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(共16张PPT)
Word power
Unit 3 To be a good learner
We can add -er, -or and -ist to some words to form nouns for people.
Verb/Noun +Suffix →Noun
print + er →printer
invent + or →inventor
tour + ist →tourist
TIP
Sometimes we need to change the ending of the verb/noun when we add the suffix:
dance → dancer win → winner
piano → pianist science → scientist
Benjamin Franklin was good in many areas. As a young man, he worked as a printer /'pr nt (r)/and kept developing his skills as a writer. He was also an inventor and made many useful things for daily life. Moreover, Franklin was a scientist, and many of his findings played an important role in the history of science.
A Change the following words into nouns for people by adding the correct suffixes. You may use a dictionary to help you.
1 plan _____________
2 own _____________
3 art _____________
4 win _____________
5 write _____________
planner
owner
artist
winner
writer
6 piano _____________
7 biology _____________
8 visit _____________
9 publish _____________
10 manage _____________
pianist
biologist
visitor
publisher
manager
思考：Do you know other words using the suffixes -er, -or and -ist
work—worker; teach—teacher;
act—actor; novel—novelist
（答案不唯一）
B Amy is asking Mr Wu about the meaning of “slashie /'sl i/” . Complete what Mr Wu says with the correct forms of the words in brackets.
A slashie is someone good at many different jobs. For example, Xiao Yi is a great (1) _________ (design). He’s also a (2) _________ (sing) and (3) _________ (dance). Liang Xu is a (4) _________ (biology).
designer
singer
dancer
biologist
She’s also an amazing (5) ____________ (photograph) and (6) _________ (write). Today, there are more and more chances for people to develop their interests in different areas. So we’ll see even more slashies in the future.
photographer
writer
C Write about great learners you know, using the suffixes -er, -or and -ist.
略
1 -er 后缀
(1) 职业或行为者
用在动词或名词后，表示从事某类职业或执行特定动作的人。 teacher（教师，源自 teach）； driver（司机，源自 drive）； farmer（农民，源自 farm）。
探究 构词法
后缀-er ， -or 和-ist
(2) 比较级
用于形容词或副词，表示程度或速度的增强。taller（更高的，源自 tall）； faster（更快的，源自 fast）。
2 -or 后缀
(1) 职业或行为执行者
多源自拉丁语动词词根，强调专业性身份或主动执行动作的主体。actor（演员，源自 act）；inventor（发明家，指主动创造发明的人，源自invent）。
(2) 工具或抽象功能
部分词汇既可指人，也可指工具或抽象功能。conductor（导体/ 指挥，源自conduct）；detector（探测器/ 检测人员，源自detect）。
3 -ist 后缀
(1) 职业或专业身份
表示从事特定职业或具备专业技能的人，强调专业性或系统性知识背景。scientist（科学家，源自science）；violinist（小提琴家，强调乐器演奏的专业性，源自violin）。
(2) 理念或信仰
表达对某种思想或主义的支持，常见于政治、哲学语境。socialist（社会主义者，源自social）；nationalist（民族主义者，源自national）。
学会运用1: My sister is a ___________ (paint). She paints beautiful pictures.
学会运用2: The _________ (direct) of the play is my teacher. She helps us act well.
学会表达3: 我表姐是一名钢琴家。她钢琴弹得很好。
My cousin is a ________. She plays the _________ well.
painter
director
pianist piano

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