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時(shí)間:2021-07-29
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聽(tīng)力,聽(tīng)力就是要多聽(tīng),與“書(shū)讀百遍,其義自見(jiàn)”的道理一樣,聽(tīng)得多了,自然就能聽(tīng)得懂了。留學(xué)監(jiān)理網(wǎng)小編為大家整理了劍橋雅思13真題聽(tīng)力中英文對(duì)照文本,并附有原文音頻。大家一定要先自己聽(tīng)聽(tīng),聽(tīng)不懂的再去看文本哦!
以下是劍橋雅思13真題聽(tīng)力第24期:Test3(section4-2)中英文對(duì)照文本及音頻。
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>>>點(diǎn)擊在線試聽(tīng):
劍橋雅思13真題聽(tīng)力第24期:Test3(section4-2)音頻(部分).mp3
>>>點(diǎn)擊下載完整音頻:
劍 橋雅 思 13真題聽(tīng)力第24期:Test3(section4-2)音頻.mp3
Observations of these lizards in the wild have also revealed that their mating habits are quite unusual.
Unlike most animals, it seems that they're relatively monogamous, returning to the same partner year after year.
And the male and female also stay together for a long time, both before and after the birth of their young.
It's quite interesting to think about the possible reasons for this.
It could be that it's to do with protecting their young
you'd expect them to have a much better chance of survival if they have both parents around.
But in fact observers have noted that once the babies have hatched out of their eggs,
they have hardly any contact with their parents.
So, there's not really any evidence to support the idea.
Another suggestion's based on the observation that male lizards in monogamous relationships tend to be bigger and stronger than other males.
So maybe the male lizards stay around so they can give the female lizards protection from other males.
But again, we're not really sure.
Finally, I'd like to mention another study that involved collecting data by tracking the lizards.
I was actually involved in this myself.
So we caught some lizards in the wild and we developed a tiny GPS system that would allow us to track them,
and we fixed this onto their tails.
Then we set the lizards free again, and we were able to track them for twelve days and gather data, not just about their location.
But even about how many steps they took during this period.
One surprising thing we discovered from this is that there were far fewer meetings between lizards than we expected.
It seems that they were actually trying to avoid one another. So why would that be?
Well, again we have no clear evidence, but one hypothesis is that male lizards can cause quite serious injuries to one another.
So maybe this avoidance is a way of preventing this — of self-preservation, if you like.
But we need to collect a lot more data before we can be sure of any of this.
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對(duì)野外的這些蜥蜴的觀察也表明,他們的交配習(xí)慣也非常特殊。
不像大多數(shù)動(dòng)物一樣,它們看起來(lái)更像是一夫一妻制,每年都會(huì)回到相同的伴侶那里。
而且雌性和雄性也會(huì)一起呆很長(zhǎng)一段時(shí)間,在它們的孩子出生前后。
想想可能的原因非常有趣。
可能是為了保護(hù)它們的孩子
如果父母都在身邊的話,它們的生存率會(huì)更高。
但是實(shí)際上,觀察者發(fā)現(xiàn)一旦它們的孩子破殼而出,
它們和父母幾乎很少進(jìn)行接觸。
所以,沒(méi)有什么證據(jù)能夠支撐這個(gè)想法。
另一個(gè)想法是基于一夫一妻制的雄性蜥蜴比其他的雄性更大、更強(qiáng)壯的觀察。
所以可能雄性蜥蜴待在左右,才能保護(hù)雌性蜥蜴遠(yuǎn)離其他的雄性。
但是同樣的,我們也不是很確定。
最后,我想說(shuō)一下另外一個(gè)研究,這個(gè)研究通過(guò)追蹤蜥蜴收集了很多數(shù)據(jù)。
我自己也參與了這項(xiàng)研究。
我們從野外抓了一些蜥蜴,而且開(kāi)發(fā)了一種微型GPS系統(tǒng)能讓我們追蹤它們,
然后把它放到了蜥蜴的尾巴上。
然后我們放生了這些蜥蜴,追蹤了它們長(zhǎng)達(dá)十二天,收集到一些數(shù)據(jù),不僅僅是它們的位置。
甚至包括在這個(gè)期間它們走了多少步路。
我們從中發(fā)現(xiàn)的一件非常令人驚喜的事情就是,蜥蜴之間的碰面比我們預(yù)想的要少很多。
看起來(lái)他們盡量避免和其他蜥蜴接觸。為什么呢?
我們也沒(méi)有明確的證據(jù),但是一個(gè)假設(shè)是雄性蜥蜴會(huì)給對(duì)方造成嚴(yán)重傷害。
所以這種避免接觸可能是一種避免傷害的方式,或者是自保的方式。
但是在我們確定之前,我們需要收集更多的數(shù)據(jù)。
重點(diǎn)單詞:
partner['pɑ:tn?]n. 搭檔,伙伴,合伙人
survival[s?'vaiv?l]n. 生存,幸存者
hypothesis[hai'p?θisis]n. 假設(shè),猜測(cè),前提
tend[tend]v. 趨向,易于,照料,護(hù)理
avoidance[?'v?id?ns]n. 避免
evidence['evid?ns]n. 根據(jù),證據(jù)v. 證實(shí),證明
protection[pr?'tek??n]n. 保護(hù),防衛(wèi)
track[tr?k]n. 小路,跑道,蹤跡,軌道,樂(lè)曲v. 跟蹤
observation[.?bz?'vei??n]n. 觀察,觀察力,評(píng)論
collect[k?'lekt]v. 收集,聚集
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