Question

【題目】UCLA scientists report for the first time on the only known frog species that can communicate using purely ultrasonic(超聲）calls, whose frequencies are too high to be heard by humans. Known as Huia cavitympanum, the frog lives only on the Southeast Asian island of Bomeo(婆羅洲）.

Ultrasounds are high-pitched sounds more than 20 kilohertz(kHz) in frequency, which exceeds the upper limit of sounds detectable by humans and is far higher than the 5 to 8 kHz frequencies most amphibians (兩棲動(dòng)物)，reptiles and birds are capable of hearing or producing. Key parts of the ear must be specially adapted to detect ultrasounds.

The frogs can hear sounds up to 38 kilohertz, the highest frequency that any amphibian species has been known to hear, the scientists report. Humans can hear up to about 20 kHz and typically talk at 2 or 3 kHz.

While most of the more than 5，000 frog species worldwide have eardrums that are flat on the side of the head, Huia cavitympanum has eardrums recessed in the side of the skull, similar to mammals.

Peter Narins, UCLA distinguished professor of physiological science and of ecology and evolutionary biology, and Victoria Arch, a UCLA graduate student in ecology and evolutionary biology, spent several nights in the remote area where the frogs live.

" We had very little information suggesting that they would be in this location，" said Arch, lead author of the study. " We found them our first night out. "

The study was published on April 29 in the online journal PLOS ONE, a publication of the Public Library of Science, and is available at
http://dx. plos. org/10. 1371/journal, pone. 05413.

【1】 Huia cavitympanum mainly live __________.

A. in all over the world

B. in many parts of China

C. only on the Southeast Asian island of Borneo

D. only on the certain countries' marsh

【2】 This kind of new-found frog can hear each other with up to __________ kHz ultrasounds.

A. 2-3 B. 5 -8

C. more than 20 D. 38

【3】 If people can hear ultrasounds as frogs do, they should __________.

A. hear as frogs do carefully

B. have a pair of good enough ears like frogs

C. concentrate their energy on them

D. turn them into common sounds

【4】 According to the passage we can infer that __________.

A. the result of study is concluded not easily

B. some scientists have done a lot of work for the result

C. all the frogs have the ability with 38 kHz frequency

D. this kind of frogs is as important as animals

【5】 This passage probably appears __________.

A. on the newspaper B. on the textbook

C. on the website D. on the report

Answer 1

【答案】【1】C

【2】D

【3】B

【4】A

【5】C

【解析】[語(yǔ)篇解讀]據(jù)美國(guó)物理學(xué)家組織網(wǎng)站報(bào)道，美國(guó)科學(xué)家最近在婆羅洲島發(fā)現(xiàn)了一種奇特的青蛙，這種名為凹耳胡蛙（Huiacavitympanum)的青娃可以通過(guò)超聲波來(lái)互相交流。這一新發(fā)現(xiàn)對(duì)于治療人類(lèi)聽(tīng)力障礙具有重要的啟發(fā)意義。

【1】細(xì)節(jié)判斷題。根據(jù)文章第一段Known as Huia cavitympanum, the frog lives only on the Southeast Asian island of Borneo可知，以“凹耳胡蛙”而聞名的青娃僅僅生活在馬來(lái)西亞婆羅洲亞洲島東南一帶。

【2】細(xì)節(jié)理解題。根據(jù)文章第三段The frogs can hear sounds up to 38 kilohertz , the highest frequency any amphibian species has been known to hear可知，青蛙相互之間可以聽(tīng)到髙達(dá)38kHz的超聲波所傳遞的信息。

【3】細(xì)節(jié)判斷題。根據(jù)文章第二段Key parts of the ear must be specially adapted to detect ultrasounds 可知,要想聽(tīng)到足夠髙的超聲波，就必需得有一雙好耳朵。

【4】推理判斷題。根據(jù)文章倒數(shù)第二段“We had very little information suggesting that they would be in this location. ” “ We found them our first night out”可知，人們開(kāi)始對(duì)這種青蛙幾乎不了解，不知道它們是否在這個(gè)地區(qū)，找到它們用了整個(gè)晚上。

【5】細(xì)節(jié)判斷題。根據(jù)文章最后一段The study was published on April 29 in the online journal PLOS ONE, a publication of the Public Library of Science, and is available at http: //dx. plos. org/10. journal, pone. 0005413. 可知，這篇文章發(fā)表在網(wǎng)站上。