Unit 3 Inventors and inventions课时作业
Using Language
[课 文 预 读]
Ⅰ.课文理解
1．Alexander Graham Bell invented the microphone because ________.
A．he was interested in the microphone
B．he liked inventing anything he liked
C．he wanted to help deaf people like his mother to communicate with others
D．he had nothing to do but kill the time
2．Which of the following is NOT true?
A．Bell's exploration and dynamic spirit led to his invention of the telephone.
B．Bell invented the first telephone in searching to improve the telegraph.
C．Bell was always aimed at improving the quality of everyone's life.
D．Bell sent his first telephone message before he got his patent.
3．From the whole passage we can see that Alexander Graham Bell was a(n)________person.
A．intelligent B．creative
C．brave D．diligent
4．What do you think is the key to Bell's success as an inventor?
A．Good luck. B．Intelligence.
C．Curiosity. D．Inspiration.
5．Modern bridge designs benefit a lot from ________.
A．triangles B．the tetrahedron shape
C．kites D．flying machines
答案 1.C 2.D 3.B 4.C 5.B
Ⅱ.速读课文，判断正(T)误(F)
1．It was his interest in problems and his hard work that led to his most famous invention.( )
2．During the design of a multiple telegraph，Bell invented the telephone occasionally.( )
3．Bell invented the telephone and the tetrahedron shape，and neither of them is used today.( )
4．Bell's inventions have improved the quality of everybody's life.( )
5．Alexander Graham Bell was not a man to rest and he was an inventor all his life.( )
答案 1.F 2.T 3.F 4.T 5.T
【话题语篇导读】
Do you have imagination？Do you like to solve problems？Can you？If so，you could be the next great inventor.“But I'm just a kid，”you might say！Don't worry about a little thing like age.For example，one famous inventor— Benjamin Franklin—got his start when he was only 12.
So you don't have to be an adult to be an inventor.One thing you do need，though，is something that kids have plenty of curiosity and imagination.
So what should you do if you have what is a great idea for an invention？Talk to a friend or family member about it.Then ask them to help you create a working model—called a prototype of your idea.
Once you have a prototype，you can test it.Sometimes your idea turns out to be not as great as you thought.At other times，though，you realize it is a good idea and your prototype can help you figure out how to make it even better.
If your idea is really a good one，an adult can help you contact companies that might be interested in it.You will also want an adult's help to get a patent for your idea.
[知 识 梳 理]
Ⅰ.核心单词
一、单词拼写
1．The young nurse was swept away by the strong ________(水流)．
2．The famous movie star has been longing for a ________(稳定的)marriage.
3．He gave a positive________(鉴定)of the killer.
4．Be ________(务实的)！We can't afford the car and the vacation.
5．He sees local history as an________(伸展)of family history.
答案 1.current 2.stable 3.identification 4.practical 5.extension
二、单句语法填空
1．It remains to be seen whether this plan is ________(practice)enough to keep the project going.
2．The government has set out ________(make)many needed reforms.
3．The days are gone forever________the Chinese were looked down upon.
4．Give me a chance，________I will give you a wonderful surprise.
5．The grandma dived ________ the bag，brought out two apples，and gave them to the beggar.
答案 1.practical 2.to make 3.when 4.and 5.into
Ⅱ.重点短语
用所给短语的适当形式填空
1．Our lines can get very busy，but please keep trying and you will soon ____________.
2．It is not easy to learn English well，but if you ____________，you will succeed in time.
3．My clock was ____________ and woke me up at 3 o'clock this morning.
4．At 8 am，we gathered at the foot of Daqing Mountain and ____________ for the top in high spirits.
5．When you were out，John rang up，and he wanted you to ________ him ________.
答案 1.get through 2.hang on 3.out of order 4.set out 5.ring；back
【知识链接】
associate vt.联想；联系；n.同伴；伙伴
拓展：associate...with...把……和……联系在一起；由……联想到……
be associated with...和……有关
associate with sb与某人交往或打交道
association n．联合；联想；交往；协会；团体
in association with...与……合伙/合作
I like her，but not her associates.
我喜欢她，但不喜欢她的同伴。
We should associate ourselves with this large firm.
我们应该和这家大公司联合。
We are working in association with a local company to raise money for the homeless.
我们正联合一家当地的公司，为无家可归的人筹款。
单句语法填空
①His grandfather has kept reminding him not to associate ________ bad companions whether in school or in society.
②In the children's minds summer ______(associate)with picnics.
答案 ①with ②is associated
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