Everyone knows that laziness is a sin. We have probably all had lectures pointing out that laziness is immoral, wasteful, and that lazy people will never amount to anything in life. But laziness can be more harmful than that, and it is often caused by more complex reasons than simple wishes to avoid work. Some people who appear to be lazy are suffering from much more serious problems. They may be so distrustful of their fellow workers that they are unable to join in any group task for fear of ridicule or for fear of having their ideas stolen. These people who seem lazy may be paralyzed (丧失活动能力的) by a fear of failure that prevents fruitful work. Or other sorts of fantasies may prevent work; some people are so busy planning, sometimes planning great deals or fantastic achievements, that they are unable to deal with whatever "Iesser" work is on hand. Still other pcople are not avoiding work; strictly speaking, they are merely procrastinating ( 拖延) rescheduling their day.
Laziness can actually be helpful. Like procrastinators, some people may look lazy when they are really thinking, planning, contemplating (深思) and researching. We all should remember that some great scientific discoveries ocurred by chance or while some were“goofing off”(磨洋工) . Newton wasn't working in the orchard when the apple hit him and he discovered the law of universal gravitation. Sometimes, being "lazy"一that is, taking time off for a rest-is good for overworked students or executives. Taking a rest can be particularly helpful to the athlete who trying too hard or the doctor who's simply working himself overtime too many evenings at the clinic. So be careful when you are tempted to call someone lazy. That person may be thinking, resting, or planning his or her next book.
16. The underlined word "that" in the First paragraph refers to“____”
A. laziness is immoral
B. laziness is wasteful
C. lazy people will never amount to anything in life
D. all of the above
17. The first paragraph is motly devoted to the discussion of____.
A. Complex reasons that make people seem lazy
B. serious problems that lazy people suffer from
C. other sorts of fantasies that may prevent work
D. great deals that people are busy planning
18. According to the second paragraph, being "lazy" is good for____.
A. a student who is on holiday
B. a doctor who is working overtime
C. an executive who is on leave
D. an athlete who is not training
19. The tone of the passage is____.
20. What does the writer intend to tell us in the passage?
A. Laziness is definitely a sin.
B. Laziness can be of great help all the time.
C. Laziness makes people good for nothing.
D. Laziness should be properly defined.
16. [答案] D
[解析]题干大意是:第- .段中 的画线词“that"指___。 根据第一段第二、三句"We have probably all had lectures pointing out that laziness is immoral, wasteful, and that lazy people will never amount to anything in life. But laziness can be more harmful than th.."可知，画线词that指代的是前面提到的“懒惰不道德，懒惰浪费时间，懒人将在人生中一事无成”，A、B、C三项均包含在内，故选D.
17. [答案] A
[解析]题干大意是:第一段主要讨论的是___。 根据第一段第三句...and it is ofen caused by more complex reasons than simple wishes to avoid work.”可知，导致懒惰的原因不仅仅是想要逃避工作那么简单，而是更为复杂。下文具体分析了人们懒惰的各种原因。由此可推知，本段主要讨论的是导致人们看起来懒惰的复杂原因。故选A。，
18. [答案] B
[解析]题千大意是:根据第二段，变得“懒惰”对__有帮助。根据第二段倒数第三、四句..being *lazy' .i good for overworked students or executives. Taking a rest can be particularly helpful to the athlete who is trying too hard or the doctor who, s simply working himself overtime too many evenings at the clinic."可知，“懒惰"对于劳累过度的学生或者主管来说是有好处的:对于努力过度的运动员或连续多日在诊所加夜班的医生来说，休息是特别有帮助的，所以B项(一位正在加班的医生)符合题意。A项(一名在度假的学生)、C项(一位在休假的主管)和D项(一位没有在训练的运动员)均不符合题意。故选B.
19. [答案] A
[解析]题干大意是:文章的基调是___ .通读全文可知，作者首先讲述了懒惰的危害和导致懒惰的原因,接着在第二段讲述了懒惰的益处。由此可推知，作者采取了一种客观且严谨的态度对懒惰进行了分析。cautious :小心的，谨慎的acaress:不小心的;optimisti:乐观的pessimistie:悲观的。故选A.
20. [答案] D
[解析]题千大意是:文中作者想告诉我们什么?通读全文可知，文章探讨了导致懒惰的原因，并阐述了懒惰在某些情况下也会有好处。再结合第二段最后两句"So be careful when you are tempted to call somcone lazy. That person may be thinking, resting, or planning his or her next book."可知，当你想说某个人懒情的时候要小心了，那个人可能在思考、休息或构思'自己的卞本书。由此可推知，对懒惰的界定并不是一成不变的，我们应该采取正确的方式来定义它。故选D。