Unit4重点词和短语1.giveittocharity把它给慈善机构2.medicalresearch医学研究3.watchitgrow看着它上涨增值4.wearashirtandtie穿衬衣打领带5.whatif如果……将会怎么样6.getpimples得了小脓疱7.speakinpublic在公共场合说话8.give/makeaspeech演讲9.infrontof在……前面inthefrontof在……前部10.beinamovie拍电影11.withoutpermission未经允许12.introducesb.tosb.把某人介绍给某人13.pretty/fairlyconfident相当自信14.socialsituations社会情况15.bothersb.打扰某人16.not….intheslightest根本不，一点也不not…atall根本不，一点也不17.annoysb.使某人生气get/beannoyedatsb.对某人生气18.plentyof足够的，很多的19.getalongwith与……相处20.beeasytogetalongwith容易交往/相处21.ratherthan胜于AratherthanBA胜于BwouldratherdoAthandoB宁愿做A也不愿做B22.Englishspeechcontest英语演讲比赛23.representtheclass代表班级24.cometop名列前茅25.letsb.down使某人失望26.comeupwith针对问题提出想法27.therestof剩余的……28.first-aidbook急救书29.havealotofexperiencedoingsth.做某事有很多经验30.dowith=dealwith处理31.comeout出版，发表32.byaccident偶然地；意外地33.coversth.withsth.用某物盖住某物becoveredwithsth.被……覆盖34.presssth.hard用力挤压35.hurrytodosth.快速做某事36.getthemedicalhelp取得医护帮助37.theburnedarea受伤的地方38.(cold)runningwater(冰)自来水39.offersb.sth.提供某人某物40.talktosb.aboutsth.与某人谈论某事41.bedangerousof/doingsth.做某事危险42.internetfriend网友