题目内容
______ in the sun is bad _______ your eyes.
A.Read,for B.Reading,to C.Read,to D.Reading,for
D
One day, Allan and his friend Henry went swimming in a river. It was very hot. How happy they were in the river! After they got out of the water, they played games in the sun for a while.
On their way back, Henry saw some flowers. He liked flowers very much and ran into the green field to look at them. Now Allan was walking by himself.
Then he heard Henry calling out, "A snake(蛇)! Help!..."
"What's wrong with you?" asked Allan.
"A snake bit(咬)me in the leg. Come here!"
Allan ran over and saw a small red wound(伤口)on Henry' s leg.
"The snake was in the grass. I didn't see it."
"Sit down quickly"! Allan told Henry.
Allan put his mouth at the little red wound and began to suck(吸)at it. In this way he saved (挽救)Henry's life. "Oh, Allan, it's very kind of you to help me."
"That's all right. We are friends and we must always help each other."
【小题1】It was________ when-Allan and Henry went out.
A.hot | B.cold | C.raining | D.wet |
A.the whole morning | B.for 2 hours | C.long | D.for a while |
A.Allan; leg | B.Allan; head | C.Henry; leg | D.Henry; head |
A.workers | B.good friends | C.brothers | D.farmers |
A.Henry went to look at the flowers with Allan. |
B.Allan saved Henry' s life. |
C.Allan saw the snake. |
D.They ran to the hospital at once. |
We humans are only born with one set of eyes, so it's our job to take care of them for our whole lives. The good news is that if we do a few simple things every day, we can maintain (保持) our eyesight and reduce (减少) the risk of ever hurting our eyes.
Almost all doctors agree that we can improve and maintain good eyesight by eating lots of fresh fruits and vegetables. It is especially important for us to eat vegetables like carrots and sweet potatoes. Besides, we need to protect our eyes when we spend a long time in bright sunlight. The best way to do. this is by wearing sunglasses that have 100% UV (紫外线) protection. What's more, it is necessary to protect our eyes when we work with dangerous chemicals (化学物质). For this reason we should always wear goggles in chemistry labs at work or at school. Finally, we should not spend too much time in front of the computer or television screen. That is why doctors advise if we have to use a computer for a long time, we should take a short break every fifteen or thirty minutes.
Maintaining good eyesight is important. If we do these few simple things we can protect our eyes and reduce the chances of losing our eyes. As the popular English expression goes, “It's all fun and game, until someone loses an eye.” When people say this, they mean that losing an eye is a very terrible thing.
【小题1】When should we wear goggles?
A.While watching TV. |
B.While using a computer. |
C.While staying in the sun. |
D.While working in a chemistry lab. |
A.Two. | B.Three. | C.Four. | D.Five. |
A.We should eat lots of fresh fruits and vegetables. |
B.We should take a short break every fifteen or thirty minutes. |
C.We should not spend much time in front of a computer or TV. |
D.We should do a few simple things every day to keep our eyesight. |
A.Fun and Games with Our Eyes |
B.Caring for Our Eyes |
C.The Risk of Hurting Our Eyes |
D.Born with One Set of Eyes |
What is color? Why do some of the things around us look red, some green, others blue?
Colors are really made by deflected (反射) light. We see color because most of the things reflect light. In the same way, if something is green, it reflects most of the green light. If something reflects all light, it is white. If it doesn’t reflect any light, it is black.
Some of the light is reflected and some is taken in (吸引) and turned into (变成) heat (热能).The darker the color is, the less light is reflected, the more light is taken in. So dark-colored clothes are warmer in the sun than light-colored clothes.
1.When something reflects light, we can _____.
A.see its color |
B.see its heat |
C.not see its color |
D.see nothing |
2.Something looks white because it reflects _____.
A.some light |
B.no light |
C.all light |
D.most light |
3.the dark-colored clothes are warm because ____ is taken in.
A.more light |
B.less light |
C.more color |
D.less color |
4.In summer ______ make people feel cool.
A.dark-colored clothes |
B.red-colored clothes |
C.green-colored clothes |
D.light-colored clothes |
5.What’s the best title(标题)of this passage( 短文 )?
A.Dark color |
B.Color |
C.Heat |
D.Clothes |