题目列表(包括答案和解析)
Sandy is still puzzled about the meanings of some words. Help her match the words with their meanings.
缺词填空 先通读下列短文,掌握其大意,然后根据短文内容和所给首字母,在空格内填入一个适当的词,使短文意思完整。所填单词在题后横线上必须完整写出(本大题共6分,每格0.5分)
Suppose you are reading a book. Suppose you suddenly close your eyes, can you still see the book? "Of course not." you will say. But can you tell why? You would p__1. say, "When I close my eyes, my e__2.___ cannot get out of my eyes to get to the book." Many others might give an explanation(解释) very much like the above . But this explanation is w__3.___.
You cannot see any object if light from that object doesn’t get into your eyes. Some of the things you see give off light of their own.
The sun, the star, a lighted lamp are examples that can be seen by their own light. S__4.__ things are luminous(发光的). Most of the things you see are not giving off light of their own. They are simply reflecting(反射) light that falls on them from the sun or some other luminous bodies. The moon, for example, doesn't give off any light of i__5._ own. It's non-luminous. You see it because sunlight falls on it and some of it reflects in your d__6.__. So moonlight is only second-hand sunlight.
When you look at a book, it sends to your eyes some of the light which falls on it, and you see the book. If light could be kept out from w__7.__ you are, so that there would be no light for the book to reflect, then you could not see the book e__8.__ with your eyes wide open.
Light travels so fast that the time it t___9.__ from the book to your eyes is so s___10._ as if there was none at all. Light r___11.__ us from the moon, which is about 380,000 kilometers away, in only a little more than a s__12.__.
先通读下面的短文,掌握其大意,然后根据短文内容和所给首字母,在空格内填入一个适当的词,使短文意思完整,所填单词在题后横线上必须完整写出。
Who was Leonardo da Vinci? You may answer without t___1___:“He is the painter of the Mona Lisa.” What e___2___ do you know about him? Da Vinci was more than just a great artist in history. He’s also f ___3___ as a scientist and an inventor.
Leonardo da Vinci was b___4___ to a rich family in Florence, Italy, in 1452. From childhood, Leonardo was given a good e___5___ and he showed talent at painting. By the age of 26, da Vinci had already become a famous p___6___.
He designed many i___7___ machines. Da Vinci’s idea led to the modern tank(坦克). Though da Vinci never b___8___ many of the inventions he designed, some of the things he i___9___ in the late 1400s are in use today.
As a scientist, da Vinci was very interested in the h___10___ body. He spent a whole year c___11___ up dead bodies in hospitals to learn about human anatomy(解剖学). He made more than 200 d___12___ of bodies.
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