Mr White works in an office. He’s very busy and has no time to have a good rest. Every evening, when he comes back from his office, he’s always tired and wants to go to bed early. But his wife often has a lot of interesting things to tell him after dinner. She doesn’t stop talking until she falls asleep (入睡). But it’s usually too late and Mr White has to get up early in the morning when she is still sleeping.
One day Mr White felt terrible and couldn’t go to work. He decided to go to see a doctor. Mrs White went to the hospital with him. Before her husband said what was the matter with him, the woman told the doctor all. The doctor wrote out a prescription (处方). When Mrs White took the medicine to the doctor’s room, the doctor said to her, “The bottle of medicine is for your husband and the pills (药片) are for you. ”
“For me?” the woman said in surprise. “I’m fine. I don’t need any medicine!”
“I don’t think so, madam,” said the doctor. “They are sleeping pills. Your husband will be all right soon if you take them. ”
小题1:Mr White ______.
A．has time to have a good sleep
B．is busy but he can have a good sleep
C．isn’t tired and doesn’t like to go to bed early
D．doesn’t have a good rest小题2:Mr White’s wife ______ every evening.
A．works late
B．writes things
C．keeps talking late
D．watches TV late小题3:Mr White has to get up when his wife is sleeping in the morning because ______.
A．he can’t fall asleep
B．he has to go to work
C．he doesn’t want to sleep
D．his wife asks him to get up小题4:One day Mr White couldn’t go to work because ______.
A．he was ill
B．his wife was ill
C．his wife didn’t let him go
D．he didn’t want to go to work小题5:The sentence “Your husband will be all right soon if you take them. ” means Mr White will soon be all right if ______.
A．Mr White takes the pills
B．Mr White takes the bottle of medicine
C．Mrs White takes the pills
D．Mrs White stops talking too much at night
）。我们用电磁打点计时器、米尺、游标卡尺、纸带、复写纸来完成下述实验：（打点计时器所接交流电的频率为50Hz，A、B、C、D……为计数点，相邻两计数点间有四个点未画出）
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=0.389m/s
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≈6.5rad/s
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=
=0.59m/s2
，ω=
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≈0.98rad/s2