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Now, in the 21st century, there are lots of great inventions. 1. However, when we enjoy that, we should never forget those who devoted themselves to making people's life better in the 20th century.

2. Like many other famous inventors, they failed many times. However, they never gave up—even though almost no one was interested in what they were doing. For many times, they risked their lives to test their airplane.　 Finally, after lots of calculations and improvements, they succeeded.　

3. The invention led to a quantum leap in human history. From then on, better and safer airplanes have been invented and long flights have become increasingly convenient and comfortable. Round the world trips have become a reality. Without the Wright brothers, we might still have to spend days, weeks or even months travelling to distant places today.

The Wright brothers have also inspired generations of people to make great achievements in their own chosen fields. China, for example, had to depend on the West for its large passenger aircraft. Of course, our country didn't want to continue that way forever. With the same adventurous spirit as that of the Wright brothers, Chinese people kept trying and made great progress. Today, China has its own large passenger aircraft. 4.　

Thanks to the Wright brothers, humans realized the dream of flying. Till today, their experience still has a great influence on young people. 5. I think they are among the greatest people of the 20th century.

Word Bank

calculation 计算 leap 飞跃

inspire 鼓舞 quantum 量子

A.That's an important step forward.

B.The result of their work shocked the world.

C.In 1903, the Wright brothers invented the airplane.

D.They inspired young people to realize their own dreams.

E.We enjoy a lot of convenience, thanks to the latest technology.

九年级英语补全短文5选5困难题

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Dale, another student, loves technology. He was not really interested in class before, b9. now he likes the classes very much. "It helps me use w10. I know about technology at school," Dale said. "Most importantly, I enjoy the classroom. This, of course, will help my studies."

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完形填空
(2012山东临沂)
We are now living in the 21st century．Is your classroom living in the 21st century，too？Tony is a student in Grade 8 at an American middle school．He was surprised when he saw his modern________on his first day of school．
In Tony’s classroom，there are many new electronics(电子设备)，like iPads．This semester，they will________the electronics to take notes，watch videos and do projects and homework．“It’s________，”said Tony．“I prefer using an iPad to work on math or other pmjects________my team members．”
The school uses new technology(技术)in classrooms to help students see，hear，touch and sometimes experience their tasks．“Technology is pretty common in most of our classrooms now，”the head teacher said．“We are trying to use technology to________the world to kids．It can bring the outside world in．”
Science teacher Mr Miller agrees．“It is a________way for students to know the outside world，”he said．
Mr Miller now regards himself as a guide of learning________a teacher．“If they have a question for me，I will try to teach them________to find the answers rather than tell them what the answers are，”he said．
Dale，another　student，loves technology．He was not really interested in class before，________now he likes the classes very much．“It helps me use what I know about technology at school，”Dale said．“Most importantly．I________the classroom．This，of course，will help my studies．”
1.
A．dormitory
B．playground
C．library
D．classroom
2.
A．allow
B．use
C．want
D．help
3.
A．boring
B．relaxing
C．amazing
D．disappointing
4.
A．on
B．by
C．at
D．with
5.
A．open up
B．look up
C．put up
D．call up
6.
A．wrong
B．slow
C．quick
D．bad
7.
A．because of
B．instead of
C．according to
D．thanks to
8.
A．why
B．what
C．when
D．how
9.
A．but
B．and
C．or
D．so
10.
A．stand
B．hate
C．enjoy
D．dislike

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1.A.classroom B.playground C.library
2.A.allow B.use C.want
3.A.boring B.relaxing C.amazing
4.A.with B.by C.on
5.A.put up B.open up C.look up
6.A.wrong B.quick C.slow
7.A.because of B.instead of C.think of
8.A.how B.when C.why
9.A.and B.but C.or
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