同济大学2006年博士研究生入学考试英语试题-1
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mesL .~&ers
,ill put in an
impressive 42 hours
-
B.
reconstruct&
.
In
a world where
. water currents. In
thos&
and in the
amount that'happens to kxist.
e used in the quantities desired.
out 5
000 yea years ago.
Ta
be sure other
The
most compl~,onhu
society and
a comple
nders, but everyone could come up wifb his
own version of aural hell-
5nd a quiet spot to ponder the matter.
iet what technology has done, other technology is now
stanlng ro
uter power, to zap those ear-splilting noises
into silence.
ence-seekers h8d little recourse except to stay inside, close the vvindow
ask the noise but annihilates it electronically.
a
wave on a pond is flattened when it merges with a
trough that is its e
or mirror
image), so can a
sound wave be
=gate4 by meeting its opposit
This general theory of sound cancellation has' been around since the
frequencies and tones,
the inverse sounds exactly like the noise it is mean
26.The: writer holds that .
A. modern techno lo^
has dis
27. According to the
passtsge, an acf
ve rioise-cancellation
s
B. e;limimtes noise rather &m mum
D.
holds noise back rather &an
stin
78. In Paragraph
5 the word " !i~&ss'' me
B.
enthusiasts
flattened by m~eting its exact opposite.
. a
special category of stars,,bown as cepheid
(
variables. A variable star is one whose apparent brightness changes from t
apparent brightness over a
relatively short
period of
time -
Eram
one to
th
3%- month or mare. This variation in
bTighmess could be recorded and precise
back to its brightest agai~orresponded to the intrinsic or absolute brig
star. That is,
tlx greater the star's absolute brightness, the slower
its cycle
'5 gravity and
the outward pressure exerted by
the flow of light
them outward. The result is a pulsating,
inend-out msvement tb
increasing and decreasing brighmess, The stmnger the light pressure,
th
puisation. Therefore, the periodicity of
the cepheid variable is a
good ind
bject, it is possible to use the
inverse square law to determine exactly ho
1 iect will appear
to be.
This !aid the background for Leavia's most
crucial insight. As she ha
e absolute brightness of a cepheid variable could be determined by
eriodicity. And, of course, the apparent brigfitness of the
star when obse
earth could be
determined by simple measurement. Leavitt saw that w
facts and the help of the inverse square law, it would be possible to d
stance from earth ~f any cepheid variable. If we know the absolute bd
ar and
how bright it appears from the earth,
we can tell how far it must
Thus, if a
cepheid variable can be found in
my galaxy, it is possi
bA. depends upon its
measurable distance fiom an
observer on e
3 3 .Which of the
C. The distance
D. Both A
and C.
A. a relatively rapid variation
B.
a correspondingly weak gravitati
outward flow
of light pressure
the
&stances between
permitting employers
to make gradual changes
instead of coping wiQ th
departwe of an
empioyee. Retirement could be radically redefined in
the futu
Earlim criticism of mandatory retirement at a
fixed age led to legal ah
the practice of age discrimination in employment. The
Age Discrim
ipk
can remain in productive jobs
now longer than in the past. I
alysts point
to declining numbers of young people entering the
ticipating a labar shortage latm in fie
1990s. 'That developmen
37.What happened in 1986?
D.
Retired people were no
longer entitled to pensivns
38.Empirimi studies
indicate Wt 014
people
3.
prefer working
to tetiri
A. h~w
to mmgo older workforce
I
. .- -. .
. . -
-.
vlu buliUTe has
cbuQtd mobi hmericms to ass
universal but that the gestures we use are understo
that waving good-bye is
the way to summon a person from
side, or that in Italy and some Latin
American countries, curling
the finger to
is a sign of farewell.
Those private citizem who
~mt p~kagm
TO our troops ocmpying
Germ
World War II
and marked them GIFT
to escape duty payments did n~t bothe
out that "Gift" means poison in German. Moreover, we like to think of ours
friendiy, yet we prefa to be at least 3 feet or an
asmk length away from other
and Middle Easterners lik~
@ wme closer md-tok
which m&is
J~
uncomfortable.
Our
linguistic (%%k@J)
and cultural blinbsg md the casualness wi
WF: take notice of the developed tastes, gstwts, Gustoms and languages
countries, are losing us
friends, business
md rspedt i~
the world.
Even
here ie
the United States, we make few concessio
visitors. There are
no inf~rmation signs in four lmguages an am
pubfit:
monuments;
we do not have ~nultilingml (%%&)
guided tours, Very
menus have translations, and tliultifinguai waiters, bank clerks and
poli
Our transportation systems
have rn-
ki English aaly md
Q~-w$
