2019年9月7日下午托福听力真题原文+题目答案+音频:Ball lightning

最具价值的托福备考资料——托福真题，小编独家奉上。本篇托福真题为2019年9月7日下午其中一篇的Lecture。托福听力真题内容包括托福听力真题原文、MP3听力音频、题目、答案。先来一睹托福听力题目：

2019年9月7日下午托福听力真题原文+题目答案+音频:Ball lightning

（听力原文）

1、What is the main purpose of the lecture

A、 To compare two ways in which lightning forms

B、 To compare various efforts to reproduce a type of lightning

C、 To discuss conflicting eyewitness reports of lightning strikes

D、 To discuss possible causes of a type of lightning
 

2、What point does the professor make about the characteristics of ball lighting

A、 They help explain other atmospheric phenomena

B、 Some of them appear to contradict laws of naturegh

C、 Most of them are similar to those of conventional lighting

D、They do not seem to vary from observation to observation

 

3、According to the professor,why is ball lightning probably not a plasma cloud

Click on 2 answers.

A、 Ball lightning lasts longer than plasma clouds

B、 Ball lightning tend to be larger than

C、 Ball lightning stays closer to the ground than plasma clouds

D、 Ball lightning appears in more colors than plasma clouds