题目内容

1．I will ask our physics teacher to explain Newton's Second Law of Motion she taught us yesterday．
 That's just ____ most of the students still have doubt．（　　）
A．whatB．whyC．whereD．how

分析 我将会问问我们的物理老师昨天他给我们讲解的牛顿第二运动定律．这正是我们大部分学生仍然不明白的地方．

解答 答案：C．
分析句子的结构及意思可知，本句包含一个表语从句，作is的表语，且此处指的是不理解的地方，用where来引导该表语从句；故选C．

点评 本题考查表语从句，要掌握表语的用法和学会句子成分的分析．

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