新概念英语三册课后练习答案lessons-19-21

新概念英语三册课后练习答案 lessons 19~21 Lesson 19 1a 2b 3a 4b 5d 6a 7b 8d 9c 10b 11c 12a 新概念 3 课后习题解析： Multiple choice questions 多项选择 1. A 正确 could and would 同意并有能力 companion n.同伴,共事者 2. B 正确 on what conditions 在什么样的基础之上 reveal vt.展现,显示,揭示,暴露 3. A 正确 greatly adv.很,非常 4. B 正确 for a great many years(用完成时) 5. D 正确 6. A 正确 reaction n.反应,反作用根据语法规则： 主语是 ambition, duty, goal, hope, idea, intention, mistake, plan, policy, purpose, reaction, suggestion 等名词的时,句子的表语必须是 to不定式短语,该不定式短语是说明其内容的。 His purpose in life was to seek truth instead of money. Our plan is to make better use of this material. 7. B 正确 for fear + of/that They are working hard for fear that they should fail. = They are working hard for fear of failure. afraid for 侧重点表示：为...感到担心,害怕失去 The parents are often are afraid for their children.父母常为孩子担心。 He was afraid for his job.他害怕丢工作。 I am not afraid for my head.我不怕掉脑袋。 8. D 正确修饰 money 用 large 9. C 正确 measured adj.慎重的,有节奏的,标准的,整齐的,有规则的 regular adj.强调有规则的 disciplined n.受过训练的,遵守纪律的 10.B 正确 go for a walk = go for a stroll go on/for a trek 进行艰苦的跋涉 trek n.牛拉车旅行,艰苦跋涉 go for a trot 去散步 trot n.小跑,骑马,疾走,忙碌 lane n.(乡间)小路,巷,里弄 I’m going for a trot down the lane.我正沿着巷子小跑。 11.C 正确 sure enough = as (was) expected without a doubt adv.无疑地 as a matter of fact adv.事实上(in fact = actually 实际上,事实上) 12.A 正确 healthy adj.健康的,健壮的 sane(adj.神志清楚的,头脑清楚的)= sensible(明智的,有推断力的) 新概念 3 课后习题答案： Lesson 20 1c 2b 3b 4c 5a 6c 7d 8a 9c 10d 11a 12d 新概念 3 课后习题解析： Multiple ...