编辑:蒲公英小英|来源:网络|发布:2024-09-06 16:29:47
转折原则
举个例子:
What does the professor imply about the design of research experiments that the students might conduct on bird navigation?
A.Well-designed research studies help to explain human as well as bird navigational abilities.
B.Past research studies were mistakenly designed to study only one navigational skill at a time.
C.Students need to be careful to avoid designing experiments that are based on faulty assumptions.
D.Students should try to design experiments that challenge traditional theories about birds' navigational abilities.
听力原文:
I mean even with maps, how often do we get lost?
我意思是,即使有地图,我们还是会经常迷路。
But with birds, they're actually over engineered to be good at navigation.
但是对于鸟类,它们实际上有很多设计,用来擅长导航。
Professor强调学生的personal experience在构思假说的时候没有太大的作用,言外之意就是要提醒学生设计实验要严谨,不用基于主观的猜测,因为有可能是错的,前面也有提到不能用人类来类比动物,整段都有重复。C选项正确。
重复原则
Why does the professor mention a study with gannets?
A.To identify a bird species that does not migrate long distances
B.To explain that some birds fly in spiral patterns until they locate food sources
C.To illustrate differences in behavior between coastal and mountain bird species
D.To demonstrate that some birds use distinctive features of the landscape as a navigation tool
听力原文:
Student: Well, for short distances, you could just memorize the area, use landmarks, like when my friend tells me to turn left after I see the post office to get to his house.
学生:对于短距离,你可以只需记得这区域里,利用地标,比如我的朋友告诉我在看到邮局后左转去他家。
Professor: So when birds are out searching for food, they can memorize landmarks: mountains, rivers, who knows, maybe even the post office.
教授:所以当鸟出去寻找食物时,它们可以记住地标:山脉、河流,甚至可能是邮局。
Studies of gannet have shown that this is one way they navigate.
对塘鹅的研究表明,这就是它们导航的一种方式。
男生说短途的话,鸟可以记住地形landmark来回巢。professor认可这种说法,并且在后面举例gannets来说明它们海岸线来导航回巢,对应D选项。
音量变化:如果在听力材料中某句话的音量突然增大,这通常意味着说话者在强调一个重要的观点或信息。
音调起伏:英语中的音调变化常用于突出信息的重要性。当语调出现明显的升高或降低,这可能预示着关键信息的到来。
停顿与重音:说话者有时在传达重要信息前后会有意识地停顿,或在特定的关键词上使用重音,以吸引听者的注意力。
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