She often comes to school _______ her bike.

A．on               B．in                C．with              D．by

 

A group of graduates got together to visit their old university professor（教授）．They talked about their troubles in work and life．After the professor had offered his（A）guests a drink he went into the kitchen and returned with a（B）big pot（壶）of coffee and some cups--porcelain（瓷的），plastic，glass，crystal（水晶的），some plain-looking（普通的），some beautiful，some expensive．The professor let them（C）随便喝些咖啡．

When all his students had a cup in hand，he said：“I don’t know if you noticed it，but when all the nice-looking expensive cups were taken up，the plain and cheap ones were（D）_________ behind．While it is normal（非常的）for you to want only the best for yourselves，that is the source（根源）of your problems and stress（压力）．”

“（E）You really wanted coffee instead of the cup，but you went for the best cups and were eyeing each other's cups to see if they were better．”

Just think about this：Life is the coffee，and jobs，money and titles are the cups．（F）They are only tools to hold and contain Life，and do not change the quality（质量）of Life．Sometimes，by concentrating（集中）only on the cup，we（G）_______ to enjoy the coffee．So don't let the cups drive you，enjoy the coffee instead．

1．分别写出（A）和（B）处的同义或近义词_________ _________

2．将（C）处译成英语_____________________________________________

3．在（D）和（G）处分别填上适当的单词_________ _________

4．将（E）处句子进行改写What you really wanted was _________ the cup，_________ coffee．

5．指出（F）处在文中所指代的内容_________

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.

My sister goes to the concert  ________ car every Sunday.

A．on               B．in                C．with              D．by