问题 完形填空
完形填空。
     Mr. White works in an office. He is very    1   and has no time to have a good rest. Every evening,
when he comes back    2     his office, he's always tired and wants to go to bed early.   3   his wife
often has a lot of interesting things to tell him after supper. She doesn't stop talking until he falls    4     .
But it's usually too late and Mr. White has to    5   early in the morning when she is asleep.
     One day the man     6   terrible and couldn't go to work. He decided to go to     7. And Mrs.
White went with him. Before her husband said    8   was the matter with him, the woman had told
the doctor all and the doctor understood why. He wrote a prescription(处方). And when
Mrs. White    9   the medicine to the doctor, he said to her, “The bottle of medicine is for your
husband and the pills are for you. "
     “For me?”the woman said in surprise,“I’m fine. I don't need    10   medicine."
     “I don't think so, madam,”said the doctor. “They are sleeping pills. Your husband will soon
be all right if you take them. "
(      ) 1. A. happy
(      ) 2. A. off
(      ) 3. A. But
(      ) 4. A. sleepy
(      ) 5. A. awake
(      ) 6. A. feels
(      ) 7. A. the market
(      ) 8. A. that
(      ) 9. A. brought
(      ) 10. A. some
B. busy
B. in
B. And
B. sleeping
B. go to bed
B. felt
B. the park
B. if
B. bought
B. any
C. angry
C. from
C. So  
C. asleep
C. stay up
C. falls
C. the office
C. what
C. took
C. no  
D. sorry        
D. to          
D. Or          
D. to sleep    
D. get up      
D. fell        
D. the hospital
D. how          
D. caught      
D. hardly      
答案

1. B   2. C  3. A   4. C   5. D   6. B   7. D   8. C   9. A   10. B

解答题
实验题

I.教师为每位同学准备了铁架台、铁夹、电键、复写纸、纸带、刻度尺、电磁打点计时器、密度不同的重物和导线若干。为了完成 “验证机械能守恒定律”的实验,你还必须领取 1  ,正确安装实验装置后,在释放纸带之前,应把重物提高到   2  的地方。某同学选用不同的器材,在实验中分别得到了甲、乙两条打上点的纸带,第一个打点均为,在甲纸带上任选6个连续的打点,它们到的距离分别为19.20cm、23.23cm、27.65cm、32.45cm、37.63cm、43.20cm;同样在乙纸带上任选6个连续的打点,它们到的距离分别为16.00cm、19.36cm、23.05cm、27.04cm、31.37cm、36.10cm。

根据甲纸带的数据可知,的重物由点运动到点重力势能的减少量等于

 3  ,动能的增加量等于  4 (当地的重力加速度取)。分析这位同学的两组实验数据,指出哪组不符合实验要求,并说明原因。

II.现有如下所示的实验器材(示意图),要完成伏安法“测定干电池的电动势和内阻”实验

(1)请选用器材并在实物连线图上完成必需的导线连接。

(2)若测得的实验数据如下表,请用作图法求出干电池的电动势和内阻。

电压(U / V)1.481.441.381.301.201.08
电流(I /A)0.050.100.150.250.350.50
(3)若上图中所给的电流表已被损坏,用剩余器材能否测定干电池的电动势和内阻?如能的话,请选定器材并给出电路图。