资格英语-雅思阅读分类模拟题练习十.doc

文档介绍：雅思阅读分类模拟题练****十Readingpassage1Youshouldspendabout20minutesonQuestions1-?In2007theIntergovernmentalPanelonClimateChange(.concludedwithnveryhighconfidence"thathumansareinfactcontributingtoglobalwarming,mainlythroughanincreaseingreenhouse-,,*shistoryisriddledwithclimate-,around14,700yearsago,shotup18becauseofnaturalclimate-,NorthAmerica'smega-mammalsagroupthatincludedmammoths,camels,mastodonsandgroundsloths—-offofthesecreatures;othersmaintainthathumansoverhuntedanddisplacedthemega-,56millionyearsago—tensofmillionsofyearsbeforehumansexisted—manylargevertebrates,particularlymammals,disappearedastheworldfsaveragetemperaturerosebyabout13,,,,cold-climatespeciestendtomo