求托福蓝Delta Test1口语Question4答题模板 Question: The professor describes the large ears of

1、题目关键词：explain
2、答题要领：
(1)summarize the concept of homeostasis.
(2)use the example of the rabbit to explain.
3、阅读材料要点：
(1)Homeostasis is an animal’s ability to maintain body equilibrium by adjusting its physiological processes.
(2)Homeostatic systems protect an animal’s body from harmful changes.
4、听力材料要点：
(1)The rabbit can regulate the amount of blood flowing through blood vessels of its ears in order to maintain the stability of body temperature.
(2)When the blood vessels in the ears expand, more heat is lost through the ear skin surface, so the body temperature can go down. On the other hand, when the blood vessels constrict and send the blood back to deeper parts of the body to prevent heat loss.
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 on this topic.
(2)The reading material mainly introduces ...
(3)In the listening material, the professor discusses ...
(4)First,... Second,...