Many animals have an excellent sense of smell - 副本

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1、Manyanimalshaveanexcellentsenseofsmell,whichtheyuseinhunting.Ontheotherhand,theireyesightmaybepoor.Dogs,forexample,havepooreyesightandnocolorvision.Theyseeonlyshadesofgray.Butadog’ssenseofsmellisextraordinary.ThekindofdogknownasAlastianhas220millionolfactoryce

2、lls.Manhasfivemillion.ScientistsbelievethattheAlastianisonemilliontimesbetterthanmaninfindingoutodors.Thehumansenseofsmell,however,isreallyquitegood.Theaveragehumanbeingcandistinguishmorethan10000differentodors.31.Accordingtothepassage,whichofthefollowingfacts

3、istrue？____A.Manyanimalshavegoodeyesightandsenseofsmell.B.Dogsarecolorblind.C.Thehumansenseofsmellisnotgood.D.Adog’ssenseofsmellispoor.32.TheAlastian’solfactorycellsare____timesasmanyasman’s.A.24B.44C.220millionD.5million33.Theunderlinedwordodormeans____.A.颜色B

4、.食物C.心情D.气味35.Thebesttitleofthepassageis“____”.A.TheHumanSenseofSmellB.DogsHavePoorEyesightC.SenseofSmellD.DogsHaveExcellentSenseofSmell B细节判断题。从Dogs,forexample,havepooreyesightandnocolorvision.得出B。B判断推理题。从Alastianhas220millionolfactorycells.Manhasfivemillion.

5、得知是44倍。D词意猜测题。文中提到adog’ssenseofsmellisextraordinary.得知odor和smell是同义词，可得出D为正确答案。C主旨大意题。最佳标题是通篇谈论的SenseofSmell即嗅觉。Passage2AccordingtotheAmericanAutomobileAssociation,since1964allcarssoldintheUnitedStateshavebeenequippedwithseatbelts.（Thesearealsocalledsafetybelt

6、s.）Manystudiesofautomobileaccidentshaveshownthatsafetybeltscansavelives.Onestudyshowedthatfortypercentofthosekilledinautoaccidentscouldhavebeensavediftheyhadbeenwearingseatbelts.Unfortunatelybeltsarewornonlybyasmallpercentageofdriversandpassengers--aboutfiftee

7、npercentincities,andonlyninepercentinsmalltowns.Andsafetybeltscannotprotectpeoplewhodonotwearthem.Inordertofindoutwhatkindsofpeopledowearseatbelts,astudywasmadeinseveralcitiesoftheUnitedStates.Thefollowingfactswerelearnedaboutthosewhousetheirsafetybelts:1.They

8、donotsmokewhiledriving.2.Theyhavehadmoreeducationthannon-users.3.Theyknowsomeonewhowasinjured(butnotkilled)inanautomobileaccident.Advertisementsbasedonthesefactshavebeenprintedinne