託福聽力對話目的主旨題看似簡單，但卻依然存在陷阱，一定要準確識別到文章中的目的主旨才能做到百分百正確率。
那什麼是目的主旨呢？
其實很簡單，目的主旨考查的是對話者的對話目的。
目的主旨典型問法：
Why does the student go to see the professor?
Why does the student visit the registrar’s office?
Why did the professor ask to see the student?
很多學生都有一個常見的誤區，都認為目的主旨出現的位置一定是靠近文章開頭部分的。當然，有相當一部分的文章確實如此，比如：
TPO 52， Conversation 2
Student: I like those ceramic coffee mugs you have on display at the other end of the store. Were they made by students?
Employee：Oh, we only use certain suppliers,wholesalers who've been selected by the store manager.
Student: Do you ever sell things made by students?
1. Why does the woman go to talk to the man?
A. To find out how the store pays artists for their work
B. To purchase some ceramic coffee mugs
C. To find out if the store sells objects made by students
D. To ask about the advantages and disadvantages of consignment sales
在這裡不難看出答案是C選項。我們再來看一下目的主旨在文章中出現的位置：
很明顯，目的主旨出現的位置確實非常靠前。我們再來看下一個例子。
TPO44，Conversation 2
Student: Right now I'm doing the intro courses in the art department, but I'm really interested in painting.
Professor: Well, I teach several of the painting courses … so I hope to see you in the future.
Student: Actually I was wondering … you're in charge of student art exhibitions at the university gallery, right?
Professor: Right.
Student: So, I know all the exhibitors are students, but I was wondering how you choose the works you exhibit every month. Is there, like, a submission process or something?
…
1.Why does the student go to see the professor?
A. To find out whether the university gallery accepts student artwork.
B. To find out how artwork is selected for university gallery exhibitions.
C. To learn the focus of an upcoming exhibition of student artwork.
D. To learn which techniques the professor will cover in his class on abstract art.
根據學生的話，也可以很容易的選到B選項，同樣的，我們也看一下這句話在
文章中的相應位置：
我們也可以看到，目的主旨出現的位置相對於整個音頻來講還是比較靠前的，那我們可不可以這樣認為呢——所有的目的主旨都出現在文章開頭？答案當然是否定的，我們來看兩個例子：
TPO23，Conversation 2
…
Professor: Yeah, I teach one on Joyce every spring. It's such a privilege spending an entire term delving into a single body of work. And my students, they bring so much insight to the table that it's easy to forget who the professor is!
Student: Oh wow...uh, that could actually solve my dilemma, uh, what I originally wanted to ask you! Um, I'm working on my schedule for next term, and I've got room for one more course, and I'd like to take more Literature.Could I take your Master Writer class on Joyce?
…
1.Why does the man go to see the professor?
A. To discuss a grade he received on a paper
B. To get advice about which course he should take next term
C. To ask a question about a reading assignment
D. To request permission to take an advanced course
根據文章內容，B選項也可以很快被選出來，但是再看一下目的主旨句出現的位置：
通過圖片我們能夠很明顯地看到，目的主旨題的出現位置已經到了文章的中後段。
再來看第二個例子：
TPO6，Conversation 2：
…
Professor: You’d be surprised!
Student: So, anyway, my question is, do you think it'd be okay if I did a project like that for my term paper? You know, find students from different parts of the country, record them talking to each other in different combinations, report on how they accommodate their speech or not, that kind of thing?
…
1.Why does student go to see the professor?
A. She is having trouble finding topic for her term paper.
B. She needs his help to find resource materials.
C. She wants to ask him for an extension on a paper.
D. She wants him to approve her plans for a term paper.
根據學生說的話，這道題選D，那這句話在文章中的位置我們再來看一下：
那這個題體現的就更明顯了，目的主旨出現的位置不僅不靠近開頭，反而更靠近結尾。
根據上面的例子來看，目的主旨出現的位置肯定不只是在開頭的，如果我們過於關注開頭而忽略後面內容的話，就會非常容易出錯或是聽丟，大家在之後做題的過程中一定要小心才行，這樣才能確保對話目的主旨題萬無一失。
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