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    8．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文．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．
    Yesterday，I saw the old lady fall down when I was hurrying to school．I was about to help her up while suddenly a passer-by stop me，saying that I might be accused of knocking him down．Heard his words，I began to he sitate and slowed down my step．At the same time，another student，who saw everything，went up to help．The old lady said nothing but lots of thanks to the good boy．I felt ashamed．
    As is know to all，helping others are forever a good virtue．Even some old people are becoming i mmoral（不道德的），we can't let it to disappear．

    分析 作者讲述了在上学路上遇见一位老人摔倒了，想去帮她起来却又怕被讹，犹豫之时另外一位学生上前把老人扶起来，老人非常感激．对此作者感触很深：助人为乐永远都是优良传统，尽管有些老人变得不道德，但是这个传统却不能丢失．

    解答 Yesterday，I saw the old lady fall down when I was hurrying to school．I was about to help her up while suddenly a passer-by stop me，saying that I might be accused of knocking him down．Heard his words，I began to hesitate and slowed down my step．At the same time，another student，who saw everything，went up to help．The old lady said nothing but lots of thanks to the good boy．I felt ashamed．
    As is know to all，helping others are forever a good virtue．Even∧some old people are becoming immoral（不道德的），we can't let it to disappear．
    详解：
    1．the改为an；考查冠词，"一个老太太"，泛指应用不定冠词，元音音素前用an．
    2．while改为when；考查固定用法，when suddenly是固定用法，表示一件事在进行中突然发生了另外一件意外的事．
    3．stop改为stopped；考查动词的时态，此处叙述过去的事情，应用一般过去时．
    4．him改为her；考查人称代词，此处代词指代文中提到的the old lady，故用her．
    5．heard改为hearing；考查分词作状语，hear与句子主语I之间为主动关系，应用现在分词形式作状语．
    6．step改为steps；考查名词单复数；step是可数名词，根据句意"我放慢了脚步"要用复数形式steps．
    7．know改为known；考查动词语态，as指代主句helping others is forever a good deed，与动词know是动宾关系，故用know．
    8．are改为is；考查主谓一致；动名词短语helping others 做主语，谓语动词用单数形式is．
    9．even后面加though/if；考查让步状语从句，even是副词，意为"甚至于"，根据句意"尽管有些老人变得不道德…"，这里要用though/if引导让步状语．
    10．去掉to；考查动词不定式，let 后面跟省to不定式．

    点评 整体理解短文，充分运用所学的基础知识，包括一些实词和虚词的用法，固定短语搭配，习惯性用法，结合上下文整体关系，找出错误并加以修正．

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