[单项选择]Although vocal cords are lacking in cetaceans, phonation is undoubtedly centered in the larynx.
The toothed whales or odontocetes (sperm whales and porpoises) are much more vociferous than the whalebone whales, or mysticetes. In this country observers have recorded only occasional sounds from two species of mysticetes (the humpback and right whale). A Russian cetologist reports hearing sounds from at least five species of whalebone whales but gives no details of the circumstances or descriptions of the sounds themselves. Although comparison of the sound-producing apparatus in the two whale groups cannot yet be made, it is interesting to note that the auditory centers of the brain are much more highly developed in the odontocetes than in the mysticetes, in fact, to a degree unsurpassed by any other mammalian group.
Which of the following animals has the most highly developed auditory center in the brain
A. Elephants.
B. Humpback whales.
C. Racoons.
D. Sperm whales.

[单项选择]Although vocal cords are lacking in cetaceans, phonation is undoubtedly centered in the larynx.
The toothed whales or odontocetes (sperm whales and porpoises) are much more vociferous than the whalebone whales, or mysticetes. In this country observers have recorded only occasional sounds from two species of mysticetes (the humpback and right whale). A Russian cetologist reports hearing sounds from at least five species of whalebone whales but gives no details of the circumstances or descriptions of the sounds themselves. Although comparison of the sound-producing apparatus in the two whale groups cannot yet be made, it is interesting to note that the auditory centers of the brain are much more highly developed in the odontocetes than in the mysticetes, in fact, to a degree unsurpassed by any other mammalian group.
The noises produced by whales ______.
A. are produced in the upper part of the windpipe
B. are louder than those of other sea animals
C. are used to locate their mates
D. can be heard only by other whales

[简答题]Part 2&3object electronic equipment: the cell phone/mobile phone a website that you find useful the furniture you like in your family/sth u’d like to collect an old thing your family has kept for a long time an interesting wild animal an advertisement that you think is successful the type of clothes you like to wear a product you want to buy from another country an important letter you received from others something you had lost before a gift you bought for others/for your friends an important photograph of your family

[单项选择]I' m amazed that the young actress married the photographer so soon, for she______ him very well.

[单项选择]Lacking ______ sensibility because of unique upbringing, Monica does not care about right and wrong.


A. amoral
B. immoral
C. moral
D. immortal

[填空题]
· Look at the form below.
· You will hear a man phoning about some repairs.

[填空题]Employees are not allowed(make) ______personal phone calls in the office.

[单项选择]Although fish have no vocal organs, they still are able to make noises.
A. signals
B. bubbles
C. sounds
D. ripples

[单项选择]The Eco Trust has been a vocal advocate of environmental issues ______ its establishment in 1976.
A. for
B. from
C. since
D. as

[单项选择]If you _______ Susan recently, you’d think the photograph on the right was strange.
A. shouldn’t contact
B. hadn’t contact
C. weren’t to contact
D. didn’t contact

[单项选择]饱和指数I_L=pH_o-pH_s＞0，可以判断循环水处于( )状态。
A. 腐蚀
B. 结垢
C. 水质稳定
D. 不能判断

[简答题]Painters lacking originality often__________(把生命耗费在对大师的模仿上)．

[单项选择]______ is a system of arbitrary vocal symbols used for human communication.


A. Linguistics
B. Syntax
C. Morphology
D. language