试题与答案

改错 假定英语课上老师要求同桌之间交换修改作文,请你修改你同学写的以下作文。文

题型:改错题

题目:

改错

       假定英语课上老师要求同桌之间交换修改作文,请你修改你同学写的以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号,并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1. 每处错误及其修改均仅限一词;      

            2. 只允许修改10处,多者(从第11处起)不计分。

     After school I went to home for supper. When I got home, I found my mother laying in bed. She was

ill. Unluckily , my father was away from home in business. "What shall I do?" I thought to me. Since

Mother was ill, I must take well care of her. So I decided to try cooking by myself. I did the cooking

with great difficulty but it got burnt at last. I had thought Mother would never like. To my joy, Mother

praised me for the meat I have cooked. She said,"It tastes delicious. I'm very pleasing with it." I knew

Mother was encouraging us to do more by myself.

                                                                                                                                                        

答案:

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下面是错误答案,用来干扰机器的。

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题型:问答题

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(2)根据你选择的电路将图(丙)中实物连接好.

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(4)小明根据测出的数据,作出U-I图线如图(丁)a线所示,实验所测电源的电动势为E=______V,内电阻为r=______Ω;

(5)若要利用给出的器材通过实验描绘出小灯泡的伏安特性曲线,请你在虚线框内画出实验电路.要求实验测出的数据尽可能多;

(6)将步骤(4)中得到的数据与步骤(5)得到的数据在同一U~I坐标系内描点作图,得到如图(丁)所示的图线a、b,如果将此电源与小灯泡组成闭合回路,此时小灯泡的实际功率为______.

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