题目内容
（请给出正确答案）
A．The rocket should be inexpensive to construct.
B．The rocket is capable of lifting heavy spacecraft into orbit.
C．The rocket should be easily controlled.
D．The rocket should be inexpensive to operate.
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更多“A．The rocket should be inexpen…”相关的问题
______ can send a spaceship into space.
A．The booster
B．The second rocket
C．The third rocket
D．The multi-stage rocket
After ______ falls, the spaceship travels in space itself.
A．the booster
B．the first rocket
C．the second rocket
D．the third rocket
Which of the following line is from the US official national anthem？
A．The rocket's red glare, and the bombs bursting in air...
B．Oh beautiful for heroes proved, in liberating strife...
C．America, America, God shed His grace on thee...
D．America, America, God mend thy every flaw.
Which of the following is TRUE？
A．The spaceship travels to its destination with its own fuel.
B．The booster separates and drops when all the fuel it carries has used up.
C．The multi-stage rocket is powerful enough to send the spaceship to its destination.
D．The spaceship gets out of the Earth's gravitation force and flies to its destination on its own.
Not until quite recently ______ any idea of what a guided rocket is like.
A) did I have B) do I have C) should I have
D) would I have
Russia put off its manned spacecraft mission because
A．the astronauts needed to be temporarily evacuated.
B．an unmanned ship using a similar rocket crashed last week.
C．the supplies at the space station were not abundant.
D．the degree of radiation had a huge rise recently.
听力原文： Since the beginning of history, people on the earth have always watched the sky and wondered about the things they saw. As centuries of discoveries flew by, it became obvious that humans would not be content to just gaze at the solar system. We wanted to fly into it and explore it as well.
Once again, technology allowed us to accomplish our goal. (33)On October 4, 1957. a Soviet rocket sent the first man-made satellite into space. It was called Sputnik, the Russian word for "traveler". Even though Sputnik was nothing more than a small aluminum ball with a radio inside, it started a whole new era of space exploration.
In May 1961 President John F. Kennedy challenged American scientists to land a person on the moon before the end of the 1960s. (34)In the quest to do this, scientists faced many obstacles. For example, to get a spaceship all the way to the moon and back would demand a rocket engine powerful enough to make the trip. (35)Scientists realized that it would be difficult for one heavy rocket loaded with fuel to reach the moon. Instead, they decided to use a multistage rocket. When the fuel in one stage of the multistage rocket is used up, that stage will fall away. This makes the rocket lighter, and the engine of the next stage can go on providing power and thrust the rocket even faster and higher. As you know, Americans successfully landed on the moon in July 1969. Since then our knowledge of the solar system has increased dramatically.
(34)
A．The Russian name for the spacecraft means "traveler".
B．It was launched toward the end of the 1950s.
C．It was resulted from Soviet and American scientists.
D．The spacecraft was a small aluminum ball fitted with a radio.
This passage deals mainly with______.
A．the gravitational pull of the Earth and the Moon
B．the factors involved in firing a rocket into the outer-space
C．the gravitational fields of the Earth and the Moon
D．the speed and direction of a rocket traveling in the outer-space
One of the sides of the board should be painted yellow, and ______.
A．the other is white
B．another white
C．the other white
D．another is white
A．The man should hurry to the library before it closes.
B．The man should use the phone in the student center.
C．The student center will close in an hour.
D．There's no pay phone in the library.
