Question

阅读理解 　　Jupiter’s Moons and How They Travel 　　The many moons of Jupiter travel around the planet in different directions(方向)． 　　Jupiter is the largest planet in our solar system．Over the years, scientists have found that Jupiter has its own small solar system．Earth has one moon．Jupiter has at least sixteen and probably more． 　　Since there are so many moons, scientists began to number them．The numerals(numbers)tell the sequence, or order, in which the moons were found．They were slower to name the moons．All of Jupiter’s moons now have a name as well as a number． 　　The first five moons to be discovered are known as the “inner moons”．But they are not the closest to the planet．The closest is only 127,600 kilometers away from Jupiter．All the inner moons circle the planet in counter-clockwise direction, that is, opposite of the hands of a clock． 　　Jupiter’s middle group of moons are at least 11,100,000 kilometers from the planet．They also move in a counter-clockwise motion(moving)．The four farthest moons are at least 20,700,000 kilometers away．These are called “outer moons”．They circle in a clockwise motion． 　　How many more moons do you think will be discovered? (1) What does “solar system” in this article mean?________ [　　] A． 银河系 B． 宇宙空间 C． 流星雨 D． 太阳系 (2) Things that travel in the same direction as the hands of a clock are said to be traveling in a________． [　　] A． clockwise direction B． counter-clockwise direction C． same direction D． different direction (3) Jupiter’s ________group of moons travel in a clockwise direction． [　　] A． planets B． inner C． middle D． outer (4) The numbers given to Jupiter’s moons tell ________． [　　] A． the order in which they were discovered B． the order in which they travel C． the order of their distance from Jupiter D． the order of names (5) According to the passage，which of the following statements is true? [　　] A． None of Jupiter’s moons have names． B． Most of Jupiter's moons circle clockwise． C． Jupiter's inner moons were discovered first． D． Jupiter is the nearest planet to the earth． (6) How far away are the middle group of moons from Jupiter? [　　] A． It’s not mentioned． B． 11,100,000 kilometers away． C． 127,600 kilometers away． D． 20,700,000 kilometers away．

Answer 1

答案：1．D;2．A;3．D;4．A;5．C;6．B;
解析：

(1)	文中介绍Jupiter(木星)是最大的行星，地球只有一个月亮，而木星至少有16个，甚至更多．由此可见，solar system即为太阳系，木星同地球一样都是太阳系中的行星．
(2)	“clockwise direction”指“顺时针方向”．文中对“counter-clockwise direction”的解释是“opposite of the hands of a clock”，即“逆时针方向”．
(3)	最远的四个月亮称为“outer moons”，它们以顺时针方向转．
(4)	由文中“The numerals(numbers)tell the sequence, or order, in which the moons were found．”这句话可知．
(5)	统观全文，可知选项A、B不符合文意，根据常识判断，选项D也不正确．再由环绕木星旋转的月亮团以依次发现的时间为序，由此推理可得出“the inner moons were discovered first”．
(6)	在文中可找到“Jupiter's middle group of moons are at least 11,100,000 kilometers from the planet．”．根据这一句话的意思，便可得知此题答案为B． 　　这是一篇关于宇宙知识的科普短文．在太阳系中，木星是最大的一颗行星．围绕其旋转的卫星有很多．科学家们首先发现的是离它较近的五颗名叫“内部月亮”的卫星，它们是以逆时针方向绕其旋转的．木星的不计其数的中间月亮团也是以逆时针方向绕其旋转的．但它的最近的四个“外部月亮”却是以顺时针方向绕其旋转的．