阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。

I went  to a group activity，“Sensitivity Sunday”，which was to make us more  __36__    the problems faced by disabled people. We were asked to “  __37__  a disability” for several hours one Sunday. Some members,  __38__，  chose to use wheelchairs. Others wore sound－blocking earplugs(耳塞)or blindfolds(眼罩)．

 Just sitting in the wheelchair was a   __39__  experience. I had never considered before how   __40__  it would be to use one. As soon as I sat down, my   __41__  made the chair begin to roll. Its wheels were not   __42__.   Then I wondered where to put my  __43__．It took me quite a while to get the metal footrest into  __44__. I took my first uneasy look at what was to be my only means of  __45__   for several hours. For disabled people，“adopting a wheelchair” is not a temporary(临时的)  __46__. 

 I tried to find a  __47__  position and thought it might be restful,  __48__  kind of nice, to be  __49__  around for a while. Looking around，I  __50__   I would have to handle the thing myself！My hands started to ache as I  __51__  the heavy metal wheels. I came to know that controlling the  __52__  of the wheelchair was not going to be a(n)  __53__  task.

 My wheelchair experiment was soon  __54__.  It made a deep impression on me. A few hours of “disability” gave me only a taste of the  __55__，both physical and mental，that disabled people must overcome.

36．A. curious about  B. interested in 

C. aware of  D. careful with 

37．A. cure  B．prevent        

C．adopt  D．analyze 

38．A. instead  B．strangely      

C．as usual  D．like me

39．A. learning  B．working        

C．satisfying  D．relaxing

40．A. convenient  B．awkward        

C．boring  D．exciting

41．A. height  B．force          

C．skill  D．weight

42．A. locked  B．repaired       

C．powered  D．grasped

43．A. hands  B．feet           

C．keys  D．handles

44．A. place  B．action         

C．play  D．effect

45．A. operation  B．communication 

C．transportation  D．production

46．A. exploration  B．education       

C．experiment  D．entertainment

47．A. flexible  B. safe           

C. starting  D. comfortable

48．A. yet  B. just            

C. still  D. even

49．A. shown  B. pushed        

C. driven  D. guided

50．A. realized  B. suggested      

C. agreed  D. admitted

51．A. lifted  B. turned        

C. pressed  D. seized

52．A. path  B. position        

C. direction  D. way

53．A. easy  B. heavy          

C. major  D. extra

54．A. forgotten  B. repeated        

C. conducted  D. finished

55．A. weaknesses  B. challenges       

C. anxieties  D. illnesses

If you are lost in the mountains, stay calm in the face of darkness, loneliness, and the unknown. It will greatly increase your chances of survival. Many people think that   preparing necessary equipment and knowing how to use it are very important, but in fact eighty percent of mountain survival is your reaction(反应) to fear.

Finding a hiding place

Unnecessary labor (劳动) will make you sweat and make you cold. Find a hiding place around you before trying to start your own construction. If you are in a snow-covered area, you may be able to dig a cave in deep snow for protection from the wind. You should try to hide yourself in the middle of the mountain if possible. Stay out of the valleys--- cold air falls, and the valley floor can be the coldest area on the mountain.

Signal(发信号) rescuers for help

The best time to signal rescuers is during the day. Signal for help from the highest point possible--- it will be easier for rescuers to see you, and any sound you make will travel farther. If you take a box of matches and a space blanket ( a special blanket for traveling ), build three smoky fires and put your blanket ---gold side facing out --- on the ground.

Do not walk away

It will make finding you more difficult , as search teams will be trying to follow your path and may miss you if you have gone off in a different direction. Searchers often end up finding a car with no one in it. If you get frostbitten(冻伤) , do not rewarm the affected area until you are out of danger.

You can walk on frostbitten(冻伤) feet, but once you warm the area and can feel the pain, you will not want to walk anywhere. Try to protect the frostbitten area and keep it dry until you are rescued.

1. When lost in the mountains, you can increase your chances of survival if you _____.

2. According to the passage, people most probably fail to survive if they ______

3.What can we infer from the passage?

