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Four people in England, back in 1953, stared at photo 51. it wasn’t much –a picture showing a black X. But three of these people won the Nobel prize for figuring out what the photo really showed—the shape of DNA. The discovery brought fame and fortune to scientists James Watson, Francis crick, and Maurice Willkins. The fourth, the one who actually made the picture, was left out.

Her name was Rosalind Franklin. “She should have been up there,” says historian Mary Bowden. ”if her photo hadn’t been there, the others couldn’t have come up with the structure.” one reason Franklin was missing was that she had died of cancer four years before the Nobel decision. But now scholar doubt that Franklin was not only robbed of her life by disease but robbed of credit by her competitions.

At Cambridge University in the 1950s, Watson and Crick tried to make models by cutting up shapes of DNA’s parts and then putting them together. In the meantime, at king’s college in London, Franklin and Wilkins shone X-rays at the molecule(分子). The rays produced patterns reflecting the shape.

But Wilkins and Franklin’s relationship was a lot rockier than the celebrated teamwork of Watson and Crick. Wilkins thought Franklin was hired to be his assistant. But the college actually employed her to take over the DNA. project.

What she did was produce X-ray pictures that told Watson and Crick that one of their early models was inside out. And she was not shy about saying so. That angered Watson, who attacked her in return,” Mere inspection suggested that she would not easily bend. Clearly she had to go or be put in her place.

As Franklin’s competitors, Wilkins, Watson and Crick had much to gain by cutting her out of the little group of researchers, says historian Pnina Abir-Am. In 1962 at the Nobel prize awarding ceremony, Wilkins thanked 13 colleagues by name before he mentioned Franklin. Watson wrote his book laughing at her. Crick wrote in 1974 that “Franklins was only two steps away from the solution.”

No, Franklin was the solution.” She contributed more than any other player to solving the structure of DNA. She must be considered a co-discoverer,” Abir-Am says. This was backed up by Aaron Klug, who worked with Franklin and later won a Nobel Prize himself. Once described as the “Dark Lady of DNA”, Franklin is finally coming into the light.

1.What is the text mainly about?

A. The disagreements among DNA. researchers.

B. The unfair treatment of Franklin.

C. The process of discovering DNA.

D. The race between two teams of scientists.

2.Watson was angry with Franklin because she ______.

A. took the lead in the competition

B. Kept her results from him

C. proved some of his findings wrong

D. shared her data with other scientists

3.Why is Franklin described as “Dark Lady of DNA”?

A. She developed pictures in dark labs.

B. She discovered the black X------ the shape of DNA.

C. Her name was forgotten after her death.

D. Her contribution was unknown to the public.

4.What is the writer’s attitude toward Wilkins, Watson and Crick?

A. Disapproving

B. Respectful.

C. Admiring

D. Doubtful

 

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 1.   One of the best things you possibly do is start your own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.

The first thing you  need to come up with is an idea for your club.  2.___ Pets, clothes,  pop music or dancing groups, sports, masking things… The lost is endless.

Next you need some friends to be in your club with you.3.  __ All you need is three or four other people who are interested in the same thing as you.

 4.  __ You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.

At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

Now you have just about everything you need, except membership cards. These are very important and again you can spend a lot of time making them. 5.  . Why not leave some space for a photo of yourself? That will make the membership card really look like it.

So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!

A.That’s easy.

B.Enjoy your own club!

C.Invite a designer to join you.

D.What are you interested in?

E. Some vacation is just around the corner.

F. Then you need to pick a name for your club.

G. Use a bright thick pen to make a special design.

 

 

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 My wife and I had just finished the 150-mile trip home from our daughter’s college. It was the first time in our life that we would __36__ for any length of time. We wondered how other people had __37__ it.

Later in bed, I __38__ the time I started college. My father had driven me, too. My mother had to stay home to keep the __39__ from getting into the crops. I, the fourth in a line of brothers, was the first to __40__ college.

The truck was slow, and I was glad. I didn’t want to get to the city __41__. I shook hands with my father in the truck and he didn’t say a word. But I knew he was going to make a little __42__. He finally said, “I never went to college and __43__ of your brothers did. I can’t say don’t do this or that, because everything is __44__ and I don’t know what is going to come up, but I think things will __45__. When you get a job, be sure to be honest and work hard.” I knew that soon I would be __46__ in the big town and I would be __47__ the life home.

Then my father __48__ the Bible that he had read so often. I knew that he would miss it but I must __49__ it. He just said, “This can help you __50__ you will let it.”

When I finished school I took the Bible __51__ to my father. But he said he wanted me to __52__ it.

Now, too often, I remember. It would have been so __53__ to give it to my daughter when she got out of the car. But I didn’t. My father could give me only a Bible, but now I don’t really believe that I gave her half as __54__ as my father gave me. So the next morning I __55__ up the book and sent it to her. I wrote a note “This can help you.” I said, “if you will let it.”

1. A. worry         B. separate         C. stay             D. travel

2. A. left              B. stood                C. enjoyed          D. tried

3. A. wasted            B. spent                C. remembered       D. killed

4. A. policemen     B. workers          C. cattle               D. birds

5. A. graduate from B. go away to           C. set out              D. set up

6. A. very late     B. far away         C. too soon         D. once again

7. A. speech            B. living               C. promise          D. progress

8. A. some          B. one              C. none             D. all

9.A. impossible     B. different            C. difficult            D. favorite

10. A. work out     B. die out              C. hold out         D. break out

11. A. happy            B. alone                C. free             D. lost

12. A. losing           B. spending         C. missing          D. living

13. A. brought about    B. brought out          C. brought up           D. brought down

14. A. refuse           B. mark             C. follow               D. take

15. A. if               B. unless               C. but              D. though

16. A. down         B. up               C. back             D. away

17. A. keep         B. return               C. post             D. sell

18. A. popular          B. strange          C. ready                D. nice

19. A. much         B. many             C. far              D. good

20. A. set              B. turned               C. gave             D. wrapped

 

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_1_ One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.

    The first thing you need to come up with is an idea for your club. _2_ Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.

    Next you need some friends to be in your club with you. _3_ All you need is three or four other people who are interested in the same thing as you.

    _4­­   You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.

    At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

    Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them.  5   Why not leave some space for a photo of yourself? That will make the membership card really look like it.

    So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!

A. That’s easy.                       

B. Enjoy your own club!           

C. Invite a designer to join you.            

D. What are you interest in?                       

E. Some vacation is just around the corner.

F. Then you need to p ick a name for your club.    

G. Use a bright thick pen to make a special design.

 

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