Step I Greeting

Step II Grammar

Word formation構詞法

按照語(yǔ)言一定的規律創(chuàng )造新詞的方法，叫構詞法

International = inter + national

Telephone = tele- + phone

Mankind = man + kind

Broadband = broad + band

Extremely = extreme + -ly

Manned = man + -ed

Hi-tech = high + technology

e-school = electronic + school

IT = information technology

CSA = Chinese Space Agency

Study the ways of forming a word and explain their differences

Step III 構詞法的分類(lèi)

1、 合成法

把兩個(gè)或兩個(gè)以上獨立的詞合成一個(gè)新詞的方法叫做合成法，也叫合詞法

(1)合成名詞

Spaceship highway afternoon

(2) 合成形容詞

Cold-blooded hand-made hard-working

(3)合成動(dòng)詞

Safe-guard ill-treat

(4)合成副詞

However anywhere anyway

(5)合成代詞

Some, any, no可以和 -thing, -one, -body合成代詞

2、 轉換法

轉換是指由一種詞類(lèi)轉化為另一種詞類(lèi)。

(1)動(dòng)詞轉化為名詞

He visited the Summer Palace yesterday. 動(dòng)詞

He paid a visit to the scientist last week. 名詞

英語(yǔ)中常用give, take, have, make 等動(dòng)詞構成這一累詞組，表示一個(gè)動(dòng)作。

give a a shout take a seat have a swim make a decision

(2)名詞轉化為動(dòng)詞

They have booked their plane tickets.

(3)形容詞轉化為動(dòng)詞

The room gradually quieted down.

(4)形容詞轉化為副詞

How long is the line? 形容詞

How long have you lived there? 副詞

(5)形容詞轉化為名詞

Something has gone wrong with the machine.

形容詞

He didn’t know the difference between right and wrong. 名詞

3、 派生法

派生法是由詞根加詞后綴構成新詞。構成的新詞稱(chēng)為派生詞。詞綴分為前綴和后綴。除少數前綴外，前綴一般只改變詞的意義，不改變詞性；后綴一般只改變詞性，不引起詞義變化。

前綴

a- （形容詞、副詞） asleep

dis- （否定） discourage

in-i-im-ir- （不、非） impossible

en- (使可能) enable

mis- (誤) mistake

re- ( 重復、再) return

tele- （遠程） telephone

un-on- (不、非) unfair

后綴

名詞

-er -ese -ian -ist -ment -ness -or -tion

形容詞

-al -an -ern -ful -ble -ish -ive -y -less

動(dòng)詞

-ly -iza

副詞

-ly -ward(s)

形容詞

-teen -ty -th

4、 縮略法

縮略法就是將原詞縮短，在讀音和寫(xiě)法上成為新的形式。

Bicycle ------- cycle

Examination-------- exam

Refrigeration-------- fridge

U.N------- the United Nations

USA------ the United States of America

Step Ⅳ Finish the exercises in the book.

Step V: Homework