阅读理解。
There have been many great inventions  that changed the way we live.  The first great invention was
one that is still very important today - the wheel. This invention made it easier to carry heavy things and
to travel long distances.
In the early 1800s the world started to change.  There was little unknown land in the world. People
began to work to make life better.
In the 19th century, many great inventions were made. Among them were the cameras and the light
bulbs. There were more great inventions  in the early  20th  century,   such as  the  helicopters in 1907,
movies with sound in 1910 and jet planes in the 1930s. This was also a time when a new material was
first made. Nylon came out in 1935. It changed the kind of clothes people wear.
By this time most people have had a very good life. Man has a desire to explore more.  The world
was known to man but the stars were not. Man began looking for ways to go into space. Russia made
the first step. Since then other countries, including the United States and China,  have made their steps
into space.
In 1969 man took his biggest step. An American first walked on the moon.  This  is certainly just a
beginning. New inventions will some day allow us to do things we have never dreamed of.
1. This passage mainly talks about ________.
A. why cars were very important
B. when the light bulb was invented
C. which country made the first step into space
D. the process (进程) of inventions
2. Nylon came out nearly at the same time as _______.
A. the helicopter
B. the camera
C. jet planes
D. movies
3. _______ made the first step into space.
A. Russia
B. China
C. America
D. Japan
4. What does " a desire" mean in Paragraph 4?
A. a good way
B. a new invention
C. a strong wish
D. a wonderful idea
5. Which of the followings is NOT true?
A. The wheel was the first great invention, but it is not very important today.
B. An American first stepped on the moon.
C. In the early 1800s there was little unknown land.
D. New inventions will change our lives greatly in the future.

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