Unit 7 When Disasters Strike Grammar-word building课件(共10张PPT)-2024-2025学年中职英语外研版(2021)基础模块1

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Unit 7 When Disasters Strike Grammar-word building课件(共10张PPT)-2024-2025学年中职英语外研版(2021)基础模块1

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(共10张PPT)
Unit7 When Disaster Strikes
Word Building
Unit7 Word Building
构词法:
英语单词的构成有一定的规律,常见的构词法有三类:
派生、合成、转化
Unit7 Word Building
派生:
由某一个词根加上某前缀或后缀构成的,叫做派生词。
eg.
replant
uproot
preparation
powerless
natural
Unit7 Word Building
前缀:
增加前缀,通常可以改变词义,不变词性。
eg.
前缀 含义 例词
un- 不,非 unable无能的,unfair不公平的
im- impossible不可能的,impolite不礼貌的
anti- 反对,反抗 antibody抗体,antibiotic抗生素
pre- 在前,提前 preview预习,predict预言
Unit7 Word Building
后缀:
增加后缀,通常可以改变词性,不变词义。
eg.
前缀 含义 构成词性 例词
-tion 性质、状态、行为 名词 information信息,invention发明
-er 人 leader领导,stranger陌生人
-al 有......性质 形容词 personal个人的,cultural文化的
-ful 充满......的 beautiful漂亮的,grateful感激的
-less 无,不 careless粗心的,helpless无助的
Unit7 Word Building
合成:
由两个或更多单词组成的,叫做合成词。
eg.
flowerpot
earthquake
workshop
passerby
Unit7 Word Building
转化:
由一个词类,变成另一个词类的词,叫做转化词。
eg.
face
v. 面向,面对
n.脸,面孔
Unit7 Word Building
转化:
由一个词类,变成另一个词类的词,叫做转化词。
eg.
hurt
v. 疼痛,受伤
n. 心灵创伤,委屈
Unit7 Word Building
You should know yourself well, including your strengths and _____________ (weak).
Ms Liu ___________ (water) the flowers every day.
After __________ (graduate), Li Hui works as an engineer in a factory.
Lily was so _________ (care) that she left her wallet in the dining hall.
A _________ (nation) park will be built in my hometown this year.
Complete the sentences with the proper form of the words in brackets.
weaknesses
graduation
careless
national
waters
Thank you !
中职英语基础模块1

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