第8课 布朗斯特和路易斯酸碱概念

第8课布朗斯特和路易斯酸碱概念教学目的与要求：

了解并掌握本课中的专业词汇、构词法、句子成分以及长句的翻译法本章的教学重点与难点：

重点：专业词汇、长句的翻译法

难点：长句的翻译法。

教学时数：1学时

主要内容：

1.单词和词组

Words and Phrase：

acceptor接受体

amphoteric adj. 两性的(酸与碱)

by virtue of由于

clarify vt. 澄清，阐明，使... 明晰

coordinate covalent bond配位共价键

donor 给予（体）

electron-dot formula点电子式

electrophilic adj. 亲电子的(吸电子的)

neutralization n. 中立化，中立状态，中和

competition for为... 而竞争，... 比赛

conjugate v. 结合，配合，（动词）词形变化

adj. 成对的，[数]共轭的，[语]同词根的

n. [数]共轭值，[语]同根词

conjugate pair共轭对, 耦合对

conjugate acid共轭酸

conjugate base共轭碱

generality n. 一般性，概论，大部分

in contrast to(with) 和... 对比，与... 相反

illustrate vt. 举例说明，作图解；vi. 举例

nucleophilic adj. [化]亲核的，亲质子的

preclude vt. 预防，排除

subscript n. 下标; adj. 写在下方的

act as担任，充当

be derived from来自；起源于，由... 而来

define as界定，定义为

depend upon(on) 依赖，取决于，随... 而定

function as v. 起... 的作用

in similar fashion同样

in the presence of 在……存在下，在……参加下

it is evident that…… adv. 显然(很明显)

loses out输掉，失败，被压倒，被取代

2. Prefix and suffix

dis- 否定，相反，分开，离去

displace, disappear, discharge, discolor

-phile 名词词尾，表示“亲、爱好、嗜”

nucleophile, dienophile

-philic 形容词词尾，表示“亲、嗜”

electrophilic, hydrophilic

-ize 动词词尾，表示“使。。。。。。化”

neutralize, ionize, crystallize

3.句型\翻译

The first equation is a neutralization reaction according to the Arrhenius concept as well as Bronsted —Lowry but, since Arrhenius recognized only the base OH-, the other reactions are excluded according to his concept

按阿仑尼乌斯和布朗斯特概念，第一个方程是中和反应。但是由于阿仑尼乌斯认为碱只是OH-，所以按他的概念，其它反应都被排斥在中和反应之外。

Relative acid strength of proton donors is measured by the extent to which reactions with a common base proceed at equilibrium

质子给体的相对酸强度是依靠它与同一碱反应进行到平衡的程度来度量

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§ Lesson 8 The best and the worst 最好的和最差的 【New words and expressions】生词和短语 ★competition n. 比赛, 竞赛 race : car race match : football match contest : baby contest 更广泛 beauty contest 选美 暗地里的竞争－competition game : 游戏, 运动 ★neat adj. 整齐的, 整洁的 neat=tidy adj / v tidy (up) the room 整理房间 ★path n. 小路, 小径亦作pathway ★wooden adj. 木头的 ★pool n. 水池(人工的) swimming pool 游泳池 pond 天然的《golden pond》—金色池塘 good bad 比较级－than 最高级－of all He is the tallest of all. He is the tallest in the room. the+ -est more interesting the most interesting 1、三个或者是三个音节以上——多音节 比较级的构成 : more+原级最高级的构成 : the most+原级 2、单音节的词用er 3、双音节以y结尾的双音节词去y后+ier(大多数情况) clever cleverer more clever slowly more slowly often more often fun:快乐more fun 美国人用 无规律 : good well(better best) bad badly(worse worst) many much(more most) little(less least) far (farther further , farthest furthest) old(older elder,oldest eldest) farther:距离上的远和更远further:程度further more(更有甚者) older:比...大elder : 做定语修饰其他名词elder sister (年长的)姐姐 She is older than somebody 【Text】 Lesson 8 The best and the worst 最好的和最差的 First listen and then answer the question.听录音, 然后回答以下问题. Why is Joe's garden the most beautiful one in the town?

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