【单选题】The author provides information that answers which of the following questions
Ⅰ. How does the small area’s increasing density affect its gravitational field
Ⅱ. What causes the disturbance that changes the cloud from its original static state
Ⅲ. What is the end result of the gradually increas-ing concentration of the small area of gas
A、Ⅰ only
B、Ⅱ only
C、Ⅰ and Ⅱ only
D、Ⅰ and Ⅲ only
E、Ⅰ, Ⅱ and Ⅲ
Ⅰ. How does the small area’s increasing density affect its gravitational field
Ⅱ. What causes the disturbance that changes the cloud from its original static state
Ⅲ. What is the end result of the gradually increas-ing concentration of the small area of gas
A、Ⅰ only
B、Ⅱ only
C、Ⅰ and Ⅱ only
D、Ⅰ and Ⅲ only
E、Ⅰ, Ⅱ and Ⅲ
【单选题】Analogies
EPHEMERAL: PERMANENCE、:A.erratic: predictability
B.immaculate: cleanliness
C.commendable: reputation
D.spurious: emulation
E、mandatory: obedience
EPHEMERAL: PERMANENCE、:A.erratic: predictability
B.immaculate: cleanliness
C.commendable: reputation
D.spurious: emulation
E、mandatory: obedience
【单选题】plumB:
(A) inspECt Cursorily
(B) rEsponD prECisEly
(C) ApprovE
(D) DECEivE
(E) rEFrAin
(A) inspECt Cursorily
(B) rEsponD prECisEly
(C) ApprovE
(D) DECEivE
(E) rEFrAin
【单选题】summAry:
(A) ExtEnDED
(B) mitigAting
(C) ostEnsiBlE
(D) unsuBstAntiAtED
(E) minimAl
(A) ExtEnDED
(B) mitigAting
(C) ostEnsiBlE
(D) unsuBstAntiAtED
(E) minimAl
【单选题】All mammals require sleep; it is an essential part of life. For giraffes, two hours a
Line day is enough. For bats, that number is closer to twenty. The average adult human
needs between seven and nine hours of sleep every day.Despite these differences,
mammals all have one thing in common: If they do not get enough sleep, they can
(5) suffer serious mental and physical consequences.
The most extensive sleep research has been conducted on people. Through
these studies, scientists have identified two broad categories of sleep, which can
be further divided into five stages with distinct physiological functions. Taken
together, they form a complete sleep cycle. The first four stages are marked by a
(30) lack of rapid eye movement (REM). Therefore, they are referred to as non-REM
sleep. While people are engaged in non-REM sleep, several things are occurring.
Researchers have discovered that during this early sleep, the human body
releases a series of hormones responsible for the proper functioning of certain
body systems.Disrupted sleep can cause these hormones to fall out of balance.
(15) The results can contribute to disorders such as diabetes, depression, infertility,
or even cancer. Lack of sleep, especially in stages 3 and 4, can literally stunt the
growth of children and may increase rates of obesity in adults.
Stage 5 sleep is defined by the occurrence of rapid eye movement, otherwise
known as dreaming. Note that, while REM sleep is the final stage in a sleep cycle,
(20) a complete cycle generally lasts only about 95 minutes.
A、person will experience
four to six cycles in one sleep session, with REM sleep taking up a larger portion
of the cycle as the night continues. Scientists have advanced several theories
about why humans need REM sleep. One view is that dreaming aids in memory
consolidation. Under this theory, during REM sleep the brain not only strengthens
(25) memory of important actions or events, but it weakens memory of unimportant
things.Another view is that dreaming is necessary for proper central nervous
system development. Yet another theory suggests that REM sleep involves the
repair of monoamine receptors. The theories are not necessarily exclusive; in fact,
they all reach the conclusion that REM sleep deprivation can result in death.
The author implies that disrupted sleep can cause disorders such as diabetes (line 15) because
A、diabetes is linked to obesity
B.sufficient sleep is not crucial to good health
C.diabetes is a serious physical consequence of poor sleep
D.the disorders are probably a result of unbalanced hormone production
E、non-REM sleep is more important than REM sleep
Line day is enough. For bats, that number is closer to twenty. The average adult human
needs between seven and nine hours of sleep every day.Despite these differences,
mammals all have one thing in common: If they do not get enough sleep, they can
(5) suffer serious mental and physical consequences.
