Unit 5 WordsandExpressions ppt课件-（2019）新人教版高中英语必修第一册.pptx

1、UNIT 5 UNIT 5 WORDS AND EXPRESSIONSWORDS AND EXPRESSIONS1.hybrid hybrid riceThe music was a hybrid of western pop and traditional folk song. 2.devote-devoted adj.-devotion n.1. _(devote) herself to _(discover) the new treatment to malaria, Tu Youyou and her team examined over 2000 old medical texts.

2、2. _(devoted) to developing the hybrid rice that can be used for farming, Dr. Yuan has overcome enomous technical difficulties. Considering his extrordinary accomplishments, he is viewed as a _(devote) and committed scientist.3. Her son, _ whom she was so devoted, went abroad ten years ago.DevotingD

3、evoteddevotedtodiscovering3. shortage C/U n. 不足; 缺少; 短缺-short adj. there is a shortage of adj. 不足,短缺 He is not short of excuses when things go wrong. Basic foodstuffs were in short supply. In short, I will do my best to make the sports meet a success. (翻译)岛上缺少淡水。There is a shortage of fresh water on

4、 the island.5. boost: vt. 使增长; 使兴旺 n.增长; 提高; 激励 Researches have shown that smiling can lower blood pressure, reduce stress and boosts confidence.The turtle uses a rocket to boost his speed.The government has taken action to boost the economy. 4. tackle/cope with/deal with/attend to/take care of6. co

5、nvince: vt. 使相信; 使确信; 说服I soon convinced him of my innocence.我很快便让他相信了我是清白的。We will try to convince her to stay.我们要尽力说服她留下来。convince sb of/that 使sb相信convince sb to do sth 说服说服sb做做sthYour argument is too weak to convince me.I tried to convince myself that the trouble was easy to tackle.The doctor _ t

6、he benefits of a healthy lifestyle.Sam nodded but he didnt look _._ evidence.convinced adj. 确信的,深信的 be convinced of/that相信convincing adj.令人信服的 is convinced of convincedconvincing7. attain vt. (通常经过努力)获得;得到 attainment n. 达到，获得达到，获得;成就成就,造诣造诣 attainable adj.可达到的，可实现的可达到的，可实现的 These trains are capable

7、of attaining very high speed.The attainment of his ambitions was still a dream.attainable goal/aim/objectives/targets8. assumption n. 假定; 设定; (责任的)承担; 获得 on the assumption that假设,假定He prepared a big meal on the assumption that everyone invited will turn up. The boy cheated in the exam on the assumpt

8、ion that he wouldnt be caught. His actions were based on a false assumption. The assumption of too many new debts does harm to our companys resources. 他假定每个人都会应邀出席并准备了一顿大餐。他在考试中作弊并假设他不会被抓住。assume vt. assume office/responsibility/duty it is generally assumed that pressure is caused by too much work.

9、Assuming (that) you are chosen to be the leader, what will you do? assuming conj.“假设假设为真，假如为真，假如”，引导从句，和引导从句，和supposing, providing, given that用法相同。用法相同。Assuming (that) hes still alive, how old would he be now? 9. intense adj. 热切的; 十分强烈的; 激烈的 intensity n. intense heat/interest/desire/competition eg.

10、Hes very intense about volunteer work. be intense about 对对热心热心 10. expand: v. 扩大; 增加; 扩展; 发展(业务)In ten years, his small business has expanded into a great trade empire. expand students knowledge of classical clothing.All the details are in the book,so I need not expand on it.The rapid expansion of c

11、ities can cause social and economic problems. 11. output n. 产量; 输出; 输出量 vt. 输出input n. 输入; 投入 v. 输入12. estimate: vt./n. 估计; 估价; 估算 It is estimated that 280000 plants has been evaluated for their medical properties in the experiment.13. consumption n. 消耗; 消耗量; 消费 consume vt.消费,消耗;吃,喝 They drew up a p

12、lan to reduce fuel consumption.Looking after children, cooking and cleaning are time-consuming. 14. be comprised of 包括,包含,由组成 be made up of be composed of consist of（无进行,无被动） The United Kingdom_ England, Wales, Scotland, and Northern Ireland. 15. generate vt. 产生; 引起 (to produce or creat sth.) genera

13、te electricity/profits/interest generator n.发电机16. vision n. 想象; 视力; 视野; 影像 Yuan Longpings latest vision for “seawater rice” has become a reality. A man of great vision. envision vt. 展望,想象 They envision an equal society, free of poverty and disease.17. extension n. 扩建部分;扩大;电话分机 extend vt.使伸长;扩大，扩展 现

14、已有扩大无烟区的计划。现已有扩大无烟区的计划。 There are plans to extend the no-smoking area.18. chemical adj. a chemical paper -adv. chemically -n. chemistry/chemist19. in turn: 相应地; 转而; 依次; 轮流 People try to avoid public transportation delays by using their own car, _.(反之这造成了更多的问题) I wish I could do something _ the kindn

15、ess I had received from you.which in turn creates more problemsin return for20. digest vt./vi. 消化; 领会; 领悟 n. 摘要; 文摘He has to avoid fat because his body cant digest it.I need some time to digest information.No liquids are served with meals because they interfere with digestion.21. essential adj. 完全必要的; 极其重要的我们很有必要处理这个问题。It is essential that we (should) deal with the problem.有必要知道问题在哪里。It is essential to know where the problem lies.22.alternative n.可供选择的事物adj.可供替代的;非传统的除了做某事外别无选择；只好做某事_have no alternative/choice/option but to do sth