　 which of the following statements is correct?
　　A. Unemployment in July was higher than it had been since January.
　　B. Unemployment rose at a steady rate form January to July.
　　C. Unemployment rose by about 7% from June to July.
　　D. Unemployment rose about 7% the first time in July.
　　46. Why did unemployment increase during the period discussed in the passage?
　　A. There are fewer jobs in summer. B. Many companies had dismissed⁵ workers.
　　C. The labor force had grown. D. Records have become more accurate(准确)
　　47. which of the following is said to be the main reason why more people are looking for work?
　　A. Young people start working younger.
　　B. Recent graduates have entered the labor market.
　　C. More people must have tow⁶ jobs to support their families.
　　D. More women have entered the job market.
　　48. It can be inferred⁷ that the labor force described in the passage is made up of __________
　　A. persons whose jobs are not professional(专业的)
　　B. persons who work at both permanent (永久)and full-time⁸ jobs
　　C. those over 16 years of age who are looking for work
　　D. about 60% of the country s population
　　D
　　I found myself facing a dry-cleaning store which had once been one of the best restaurants in New York. On Sundays the old man would take my mother and me for dinner. There had been a balcony(走廊)where a baker⁹ (面包师)in a tall white hat baked fresh bread ,　 and been whenever a customer entered,　 the baker would look down and put in a fresh batch(一炉).I could see the manager who always sat down with us while we ate .He had some disease¹⁰ ,　I suppose,　 because the right side of his face was swollen¹¹ (肿的)out like a balloon ,　but he always wore a hard wing collar and a white tie ,　 and never seemed sick .A Negro¹² with a moustache was looking through the store window at me .For a moment I was anxious to go and tell him what I remembered. I did not go into the store ,　 nor even toward¹³ our house ,　I went down town instead and sat in my room ,　 trying to read.
　　49. Why did the writer stop in front of the store?
　　A. He wanted to take some clothes to be cleaned.
　　B. He was thinking about his boyhood.
　　C. He was looking for a good place to eat.
　　D. He wanted to buy some fresh bread.
　　50. In America "old man" probably means _______.
　　A. uncle B. grandfather C. father D. friend
　　51. What did the writer do when he walked away from the dry-cleaning store?
　　A. He stopped thinking about his childhood.
　　B. He went to the field where the children were playing.
　　C. He went into the restaurant . D. He returned to the room where he was staying.

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