TOEFL TPO 口语第48套Question 4
Question:
Using the example from the lecture, explain the concept of optimal foraging.
1、题目关键词：using the example, explain, the concept of optimal foraging
2、答题要领：
(1)Briefly state the concept of optimal foraging.
(2)Use the example in the lecture to illustrate the concept.
3、阅读材料要点：
(1)Animals lose energy in the process of obtaining food.
(2)To save energy, animals will minimize the energy they expend in the foraging process and maximize the nutritional benefits.
(3)The act is known as optimal foraging.
4、听力材料要点：
(1)There’s a bird that feeds on a type of shellfish that has a hard outer shell.
(2)When the bird preys, it carefully selects only the biggest shellfish.
(3)To crack the shellfish and then eat the meat, the bird carries the shellfish to a certain height,no more, no less, and then drop it.
(4)In this way, the bird expends only the right amount of energy that it needs to obtain the food.
5、模板：
(1) In this set of materials, the reading passage introduces the concept of optimal foraging and the listening material is a lecture by a professor on an example about the topic.
(2) The reading passage introduces a concept of optimal foraging
(3) In the lecture, the speaker illustrates an example of a bird to explain the concept of optimal foraging further