托福阅读修辞目的题是阅读考试中比较常见的一种题型，tpo则是托福阅读备考最权威的材料，所以托福小编综合二者，为大家集中整理了tpo阅读中考察的修辞目的题及其对应的解析，供大家参考使用。本文带来的是TPO30-3的修辞目的题，一起来看看吧。
TPO30-3 The Invention of the Mechanical Clock
Paragraph 1: In Europe, before the introduction of the mechanical clock, people told time by sun (using, for example, shadow sticks or sun dials) and water clocks. Sun clocks worked, of course, only on clear days; water clocks misbehaved when the temperature fell toward freezing, to say nothing of long-run drift as the result of sedimentation and clogging. Both these devices worked well in sunny climates; but in northern Europe the sun may be hidden by clouds for weeks at a time, while temperatures vary not only seasonally but from day to night.
1.Why does the author provide the information that ”in northern Europe the sun may be hidden by clouds for weeks at a time, while temperatures vary not only seasonally but from day to night”?
O To emphasize the variety of environments in which people used sun and water clocks to tell time
O To illustrate the disadvantage of sun and water clocksO To provide an example of an area where water clocks have an advantage over sun clocks
O To counter the claim that sun and water clocks were used all over Europe
解析：从第一段的第二句开始，原文列举了这两种device各种的缺点，最后一句前半句说它们work，后面but表转折，证明要说有些情况它们不能用。所以选择B。A说人们在各种情况下都在使用这两种方法，与原文表达的意思相反，C将两种方法比较，原文没有这层意思。D整个和划线部分相反，原文说在northern Europe不能用。
【1】在欧洲，在机械表被引入以前，人们利用太阳(比如棍子的影子和日晷)和水钟来确定时间。当然，太阳钟只能用于晴天使用，而水钟表在水温下降到冰点时会出错，长期漂浮的东西因为下沉或堵塞而无法工作。这两种仪器在晴天都运行的很好，但北欧，太阳可能会藏在云后长达一周，同时，温度不仅会随季节中变化，也因昼夜而不同。
以上就是托福阅读TPO30-3中的修辞目的题及其解析，大家可以在备考的时候参考复习，希望能够帮助大家的考前准备。最后前程百利祝大家都能取得理想的托福考试成绩。
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