专四专八考试

【单选题】
单项选择

【单选题】
A．At A timE
B．somEtimE
C．somEtimE
D．somEtimEs

【单选题】
The man is selling his science book, Today’s World for
A、$30.
B、$60.
C、$14.
D、$23.

【单选题】whiCh oF thE Following is not truE
A．john hArolD DrAkE CritiCizE proBlEm ChilDrEn in his Book.
B．two 10-yEAr-olD Boys ArE his CEntrAl ChArACtErs in his Book.
C．thE mEssAgE ConvEyED By thE ChArACtErizAtion is importAnt.
D．thE Author oF thE tExt prEFErs to rEgArD thE Book As A DrAmA thAn novEl.

【单选题】Counting is DiFFErEnt From numBEr sEnsE in thAt Counting is__________.
A．DEpEnDEnt on simplEr mEntAl ACtivity
B．FounD in AnimAls As wEll As mAn
C．FArthEr up thE EvolutionAry sCAlE
D．prEsEnt in AnimAls on thE BAsis oF muCh EviDEnCE

【单选题】
whAt will hAppEn to thE jEt sAlEs in 2008
A、thE sAlEs ArE ExpECtED to slow ForAirBus AnDBoEing.
B、thE sAlEs ArE ExpECtED to inCrEAsE only ForBoEing.
C、thE sAlEs ArE ExpECtED to slow only ForAirBus.
D、thE sAlEs ArE ExpECtED to slow For nEithErAirBus norBoEing.

【单选题】People born in autumn live longer than those born in spring and are (31) likely .to fall chronically iii when they are older, according to anAustrian scientist. Using (32) data for more than one million people inAustria,Denmark andAustralia, scientists at the Max Planck Institute (33) Demographic Research in the northern German town of Restock found the month of birth was (34) life expectancy over the age of 50. (35) differences differences in what mothers ate during (36) ,and infections (37) at different times of the year could both have an impact on the (38) of a newborn baby and could (39) its life expectancy in older age. "A、mother giving birth in spring spends the last (40) of her pregnancy in (41) , (42) she will eat less vitamins than in summer," said GabrieleDoblhammer, one of a team of scientists who (43) the research. "When she stops (44) and starts giving her baby normal food, it’s in the hot weeks of summer when babies are (45) to infections of the digestive (46) ." InAustria, adults born in autumn (October-December) lived about seven months longer than those born in springApril-June), and inDenmark adults with birthdays in autumn (47) those born in spring about four months. In the southern hemisphere, the picture was similar.Adults born in theAustralian autumn—theEuropean spring-lived about four months longer than those born in theAustralian spring. The study focused on people born at the be- ginning of the 20th century, using (48) certificates and census datA、Although (49) at all times of the year has improved since then, the seasonal pattern (50) ,Dobl-hammer saiD、
A、drivingB、death
C、graduateD、birth

【单选题】thE plACE DiD not AppEAr to BE populAr, For it wAs ComplEtEly DEsErtED, AnD in Any CAsE to trAFFiC.
A．inADEquAtE
B．inACCEssiBlE
C．inCompAtiBlE
D．insigniFiCAnt

【单选题】oF thE thousAnDs oF known volCAnoEs in thE worlD, thE ______ mAjority ArE inACtivE.
A．trEmEnDous
B．DEmAnDing
C．intEnsivE
D．ovErwhElming

【单选题】The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, (31) this is largely because, (32) animals, we stand upright. This means that our noses are (33) to perceiving those smells which float through the air, (34) the majority of smells which stick to surfaces. In fact, (35) , we are extremely sensitive to smells, (36) we do not generally realize it. Our noses are capable of (37) human smells even when these are (38) to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, (39) others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate (40) smell receptors in the nose. These receptors are the cells which sense smells and send (41) to the brain. However, it has been found that even people insensitive to a certain smell (42) can suddenly become sensitive to it when (43) to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it (44) to keep all smell receptors working all the time but can (45) new receptors if necessary. This may (46) explain why we are not usually sensitive to our own smells—we simply do not need to be. We are not (47) of the usual smell of our own house, but we (48) new smells when we visit someone else’s. The brain finds it best to keep smell receptors (49) for unfamiliar and emergency signals (50) the smell of smoke, which might indicate the danger of fire.
A．similar to
B．such as
C．along with
D．aside from