On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could read the whole “map” of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own.

People have been trying to understand the human body for a long time. In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named “genes” in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language.

In 1961, Marshall Nirenberg and Johann Matthaci found a message in DNA showing how DNA tells the cell（细胞）to build its parts. Scientists have now found all the words in the DNA map, but we still do not understand what they all do. By understanding what just one “word”   means, we can help save more people from several illnesses.

Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technic wasn’t limited（限制）in use.

(  ) 51. When did we first know why we look like other people m our family?

A. In 1860．      B. In 1953．       C. In 1961．      D. In 2000．

(  ) 52. What does the underlined word “ genes” mean?

A. The “map” of DNA.                B. A special language.

C. Small parts of DNA.                D. DNA.  ,,

(  )53. What did the two scientists first discover in 1961 ?

A. The “map” of DNA.                B. A new illness.        

C. The language of DNA.              D. A message of DNA.

(  ) 54. What can we do if we understand some “ words” of the language inside the body

A. Make people get new jobs.           B. Make medicine for illnesses.

C. Make maps of human.               D. Make people less attractive.

(  ) 55. What do people think about this work’?

A. It can cause good or bad results.               B. It can cause only good results.

C. It can cause good results but won’t work.        D. It can cause only bad results.

One of sweetest memories as a child is of going down to the river and sitting comfortably on the bank. There I would enjoy the peace and quiet, watch the water rush downstream and listen to songs of birds. I would also watch the bamboo trees bend under the pressure from the wind and watch them return gracefully to their original state after the wind had died down.
When I think about the bamboo tree’s ability to bend and move back, the word “resilience” comes to my mind. When it is used for a person, this word means the ability to readily recover(恢复) from shock, sadness or any other suffering. Have you ever felt like you were going to snap? Have you ever felt like you were at your breaking point? Thankfully, you have survived to talk about it.
Life is a mixture(混合) of good times and bad times, happy moments and unhappy moments. The next time you are experiencing one of those bad times or unhappy moments that take you close to your breaking point, bend, but don’t break. Try your best not to let the situation get the best of you.
An amount of hope will take you through the unpleasant suffering. With hope for a better tomorrow or a better situation, things may not be as bad as they seem. The unpleasant suffering may be easier to deal with if the end result is worth having.
If things get tough and you are at your breaking point, show resilience. Like the bamboo trees, bend, but don’t break!
【小题1】What does the word “snap” in the second paragraph most probably mean?

One day a man found a cocoon(茧) of a butterfly in the forest. He sat there for several hours and watched the butterfly. Suddenly a small opening appeared, and the butterfly made its great effort to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no further.

So the man decided to help the butterfly. He cut off the remaining bit of the cocoon so that the butterfly could come out easily. But to his surprise, the butterfly got a heavy body and very small wings when it came out of the cocoon.

The man continued to watch the butterfly because he expected that the body would grow smaller at any moment and the wings would become larger and be able to fly. But neither happened! In fact, the butterfly spent the rest of its life crawling (爬) around with a heavy body and small wings. It was never able to fly.

The man was in his kindness, but he did not understand the nature rules. Before the butterfly came out of the cocoon, fluid(流体) from its body must be forced into its wings, and then it would be ready for flying. It must have a hard struggle (拼搏) to get through the small opening to get its freedom from the cocoon.

Sometimes struggles are exactly what we need in our life. If God allowed us to go through our life without any difficulties, it would make us fail. We would not be as strong as we could have been; we could never fly.

(  )46. What was the butterfly doing at the beginning of the story ?

A. It was trying to make a cocoon for itself.

B. It was struggling to get out of its cocoon.

C. It was flying among the trees in the forest. 

D. It was crawling around quietly on the ground.

(  )47. The man cut off the remaining bit of the cocoon

A. to take the butterfly home        B. to help the butterfly come out easily

C. to kill the butterfly              D. to stop the butterfly growing bigger 

(  )48 What do you think of the man?

A. Patient but cruel.            B. Careful and wise.

C. Kind but unwise.            D. Brave and funny.

(  )49. What does the last paragraph（段落） tell us?

A. Struggles are sometimes necessary in our life.

B. Nothing is difficult if we put our heart into it.

C. Every good deed will come back with good result.

D. The greatest happiness in the world is to help others．

(  )50. What is the best title for the story?

A. The Love for the Cocoon.          B. The Joy of Helping Each Other.

C. The Lesson of the Cocoon.         D. The Expectation for the Butterfly.