Warming up、Pre-reading、Reading、Comprehending评课稿

阅读理解技巧之猜测词意Ways to Guess the Words Teaching aims: 1.

Master the ways to guess new words and expressions.

2.

Improve the students’ reading comprehension skills. 3.

Arouse the students’ interest in effective ways of learning .

Teaching important and difficult points: 1.

Arouse the students’ interest in effective ways of learning English. 2.

Improve the students’ reading comprehension skills.

Teaching aids: A multimedia computer, a blackboard, handouts.

Teaching procedures: StepⅠ.

Leading in Play the song “Try everything” to the students,and ask them to sing along with it. I messed up tonight

I lost another fight

I still mess up

but I'll just start again Ask: The phrase” messed up “is a new one,what’s the meaning?can you guess? Then tell them today we’ll learn some ways to guess new words and expressions.

Step Ⅱ Ways to guess the new words and expressions. 1.

Explanation（解释）

Explain: 利用文章中用不同的话对同一概念的解释，猜测词义。信号词有：be, be called, means, be defined as ，that is(to say), in other words, namely, or 等或者利用同位语、定语从句等及标点符号

：或

—

等。

Show the example on the screen,and ask the students to read the sentence carefully,and find out the sign word. eg：

It will be very hard but also very

brittle --- that is, it will break easily.

（易碎的，脆弱的）

Show the sentence on the screen,and ask the students to read it carefully,and find out the sign word.Then guess the underlined word. Then check the word “stethoscope”. Ex. 1 stethoscope eg：

Modern medicine began with the stethoscope,

a medical tool used for listening to

the movements of a person’s lung and his heart beats.

（听诊器）

2. Context（上下文）

Explain: 上下文主要有对比(反义)关系

(Antonym) 、同类(近义)关系

(Synonym) 、因果关系

(Causality) .

Explain:1).对比(反义)关系

能体现对比(反义)关系的信号词：but, yet,

however, while, unlike, instead, on the contrary, not, in contrast with, 等。标点符号“;”有时也可表示对比。

e.g.

Though Tom’s face has been washed quite

clean, his neck still remains grubby.

（污秽的, 邋遢的）

Show the sentence on the screen,and ask the students to read it carefully,and find out the sign word.Then guess the underlined word. Then check the word “punctual”. Ex. 2 punctual

American businessmen expect the worker to be punctual. They do not expect that they will come late.

（文中be punctual的意思，可理解为“not come late”，即“准时，不迟到”

）

Explain:2).同类(近义)关系

近义词替换的表达方法可以为我们推测词义提供明显的语境线索。信号词有or, like, similar，and, similarly, also,again 等。

e.g.

Mr Smith loves to talk, and his wife is similarly loquacious. （显然，similarly 是个语境线索，它暗示loquacious意为love to talk。）

Show the sentence on the screen,and ask the students to read it carefully,and find out the sign word.Then guess the underlined word. Then check the word “detrimental”. Ex. 3 detrimental

eg：

Doctors believe that smoking cigarettes is detrimental to your

health．They also regard drinking as harmful．

detrimental means _________________.（有害的，不利的）

Explain:3). 因果关系:

信号词：because，as，since，for，so，thus，as a result, so … that, such … that，therefore

等表示前因后果.

e.g. The river is so turbid that it is impossible to see the bottom even when it is shallow(浅的).

（混浊的）

Show the sentence on the screen,and ask the students to read it carefully,and find out the sign word.Then guess the underlined word. Then check the word “ replica”. Ex. 4

replica Since I could not afford to buy the real painting, I bought a replica. An inexperienced eye could not tell the difference.

（仿制品）

3. Word-formation (构词法)

Explain:Word-formation (构词法)主要有派生法(前缀、后缀)Derivation、

、合成法

Compound、转化法

Conversion。

Explain:1)派生词

常用前缀

prefix

anti ---反

co---共同

dis / im / in / il / ir

–不

multi ---许多

post ---之后

pre/fore ---预先

re ---重复

over—过度的

antiwar

coauthor

impossible

multiculture

postwar

prepay

retell

overcareful 常用后缀

suffix -ion/-tion /-ation

-ness/-ment

-ism

-able/-ible/-ble

-ous/-ious

-less

correction

selflessness

socialism

changeable

mountainous

homeless Explain:2)合成词：compound 合成词也称复合词，由两个或两个以上的词合在一起构成,分别用做形容词或名词.

earthshaking

changes =changes which shake the earth

(翻天覆地的变化)

Explain:3)转化：conversion 转化法即名词转化为动词、动词转化为名词、形容词转化为动词等。

e.g. Today it’s his turn to empty the rubbish.

empty means________

（倒空）

4. Examples（举例）

Explain:常有信号词: for example, for instance, such as, like等词语来提示。

e.g. On the farm they mainly raise poultry, such as chickens, ducks and geese, for their eggs and meat.

（家禽）

5. Common sense（常识）

Explain:一般能够根据自己的生活经验及生活常识来判断词义。

e.g.Most of the roses are beginning to wither because of the cold. （枯萎）

Ex. 5

anaesthetic When a doctor performs an operation on

a patient, he usually gives an anaesthetic to make him unconscious（无意识的）, because he does not want his patient to feel pain or to know what is happening to him. （麻药）

StepⅢ.Consolidation Exercises Ask the students to do the exercises:Guess the meanings of the underlined word.

1). All his attempts to unlock the door was futile, because he was using the wrong key.

A. 成功的

B. 徒劳的

C.有效的

D. 匆促的

2). Though Mr. Smith has been manager for just 3 months, he has already made much greater achievements than his predecessors.

A. 上级

B.同事

C. 前任

D. 下级

3). When he reached the place with his army, he found an impassable river in front of him.

impassable means______________. 4). Like people in any country, Americans enjoy following the lives of celebrities: movie stars, sports heroes, famous artists, politicians, and so on.

The word “celebrities” means_____

5).You can take any of the periodicals: The World of English, Foreign Language Teaching in Schools, or English Learning.

Periodicals means____________.

6).Some human actions are learned, but quite a few other actions are innate.

innate

means____________.

StepⅣ

Consolidation Go back to the song “Try everything”. Play the song “Try everything” again. I messed up tonight

I lost another fight

I still mess up

but I'll just start again

Ask:Today we have learned some ways to guess new words and expressions,By means of them, can you guess what the meaning of ” messed up “ is? How?

StepⅤ

Summary 1、Summarize the ways to guess the new words and expressions. 2、Emphasize the importance of leaning methods.

StepⅤ

Homework: Practice makes perfect(熟能生巧) Do more exercises on your paper. 7). Here is an example from the test paper of the 2016 final exams.

A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. Instead, it may be that biologically these sleepyhead students aren’t used to the early hour.

The underlined phrase “nod off” most probably means “ _______”.

A.turn around

B. agree with others

C. fall asleep

D. refuse to work

8).Here is another example from the test paper. A heart-warming story tells of a woman who finally decided to ask her boss for a raise in salary. All day she felt nervous and appre-hensive. Late in the afternoon she summoned the courage to approach her employer. To her delight, the boss agreed to a raise.

The underlined word in the second paragraph most probably means______ A. worried B. eager

C. certain

D. afraid