-Yeah, but I have no idea ________ he did it; that's one of his favorite universities. (重庆2014)

2. The only way to succeed at the highest level is to have total belief ________ you are better than anyone else on the sports field. (浙江2013)

【点拨】

1. why。设空处引导同位语从句，解释idea的具体内容，且由that's one of his favorite universities可知，设空处表原因，故填why。

2. that。设空处引导同位语从句，解释belief的具体内容，且从句结构和意义均完整，故填that。

说明：以上所选高考真题形式有所改动。

【即学即练】用适当的连接词填空。

1. My happiest moment was ________ I received my salary for the first time.

2. Ann remembered her promise to her friend ________ she would be punctual.

3. What we'll do is leave a note for Mum to tell her ________ we won't be back till late.

4. It's not clear ________ Carl has done all the work himself or has had any assistance.

答案

1. when 2. that 3. that 4. whether