一、阅读理解。
A
As we all know, there are eight planets in the solar system. These planets are all round, like balls, going around the sun.
Venus is only a little smaller than Earth, about 95% of Earth's diameter and 80% of Earth's weight. The word “Venus” means the goddess（女神）of love and beauty in Greek.
We name the planet “Venus” probably because of its brightness. We human beings knew Venus a long time ago. It is the brightest thing in the sky except（除……之外）the Sun and Moon. People also call Venus the Morning Star or the Evening Star, because Venus shines brighter shortly before sunrise and after sunset.
A lot of observations（观测）of Venus were important to Copernicus's Heliocentric Theory（日心说）. In 1961, scientists sent the first spaceship to explore Venus. Now there are more than 40 spaceships on Venus and we can make sure that this bright star will have a bright future.
根据材料内容选择最佳答案。
( )1. What's Venus like?
A. It's bigger and heavier than Earth.
B. It's smaller but brighter than Moon.
C. It's bigger but lighter than the Sun.
D. It's smaller and lighter than Earth.
( )2. What does the word “Venus” mean in Greek?
A. The goddess of love and beauty.
B. The Morning Star.
C. The Evening Star.
D. The center of the solar system.
( )3. What can we learn from Paragraph 3?
A. Venus is the brightest in the sky.
B. Human beings knew Venus a long time ago.
C. Venus is a special star in the solar system.
D. Venus only appears in the morning and in the afternoon.
( )4. What is Paragraph 4 mainly about?
A. The size of Venus.
B. The importance of Venus.
C. The exploration of Venus.
D. The future of Venus.
( )5. What's the best title for the passage?
A. A Bright Star, a Bright Future
B. Center of the Universe
C. Huge Space, a Small Star
D. Let's Fly to Venus