问题
单项选择题
What is the speaker’s problem().
A.He knows nothing about engineering.
B.He wants to postpone the presentation.
C.He never spoke to high school students before.
D. He is not yet ready for the presentation.
答案
参考答案：D
解析：
[听力原文] I am speaking to a group of high school students about engineering this afternoon. But I have no idea how I am going to simplify some of the concepts for them.
[分析]： 理解推断。 根据原文“I am speaking to a group of high school students about engineering this afternoon．But I have no idea how I am going to simplify some of the concepts for them．”，译文为：今天下午我要对一群高中生讲解工程学。但是我不知道怎样为他们简化一些概念。据此可以推断文章对于怎样讲演还没有把握，所以选d“他没有准备好作报告。”。a选项为“他对于工程学一无所知。”， b选项为“他想推迟作报告。”，c选项为“他以前从未对高中生做过讲演。”。