How old is the universe ?D. Why i the universe so old? 相关知识点: 试题来源: 解析 【考点】科教类阅读;说明文阅读.【分析】这是一篇说明文。文章主要讲述宇宙的寿命。【解答】(1)B.细节理解题,由第二段第一句"Because the universe is expanding atanaccelerating pace, the faster t appears to ...
The universe is about 12 billion years old. "This is long enough for other planets to have intelligent life," says Shostak and Barnett. The second reason is size——the universe is huge. "Tools like the Hubble Telescope(哈勃望远)镜)have shown that there are at least 100 billion galaxies,...
Scientists always want to know more about the universe(宇宙).Years ago, they knew many things about the Moon. They knew how big it is and how far it is fromthe Earth. But they want to know more about it. They think the best way is to send men to the Moon.The Moon is about 384...
C. How old is the universe? D. Why is the universe so old?相关知识点: 试题来源: 解析 1. B 2形边四 3. 律 4. 开结果一 题目 阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项。 The universe likes to be shy about its age, but astronomers believe they have a pretty goo...
C.how oldD.how heavy(2)The earth is about 384,000 kilometers away from the ___.A.moonB.universeC.sunD.space(3)A plane cannot fly to the moon because ___.A.the plane must be driven by a manB.there is no gas in the planeC.the plane is not strong enoughD.there is no air ...
根据“Years ago, they knew many things about the moon. They knew how big it was”可知,他们知道月球多大。故选A。 (2)题详解: 细节理解题。根据“The moon is about 384, 000 kilometers away from the earth.”可知,月球距离地球约384000公里。故选B。 (3)题详解: 细节理解题。根据“A plane...
根据第一段中的The universe likes to be shy about its age,but astronomers believe they have a pretty good idea of the range.(宇宙羞于谈及年龄,但是天文学家们相信,他们很清楚这个范围。)并通读全文可知,文章主要讲述人们采取不同方法测得的宇宙寿命不同。所以,选项D.Howoldistheuniverse?(宇宙多大年纪...
C. How old is the universe? D. Why is the universe so old? 相关知识点: 试题来源: 解析 B 【文章大意】本文是一篇说明文。 文章主要介绍了关于探索宇 宙年龄的科学研究。 24.B 细节理解题。 【解题思路】根据第二段第一句中的“Because the universe is expanding at an accelerating pace”可知,...
how old D. how big 2. The Earth is about 384,000 kilometres away from the ___. A. space B. universe C. Sun D. moon 3. A plane can not fly to the moon because ___. A. there is no air above 240 kilometres away from the Earth B. there is no gas in the plane C. the ...
答案出处:第一段第三句话“They know how big it is and how far away it is from the earth”。他们知道月球有多大还有它距离地球有多远。 因此,正确答案是D。 2. A 此题是细节理解题。答案出处:第一段第五句话“They think the best way to is to send men to the moon”。他们认为最好的办法就...