4. Which statement is not true according to the passage?

   I had never seen sand dunes（沙丘）before. If you go to the seaside in Britain, you may see some small hills of sand, but nothing very impressive. Of course, Africa is home to many beautiful “sandscapes”, but I was in China, so I went to Dunhuang.
I had spent my first day looking at the beautiful Mogao caves. Now I wanted to experience something very different.
I have been walking in Asia, Europe and America, but nothing prepared me for walking over hills of sand. Whenever I took a step up a hill, my feet would sink into the sand and move backwards. Sometimes it seemed as if I were moving in the wrong direction.
I wanted to see the sunset so I had to climb to the top of the highest sand dune. The sun was beating down upon my back as I walked slowly over the sand. Some plants had managed to survive in the dry ground but not many.
As I climbed higher, the hills of sand became steeper and my feet started to slip further backwards. I ended up with my hands and knees, crawling (爬行)upwards through the top. I just let go if I would fall the way down. But I refused to give up: inch by inch, I made my way to the top of the sand dune.
When I got there I was amazed by what I saw. The sand formed a very sharp point, just like a knife-edge. One side of the dune was bathed in sunshine, the other covered by shade. As I looked into the distance, the same pattern was repeated on all of the hilltops, and the difference between dark and light was beautiful.
As the sun began to sink, the shadows grew longer and the light became warm and orange. The wind had come to life and sand was blown against my legs as I walked along the dunes. Soon it was getting dark and I could only just make out the line of footprints that marked my journey to the top of the hill. I slowly made my way down to the bottom, my path lit by the dying sun.
65 The author probably went to climb the sand dunes __________ after he arrived at Dunhuang.
A. on the afternoon of the first day       B. on the afternoon of the second day
C. on the evening of the second day     D. on the evening of the first day
66. Which of the following statements is NOT true?
A. Africa has many beautiful sand dunes.
B. The author could see nothing but his own footprints on his way back.
C. The author had seen some kinds of sand dunes before he visited Dunhuang
D. What attracted the author most was that the sand formed a very sharp point.
67. The author got to the top of the highest hill of sand _____________.
A. on his hands and knees all the way
B. with falls to the bottom many times
C. on his hands and knees in the last leg (一段旅程)
D. with a few rests all the way                
68. The author mainly wants to tell readers about_____________.
A. the beautiful sunset         B. his experience of climbing the sand hills
C. the joy of traveling in nature  D. the difficulty of climbing the sand dunes

   I had never seen sand dunes（沙丘）before. If you go to the seaside in Britain, you may see some small hills of sand, but nothing very impressive. Of course, Africa is home to many beautiful “sandscapes”, but I was in China, so I went to Dunhuang.

I had spent my first day looking at the beautiful Mogao caves. Now I wanted to experience something very different.

I have been walking in Asia, Europe and America, but nothing prepared me for walking over hills of sand. Whenever I took a step up a hill, my feet would sink into the sand and move backwards. Sometimes it seemed as if I were moving in the wrong direction.

I wanted to see the sunset so I had to climb to the top of the highest sand dune. The sun was beating down upon my back as I walked slowly over the sand. Some plants had managed to survive in the dry ground but not many.

As I climbed higher, the hills of sand became steeper and my feet started to slip further backwards. I ended up with my hands and knees, crawling (爬行)upwards through the top. I just let go if I would fall the way down. But I refused to give up: inch by inch, I made my way to the top of the sand dune.

When I got there I was amazed by what I saw. The sand formed a very sharp point, just like a knife-edge. One side of the dune was bathed in sunshine, the other covered by shade. As I looked into the distance, the same pattern was repeated on all of the hilltops, and the difference between dark and light was beautiful.

As the sun began to sink, the shadows grew longer and the light became warm and orange. The wind had come to life and sand was blown against my legs as I walked along the dunes. Soon it was getting dark and I could only just make out the line of footprints that marked my journey to the top of the hill. I slowly made my way down to the bottom, my path lit by the dying sun.

65 The author probably went to climb the sand dunes __________ after he arrived at Dunhuang.

A. on the afternoon of the first day       B. on the afternoon of the second day

C. on the evening of the second day     D. on the evening of the first day

66. Which of the following statements is NOT true?

A. Africa has many beautiful sand dunes.

B. The author could see nothing but his own footprints on his way back.

C. The author had seen some kinds of sand dunes before he visited Dunhuang

D. What attracted the author most was that the sand formed a very sharp point.

67. The author got to the top of the highest hill of sand _____________.

A. on his hands and knees all the way

B. with falls to the bottom many times

C. on his hands and knees in the last leg (一段旅程)

D. with a few rests all the way                

68. The author mainly wants to tell readers about_____________.

A. the beautiful sunset         B. his experience of climbing the sand hills

C. the joy of traveling in nature  D. the difficulty of climbing the sand dunes