1、1Unit 21 Human Biology. 重点词汇1. circulate vi.循环circulation n循环2. digest vt. & vi.消化；理解 n摘要；文摘digestible adj.易消化的digestion n消化3. abuse vt.滥用abuse ones power 滥用职权4. doubtful adj.怀疑的doubt n& vt.怀疑5. oppose vt.反对oppose doing sth. 反对做某事opposed adj.强烈反对的opposite adj. 相反的6. cater vi. 满足需求、迎合cater for 满足需求ca
2、ter to 迎合7. treat v款待；请客；治疗 n款待treat. as. 把当做Its my treat. 我请客。8. postpone vt.推迟，延期postpone sth. to/until 将推迟/延期至postpone doing sth. 推迟做9. prohibit vt.禁止；阻止prohibit sb. from doing sth. 阻止某人做某事prohibition n禁令；禁止10. trial n实验；试用；审讯on trial 在试验中trial and error 反复试验11. faith n信心2have faith in sb. 相信某人12
3、 equip vt. 装备，配备equip. with.用配备；用装备equipment n设备13. fortune n大笔钱财；巨款make a fortune 发财fortunate adj.幸运的fortunately adv.幸运地unfortunate adj.不幸的14. concern n担心；担忧concerned adj.关心的be concerned about 关心；担心15. circumstance n情形；情况under no circumstances 决不in any circumstances 在任何情况下.重点句型1. have sth. done 使某物被2. having killed up to. 为现在分词的完成式在句中作状语，表示动作发生在谓语动词的动作之前。3. “with宾语宾语补足语”结构。4. It is/was. that.强调句型。5. since用作连词，意为：由于，引导原因状语从句。6. It is agreed that.大家普遍认为7. even though 即使，引导让步状语从句。8. if意为“是否” ，引导宾语从句。.单元语法1. 条件状语从句2. 混合虚拟条件句3. 情态动词(1)表示推测(2)表示义务、责任、必要性
