【2015高考复习】阅读理解Wisdomteetharenormallythelastteethtoappear.Thisusuallyhappenswhenpeopleareintheirlateteenyearsorearlytwenties，inotherwords，whentheyareolderandwiser.Wisdomteethcangrowintoplacenormallyandnevercauseaproblem.Butoftenthereisnotenoughroomfortheminthemouth；theymightcrowdotherteeth.Sometimestheyevenpushsidewaysthroughthegums(齿龈)．Animpactedwisdomtoothisonethatfailstocompletelyrisethroughthegums.Wisdomteeththatonlypartlybreakthroughcanleavespaceforbacteriatoenteraroundtheteeth.Infection(感染)isariskinthesecases.Wisdomteeththatarenotwelllinedandbecomeimpactedareoftenremoved.TheAmericanDentalAssociationsaysremovalisgenerallyadvisedwhenwisdomteethonlypartlybreakthroughthegums.Removalisalsoadvisedifthereisachancethatwisdomteethatepoorlylined.Thebesttimetoremoveisbeforetheteethcauseanyproblemsorpain.Youngadultsarethebestcandidatesforwisdomteethremoval.Butwhydowehavewisdomteethifweoftenneedtogetthemremoved？Onetheoryhastodowithourdiets.Scientistssaythedietofancienthumansprobablyrequiredmorechewingteeth.Lifewasprobablyalittlerougherontheteethbackthen，too.Soitwasgoodtohaveextras.【语篇解读】本文是一篇说明文。文章介绍了智慧之牙——智齿。5．Accordingtothepassage，whichofthefollowingstatementsisNOTtrue?A．Justolderandwiserpeoplecanhavewisdomteeth.B．Wisdomteethcancauseproblemsifnotintheirrightplace.C．Impactedwisdomteethcan’tgrowoutofthegumfully.D．Wisdomteeththatonlypartlybreakcangetbacterialinfections.解析细节理解题。根据文章第一段可知，所谓的智齿是指在青少年晚期或二十岁出头长出的牙齿，而不是只有老人或智者才有的牙齿。答案A6．Wisdomteethshouldberemoved________.A．whentheybreakthroughthegumsB．whentheyarebelowthegumsC．iftheyarenotwelllinedorgetimpactedD．iftheytakeupenoughroominthemouth解析细节理解题。根据文章第四段第一句“Wisdomteeththatarenotwelllinedandbecomeimpactedareoftenremoved.”可知，C项正确。答案C7．Wecanlearnfromthepassagethat________.A．impactedwisdomteethhavetheriskofgettinginfectedB．ancienthumansneedchewingteethbecauseoftheirhappylifeC．olderadultsarethebestcandidatesforwisdomteethremovalD．morechewingteethareneededforthedietofmodernhumans解析推理判断题。根据文章第三段可知，阻生智齿(即im