选修8 unit 2 Cloning
1．(2012·重庆高考)Evidence has been found through years of study______children’s early sleeping problems are likely to continue when they grow up .
A．why B ．how
C．whether D．that
解析：句意：经过多年的研究，证据已经被找到，孩 子们的早期睡眠问题在长大后可能会继续。分析题意可知children’s early sleeping problems are...grow up是 Evidence的同位语，而从句中不缺少句子成分，故用that引导该同位语从句。
答案：D
2．—I’m tak ing a taxi to the airport to pick up my daughter.
—______？ I can give you a lift.
A. Why not B. What for
C. Why bother D. How come
解析：why bother何苦，没有必要。句意：——我要打的去飞机场接我的女儿。——没必要，我可以送你。
答案：C
