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 _____.

2.Something looks white because it reflects _____.

3.the dark-colored clothes are warm because ____ is taken in.

4.In summer ______ make people feel cool.

5.What’s the best title(标题)of this passage( 短文 )?

Joe loved to eat hamburgers in fast food restaurants with his friend Daniel. Every week, they would go to eat hamburgers.
One day, Joe       a dream. In his dream, there was a very big hamburger. And there was a voice said, "Eat it! It is       !" So Joe took this big hamburger and began to eat. But suddenly Joe felt sick and had a serious stomachache. When he looked around for help, he saw        in a mirror. He became very fat!  "No!" Joe shouted and      from the terrible dream. He ran to the bathroom quickly      if he became fat in real life. The dream made Joe think if he had a healthy         habit.
The next day, Joe and Daniel went to eat hamburgers as usual(像往常一样).      Joe stopped at the door of the restaurant and said, "Daniel, if we keep eating so       hamburgers, we will get fat or sick. Shall we eat       today?"  Daniel said, "Of course. Why do you change(改变) your mind today?"
"I think fast food isn't all bad. But we shouldn't eat them too often," said Joe.       that day, they began to eat fewer hamburgers and more healthy food.

— Could you tell me ____ for the meeting this morning?

— Because the traffic was bad.

One day Mrs. Wilson went shopping with Tracy and Ben. They went to the supermarket in the new shopping center.” Why do you buy things here?” Tracy wanted to know. “Because they are cheaper here than at the corner store near our home,” Mrs. Wilson said.” Help me check the prices, please.” The Wilsons were not rich and Mrs. Wilson was always careful with her money. She looked carefully after the prices of things. She bought lots of things in the supermarket. When they got home, the children said,“ We don’t think you saved money by going to the supermarket.” “Of course I did,” Mrs. Wilson said. “ Everything was cheaper there.” “We know,” the children said,“ but we came home by taxi because we had too much to carry. The taxi fare was more than the money that you save! ” Mrs. Wilson added everything up. Her children were right.

1.The things at the corner store were ______than those in the supermarket.

2.Mrs. Wilson ______ in the end.

3.From the passage we know the children were _________.

4.Mrs. Wilson will _____________.

5.The best title for the passage is ____________.