Unit 2 Cloning Section Ⅱ Warming Up &;Reading-Language Points一、这样记单词记得准·写得对记得快·记得多Ⅰ.基础词汇 1.commercialadj. 商业的;贸易的2.straightforwardadj. 简单的;直接的;坦率的3.breakthroughn. 突破4.proceduren. 程序;步骤;手续5.castvt. 扔;投;掷6.altogetheradv. 总共;完全地7.obtainvt. 获得;赢得8.attainvt.获得;到达(水平、年龄、状况等)Ⅱ.拓展词汇1.differvi.不同;相异→different adj.不同的;与众不同的→ difference n.差异;区别→differently adv.不同地2.undertakevt.着手;从事;承担→ undertook (过去式)→undertaken (过去分词)3.correctionn . 改 正 ; 修 正 ; 纠 正 → correct vt.改正;纠正4.objectvi.不赞成;反对→objection n.不赞成;反对;异议5.mediumn.媒介;手段;工具→media (复数)6.forbidvt. 禁 止 ; 不 准 ; 阻 止 ; 妨 碍→forbade/forbad(过去式)→forbidden(过去分词)7.accumulatevt. &vi.积累;聚积→accumulation n.积累1.“承担”种种①undertake duty 承担义务②undertake job 承担工作③undertake mission 承担使命④undertake task 承担任务⑤undertake a post 担任职务2.巧记合成名词①break through→breakthrough n. 突破②break out→outbreak n. 爆发③break down→breakdown n. 故障;(关系)破裂④fall down→downfall n. 垮台⑤put out→output n. 产量;输出⑥get together→gettogether n. 聚会3.altogether adv.总共;完全地[同义] entirely, wholly, totally, completely, thoroughly, all[反义] partially, partly4.表示“量”的增减的相关动词小结①accumulate vt. &vi. 积累;聚积②increase vt. &vi. 增长;增加;提高③enlarge vt. &vi. 扩大;放大④expand vt. &vi. 扩大;膨胀⑤shrink vt. &vi. 收缩;缩小⑥reduce vt. &vi. 减少二、这样记短语记牢固定短语多积常用词块1.to_be_exact 确切地说1.growing plants 生长着的植2.pay_off 得到好结果;取得成功;偿清3.cast_down 使沮丧;使失望4.be_appropriate_to_sth. 适合于……的5.on_the_other_hand 另一方面6.object_to 反对;不赞成7.have_a_great_impact_on 对……有重大影响8.in_favour_of 赞成;支持物2.natural clones 自然克隆3.new plant ...