【题目】假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有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：在错的词下画一横线，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。
Usually two types of students tended to be inactive in classrooms: some are natural shy; some are not learning or haven’t prepared at all. Some shy students who do have great ideas and understanding, but they are not used to volunteer to speak. You may wish to wait a chance to be called. Teachers can take opportunity to encourage or invite them to give their views. But for the latter, requiring them to speak may be embarrassed because they usually know nothing. Group work is the good method to encourage students to talk, for it would be easy to talk to a small number of people than to a big class, and to classmates than to teachers.
在线课程【答案】
【解析】1.句意：通常两种类型的学生在课堂上不活跃---。根据句意可知句子用一般现在时态，主语是two types of students，故把tended---tend。
2.副词修饰形容词，故把natural--- naturally。
3.文章第二句Some shy students who do have great ideas and understanding, but they are not used to volunteer to speak.是并列句，前半句应该是一个简单句，而不是定语从句，故把前半句中的who去掉。
4.be used to doing sth.习惯做某事，故把volunteer--- volunteering。
5.句意：他们可能希望等待一个被召唤的机会。可知把You---They。
6. 句意：他们可能希望等待一个被召唤的机会。wait for等待---，故在wait后面加for。
7.句意：教师可以利用机会鼓励或邀请他们发表自己的观点。可知此处用名词的复数形式，故把opportunity--- opportunities。
8.句意：但对后者来说，要求他们说话可能会让人尴尬，因为他们通常什么都不知道。此处是“可能是令人尴尬的” ，故答案为embarrassing。
9.句意：小组工作是鼓励学生交谈的好方法。根据句意可知把the---a。
10.根据than可知此处用形容词的比较级，故把easy---easier。