D
As is shown in a recent study, the way people sleep at night actually determines a lot about the type personality they have. Robert Phipps, a body language expert, has identified four sleeping positions that affect personality.
Phipps found that worriers, those who stress the most, tend to sleep in the fetal(胎兒的) position. He found that this is by far the most common bedtime position, sleeping on their side with knees up and head down. The more we curl up(蜷曲), the more comfort we are seeking, according to Phipps.
The second most common position is the log, indicating stubbornness（頑固）. People sleep with a straight body, with arms at each side, as if they are standing guard at Buckingham Palace, and these people (the 28 percent who sleep this way) often wake up stiffer(更僵硬) than when they went to sleep.” The longer you sleep like this, the more rigid your thinking is and you can become inflexible, which means you make things harder for yourself,” according to Phipps.
Yearner(向往型的) sleepers are next on the list. About 25 percent of people sleep in this style----on their backs with arms stretched out in front, looking as if they are either chasing a dream or perhaps being chased themselves. Yearners are typically their own worst critics, always expecting great results, explained Phipps. These people often wake up refreshed and eager to face the challenges of the day ahead.
Perhaps the most special sleep style is the freefaller position. This sleep style makes up 17 percent of the population. They sleep face down with arms stretched out. These people, according to Phipps, feel like they have little control over their life. Not only is this the strangest of sleep styles, it also the least comfortable, and people may wake up feeling tired and have no energy.
In conclusion, Phipps has only one more thing to add: “A good night’s sleep sets you up for the following day and our sleeping positions can determine how we feel when we wake.”
68. Which of the following pictures is the fetal position?
 

69. The underlined word “rigid” the third paragraph is closest in meaning to “________”.
A. comfortable        B. stubborn        C. flexible      D. strange
70. Which sleeping position indicates that the sleeper tends to seek perfection?
A. The fetal position                    B. The log position
C. The yearner position             D. The freefaller position
71. What is the passage mainly about?
A. Which sleeping position helps you sleep comfortably？ 
B. A good night’s sleep sets you up for the following day.
C. Your personality depends a lot on how you sleep at night.
D. How you sleep at night affects what you do the next day.
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