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问题 填空题

如图所示，某商场一批顾客乘坐自动扶梯上楼，自动扶梯由电动机带动匀速运动。电动机的电阻为r，两端的电压为U，工作电流为I，上楼时间为t，在此过程中，电动机消耗的电能为           ，产生的热量为                。

答案

UIt     I2rt

改错题

第Ⅱ部分

五、短文改错（满分10分）：

假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1. 没处错误及其修改均仅限一词。

2．只允许修改10处，多者（从11处起）不记分。

Last night when Steven and I was having a walk in the street, we suddenly heard a painful cry for help under a tree nearby. We quickly ran to the tree and found a boy laying on the ground with a stick in his leg. He had fallen of the tree. Steven suggested we pulled the stick out at once, but I disagreed, Because I had learned little about first aid at school. The stick in the leg would help controlling the bleeding. As there was no telephone, we managed to find a taxi. We took the boy to a nearest hospital. The doctors examined the boy fast and we got to know where the boy lived. So we telephoned his parents and left after he came to the hospital. We did a good deed.
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单项选择题

“一战”前，资产阶级竭力向民众灌输这样一种意识：“资本家的事业就是全民族的事业”，这里的“资本家的事业”是指（）

A.维护资产阶级统治秩序

B.捍卫全人类的利益

C.对外扩张，开拓海外市场

D.维护民族的独立
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