[填空题]
No one knows exactly why we laugh or why anything that is
funny should cause us to make such a peculiar noise. It would be just as logical
to stick our thumbs in our ears and wiggle our fingers as it is to giggle or
bellow or howl with laughter. But when something strikes our "funny bone", our
diaphragm flutters up and down, and we laugh.
66.
______
Stories are among the most popular forms of humor. As a
rule, a story is considered inferior if it embarrassed someone, if it makes
something sacred appear common, if it makes a person’s weakness the cause for
laughter, if it has to have vulgarity to be funny, or if everyone cannot join in
the enjoyment of the joke.
People enjoy very much the various
situations of humor.
If a man meets a lady on the street, tips
his hat to her, and a pigeon flies out from beneath it, most of the people who
see it would roar with laughter. This is called the humor of the unexpected
happening.
[单项选择]
No one knows exactly why we sleep. But scientists have learned a lot about how we sleep. From sleep experiments, scientists have learned that there are four different stages of sleep.
When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people call this kind of sleep dozing. Scientists call it stage one sleep.
Next, if you are not awakened, you drift into a deeper sleep. Your pulse and breathing become even slower than they were during stage one sleep. But you can still be awakened quite easily. If you take a cat nap, you probably will not get any further than this stage of sleep, which is called stage two.
If you sleep longer than about twenty minutes, you go into the third stage of sleep. Your body is very relaxed. It would take a loud noise to wake you up.
You have probably heard of people who walk in their sleep. No one knows w
A. Reason’s for People’s Sleep
B. Four Stages of Sleep
C. Reasons for Sleepwalking
D. A Sleep Experiment
[单项选择]
E
No one knows exactly why we sleep. But scientists have learned a lot about how we sleep.
When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people call it dozing (打盹). Next, you enter into a deeper sleep. Your pulse (脉搏) and breathing become even slower. But you can still be awakened quite easily. If you take a catnap, you probably will not get any further than this stage (阶段) of sleep. If you sleep longer than about twenty minutes, you get into the third one. Your body is very relaxed. It would take a loud noise to wake you up. You may have heard of people who walk in their sleep. No one knows what makes people sleepwalk. But a person can sleepwalk only during stage four. This is the last and deepest kind of sleep. If someone wakes you up, you might feel very uncomfortable and you need a few minutes to get used to being awake. A
A. two
B. three
C. four
D. five
