高中英语单词天天记reduce素材.docx

·reduce·v.  [rɪ'djuːs]　( reduces; reduced; reducing )·  ·双解释义·vt. 缩减,减少; 降低   make less in size, amount, price, degree, etc.·vi. 减轻体重,节食   lose weight intentionly; diet·vt. 降职   make sb lower in rank or status; demote sb·vt. 使…陷入某种状态或状况中   bring sb/sth into a specified state or condition·vt. 将…概括或简化   change sth to a more general or basic form·vt. 将…还原   remove oxygen from or add hydrogen or electrons to (a compound)·基本要点  ·1.reduce的基本意思是“减少”,指重量、程度、数目、范围、速度等减少或降低,不仅可以指量的变化,还可以指质的转变引申可作“降职”“使…陷入某种状态或状况中”“将…概括或简化”“将…还原”“征服”“攻陷”等解。

2.reduce可用作及物动词,也可用作不及物动词用作及物动词时接名词或代词作宾语可用于被动结构3.reduce偶尔也可接动词不定式作宾语补足语,意思是“使…不得不…”4.reduce后常接介词by表示“以某幅度减少”或“以…方法减少”; reduce常接介词to表示“减少到…”或“使陷入…状态”5.reduce的过去分词reduced常可用作形容词,在句中作定语··词汇搭配  · ～+名词· reduce a person to reason  使人服理· reduce the city to a shambles  使城市变成瓦砾· reduce the loss of blood to a minimum  把失血减少到最低量· reduce the passage to half the number of words  把这段字数减少到一半· reduce the size  缩小体积· ～+副词· reduce easily  容易征服· reduce gradually  逐步缩小· reduce greatly  大大减少· reduce markedly  明显地减少· reduce materially  大为减少· reduce necessarily  必要地减少· reduce sharply  锐减· ～+介词· reduce sth from...to  把某物从…降至…· reduce in  在…方面减少,在…方面降低· reduce in price  削价· reduce oneself into  陷入· reduce to  使变成…,使陷入· reduce to despair  陷入绝望· reduce to slavery  沦为奴隶·常用短语  ·reduce by(v.+prep.)▲reduce sth by sth/v-ing1.使…以(某幅度)减少 make (sth such as an amour or price) lessShe reduced her weight by five kilograms.她把体重减轻了5公斤。

The new canal will reduce the distance between the two cities by half.新运河将使两个城市间的距离缩短一半They have reduced the price by ten percent.他们已降价10%We are going to reduce the price of these coats by 20 per cent.我们打算把这些上衣减价20%销售◇ 用于be ～ed结构The price was reduced by ten percent.价格降低了10%2.以…方法减少 make (sth such as an amount or price) less by doing sth Reduce the sauce by boiling it for ten minutes.把调味汁煮沸10分钟,使之浓缩变稠Some fat people try to reduce their weight by eating less.有些胖人试图通过少吃减肥3.用…方法还原 remove oxygen from or add hydrogen or electrons to (a compound) with sth The chemist reduced water by electrolysis.化学家用电解法把水还原为氢。

··reduce from(v.+prep.)使…低于 make (sth such as a price) less than (a former level)▲reduce sth from sth I bought this shirt because it was considerably reduced from its original price.我买这件上衣是因为它远远低于它的原价··reduce in(v.+prep.)使…方面降低 bring (sth/sb) down with regard to (a level, price, etc.)▲reduce sb/sth in sth He would not reduce it in price.他不愿降低它的价格They have decided to reduce him in post.他们已经决定降他的职◇ 用于be ～ed结构Most of the daily necessities have been greatly reduced in price.大部分日用品已大降价He was reduced in rank.他被降级了。

··reduce to(v.+prep.)〔说明〕 reduce to通常不用于进行体1.使降低到,遭受 bring sth to a smaller number or amount; change sth to its parts; bring or get to a certain condition, especially humble, unpleasant, or dishonourable▲reduce sb/sth to sth/v-ingThey reduced the expenses to 60 per cent.他们将开支压缩到60%We should reduce the unproductive expenditure to a minimum.我们应该把非生产性开支压缩到最低限度The fighting reduced the city to a shambles.这场战斗使这座城市成了一片废墟A conflagration in 1947 reduced 90 percent of the houses to ashes.1947年的一场大火,使90%的房屋化为灰烬。

Even when we reduce the salt to a fine powder, it still tastes salt.即使把食盐捣成粉末,它还是有咸味的A succession of bad harvest had reduced the small farmer to penury.连续歉收使得这个小农场主陷入了贫困境地Anxiety about the fate of his family reduced him to a nervous wreck.对家人命运的担忧使他精神崩溃◇ 用于be ～ed结构His income has been reduced to half its amount.他的收入减少了一半The operation must be carefully planned so that the loss of blood would be reduced to a minimum.这次手术要周密计划,要把失血降到最低限度Your speed must be reduced to the city speed as soon as you cross the border.你一进市区车速就得减到市区的规定速度。

He is reduced almost to a skeleton.他瘦得几乎变成了一个骨头架子The chalk was reduced to powder.粉笔被磨成粉末The house was reduced to ashes.那房子被烧成了灰烬I bought the coat as it was reduced to only ￡30.我买这件上衣因为它减价到只卖30英镑After the Opium War of 1840,China was gradually reduced to a semicolonial and semifeudal society.1840年鸦片战争后,中国逐渐沦为一个半殖民地半封建的社会Its people were thus reduced to slavery.就这样它的人民都沦为奴隶了In the old society he was finally reduced to begging.在旧社会,他最后被逼得讨饭During the famine, many people were reduced to eating grass and leaves.许多人在饥荒时被迫吃青草啃树叶充饥。

The captain was reduced to the ranks.上尉被降为士兵2.归纳,简化 consider separate things together as a unity; simplify sth made up of many parts as a single thing or idea▲reduce sth/wh-clause to sth I think we can reduce his rather lengthy statement to one or two essential points.我认为可以把他冗长的演说归纳为一两个要点This kind of analysis reduces the problem to its simplest form.这种分析把这个问题概括成最简单的形式We can reduce what he said to three simple facts.我们可以把他讲的内容归纳为三件事◇ 用于be ～ed结构His life's work can be reduced to a search for truth.他的毕生事业可以说就是探求真理。

Boil all the ingredients together till they are reduced to half the quantity.将所有配料放在一起熬,使它们浓缩成一半。