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(完整版)人教版必修三unit2单词讲解

1.diet ①n. 日常饮食健康的饮食a healthy diet 均衡的饮食a balanced diet 正在节食的人不能吃巧克力。

控制饮食,节食be/go on a diet eg. 正在节食的人不能吃巧克力。

People who are on a diet can’t eat chocolate.使某人节食put sb. on a diet eg. 我的医生严格限制我的饮食。

My doctor strictly put me on a diet.②v. 节食,限制(他人或自己的)饮食eg. 她正在节食减肥。

She is dieting to lose weight.我的医生严格限制我的饮食。

My doctor strictly dieted me.diet 可数名词,指的是习惯的日常食物或因病或减肥而规定的食谱。

food一般的词语,凡是能吃喝的东西都可称作food2. protective adj. 给予保护的,保护的protect v. 保护protection n. 保护protector n. 保护者3. balance ①v. 使平衡,权衡eg为了平衡贸易,他们将不得不减少在美国购货。

In order to balance their trade, they wouldhave to buy less goods in the United States.②n. 天平,平衡4. roast adj. 烤制的roast duck /chickenv. 烤,烘烤stir-fry炒; stew炖/焖; boil煮; steam蒸;fry炸/煎5. ought v. aux. 应该ought to①应该,情态动词,只有一种形式,没有人称和数的变化②ought的否定形式由直接加not构成ought not to (oughtn't to ),疑问式将ought提到句首构成。

③反意疑问句里He ought to be here, oughtn't he?④ought to have done本应该做某事(实际没做)ought not to have done本不应该做(实际做了)6. curiosity n. 好奇心,求知欲→curious adj. 好奇的→curiously adv. 好奇地Satisfy one’s curiosity 满足某人的好奇心show one’s curiosity about 对…表现出好奇他的答复丝毫没有满足我的好奇心His reply didn’t satisfy my curiosity at all.be curious about/to do7. get away with 被放过,(做坏事)不被惩罚If students cheat in the exam, they’ll never get away with it.Two clerks robbed the bank and got away with a lot of cash.The driver was lucky to get away with only a fine.[链接] get along/on with 相处,进展get out of 从…中出来; 摆脱get over 克服get down to 开始着手get behind with = fall behind with落后于…get through 完成(任务), (电话)接通8. lie n. 谎言tell a lie/tell lies 说谎lie v. : lie- lied –lied- lying______/ lay- laid- laid- laying_______/ lie- lay- lain- lying_______;The man lying there lied that he had laid the money on the table/He laid the carpet on the floor and then lay on it./ He is lying . The cat is not on the roof. It's lying under the table.9. discount n. 折扣give/make/allow a discount (on)…打折buy/get/sell sth at a discount 以打折价买/卖…如果我买一整箱酒你们能打折吗? Do you give me any discount if I buy a whole box of wine?我以四折的价格买了这条裙子I bought this dress at a discount of 60%.v. 打折; 不理会,不重视(ignore) 对他说的话你不必当真You can discount what he said.10. strength n. 强项;长处;(人的)力气,力量≠weakness n. 弱点Maths is his strength. 数学是他的强项。

We rely on the strength of the people. 我们依靠人民的力量。

strengthen vt.加强11. consult vt. 查阅;请教consult sb. 请教某人; consult sth. 查阅…consult with sb. 和某人商量查字典: consult the dictionary/look up a word in the dictionary/refer to a dictionary consultation n. 商讨,咨询12. digest: bite---chew----swallow---digest----absorb-----pee/fart/poop;Some books are to be tasted, others to be swallowed, and some few to be chewed and digested. digestion n.13. earn one’s living (by doing sth.)= make one’s living (by doing sth.)= do sth for a living 通过…谋生我的一个朋友靠卖保险为生One of my friends earns his living by selling insurance.earn vt. 赚(钱);博得,赢得: 他一年大概能赚10万元He earns about 100,000 yuan a year.His honesty earned the respect of us.[区分]earn 强调工作所得薪金和报酬gain 指凭借相当大的努力获得胜利,名誉,知识,权利和进步等: She gained much experience while working for the newspaper.win 指在竞争,战争,比赛中获胜: Who is going to win the game14. (be) in debt 负债≠out of debt 那位所谓的百万富翁债台高筑The so-called millionaire was deeply in debt.不要再借钱给那个负债的人Don’t lend any money to the man in debt any more.Owe a debt 欠债get/fall/run into debt 负债pay one’s debt 偿还债务pay off one’s debt 还清债务15. glare vi. 怒目而视, 瞪着glare atThey stood face to face, ____________(glare at) each other.[区分]stare at 盯着, 凝视(由于好奇,无礼长时间地看): He stared at the word trying to remember its meaning.Glance at 一瞥, 粗略的看(由于时间紧而匆匆看一眼): He glanced at his watch.Look at 看着(无感情色彩,只表动作)16. spy on/upon 监视有人喜欢窥探别人的隐私Someone likes spying on other’s privacy.Spy (sth) out 找出, 查出(find out)Spy n. 间谍17. limited adj. 受…限制的limited ability 有限的能力My vocabulary is quite limited.18. benefit n. 好处; 利益be of benefit to … = be beneficial to…对…有好处Have/get the benefit of…得益于…我得益于良好的教育I’ve had the benefit of a good education.Vt. 有益于…A benefit(s) B A有益于B B benefit(s) from/by A B从A中获益众所周知, 做眼保健操有益于我们的眼睛, 也就是说, 我们的眼睛有益于做眼保健操It is known to us all that doing eye exercises benefits our eyes, and that is to say, our eyes can benefit from doing eye exercises.19. cut down 削减,删节(reduce, shorten);砍倒(树)运用: 根据汉语意思,完成下列句子。

(1)应在一切方面减少开支。

Expenses ought to ________________ in every way.(2)你的文章大长了,请删减到两百字左右。

Your article is too long; please ________________ to about 200 words.(3)我准备叫人把这棵树砍掉。

I’m going to have the tree ________________.联想:(1)cut up切碎(2)cut off切断;断绝(3)cut __out______切去;省略;停止(做某事)20. before long/long beforeLong before = long ago 很久以前Before long 不就以后; 在…之后不久..人们很快就会知道的People will know before long.他们不久之后就会相互了解It won’t be long before they understand each other.Before long he had to return to the village where he once lived long before.。

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