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问题 选择题

子贡问孔子：“老师，有没有一个字，可以作为终身奉行的原则呢？”孔子说“那大概就是恕吧。师生对话让我们明白[ ]

A．宽容是我们必备的道德品质

B．宽容意味着事事都要迁就他人

C．宽容就是在任何问题上绝不让步

D．要宽容自己、悦纳自己，但不要宽容别人

答案

答案：A

改错题

短文改错(共10小题；每小题1分，满分10分)

One day, there is a blind man sitting with a sign by his feet, that read, “I am blind, please help. ” A creative publicist was walking by him and observed that the man only had a few of

coins in his hat. He put a few of his own coin in it. Without ask for permission, he took the sign, turned it around, and wrote a new message. He then placed it back and left. Later that afternoon publicist returned and noticed that the hat was almost complete full of coins. The blind man recognized his footsteps and asked if it was she that had changed the sign. He wanted to know which the publicist wrote on the sign. The publicist replied, “I just changed your message because people could understand it. ”He said goodbye and went on his way. The blind man didn’t know the new sign was “Today is spring but I cannot see it”.

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问答题

滑轮组机械效率的实验中：

（1）实验原理是______．

（2）直接测得的物理量是_______、______、______、______．

（3）实验中应选用的测量工具是______．

（4）测量时，必须______拉动弹簧测力计．

（5）在“测滑轮组机械效率“的实验中，用同一滑轮组进行了两次实验，实验数据如下：

次数钩码重G/N上升高度h/cm弹簧测力计示数F/N绳头移动距离s/cm
12100.840
2551.520
a．第一次实验测得滑轮组的机械效率为______，第二次实验时滑轮组的机械效______（选填“大于”、“小于”或“等于”）第一次的机械效率．b．结论：若仅增加钩码的个数，该滑轮组有机械效率将______．（选填：“增大“、“减小“或“不变“）
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