I had a friend who visited me from out of town and I wanted to show him the CN Tower. It was one of the tallest structures on the earth. So I thought it would offer a(n) __21__ sight.
We were standing in line for 45 minutes to enjoy the __22__ up to the watch point. When we got there, we went around the __23__ of the tower and saw the hard wire fence __24__ to the structure serving as a barrier. We went back inside to look for the glass floor that provided a direct view __25__. As soon as both of us __26__， we stopped before walking onto it. We found that our legs began to __27__. I stopped for a minute considering the step, taking several seconds to __28__ the edge before moving.
And then I had a thought in my mind：“It is far __29__ compared to any other floor in this building. There is no real danger to me — it's __30__ an illusion (错觉). Look at all the people standing on it, and think about those who have stood on it before.”I began to __31__ that step onto the glass floor. I didn't look down — __32__ not for a few minutes.
I walked on the __33__ and looked around and thought about how__34__ the experience was. I even found myself jumping up and down. There was no __35__， and it was certainly an illusion.
I considered how many things in our lives we __36__ and exactly how many of them are actually illusions. I thought about all the things we __37__ ourselves from doing because we have __38__ ourselves into thinking there's risk. I thought about all the things that I still have yet to do that appeared __39__. I was glad to discover that although fear isn't a stranger to me, my desire to live a life without __40__ has a much stronger pull.
21．A. expressive B. impressive
C. frightening D. beneficial
22．A. bus B. ladder
C. car D. elevator
23．A. outside B. top
C. centre D. surface
24．A. connected B. surrounded
C. referred D. combined
25．A. around B. up
C. down D. out
26．A. understood B. approached
C. talked D. returned
27．A. wave B. move
C. tremble D. wander
28．A. look over B. think over
C. look up D. think up
29．A. tighter B. taller
C. weaker D. stronger
30．A. happily B. simply
C. greatly D. relatively
31．A. take B. choose
C. decide D. pick
32．A. at most B. at least
C. at last D. at best
33．A. fence B. floor
C. edge D. tower
34．A. grateful B. useful
C. wonderful D. helpful
35．A. death B. warn
C. trouble D. danger
36．A. handle B. ignore
C. fear D. hide
37．A. block B. protect
C. help D. separate
38．A. forced B. advised
C. entered D. led
39．A. amazing B. worrying
C. exciting D. interesting
40．A. cost B. doubt
C. regret D. waste