50．From the last paragraph，we can find that ．
52．In the first experiment of buttered toast，we know the toast landed butter-side down
A．it is true that inside fat can lead to disease
about 620 times．
B．exercise plays an important role in people’ s life for keeping healthy 53．If the toast can land butter-side down，Murphy’ s Law is true．
C．thin people usually have inside fat even if they are thin 54．In the first two experiments，either the butter or the letter “B” plays a role． D．it is easier to burn off inside fat than outside fat
55．The passage is mainly talking about Murphy’ s Law depends on people’ s mental
D
state(心理状态)．
Sometimes，when you worry that you may fail an exam，you end up failing．Or during a E 日常对话
seating arrangement (安排) in your class，when you are afraid to sit next to someone you don’ t A: 56 like，you end up sharing the desk with him or her．
B: Actually，I haven’ t been sleeping well．
This is what Murphy’ s Law tells us: If things can go wrong，they will go wrong．But is it A: 57
B: I go to bed，but I just can’ t get comfortable enough to stay asleep． true?
A: When do you get into bed for the night? Of the studies about Murphy’ s Law，the most famous one is the buttered toast (烤面包片)
B: 58 phenomenon (现象): One toast with butter falls，it lands butter-side down most of the time．
A: Do you have a lot on your mind when you try to go to sleep? To prove this，Robert Matthews did a lot of experiments with more than 1,000 British B: 59 school kids in 2001．
A: Do you ever meditate (冥想) or read before bedtime?
In the first experiment，each student put a piece of buttered toast on a plate，let it fall off B:
60
20 times and noted which side it landed on．Of almost 10,000 experiments，toast landed
butter-side down 62 percent of the time．
A. My bed is really comfortable．
B. How have you been doing recently?
But you may ask: Is it the butter that plays a role? Here comes Matthews’ second C. I usually watch a lot of television before I go to bed．Maybe I should
experiment．
try something else to help me quiet down．
This time，instead of butter，the toast had a letter “B” written on one side．It still landed 58 D. I usually try to go to bed around 11:00 or so during the week． percent of the time on the B-side．
E. My mother is ill，and I think about her a lot．
This proved that Murphy’ s Law is true: If the toast can land butter-side down，it will do so． F. Is there any reason why you can’ t get enough sleep? Matthews did another experiment．When students threw the toast from a height of 2.5 G. Why not go to see a doctor?
metres，the toast landed butter-side down only 47 percent of the time．
“Toast lands butter-side down because humans aren’ t tall enough to let it land any other way，” Matthews said． 根据上文内容判断正 (T) 误(F)
51．According to Murphy’ s Law，in an English class，if you don’ t want to be questioned by the teacher，you may end up failing answering the questions．
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