1、which 或者 whatwhich (what) 作為從句的主語,整個從句which(what) puzzled all of us 修飾 question的2、that分析從句 主謂賓齊全,而且so .that.一般作為固定用法,翻譯為 太.以至于.so beauiful a girl that eve...Yesterday our chemistry teacher teacher asked so difficult a question __as__puzzled all of us.答案是as怎么解釋？so....as意思也是太......以至于.....The girl was so excited as to shout herself hoarse. 那女孩太興奮了，以至于嗓子都喊啞了。 so....that....所在句子是帶結(jié)果狀語從句的復(fù)合句, 而so....as......所在句子是簡單句Just now they were so happy that they jumped. 可改為: Just now they were so happy as to jump. 題中橫線后面it puzzled all of us，是完整的句子，應(yīng)該填that。