The speaker raised his voice so that everybody in the hall could hear him clearly．Which of the following is WRONG in meaning？
A.The speaker raised his voice in order to hear clearly．
B.The speaker raised his voice because hewanted everybody in the hall to hear him clearly．
C.The speaker raised his voice，so everybody in the hall could hear him clearly．
D.The speaker raised his voice so as to let everybody in the hall hear him clearly．
网友回答
A解析分析：A项hear的动作要成为句子主语the speaker的动作，这就不对了。(延伸)so that从句中的主语可能和主句的主语是一致的(He stopped so that he could have a rest．)，也可能不一致(如本句，主语分别是the speaker和everybody)，如果不一致，在改为用动词不定式时，要用D项的so as to(in order to)let sb do sth的形式。