【阅读理解大家帮忙啊ScientistsintheUnitedStateshavedevelopedamethodthatmayhelptopredict.阅读理解ScientistsintheUnitedStateshavedevelopedamethodthatmayhelptopredictearthquakesearlier.Theysayitcouldgivepeople】

阅读理解大家帮忙啊ScientistsintheUnitedStateshavedevelopedamethodthatmayhelptopredict.

阅读理解

ScientistsintheUnitedStateshavedevelopedamethodthatmayhelptopredictearthquakesearlier.Theysayitcouldgivepeoplewholiveindeadlyearthquakeareasenoughwarningtoleavebeforeanearthquakehits.

Currently,themostmodernsystemsforpredictingearthquakesfindthemonlyashorttimebeforetheevent.Likemoststrongearthquakes,theonethathitsouthwesternChinainMaywasnotidentifiedearlyenoughforpeopletofleethearea.Thatearthquakekilledsixty-ninethousandpeople.

ButscientistswhostudyearthquakesarereportingthatnewtechnologycouldmeasureverysmallchangesintheEarth'ssurface.TheirreportwaspublishedthismonthinNaturemagazine.FenglinNiuisaseismologist（地震学家）withRiceUniversityinHouston,Texas.HeandhisteamperformedexperimentsalongCalifornia'sSanAndreasFault（断层）,anareafamousforitsmanyearthquakes.

Theteamplacedhighlysensitiveelectricaldevicesaboutonekilometerbelowgroundintwodifferentplaces.ThedeviceswereabletomeasureevensmallchangesinairpressureontheEarth'ssurface.Thescientistssaysuchchangesarecausedwhenrockspushtogether,forcingairoutofsmallcracksintherock.Whenthishappens,seismic（地震的）wavestravelfasterthanusualthroughtherock.

ThemethoddevelopedbysomescientistsintheUnitedStatescanbeusedto_______.

Apreventearthquakes

Bwarnpeople

Cpredictanearthquake

Dfightagainstanearthquake

WhydidtheearthquakewhichhitsouthwesternChinainMaycausesomanydeaths?

ATheearthquakewasverystrong.

BTheearthquakewasnotidentifiedearlyenough.

CChinadidnotusetheAmericanmethod.

DBothAandB.

WhatisCalifornia'sSanAndreasFaultfamousfor?

AEarthquakes

BExperimentsperformedhere

CRiceUniversity

DWedon'tknow.

TheNaturemagazineisabout_________?

AscienceBearthquakeCnovelDpeopleWhatisNOTtrueabout

WhatisNOTtrueabouttheexperimentsdonebyFenglinNiuandhisteam?

ASomeele