时间:2018-12-11 作者:英语课 分类:托福听力短文


英语课
(MB) You'll recall that in last week's class I talked about how the sound made by most animals, though sometimes complex, are different from human language. Only in humans do these sounds represent objects and events. Keep in mind that most animals can only repeat their limited utterances 1 over and over again, while humans can say things that have never been said before. Today I want to focus on human language and how it developed.

I doubt you'll be surprised when I say that the evolution of language was slow and laborious 2. There's some reliable evidence that language began with early humans a million and a half years ago. Through the study of the size and shape of brain fossils, scientists have determined 3 that early human brains, like modern brains, had a left hemisphere slightly larger than the right hemisphere. We know that in modern humans, the left hemisphere's the seat of language. We also know that early human brains had a well-developed frontal section, known as Broca's area, which coordinates 4 the muscles of the mouth and throat.

It's clear, then, that early humans had a speech apparatus 5. They could produce any sound that we can. What we don't know is whether early humans used what they had. Since scholars know virtually nothing about prehistoric 6 speech patterns, all they can do is speculate about how language actually originated. Let me give you a brief summary of some of these theories.


1 utterances
n.发声( utterance的名词复数 );说话方式;语调;言论
  • John Maynard Keynes used somewhat gnomic utterances in his General Theory. 约翰·梅纳德·凯恩斯在其《通论》中用了许多精辟言辞。 来自辞典例句
  • Elsewhere, particularly in his more public utterances, Hawthorne speaks very differently. 在别的地方,特别是在比较公开的谈话里,霍桑讲的话则完全不同。 来自辞典例句
2 laborious
adj.吃力的,努力的,不流畅
  • They had the laborious task of cutting down the huge tree.他们接受了伐大树的艰苦工作。
  • Ants and bees are laborious insects.蚂蚁与蜜蜂是勤劳的昆虫。
3 determined
adj.坚定的;有决心的
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
4 coordinates
n.相配之衣物;坐标( coordinate的名词复数 );(颜色协调的)配套服装;[复数]女套服;同等重要的人(或物)v.使协调,使调和( coordinate的第三人称单数 );协调;协同;成为同等
  • The town coordinates on this map are 695037. 该镇在这幅地图上的坐标是695037。 来自《简明英汉词典》
  • The UN Office for the Coordination of Humanitarian Affairs, headed by the Emergency Relief Coordinator, coordinates all UN emergency relief. 联合国人道主义事务协调厅在紧急救济协调员领导下,负责协调联合国的所有紧急救济工作。 来自《简明英汉词典》
5 apparatus
n.装置,器械;器具,设备
  • The school's audio apparatus includes films and records.学校的视听设备包括放映机和录音机。
  • They had a very refined apparatus.他们有一套非常精良的设备。
6 prehistoric
adj.(有记载的)历史以前的,史前的,古老的
  • They have found prehistoric remains.他们发现了史前遗迹。
  • It was rather like an exhibition of prehistoric electronic equipment.这儿倒像是在展览古老的电子设备。
学英语单词
accuracy requirement
aestus volaticus
aiya
amifampridine
anthracene nucleus
aroom
athermaney
audit recorder function
autistic
automatic continuous blowdown
Baer'slaw
bichloride
bionic man
boat sling
boiler flexibility
broker participant
burning rubber
byte-addressable computer
car kilometers
carriage saddle
checked and adjusted capacity
chimney deposit
Clanis bilineata
consolidated quick shearing resistance
cooperation mode
Daoura, Oued
data bank/base
dense core
dissociating
early-october
error of method
erythematopultaceous
excellent time
fixed frequency filter
fulfilments
gamete (sperm/ovum)
geothelphusa olea
glamazons
global value
graphic interpolation
hand sketch
heart-shaped thimble
high performance data space
high-temperature test for core
hydraulic pipe line dredge
id command
incriminatingly
inefficaciously
infra-trochlea nerve
intensated
interface reaction constant
job system
kilroots
Lyphozyme
mother naked
near midair collision
nonvegetated
nux vomica tincture
oculogravic(optogravic)illusion
One Fathom Bank
operate time of protection
ottoman-era
oxygen vapor pressure thermometer
parazona
peripheral-face milling
photogenesis
plastic shading
polymethyldithiocyanatoarsine
polyubiquitinates
pricing anomaly
pump redundancy
purification index
reboiler
Rio Grande do Sul, Estado do
roller conveyer table
rosenquist
rosier
secondary iris cell
Sibelius Seamount
sleep-phase
slihgt shower of rain
smooth winterberry holly
snorkel
splicing complex
statement of expenses
stauros
thread error
three-in-one brake valve
toastcrumbs
trachelology
trench mouth
true airspeed calculator
vacuumimpregnation
Vu Quang
waggonful
wave rider
why-it
wind driven electricity generator
woodvale
yearly average outage hours
yeere
Zener-diode