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
1.The advertisements above are about ______.
A. shopping B. food C. travel D. hotels
2.If you go to Bangkok, you can ＿＿＿＿＿＿．
A. Climb Mountains B. enjoy the scenery of the forests
C. live in the Post Hotel D. buy fruits while sitting in your boat
3. _____ is one better way to prevent the strong sunshine in Bangkok
A. Going to the sandy beaches B. wearing a hat
C. Climbing up the mountains D. staying in the forests
4.Which place will you choose if you want to visit both mountains and beaches?
A. Soll in Austria. B. Bangkok in Thailand.
C. the Floating Market. D. Kauai in Hawaii.
5.According to(根据) the advertisements, we know that _______.
A. the hottest travel place is Soll
B. maybe it often rains in the centre of Kauai
C. the Floating Market is in the middle of Bangkok
D. the Post Hotel in Austria is clean but the price is high
Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 41.______, plant a lot of trees. But this may not be the best way to make your home a 42._____ place.
Last week we visited a park in Hebei. We were 43._____ to find most of the trees had been burned. The workers told us that the trees 44._____ soon after they were planted because they weren’t watered well enough. 45._____ workers burned them and cleaned the place for 46._____ trees to be planted this year. 47.______ a card found in one of the dead trees, a student wrote,” I hope this tree will grow up with me to 48.______ the backbone (栋梁) of our country.” The workers said that the survival (存活) of the trees was really more important than 49.______ trees were planted.
Some people in Beijing now have a new idea that they can donate (捐赠) some money and let professional (专业人士) plant and 50.______ the trees.
1. A. students and teachers B. old and young
C. boys and girls D. mother and father
2.A. smaller B. colder C. warmer D. larger
3.A. pleased B. happy C. interesting D. surprised
4.A. died B. grew C. bought D. planted
5.A. Though B. When C. Because D. So
6.A. few B. old C. new D. dead
7.A. Over B. From C. On D. About
8.A. need B. hold C. plant D. be
9.A. how many B. when C. how soon D. why
10.A. take out B. take down C. take up D. take care of
Be careful of the dog! It’s . Keep away from it.
A. gentle B. aggressive C. lovely D. interesting
I prefer ____a gift to ____ one.
A. receive, give B. give, receive C. receiving, give D. giving, receiving
You are too late. The film ______ since half an hour ago.
A． has begun B. has been on C. began D。begins
