2. 职称英语
  3. You will now read a short passage and then listen to a talk on the same academic

You will now read a short passage and then listen to a talk on the same academic

游客2024-01-02  61
问题 You will now read a short passage and then listen to a talk on the same academic topic. You will then be asked a question about them. After you hear the question, you will have 30 seconds to prepare your response and 60 seconds to speak.
Animal Communication
Briefly, animal communication is any behavior on the part of one animal that has an effect on the current or future behavior of another animal. The most obvious form of communication is vocalization. It plays an essential role in many tasks, from mating rituals to warning of danger: from conveying the location of food sources to social learning. Probably the most striking of these involves warning signals. The survival value of warning other species members of the presence of predators and facilitating their escape is obvious. They can also adopt different tactics to cope with the threat, for example gathering into a group to ward off attack.
Now hear a talk on the same subject.
Question: Using information from the reading and the lecture, explain how meerkats vary their alarm signals when facing attacks from different predators.
OK, yesterday we closed with a few remarks about how alarm signals vary depending on the nature of the threat perceived, especially on the type of predators. Consider the meerkat that lives in Africa’s Kalihari Desert. That’s mostly in Botswana and South Africa, if you cut your geography class.
Meerkats live in groups called mobs. Typically, while other meerkats are outside their burrows foraging or playing, there is one meerkat that stands guard. Researchers have observed how this sentinel’s alarms vary depending on the type of predators. For instance, when large birds like hawks, eagles, owls soar overhead, the guard gives a loud whistling cry that brings his mob mates scampering back to their burrows. But if a snake is spotted, the guard makes more of a barking sound, which has the other animals mustering together, shaking their bodies and scaring off the snake. The show of aggression here is easily accounted for. After all, meerkats are a type of mongoose and at least partially immune to most snake venom...but not to being eaten! No sensible cobra or mamba attacks a meerkat mob.
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答案 The lecture is about animal communication which serves many purposes such as delivering warning signals to other species member about the approaching enemies or making group members get together and scare off the predators.
The professor explains this concept by giving an example of meerkats living in the desert area in his lecture.
According to the lecture, meerkats are very organized and cooperated animals. They usually leave one for standing guard while other members are outside foraging for food. They give different alarms depending on the type of predators. For example, if predators like hawks or eagles approach, the guard gives a loud whistling cry to make other meerkats run back to their burrows. Besides running away, the animals also build defense by making barking sound that makes them get together in order to scare off the enemies like snakes.
解析   Animal Communication动物交流，其定义是：animal communication is any behavior on the part of one animal that has an effect on the current or future behavior of another animal．模版：The reading is about an academic concept called…将标题跟定义带入模版，即是对阅读文章的复述。
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