54. The 　　　(follow) day, they will set off to pick up litter.

53. Sometimes we shake our heads to show the d　　 .

52. The boy is so 　　　(power) that he can carry the heavy box.

51. Our classmates want to set up an 　　　(organize) to protect our environment.

50. My parents often e　　 　me to try again when I fail to do something.

(B)用括号内所给词的适当形式填空。

49. We think that a　　 　are more important than words.

48. He said “Yes.” By n　　 　his head.

47. Everyone uses a t　　 　to wash his face in China every morning.

46. To reduce pollution, more and more people use e　　 　cars to go to school.

(C)

Have you ever heard of the story of Earth Day? Now let me tell you.

A man named John McConnel from the United States started Earth day in 1970. In the beginning, it was held on one day in spring when the day and night are of the same length(长度) around the world. Now it’s celebrated on April 22. Earth day is now celebrated all over the world.

Earth Day is a very special day. It makes all of us think about problems we make for the earth. It’s not only a special day in the city where we live, but a day that the whole world celebrates.

Some countries have Earth Day celebrations, and some people and groups join in Earth Day projects such as “Protect Our Home” and “Water for Life”.

You can join in one of the projects, or start one of your own. It can be something small like planting a tree with your mom, or something large like cleaning up a park with your classmates or friends. You can do almost anything. Try to think of something you would like to do.

Why do we celebrate Earth Day? Because we have only one earth and it’s our only home. It’s getting very dirty. It’s our duty to protect our beautiful home. Earth Day is a day to call on people around to save our earth.

根据短文内容填空。

41. An 　　　　called John McConnell started Earth Day in 1970 and now is celebrated all over the world on the 　　　　of April.

42. On Earth Day people don’t 　　　　celebrate this special day also think more about what’s

　　 　to the earth.

43. Some countries have Earth Day 　　　　by 　　　　in Earth Day projects.

44. It doesn’t 　　　　　　　　your project is small or large.

45. We celebrate Earth Day to 　　　　people around the world to 　　　　our earth.

Ⅴ. 词汇。(10分)

(A)根据句意及首字母提示，补全单词。