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1、ThreatenedPolarBearsOnThinIceTheArcticterritorywherepolarbearsroamisliterallymeltingoutfromunderthem.By FelicityBarringerandAndrewC.RevkinTheInteriorDepartmentproposedtodesignatepolarbearsasathreatenedspecies,sayingthattheacceleratinglossoftheArcticicethatisth
2、ebears’huntingplatformhasledbiologiststobelievethatbearpopulationswilldecline,perhapssharply,inthecomingdecades.TheInteriorDepartment:内政部Propose:vproposetosomeone向某人求婚proposeatoast敬酒；举杯proposetodo建议做...proposaln.提议，建议；求婚TheInteriorDepartmentproposedtodesignate
3、polarbearsasathreatenedspecies,sayingthattheacceleratinglossoftheArcticicethatisthebears’huntingplatformhasledbiologiststobelievethatbearpopulationswilldecline,perhapssharply,inthecomingdecades.designate:vt.指定；指派；标出；把…定名为adj.指定的；选定的designateAasB:指定A为Baccelerat
4、e:vt加速accelerateeconomic/economicalspeedArctic：北极圈;北极的Antarcticsharply：急剧地TheInteriorDepartmentproposedtodesignatepolarbearsasathreatenedspecies,sayingthattheacceleratinglossoftheArcticicethatisthebears’huntingplatformhasledbiologiststobelievethatbearpopulatio
5、nswilldecline,perhapssharply,inthecomingdecades.非谓语Thestudentswentoutofthehall,smilingandspeaking.TheInteriorDepartmentproposedtodesignatepolarbearsasathreatenedspecies,sayingthattheacceleratinglossoftheArcticicethatisthebears’huntingplatformhasledbiologiststo
6、believethatbearpopulationswilldecline,perhapssharply,inthecomingdecades.TheInteriorDepartmentproposedtodesignatepolarbearsasathreatenedspecies--主句Saying：非谓语SayingthattheacceleratinglossoftheArcticicethatisthebears’huntingplatformhasledbiologiststobelievethatbe
7、arpopulationswilldecline,perhapssharply,inthecomingdecades.(that引导宾语从句，作say的宾语)theacceleratinglossoftheArcticicethatisthebears’huntingplatform（that引导定语从句修饰theacceleratinglossoftheArcticice）theacceleratinglossoftheArcticice(thatisthebears’huntingplatform)hasled
8、biologiststobelievethatbearpopulationswilldecline,perhapssharply,inthecomingdecades.(that引导宾语从句，作believe的宾语)ManyexpertsontheArcticsaythatglobalwarmingiscausingtheicetomeltandthatth
