TPO (TOEFL Practice Online) 是美国教育考试服务中心(Educational Testing Service，简称ETS)专为参加托福TPO29口语Task4答题技巧及模版：
Read a passage on Scatter Hoarding from a biology textbook. You will have 50 seconds to read the passage. Begin reading now.
Scatter Hoarding
Many animals live in environments where food is plentiful during certain times of the year and scarce during other times of the year. In such environments, some animals collect and prepare food when it is plentiful, then hoard it – store it – for future use. Some types of hoarders engage in scatter hoarding. Unlike other types of hoarders, scatter hoarders do not store the food all in once place; instead, they scatter it – divide it up and hide it in many different places. Later, at a time when food is scarce, the hoarders return to these hiding places and recover the food.
Now listen to part of a lecture on this topic in a biology class.
Explain how the example from the professor’s lecture illustrates the practice of scatter hoarding.
1、题目关键词：explain the example, the concept
2、答题要领：
(1)briefly state the main idea of the reading passage
(2)concentrating on the idea given by the professor. When orally summarizing the lecture, test takers are supposed to include the main points and some examples as well.
3、阅读材料要点：
(1) Some animals collect and prepare food when it is plentiful, then hoard it – store it – for future use.
(2) Refute-and-persuade means that in advertising a product, the company first indicates its awareness of the product’s disadvantage. But then the company refutes or challenges that disadvantage by demonstrating how the advantage of buying and using the product makes up for any limitation it may have.
4、听力材料要点：
(1) The professor gives an example of a species of squirrel in northeastern United States that does this.
(2) They prepare the nuts, their major source of food, in autumn, when there are plenty of them.
(3) Then they dig holes on the ground and preserve the nuts in them. Instead of digging one big hole, they dig hundreds of them. They put one nut in each hole.
(4) They do this because if some holes were found by other animals, they would still have enough food to survive the winter, when food is scarce.
5、模板：
(1) In this set of materials, the reading passage is (the title of the reading passage) and the listening material is a lecture by a professor on the same topic. 当然，如果你觉得你的听力材料的理解率很高也不用谈及阅读材料中的内容。只是第一段说起来实在太easy了。
(2) In the reading passage, it introduces a concept called…
(3) In the lecture, the professor… 不但要包括观点而且要包括教授所给的例子。
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