The most extensive sleep research has been conducted on people. Through
these studies, scientists have identified two broad categories of sleep, which can
be further divided into five stages with distinct physiological functions. Taken
together, they form a complete sleep cycle. The first four stages are marked by a
(30) lack of rapid eye movement (REM). Therefore, they are referred to as non-REM
sleep. While people are engaged in non-REM sleep, several things are occurring.
Researchers have discovered that during this early sleep, the human body
releases a series of hormones responsible for the proper functioning of certain
body systems.Disrupted sleep can cause these hormones to fall out of balance.
(15) The results can contribute to disorders such as diabetes, depression, infertility,
or even cancer. Lack of sleep, especially in stages 3 and 4, can literally stunt the
growth of children and may increase rates of obesity in adults.
Stage 5 sleep is defined by the occurrence of rapid eye movement, otherwise
known as dreaming. Note that, while REM sleep is the final stage in a sleep cycle,
(20) a complete cycle generally lasts only about 95 minutes.
A、person will experience
four to six cycles in one sleep session, with REM sleep taking up a larger portion
of the cycle as the night continues. Scientists have advanced several theories
about why humans need REM sleep. One view is that dreaming aids in memory
consolidation. Under this theory, during REM sleep the brain not only strengthens
(25) memory of important actions or events, but it weakens memory of unimportant
things.Another view is that dreaming is necessary for proper central nervous
system development. Yet another theory suggests that REM sleep involves the
repair of monoamine receptors. The theories are not necessarily exclusive; in fact,
they all reach the conclusion that REM sleep deprivation can result in death.
The author implies that disrupted sleep can cause disorders such as diabetes (line 15) because
A、diabetes is linked to obesity
B.sufficient sleep is not crucial to good health
C.diabetes is a serious physical consequence of poor sleep
D.the disorders are probably a result of unbalanced hormone production
E、non-REM sleep is more important than REM sleep
【单选题】postsCript : lEttEr ::
(A) insCription: souvEnir
(B) AppEnDix : tExtBook
(C) FounDAtion : Column
(D) signAturE : EpistolAry
(E) DiAloguE : opErA
(A) insCription: souvEnir
(B) AppEnDix : tExtBook
(C) FounDAtion : Column
(D) signAturE : EpistolAry
(E) DiAloguE : opErA
【单选题】Information in the passage provides support for which of the following assertions concerning human cloning
Ⅰ.A、better understanding of the genetic reprogramming process would not likely allow us to clone higher mammals.
Ⅱ. The threat to public health that cloning presents should concern us more than that its threat to individual health.
Ⅲ. The lack of interest in cloning owes less to a lack of technology than a skepticism toward its possible benefits.
A、Ⅰ only
B、Ⅱ only
C、Ⅲ only
D、Ⅰ and Ⅲ only
E、Ⅰ,Ⅱ, and Ⅲ
Ⅰ.A、better understanding of the genetic reprogramming process would not likely allow us to clone higher mammals.
Ⅱ. The threat to public health that cloning presents should concern us more than that its threat to individual health.
Ⅲ. The lack of interest in cloning owes less to a lack of technology than a skepticism toward its possible benefits.
A、Ⅰ only
B、Ⅱ only
C、Ⅲ only
D、Ⅰ and Ⅲ only
E、Ⅰ,Ⅱ, and Ⅲ
【单选题】DissEntEr : DogmA::
A.proFligAtE : DoCtrinE
B.pAtriot : ConviCtion
C.nonConFormist: norm
D.optimist : guiDE
E.(E) BArristEr : rEAson
A.proFligAtE : DoCtrinE
B.pAtriot : ConviCtion
C.nonConFormist: norm
D.optimist : guiDE
E.(E) BArristEr : rEAson
【单选题】DwEll : DEnizEn ::
(A) shun : outCAst
(B) inhErit : hEir
(C) squAnDEr : misEr
(D) oBEy : AutoCrAt
(E) pAtronizE : protégé
(A) shun : outCAst
(B) inhErit : hEir
(C) squAnDEr : misEr
(D) oBEy : AutoCrAt
(E) pAtronizE : protégé
【单选题】ruBBEr : ElAstiC ::
(A) pApEr : BrittlE
(B) DiAmonD : hArD
(C) sAtin : shEEr
(D) mEtAl : hEAvy
(E) Dust : AllErgiC
(A) pApEr : BrittlE
(B) DiAmonD : hArD
(C) sAtin : shEEr
(D) mEtAl : hEAvy
(E) Dust : AllErgiC
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