题目内容
【题目】短文改错
假定英语课上老师要求同桌之间交换修改短文，请你修改你同桌写的以下作文，文中 共存10处语言错误，每句中最多有两处，每处错误仅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（^），并在其下而写出该加的词。
删除: 把多余的词用斜线 (\) 划掉。
修改: 在错的词下面画一横线，并在其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。
My math teacher is used to take off his overcoat as soon as he comes into the classroom. After that, he will ask someone answer a question. Instead of giving the answer, he let us solve the problem on his own. He always explains the method clear, and introduces many approach to working out the problem. At first, our class math performance was bad than that of the other class.
However, with his help, we had overtaken them. In addition, he always keeps his word. He used to promise us as if we could perform well, he would buy us a drink. As a result, we achieved our goals and he did which he said.
【答案】
【解析】1.固定搭配：be used to doing sth.习惯做某事，故把take---taking。
2.固定词组：ask sb. to do sth.请求某人做某事，故在answer前加to。
3.句意：代替给答案，他让我们自己解决问题。句子用一般现在时态，主句是he，单数第三人称形式，故把let---lets。
4.句意：靠我们自己解决问题。根据句意可知把his---our。
5.句意：他总是清晰地解释方法。副词修饰动词，故把clear---clearly。
6. many修饰可数名词，故把approach--- approaches。
7.根据than可知句子用比较级，故把bad---worse。
8.句意：在他的帮助下，我们已经赶上了他们。根据句意可知用现在完成时态，主语是we，故把had---have。
9.句意：他过去经常给我们许诺，如果我们表现得好他会给我们买饮料。此处是if引导的条件状语从句，故把as去掉。
10.句意：我们实现了我们的目标，他做了他所说的事情。did后面的宾语从句，缺少引导词，从句缺少宾语，故把which---what。
