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2025-07-08 03:23 本頁(yè)面
【正文】 ween crocodiles and mammals3. The functions of mother crocodiles’ vocalization: to ensure their babies follow her. 八、聽(tīng)力文本 Narrator: Listen to part of a lecture in a Biology class. Professor: OK. For today, let39。s look at a reptile, a predator that hasn39。t evolved much in the last seventy million years. No discussion of reptiles would be plete without some mention of crocodiles.（教授開(kāi)門(mén)見(jiàn)山提出講座的主旨：a predatorcrocodiles，其中today, let’s look at...就是主旨句的提示句型。）Now, we tend to think of crocodiles as, uh, kind of solitary, hiding out in a swamp, uh, kind of mysterious creatures. But we are finding out that they aren39。t as isolated as they seem. In fact, crocodiles interact with each other in a variety of ways. One way is with vocalizations, you know, sounds generated by the animal. （一些?？嫉募?xì)節(jié)題提示詞有now, but, in fact，這部分全都有，但是前邊的now和but都是為了引出in fact，而且in fact后面指出來(lái)了有多種交流方式，其中一種是：vocalization，那么要注意一下可能會(huì)有另外的交流方式出現(xiàn)。但是事實(shí)上通過(guò)聽(tīng)全文沒(méi)有提及其他的方式。）This is true of the whole crocodile family, which includes crocodiles themselves, alligators, etc.Take American alligators. （這里take做的是介詞，舉例子的意思，注意聽(tīng)力中舉例子處可能出一道細(xì)節(jié)題，也可能是個(gè)作者意圖態(tài)度題：Why does the professor talk about the American alligators?To show the function of vocalization.）If you were to go to a swamp during the breeding season, you39。d hear a chorus of sounds, deep grunts, hisses, these are sounds that male alligators make. And some of them are powerful enough to make the water vibrate. This sends a strong, goaway message to the other males. So the alligator can focus on sending other sound waves through the water, sound waves that you and I couldn39。t even hear since they are at such low frequency. But they do reach the female alligator, who then goes to find and mate with the male.（這里這兩處給出來(lái)了the function of vocalization，就是第7題的答案。）Vocalization is um...well, it is used for other reasons, like getting attention or just, um... letting others know you are distressed. （這里的other reasons提醒下文主要講解vocalization的另外幾個(gè)目的：1）getting attention 2）letting others know you are distressed。綜合上文可以出一個(gè)Except題：All of the followings are about the functions of crocodiles’ vocalization except?
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