题目

用直尺测量笔的长度，注意直尺的与笔的一端对齐，读数时视线要与尺面 ，记录测量结果时，要写出数值和 。 答案：【1】零刻度线【2】垂直【3】单位阅读下面短文，并做后面的题目，从A、B、C、D四个选项中，选出最佳答案。 When you look at the sky at night, the moon looks bigger than the stars. In fact, the moon is much smaller than the stars and the sun. It is much smaller than the earth. But the moon is much closer to us than any star. That is why it looks so big. If you hold a coin(硬币) close to your eye, it looks big. If you look at it across the room, it looks small. The moon moves round the earth. It makes one trip in about four weeks. The moon looks flat(平的) to us. But it is a round ball, like the earth. People once thought the moon had fires on it. They thought the fires make it bright. Now we know the moon is like a mirror. It gets its light from the sun. 1. At night the moon looks ______. [　　] A. bigger than the sun B. smaller than the sun C. bigger than the stars D. smaller than the stars 2. In fact the stars and the sun are ______. [　　] A. as big as the moon B. not as big as the moon C. less big than the moon D. much bigger than the moon 3. Why does the moon look bigger than the stars? [　　] A. Because it moves round the earth. B. Because it is far away from us. C. Because it is a round ball D. Because it is closer to us than the stars. 4. The moon gets its light from ______. [　　] A. the fires on it　　　B. the earth C. the sun　　　　　　　D. the stars 5. The topic(题目) of this article should be ______. [　　] A. The Moon　　　 B. The Sun C. The Earth　　　D. The Stars