社会化进程在不断的加快，经济也在飞速的发展，不管你承不承认，你每天都要和钱打交道，你的行为也造成了种种经济学现象。那么在托福口语考试中，关于经济类的话题该怎样解题呢?本次，前程百利小编就来和大家分享一下这则托福综合口语解析，希望可以帮助大家在托福综合口语考试中提升答题技巧和方法!
Listen to part of a lecture in an economics class.
(female professor) So, when we talked about the demand for a product, we’re referring to how much consumers want to buy it, right? And often the demand for a product is influenced by its price; the more expensive it becomes the less chance people want to buy it.
OK, ①but that’s not the whole story. Sometimes the demand for a product can also be influenced by the price of other related products.
②First, there are other products called “substitute goods”. If products can be substituted for one another then, um, well, then they are called substitute goods. They are similar enough to be interchangeable. And, uh, the increase of price of one means the increase for the demand of the other. ③Like, uh, like butter and margarine. They are pretty much used for the same purposes. Margarine’s butter’s substitute and you can bake equally well with either. ④Well, when the price of butter goes up, it becomes less affordable, and so what do people do? They buy margarine instead, right? So, uh, you see, increase of the price of butter increases the demand for margarine.
⑤Now, another instance with the price of one product can influence the demand of another is, uh, is when you have two products that can’t be used without each other.
Those products we call “complement goods”. They complement, or complete, each other, if you will. ⑥Like compact disks and compact disk players. You need both products in order to use either. So if the price of either product increases demand for both is likely to decrease. And if the price of the CD’s goes up, well, demand for them will do down, right? And ⑦because CD’s and CD player complement each other, what will also happen is that the demand for CD player will go down, too.
Question:
Using the points and examples from the talk, explain how substitute goods and compliment goods influence demand for a particular product.
一.范文
In the lecture, the professor talks about how the demand for a product can be affected by the price of another product. When one product is similar enough to replace the other, they are called substitute goods. Take butter and margarine for example, because they are very similar, when the price of either one is increased, the demand of the other would also increase. The second kind of products is called complement goods, which are products that can’t be used without one another. Take the CD player and CDs for example, because you need both products in order to use either, when the price of CDs goes up, the demand for both is likely to decrease, the same happens vice versa.
二.重点句型
1. ①but是转折连词，当听力文章中出现了but的时候，我们需要提起注意，属于听力十三原则中的转折原则。后边一句话表明了这篇文章中要论述的话题，有时候产品的需求也会被与之关的产品的价格所影响。
2. ②first是衔接词，表明作者将要用第一个论点来证明自己的观点。There be句型表示存在，可以互相替代的产品事物价格可以影响彼此的需求。
3. ③like暗示作者将要举例。这里作者用黄油和人造黄油来进行比较，用具体的例子来证明自己的观点。
4. ④when引起了时间状语从句，go up增长;上升;当黄油的价格上升，人们会买人造的黄油来代替。这句话具体的论证了可以相互替代的产品的价格是怎样影响大众对于这两种商品的需求的。
5. ⑤这句话的主干是another instance is when you have two products that can’t be used without each other. When引起了标语从句，that引起了定语从句，先行词是that。另一个一个产品的销量可以影响另一种产品销量的例子是两种产品之间是互补的，缺少另一种产品之后，这种产品是无法使用的。
6. ⑥like表示作者将要举例，用cd和cd播放机来举例。
7. ⑦because引起了原因状语从句，因为CD和CD播放机之间是互补的，what引起了汉族与从句，的那个CD的价格上升的时候，CD播放机的需求也会下降.
三.解析
Listening key.
(1.1) Main idea: how the price of one product can influence the demand for another.
(1.2) Substitute Goods.
(1.2.1) Similar enough to replace one another.
(1.2.2) Butter and margarine.
(1.2.3) An increase of the price of butter will make it less affordable; people will start buying margarine instead; the demand for margarine will increase.
(1.3) complement goods
(1.3.1) Have to work together, can’t be used without one another.
(1.3.2) CD and CD players.
(1.3.3) An increase of price of CD will make people buy less CD; CD has to work with a CD play; the demand for both will decrease.
四.模板
In the lecture, the professor talks about………….
When…… Take ……….
for example, because…………
The second kind of……..
……..is ………..
Take………..
for example, because……….
以上就是前程百利小编要和大家分享的托福综合口语考试中关于经济学话题的解析，希望可以帮助大家提升对于此类问题的解决能力!如果想了解更多备考资料，欢迎登陆前程百利论坛，最后预祝每一位考生都能考出好成绩。
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