名词性从句-主语从句1. What is needed for the space trip is careful preparation. 2. Her wish is that she can lose weight soon. 3. I think that woman can reach every high achievements in many fields of science. 4. We were very excited at the news that our team had won. 引导名词性从句的关联词可分为三类: 一从属连词:that(无任何词意)whether, if(均表示“是否”表明从句内容的不确定性)as if ,as though(均表示“好像”,“似乎”)以上在从句中均不充当任何成分 二连接代词:what, who, whom, which,whose, whatever, whoever, whichever(作主宾表定) 三连接副词:when, where, how, why(