怎么解答托福听力主旨题

在托福听力中，不管是对话还是演讲，第一题都是主旨题，这篇文章主要讨论，怎么解答主旨题。

一、主旨题分类

主旨题分为内容主旨题和目的主旨题，内容主旨题主要是问这篇文章主要内容，主要话题。

出题方式：

What is the lecture mainly about?

What is the main topic of the lecture?

What does the professor mainly discuss?

目的主旨题主要是问文章的主要意图，讲这篇文章的目的。目的主旨题的出题方式：

What is the purpose of the lecture?

Why does the student visit the professor?

Why does the professor discuss x?

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二、主旨题信号词

文章在给出主旨前，通常会有一些信号词，信号词后面的内容就是主旨。来看一下这些信号词。

And to get started I thought I’d mention something…

Today, I want to talk about…

Let’s continue our discussion about…

Before we close today, we need to discuss …

三、主旨题答案出处

托福听力演讲顺序和问题是按顺序的，主旨题的答案一般出现在文章开头。教授在演讲开始时，都会说今天主要讲什么，这就是主旨。有的是教授一开始就会讲今天要讲的主要内容;有的是以复习上节课内容开始，引出今天的主旨;有的是教授先讲一些其他的东西，再来讲主旨。下面举例来看一下。

1、文章一开始就出现主旨

Ok, let’s get started. Great. Today I want to talk about a way in which we are able to determine how old a piece of land, or some other geologic feature is - dating techniques. I’m going to talk about a particular dating technique. Why? Good dating is key to good analysis. In other words, if you want to know how a land formation was formed, the first thing you probably want to know is how old it is. It’s fundamental.

What does the professor mainly discuss?

A The differences in age among American mountain range

B The importance of a technique used for dating geological materials

C The recent discovery of an ancient canyon

D A comparison of minerals used for dating

这道题教授在一开始就提到了主旨就是一个用来测定地理特征的年龄，而且测定地址年龄是很重要的。所以本题答案就是B。

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2、先讲相关内容，引出这次课主旨

As geologists , we examine layers of sediment on the Earth' s surface to

approximate the dates of past geologic time periods. Ah sediment as you

know is material like sand , gravel, fossil fragments that is transported by

natural processes like wind , water flow or the movement of glaciers.

So sediment is transported and then deposited and it forms layers on the

Earth ’ s surface over time. We examine these layers to learn about

different geologic time periods including when they began and ended.

主旨题一半都是第一题，只要考生在听力开始，抓住这些信号词，在平时学习时多加练习，主旨题就很容易了。

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