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.(　　)