宾语从句和表语语从句怎么选择连系代词？例1.Do you know ____ he crossed his arms? 2.That is _____ he is worried about? 请分析，谢谢。
热心网友
1.Do you know ____ he crossed his arms?2.That is _____ he is worried about?1题填why,引导宾语从句。“你知道他为什么抱着双臂吗？”2题填what,引导表语从句。“那就是他担心的事情。”连接词的选择取决于句中所缺的句子成分。
热心网友
把先行词代入句子,看成分,再做出判断.