文档介绍：(从句中用的是行为动词的过去时 ,so that引导的是结果状语从句 )
16. invent v. 发明 invention n. 发明物 inventor n. 发明家
Can you tell me who invented the telephone?
He wants to be an inventor when he grows up.
What do you think is the most important inventions?
at that time 那时候，在那时
on one ’ s own = by oneself = alone独自；单独
The girl can finish the work on her own/ by herself.
19. It ’ s useful for sb. to It ’ s useful for you to know the rules.
be useful to This book is useful to young people.
be useful for (doing) / 某物有用 Dictionaries are useful for learning English.
20. without doing sth. 没有做某事（做伴随状语） without sth. 没有某物
He went to school without eating breakfast.
We went out without any money.
21. manage to do He managed to avoid an accident. 避免
22. operate v. 做手术 n. operation 手术
operate on +sb/. 某部位 The doctor is operating on a boy/ his leg.
do an operation on The doctor is doing an operation on a girl.
23. continue doing continue to do
He continued reading Lesson Ten. They continued talking after the meal.
After reading Lesson Nine, he continued to read Lesson Ten.
24. in the end = at last = finally 最后；终于 In the end he finished the work on time.
25. die of 因⋯⋯而死（内因）后跟 hunger, cold, illness, a fever等名词。
The man died of his illness.
die from 由于⋯而死（外因）后跟 wound, accident, over work, carelessness等名词。
The soldier died from his wound.
make +宾语 +宾语补足语（名词 / 形容词）
We made him our monitor. 我们选他当我们的班长。
The presents made us excited.
take off (飞机等 )起飞；脱下（衣服等）
The plane took off at nine. He took off his wet 。
around the world = all over the world 世界各地，全世界
in need of需要 need n. The doctor told me I was in need of a good doctor.
be proud of 为⋯⋯感到自豪 They are proud of their brave soldiers.
set off/ out =start off/ out 出发；动身
set off for⋯动身 / 出发去⋯ They set off for home then.
get away 离开，逃离 I hope to get away early i