severalgroupnumber,thenwithb±a,=c,cisismethylbtwoverticalboxbetweenofaccuratesize.Per-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,thentheverticalinstallationaccurate.Forexamplea,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,specificmethodisfrombaselinetomethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured

severalgroupnumber,thenwithb±a,=c,cisismethylbtwoverticalboxbetweenofaccuratesize.Per-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,thentheverticalinstallationaccurate.Forexamplea,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,specificmethodisfrombaselinetomethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured

severalgroupnumber,thenwithb±a,=c,cisismethylbtwoverticalboxbetweenofaccuratesize.Per-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,thentheverticalinstallationaccurate.Forexamplea,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,specificmethodisfrombaselinetomethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured

Unit5

PartB

Text1

Ashley

AshleywasreadingamagazinewhenshecameacrossanarticleaboutantibioticsandotherdrugsdiscoveredinEuropeanriversandtapwater.Ifsuchdrugswerepresentthere,shereasoned,theymightalsobefoundnearherhomeinWestVirginia.

Ashleyfearedthatantibioticsinthewaterscouldleadtoresistantbacteria,orsupergerms,whichcankilluntoldnumbersofpeople.

Thegirl,then16,begantestingherarea'sriver--theOhio.Withasimpledevicesheherselfhaddesigned,shecollected350watersamplesfromtheOhioanditstributariesovertenweeks.Readingscientificjournals,shetaughtherselftoanalyzethesamples.Itwasthemostscientificallysoundprojectforsomeoneherage.

Herexperiment,oneofthefirstofitskindintheUnitedStates,showedthatlowlevelsofthreeantibioticsareindeedpresentinlocalwaters.Ashley'sstudywontheInternationalStockholmJuniorWaterPrize,avirtualNobelPrizeforteenagers.Shereceiveda$5,000scholarshipandanaudiencewithSweden'sCrownPrincessVictoria.

Herinterestinsciencewassparkedbywalksinthewoodswithhermother.Butitwastheday-to-daystuff--howwatercomestothetap,howrainstickstoglass,thatmostfascinatedher."Scienceisnotadeadthing,"shesays."It'shappeningallaroundus."

Bythesixthgrade,shewaswinningatsciencefairs.Shehaswon$70,000inprizemoney,whichshehasputasideforcollege.SheplanstoattendHarvardUniversity."Iwanttomakemyowndiscoveries,andnotjustreadaboutwhatothershavedone,"shesaid.HerteacherspredictthatshewillonedaywinaNobelPrize.

Statements:

1.AshleylivesinthestateofVirginia.

2.Antibioticsinstreamsandriverscanleadtotheemergenceofsupergerms.

3.BacteriafoundinEuropeanlocalwatersandtapwaterhavekilledcountlesspeople.

4.Usingsimpleequipmentdesignedbyherself,Ashleycollected350watersamplesintenweeks.

5.Ashley'sexperimentprovedthatantibioticsdidexistintheOhioRiver.

6.Ashleydevelopedastronginterestinsciencewhenshewasinhersixthgrade.

7.Ashleywantstomakediscoveriesbyherselfandknowshowtomakeuseofwhatshehasread.

8.TheInternationalStockholmJuniorWaterPrizeisaNobelPrizeforteenagers.

9.Ashleygota$5,000scholarshipfromHarvardUniversity.

10.Ashleycanberegardedasarolemodelforyoungpeople.

Text2

YoungPeopleSayNotoSmoking

OnFebruary16,2001,theteensfromayouthgroupcalledREBELlaunchedtheiradvertisingcampaignattheLibertyScienceCenterinNewJersey.Bynowjustabouteverybodyhasheardthe"NotforSale"commercialontelevisionandtheradioagainsttobaccocompanies.Whatmanypeopledon'tknowisthatteenagersfromWestNewYorkandacrossNewJerseyworkedonvariousaspectsofthecampaign,andevenappearedinsomeoftheadvertisements.ThecampaignorganizerthoughtitwouldbebetterthanusingactorsifactualREBELmemberswereinthecommercials.

REBEL,whichstandsforReachingEverybodybyExposingLies,isastatewideyouthinitiativeagainsttobaccocompanies.Themovement,whichbeganinNovemberlastyear,carriesthemessagethatteensnolongerwanttobetargetedbytobaccocompaniesintheiradvertisements.Knowingthatpeerpressureonteenstosmokeordodrugsisoneofthebiggestproblemsthatteensface,thegroupisworkinghardtoensurethattheirmessagereachesallteenagersatNewJerseyschools.

Whenthegroupwasfirstformed,therewereonlyfivemembers,alleighthgradestudents.Butbythissummerthegrouphadgrowntocloseto90members.Atarecentrecruitingparty,apizzaandpoolparty,attheWestNewYorkswimmingpool,morethan50newmemberswereattractedtothegroup.

"Wedon'tthinkthattoomanypeoplewouldbeinterested,"saidJackie,oneofitsfoundingmembers."Buteveryoneknowsourmessage.Theyknowwhowearenow."

Questions:

1.WhendidREBELlaunchtheiradvertisingcampaign?

2.HowmanymembersdidREBELhavebythesummerof2001?

3.WhoarethemembersofREBEL?

4.WhatdidREBELdofortheircampaignagainsttobaccocompanies?

5.WhatdidREBELdorecently?

PartC

Skatescooters

InHongKongthesedays,youwilloftenseepeopleridingskatescootersinthestreets.Dependingonwhichwayyoulookatthem,theycanbegr