Question

【题目】根据短文内容，选择最佳答案。
Stop reading for a minute and think about what you see when you look up at the sky on a clear night. You probably see many stars (星星). Long long ago, farmers watch some stars to know when to plant their crops. Travelers did so to find their way in the dark. Today stars are still important to some people.
Scientists find that most stars are very big. In fact some stars are so far away that it would take millions of years to get to them even by spaceship.
Another thing we know today about stars is that some are made up of(由…组成) hot gases. The gases are so hot that they send out light. If you watch a star carefully, you may notice that it twinkles(闪烁)sometimes. As you may understand, light from a star must shine through the air before you can see the star. Air is always moving, it makes light from the star move back and forth. When the light moves, it makes the star twinkle. Stars also have different colors. The colors of a star depend on how hot it is. To our surprise, the cool stars are red and the hottest stars are white.
（1）Long long ago, travelers ______ to find their way in the dark.
A.made a fire
B.used a lamp
C.watched stars
D.used sticks(棍)
（2）—Why does a star sometimes twinkle?
—Because ______.
A.its light travels through the moving air
B.its light is too bright
C.it is made up of hot gases
D.it is too dark
（3）Res stars are ______.
A.hot
B.cold
C.warm
D.cool
（4）Which is the TURE according to the passage?
A.Today stars are not important to people at all.
B.It took us a short time to get to the stars by spaceship.
C.You can see the star before it shines through the air.
D.Farmers knew when to plant their crops by watching some stars.
（5）The gases can send out light because ______
A.they are very far away
B.they are very hot
C.they have different colors
D.they can move

Answer 1

【答案】
（1）C
（2）A
（3）D
（4）D
（5）B
【解析】本文介绍了天空中的星星的有关知识。在古代，人们通过观察星星知道该什么时候种植庄稼，旅行的人通过观察星星找到回家的路。有些星星离我们很远，就算乘宇宙飞船也要很长时间到达那儿。
（1）细节理解题。根据Travelers did so to find their way in the dark可知旅游者通过在晚上观察星星找到回家的路。所以答案是C。
（2）细节理解题。根据light from a star must shine through the air before you can see the star. Air is always moving, it makes light from the star move back and forth. When the light moves, it makes the star twinkle可知。所以答案是A。
（3）细节理解题。根据the cool stars are red and the hottest stars are white可知。所以答案是D。
（4）细节理解题。根据Long long ago, farmers watch some stars to know when to plant their crops可知D是真实的。所以答案是D。
（5）细节理解题。根据The gases are so hot that they send out light可知。所以答案是B。