题目内容
Aaron LeMieux loves to hike and often listens to the radio at the same time. While on a 1,500-mile hike 【小题1】 _______ the Appalachian Trail, Aaron started thinking about energy. Could the energy his body was creating be used to charge an electronic device? In 2006 Aaron quit his job 【小题2】 ________ turned the basement of his home into a laboratory. He then put all his time 【小题3】________ developing the nPower PEG.
PEG means personal energy generator(发电机). 【小题4】________ uses the energy you create while moving to charge a hand-held device. Just put your nPower PEG in your bag, 【小题5】________ fasten it to your leg or bicycle. Then plug your MP3 player, cell phone or digital camera into your nPower PEG’s USA port. LeMieux’s company, Tremont Electric, claims 【小题6】 ________ nPower PEG can charge most hand-held electronic devices to 80 percent in one hour.
Since it costs US$149, the nPower PEG won’t appeal to everyone with its price so 【小题7】 ________. But for those 【小题8】________ spend a lot of time with electronic devices powered by batteries, it might come in handy.
【小题1】along
【小题2】and
【小题3】into
【小题4】It
【小题5】or
【小题6】the
【小题7】high
【小题8】that/who
解析
When my oldest son was in high school, he planned to attend a Christian contemporary concert with the youth group from our church. To my 36 , Aaron invited me to go along. I 37 accepted; however, by the time the date of the concert arrived, my youngest son had been ill, and I was 38 about him. My husband 39 me to attend the concert, promising he would take care of our youngest. I hesitated.
Finally, it 40 me. Aaron was sixteen years old. How many 41 would I have to do something fun with him 42 he went away to college? And how many youth actually 43 their mothers to attend a concert with them that was clearly for teens? The 44 was made. I would not miss this opportunity.
At the concert, I sat with Aaron in the third row, stuffing (填塞) cotton in my ears to block out the 45 , ear-splitting music of the first performer. I stood when the kids stood, clapped when they clapped, and never let anyone know how 46 I was to feel the floor vibrate (震动) beneath my feet. Aaron and his friends were 47 at my enthusiasm.
By the time we left the concert, my ears were ringing, but it quickly passed. 48 did my son’s teenage years. 49 he was in college and away from home. I missed him more than I could say. On days when I was especially 50 for his ready smile and his teasing manner, I would think back to the concert we attended and be thankful once again that I didn’t 51 an opportunity to spend time with my son.
Aaron is now grown and has a family of his own, but we are still very __52 __ . Some days he calls just to __53__ and tell me about his day. I drop everything and 54 the moment, knowing these times too shall 55 .
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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 Wilkins. 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 photos 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 scholars doubt that Franklin was not only robbed of her life by disease but robbed of credit by her competitors
At Cambridge University in the 1950s, Watson and Click 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 reflection 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 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 “Franklin 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.
【小题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.
【小题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 |
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.
【小题4】What is the writer’s attitude toward Wilkins, Watson and Crick?
A.Disapproving. | B.Respectful. | C. Admiring. | D.Doubtful. |