英语选修8 unit5 重点单词

1、Unit51. identify vt. sb. /sth. as sb./ sth.确认，证明某人/某物系某人/某物她认出那个男子就是袭击她的人。The police are trying to identify the dead body.Scientists have identified the gene that causes abnormal growth.identification n. 鉴别；身份证明 identification card 身份证identity n. 身份；特征 identical adj. 完全相同的，一样的2. alternative adj. (作定

2、语) 供选择的，可代替的We recommend using alternative sources of fuel such as charcoal(木炭).As there is less and less coal and oil, scientists are exploring new ways of making use of alternative energy, such as sunlight, wind and water for power and fuel.n. 可能的选择；替代物Minibuses with seats for 12 passengers offer

3、an alternative to expensive taxis and crowded public transport.Im sorry, theres no alternative but to sell the car.别无选择只好做 have no alternative but to do = have no choice but to do = have nothing to do but do除了放弃那个计划，我别无选择I have no alternative but to give up the plan.= I have no choice but to give up

4、 the plan.= I have nothing to do but give up the plan.3. Review the words: starve; accurate1)They got lost in the desert and _(starve) to death.2) She is starving _ trying to lose weight.3) By the year 2025, no one will die of _(starve) because there will be food for everyone.4) He is getting back t

5、his afternoon, to be _(accurate), at four oclock.5) Its impossible to predict the weather _(accurate).6) _(accurate) is most important in translation.4. Interrupt vt. vi.打断(讲话或讲话人),打扰I wish you wouldnt interrupt me all the time.Sorry to interrupt you, but I have something urgent to tell you.vt. 使暂时停

6、止；中断The war interrupted the trade between the two countries.My studies were interrupted by the Cultural Revolution.Will you stop _(interrupt) me when Im talking?He burst into the room, _ my teaching.5. acute adj. 敏锐的;聪明的，机敏的 Dogs have an acute sense of smell.His hearing is so _ that he can even hear

7、 a pin drop.剧烈的； 强烈的acute pain acute embarrassmentThere is an acute shortage of water and food.急性的 SARS stands for severe acute respiratory syndrome. acute pneumonia 急性肺炎6. assume vt. 假定; (想当然地)认为I didnt see your car, so I assumed youd gone out.I assumed she was American but she was actually Canadia

8、n.Lets just assume the statement to be true.Its generally assumed that stress is caused by too much work.assuming分词可以充当连词使用=supposing 或 suppose 意为 “假如；假设”Assuming it rains tomorrow, what shall we do?Assuming we have won a lottery, how shall we use the money?We reserved a big table on the assumption

9、that fifteen people would come.We cant just make an assumption but must get the accurate evidence.The assumed enemy sometimes will disturb your life.7. regardless of不管；不顾We strongly advocate equal treatment for all, regardless of race, religion, or sex. All our proposals were rejected regardless of

10、their merits.This special school accepts all disabled students, _ educational level and background. A. according to B. regardless of C. in addition D.in terms ofJoe is a good basketball player _ being short and fat._ ups and downs, she never takes her fate lying down.8. Review “at (the) most; at lea

11、st”You could buy a good washing machine for about $350, $400 _(至多)._(最高) the temperature in summer goes up to about 38.It will take you _ (至少) 20 minutes to get there.He had been dead for _(至少) a fortnight.It would cost $1 million _ (最起码).9. 用合适的副词或介词填空：1) The gas has been cut _ due to the quake.2)

12、You have to cut _ on the time surfing the internet.3) Davis cut _ to ask if anyone would like a drink.4) You can cut _ the last sentence of the paragraph.5) I feel very cut _ if I didnt know what was happening in the world.6) Cut _ the meat and carrots and then mix them.10.用括号内单词的适当形式补充句子。I felt a _

13、(sharp) pain in my back.Prices have risen _(sharp) over the last few months._(sharp) all your pencils before the test.Time is _(ripe) for a reform.The tomatoes quickly _(ripe) in the hot weather.They are trying to _(wide) the discussion to include environmental issues.11. mess n 杂乱；混乱； vt. 弄脏；弄乱 mes

14、sy adj. 凌乱的；脏的The room was _because the thief turned it upside down.I feel Ive made _ of things.It took me ages to get this right I dont want anyone to mess it _again.It doesnt matter if you mess it _, you can always try again.Sorry the place is so _, I havent had time to clear up.12. analyse/analyz

15、e vt. 分析 analysisplur. analyses n. 分析analytical adj. 分析的；用分析方法的 analyze1)People do not _ every problem they meet.2)The experts are doing _ of the samples.3) Would you make/carry out/conduct _of the current situations in our country? 4) The earliest computer was called an _ machine.13. significance n

16、. 意义；意思；重要性 significant adj. 重要的；相当数量的 For a very long time, people always have been trying to find out the significance of life.The speaker gave us a talk of great _.In a sense, they are spending a _ amount of time in fruitless efforts as they do many things at the same time.Health problems can be

17、_ reduced by careful diet.14. somehow 以方式；不知怎么 莫名其妙地anyhow=anyway 无论如何；不管怎样 somewhat 有点儿；有几分；稍微 Somehow the right chance never seemed to present itself. I didnt mean to cheat, but it was still cheating anyhow.Anyway(总之), doing what you love is wonderful.Everything seemed to be all right, yet he felt

18、 strange and somewhat uneasy.15. be fed up with 厌倦的,厌烦的I am really fed up with the bad weather.I got fed up with my job listening to the customers complaints. You look fed up whats the matter?He was tired _ the urban life and hoped to move to the country, expecting a change in his current life style

19、.He tired the audience _ his long speeches.Andy was bored _ listening to the same words every day.16. applaud vt. 向.鼓掌;向.喝彩The audience applauded the singer for three minutes. All people present applauded her success.称赞;赞赏 We applauded him for his courage. I applaud your decision.vi. 鼓掌欢迎;喝彩 Everyon

20、e applauded when the play ended. As I left the stage, there was only some quiet applause(u掌声).17. look ahead 向前看,考虑到将来We must look ahead before we make a decision. You can expect to find a multi-storey building on this site. Of course, Im looking ahead five years when I tell you this.Everyone should

21、 look ahead and save a little money each year for when he retires.Look _, and youll have a brighter future. Ive looked _ all my papers but I still cant find the article.I like to look _ my high-school days.We should not look down _ disabled people.The students all look up _ the old teacher.Look _! Theres a car coming.The police are looking _ the records of all those involved in the crime.18. accelerate vt.& vi.使增速, 加快The driver stepped on the gas and accelerated t