通读下列短文,掌握其大意,然后在各题所给的四个选项(A、B、C、D)中选出一个最佳答案。

Once again, I had run away and really did not know why. I walked out of the gate to go to school and then kept   31  _. I had just turned eleven years old the week before. It was almost dark; I was tired, scared, cold, and all alone. I had not eaten all day and was afraid to turn    32 _ into the police.

As darkness fell, I made my way over to the city park   33 _ on Park Street. I entered the darkened area and sat down on one of the wooden benches(长凳).“Well, hello, young man.” A voice came from    34 _ me. I jumped, almost falling off the park bench. I could feel my heart beating in the side of my neck. I could   35  _ catch my breath. I looked back and saw a woman standing behind me in the shadows. She found I was    36 _ because of feeling cold, so she took off her large scarf and covered it   37  _ my shoulders.   38 _ my eyes, she asked me if I need something to eat. After I said “yes”, she held out her hand and told me to take the very letter
  39  _ I was unable to see to the store owner. I looked at her outstretched arm but saw    40 _ in her hand. However, I   41  _ my hands slowly, acting as though I was taking something from her hand.

I came to a store with a   42  _ sitting behind a counter. I opened the door, very slowly I held out my hand which has nothing in it toward her. I watched her face to see if she might think I was crazy or something else.   43  _, she immediately turned and walked to the back of the store for the food I need. After that, I walked out into the street and headed back to the park where the old woman was.“Can I have the letter so I can be magic too?” I asked. Without replying to me,__44__     she told me the persons who wanted to help    45 _ in need would never need the magic letter any more. With these words, she stood up, kissed me on the forehead, removed the large scarf from my shoulders and disappeared into the darkness.

31. A. jumping       B. running         C. walking           D. hiking

32. A. himself       B. myself          C. themselves        D. yourselves

33. A. finding       B. having          C. laying            D. lying

34. A. before        B. beside          C. behind            D. after

35. A. nearly        B. almost          C. also              D. hardly

36. A. breathing     B. speaking        C. shaking           D. running

37. A. above         B. around          C. in                D. beside

38. A. Looking into B. Looking at      C. Looking after     D. Looking over

39. A. where         B. that            C. what              D. who

40. A. everything    B. something       C. nothing               D. anything

41. A. pulled out    B. pushed out      C. reached out           D. handed out

42. A. boy           B. policeman       C. man               D. woman

43. A. Amazingly     B. naturally       C. happily           D. luckily

44. A. so            B. instead         C. however           D. though

45. A. another       B. other           C. the other         D. others

   Global warming is a world problem and Monitoring (监制)it usually needs a lot of math knowledge. But Francisco and Ruby track(追踪) what climate change is doing to five different plants in Tucson, Arizona and they are only in the second grade.

  “We are collecting data because the weather is changing and the plants are blooming (开花),” Ruby explained.

   Many other students at Borton Primary Magnet School and Sunnyside High School in Tucson are going outdoors to be part of a new scientific action to figure out(计算)how the biological timing of the Earth is changing. It’s a research project that everyone, even a kindergartner, can join in.

  The National Phenology(生物气候学)Network is calling on volunteers to help track early spring blooms and changes in animals caused by global warming. It’s called Project Budburst. When it was first open to the public last year, thousands of people joined in .

   “Everyone can offer his hand by tracking the timing of flowering events or leaf-out events for plants and animals in their backyard,” said Phenology Network director Jake Weltzin.  

The idea is that tracking flowers blooming —— especially lilacs(丁香)which ordinary people have helped track for many years ——is simple. The Project Budburst website gives directions on what to look for in different parts of the country.

   University of Maryland professor David said it was so easy to figure out what’s blooming that a lack of special knowledge wasn’t a problem.

51. What would be the best title for the text?

A. Even Kids Can Help Monitor Global Warming.

B. People Pay More Attention to Global Warming.

C. Students Are Asked to Join Science Research Projects

D. Schools Call on Students to Take on Outdoor Activities.

52. What’s the purpose (目的)of Project Budburst?

A. To protect plants and animals from global warming.

B. To attract more students to science.

C. To remind people of the results of global warming.

D. To study the changing biological timing of the Earth.

53. People taking part in the project can get some information by _________.

A. calling network director Jake Weltzin          B. visiting the Project Budburst website

C. writing to the National Phenology Network      D. asking professors with phenology knowledge

54. If you join in Project Budburst, you should _____________.

A. get some special training first                B. do some careful observation(观察)outdoors

C. keep some plants or animals in your backyard   D. invite some other volunteers to work with you

55. The example of Francisco and Ruby is used to show that_________.

A. it is quite natural to do scientific research     

B. more kids are hoping to be scientists in the future

C. primary schools are focusing on science education

D. the new project is very simple and even kids can join in it

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