试题题干
Translate the following sentence into Chinese.
Finally she looked up, showed no reaction – no smile, no warmth – and said, “Sign in!”
参考答案
试题解析
考点：look up 抬头；no reaction没有反应；smile微笑；warmth热情； sign in签到。
句子结构：第一句主干为she looked up and said，showed no reaction修饰主语she，no smile, no warmth为插入语解释no reaction。