Unit 20 New Frontiers一、课前基础自查 (一)分类记单词——省时高效Ⅰ.阅读单词(知其意)1.algebra n. 代数2.geometry n. 几何3.bacteria n. 细菌4.radiation n. 辐射;放射5.radioactive adj. 放射性的6.recreation n. 娱乐;消遣7.futurologist n. 未来学家8.seminar n. 研讨会;研讨班9.enterprise n. 事业;企业10.stainless adj. 无污迹的 11.stain n. 污点,污迹12.discrimination n. 歧视;识别力13.database n. 数据库;资料库14.digital adj. 数字式的15.category n. 类别;类型16.autonomous adj. 自治的;自主的17.programmer n. 电脑程序编制员18.disconnect v. 使不连接;切断19.operational adj. 工作着的,即可使用的20.premier adj. 最重要的21.patent n. 专利22.ancestor n. 祖先 ; 祖宗 23.primitive adj. 原始的Ⅱ.重点单词(写其形)1.emotional adj. 情感(上)的2.journal n. 杂志3.latter n. 后者4.handy adj. 方便使用的5.shortly adv. 不久;很快6.conflict n. 争执;冲突7.rescue vt. 拯救,救援8.original adj. 起初的;最早的9.correspond vi. 通信;符合10.meanwhile adv. 同时11.outspoken adj. 直言的,坦率的12.outcome n. 后果,结果13.cure vt. 治愈14.phenomenon n. (pl.phenomena) 现象15.procedure n. 程序;步骤16.source n. 来源;出处 Ⅲ.拓展单词(通其变)1 . technical adj. 技 术 上 的 → technique n.技术→technology n.工艺,技术2.starvation n.饥饿→starve v.挨饿3.equality n.平等→equal adj.平等的v.等于→equally adv.平等地4 . assess vt. 评 价 ; 评 估 → assessment n.评价;评估5.donate vt.捐赠;赠送→donation n.捐赠;赠送→donor n.捐赠者6 . electronic adj. 电 子 的 → electric adj. 电 的 ; 电 动 的 → electrical adj. 电[语境活用]1 . She declared that she would rather change her mind and many citizens were strongly against her declaration.(declare)2.All men are born equal,_so everyone hopes to be treated equally because equality is the basic demand.(equal)3.We are trying to assess how well the...