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九年级英语第九单元知识点
九年级英语第九单元知识点
一、重要词汇
1.invent 动词,(1) 发明,创造
Who invented the TV set ?
The telephone was invented in 1876.
(2) 虚构,杜撰
I invented a story .
The whole story was invented .
inventor 名词,指人,“ 发明家,创造者”
I want to be a famous inventor when I grow up .
invention 名词,指物,“发明,创造”
I think the computer is the most useful invention .
Thomas Edison was a great American inventor . He invented more
than 1000 inventions during his life .
2.operate 动词 (1)操作,作业,;实施手术;
operate on sb. 给某人做手术
The workers are operating in deep water .
The doctor is operating on the eyes of the patient .
(2)操作,开动(机器等);经营,管理
His brother operates the machine .
The man operates a factory .
3. It is better to do sth .最好做某事
It is cold outside . It is better for you to wear warm clothes .
== It is cold outside . It is better that you should wear warm clothes .
4. used to be 过去怎么样,表示一种状态
He used to be very thin and short .
be used to do 过去常常做某事
They used to swim in the river .
be used to sth 习惯于某物
He is used to the weather here .
be used to doing sth 习惯于做某事
He is used to getting up early .
be used for doing sth===be used to do sth 被用于做某事
This knife is used for cutting things . == This knife is used to cut things.
be used as 被当作、、、、、、使用
This box is used as a table
5. mistake 名词,“错误,误会”;
make a mistake , make some mistakes 犯错误
I made some mistakes in my English exam .
Don’t make such a foolish mistake again .
by mistake 误拿,误做,误用
Jim ate his sister’s cake by mistak
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