.Unit 1characteristic n. 特征；特性radium n. 镭painter n. 画家；油漆匠*put forward 提出scientific adj. 科学的*conclude v.结束conclusion n.结论*draw a conclusion得出结论analyse v.分析&infect v.传染&infections v.传染的&cholera adj.霍乱*defeat v. 打败expert adj.熟练的*attend v.照顾physician n.医生*exposev.暴露*expose.to使显露deadly adj.致命的*cure n.治愈outbreak n.爆发*challage n.挑战victim n.受害者absorb v.吸收*suspect v.怀疑enquiry n.询问neighbourhood n.附近severe adj.严重的&clue n.线索pump n.泵&Cambridg
