更多"The exploration of outer space is a"的相关试题:
[单项选择]The exploration of outer space is a great (triumph) of modern science.
A. superior
B. symbol
C. succession
D. success
[单项选择]Space vehicles were launched into outer space_________ search of another living planet.
A. to
B. at
C. in
D. for
[单项选择]
There Pictures from outer space now show us how much land has changed on earth. These images are taken by Landsat 7, a government satellite. The satellites have been used for 27 years. They reveal the clear-cutting of forests in the northwestern part of the United States. Pictures show the loss of rain forests in South America.
NASA’s Darrel Williams speaks about the Landsat 7 Project. He said that an eruption caused trees to burn up in a large forest. Fifteen years later, pinkish images from space show that the trees and plant life are growing again. Williams says that clear-cut areas easily show up in the pictures. He wants Americans to look at how much land is being cleared of forests in our country.
Satellites have provided other information about changes on earth. In the past ten years, more than four miles have shrunk from glaciers in Alaska. Landsat 7 received these computer images of Glacier Bay in Alaska.
Hurricanes Floyd and Irene have dama
A. a bright, white light that is reflected
B. little tiny trees that are growing
C. vegetable gardens that are planted
D. a light, pinkish view from space
[填空题]The first walk into outer space was taken by a Soviet astronaut.
Astronaut Zhai Zhigang became the first Chinese to walk in space on September
27, 2008. It showed that it was quite safe for a man to be outside the spaceship
for a certain period of time. But to walk in space, astronauts have to meet with
many kinds of difficulties and dangers.
The spaceship goes
round the earth at an altitude of about 200 kilometers above its surface. At
such altitudes there is no atmosphere which protects the life on the earth. The
conditions of outer space are very harmful to man.
The boiling
point of liquids goes down with pressure. But pressure outside the spaceship is
nearly zero. In such conditions the decompression of the spacesuit may cause the
boiling of the blood and quick death. There is radiation from space and it is
harmful.
Breathing problems in space can be solved with the
help of the spacesuit. Another problem is heat. Man gives off heat in the course
of his activity, and the harder the labor is, the greater the amount of heat is.
In space unless special measures are taken, the heat inside the spacesuit
would make the conditions difficult.根据短文内容，完成下面的句子。(每空一词)
Zhai Zhigangbecame the first Chinese astronaut ______ in space on September 27, 2008．
[单项选择]The time will come （ ） man can fly to outer space freely.
A. that
B. when
C. in that
D. which
[多项选择]Is Outer Space Worth Exploring
1．人类探索太空有了巨大发展。
2．有的人对探索太空提出异议；有的人对探索太空持赞成态度。
3．结论
