托福英语听力Part长对话
考试当天你将会碰到如下的答题提示：
Directions: In this part of the test you will hear longer conversations. After each conversation you will hear several questions. The conversations and questions will not be repeated.After you hear a question, read the four possible answers in your test book and choose the best answer. Then, on your answer sheet, find the number of the question and fill in the space that corresponds to the letter of the answer you have chosen.Remember, you are not allowed to take notes or write in your test book.
策略
逆向搜索法不太适合较长的对话和段落题，因为每个段落的后面接下来有3至4个问题.充分利用Direction旁白时间，尽量事先浏览一下答案的选项，对这篇文章中会用到的一些词汇有个提前的熟悉。
策略1
（针对听力能力较差的考生）当磁带在放的时候，闭上你的眼睛全神贯注于对话的主题（中心思想），不必担心你没有每个词都听懂，尽量去理解这个对话是关于什么的，说话的人是谁，然后根据你对文章大意的把握答题。
策略2
（针对听力能力较高的考生）当磁带在放的时候，听对话或演讲的大意，同时留意细节.注意特别的人，物，地点和事件.同样要想说话的人是谁，他们的关系是什么.因为后面出题时经常用原字或者原词（一般不会用不同的词，即同义词复述）。这一部分的难度很大程度上来自记住所有的细节，因为考试时规定你不能做记号。所以当你练习的时候要注意训练这种能力。（当然你要是写一点记号也是可以的，做完题后擦掉就行了。）
考点及题型
中心思想题/场景题；复述题；暗示推理题。?
1999年1月Part B考题（第31-34题）
PART OF A TELEPHONE INTERVIEW
* Dr. Thomas? This is Keet Bradley from the daily news. I'd like to ask you some questions about the new official standard weight that you purchased.
* I'd be happy to help you. What would you like to know?
* First of all, how was the standard weight used?
* Well, the people in our department use it to check the scales all over the country. The department of weights and measures, we are a government agency. It's our responsibility to see that all the scales measure a kilogram accurately so this is the way we use to adjust the scales.
* How did you check the scales before?
* We have an old standard weight that we used to use. It had to be replaced bec