2021年12月英語六級聽力真題第2套-短文1

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1、聽力選項：

Questions 9 to 11 are based on the passage you have just heard. 
9. A) They use their sense of hearing to capture their prey
B) Their food mainly consists of small animals and fish.
C) They have big eyes and distinctive visual centers.
D) Their ancestor is different from that of micro bats.
10. A) With the help of moonlight
B) By means of echolocation.
C) With the aid of daylight vision
D) By means of vision and smell.
11. A) To make up for their natural absence of vision.
B) To adapt themselves to a particular lifestyle
C) To facilitate their travel over long distances.
D) To survive in the ever-changing weather

2、聽力原文和翻譯：

The saying "blind as a bat" simply isn't correct.
The truth is that all 1,100 bat species can see and often their vision is pretty good, although not as excellent as other night-hunting animals.
There are two main groups of bats, which are believed to have evolved independently of each other, but both from a common ancestor.
The first group, known as“mega bats", are mostly medium-sized or large bats who eat fruits, flowers, and sometimes small animals or fish.
These species have distinctive visual centers and big eyes.
They use senses of vision and smell to capture their prey.
For example, Flying Foxes not only see well during daylight, but can also distinguish colors.
They actually rely on their daylight vision and cannot fly during the night with no moonlight.
The second group, called "micro bats", are smaller in size and mostly eat insets.
These species use echo location to find their way and identify food.
Scientists have proven that despite their poorly developed small eyes, these bats still can see during the day.
When we consider the nightly lifestyle of these bats, we will see they have to be sensitive to the changing light levels because this is how they sense when to start hunting.
Moreover, vision is used by micro bats to travel over long distances beyond the range of echo location.
So the truth is, there are no bats which are naturally blind.
Some species use their sense of hearing more than their eyes as a matter of adaptation to a particular lifestyle, but their eyes are still functional.
Questions 9 to 11 are based on the passage you have just heard.
Q9: What do we learn about mega bats?
Q10: How do micro bats find their way and identify food?
Q11: Why do some species of bats use their sense of hearing more than their eyes?
文章1
俗語“像蝙蝠一樣瞎”根本就是不正確的。
事實上，1100種蝙蝠都能看得見，而且它們的視力通常非常好，只不過不如其他夜間狩獵動物那么出色罷了。
蝙蝠主要有兩大類，人們認為它們是從同一祖先獨立進化而來的。
第一類被稱為“巨型蝙蝠”，多為中型或大型蝙蝠，以水果、鮮花為食，有時也捕食小動物或魚類。
這些物種具有獨特的視覺中心和大眼睛。
它們使用視覺和嗅覺來捕捉獵物。
例如，狐蝠在白天不僅能看得清楚，還能分辨顏色。
它們實際上依靠晝視覺，在沒有月光的夜間則無法飛行。
第二類被稱為“微型蝙蝠”，體型較小，主要吃昆蟲。
這些物種使用回聲定位來尋找方向并識別食物。
科學家已經(jīng)證明，盡管這些蝙蝠的小眼睛發(fā)育不良，但是它們在白天仍然可以看到東西。
當我們考慮這些蝙蝠的夜間生活方式時，我們會發(fā)現(xiàn)它們必須對不斷變化的光線水平保持敏感，因為它們通過這種方式感知何時開始捕食。
此外，微型蝙蝠在進行超出回聲定位范圍的長途飛行時，也使用視覺。
所以事實是，沒有天生看不見的蝙蝠。
有些種類的蝙蝠為了適應特定的生活方式，更多地使用聽覺而不是視覺，但它們的眼睛仍然能看見。
請根據(jù)你聽到的文章回答問題9至問題11。
問題9：關(guān)于巨型蝙蝠，我們了解到什么？
問題：微型蝙蝠如何尋找方向并識別食物？
問題11：為什么有些種類的蝙蝠更多地利用聽覺而不是視覺？

3、答案解析：（圖片格式點擊放大）

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