A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components(元件), ”said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.

They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.

While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.

Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day-to-day basis.”

72. The difficulty the team of engineers met with while making the robotic fly was that ________.

A. they had no model in their mind

B. they did not have sufficient time

C. they had no ready-made components

D. they could no assemble the components

73. It can be inferred from paragraphs 3 and 4 that the robotic fly_________.

A. consists of a flight device and a control system

B. can just fly in limited areas at the present time

C. can collect information from many sources

D. has been put into wide application

74. Which of the following can be learned from the passage?

A. The robotic flyer is designed to learn about insects.

B. Animals are not allowed in biological experiments.

C. There used to be few ways to study how insects fly.

D. Wood’s design can replace animals in some experiments.

75. Which of the following might be the best title of the passage?

A. Father of Robotic Fly

B. Inspiration from Engineering Science

C. Robotic Fly Imitates Real Life Insect

D. Harvard Breaks Through in Insect Study

A few months ago I was at a bus stop in town in the evening. The bus came on time and I took the window seat. The bus was travelling by the seashore and I was enjoying the soft wind while watching the sea waves (海浪). After a few minutes the bus made its next stop. A young boy and a girl got on. They were standing on my left when the bus pulled off. I looked at them in surprise and realized that all the window seats were taken up. They could sit but not together. Suddenly a different wave passed through my body and my inner mind gave me the advice to get up. I got up and offered them my seat. The young lady smiled kindly and said thanks. I took another seat and we parted our ways. I don’t remember whether I got off the bus before them or not.
Months passed by. Suddenly one day while I was standing at the same bus stop waiting some time for the bus to arrive I heard a voice.
“Excuse me, Uncle.” I looked in the direction of the voice. It was a beautiful young lady.
Puzzled, I said, “I do not recognize you.”
She said, “Do you remember you gave us your window seat?”
Puzzled, I said, “Maybe, but what is so great in that?”
She said, “If you had not given your seat that day, perhaps I would have not sat with my friend. By sitting together it helped us bridge a misunderstanding that had been between us forever. Do you know we are getting married next month?”
“Good! God bless both of you,” I replied.
The young lady again said thank you and went on her journey. I realized the importance of giving that day.
【小题1】Why were the young boy and the girl standing on the bus?

B
Canadian scientists have found that the more emotional or mental challenges a person faces in a day, the less determined they become to work out physically.
However, the findings should not stop us from keeping fit. Experts believe that willpower (意志力)is like a muscle ， and needs to be exercised to help one avoid the temptation (诱惑)spending a night on the couch instead.
Kathleen Martin 一 Ginis, a professor of kinesiology 一 the science of movement 一 who led the study, says everyone has a limited amount of willpower, and that it will be reduced by stress. Miss Martin 一 Ginis, of Canada' s McMaster University, explains, "Cognitive (认知的)tasks, as well as tasks such as regulating (调整)one' s emotions, can reduce one' s capacity to force oneself to exercise."
Her team of scientists performed a so — called " Stroop" test on volunteers to reach their conclusions. The experiment involved showing participants words associated with colors but printed in different colors - for example ， the word " blue " written in red ink . ' Participants were divided into two groups. One group was asked to name the color of the ink ， instead to say the printed word ， while the other wasn't Martin ― Ginis says ， " After we used this cognitive task to use up their self 一 regulatory capacity, the participants didn't exercise as hard as those who had not performed the task. ，， The more people concentrated on the cognitive task ， the more likely they were to skip exer­cise sessions (活动时间)over the next eight week. You only have so much willpower .
However, there are ways to strengthen willpower. The study found the listening to music before going to the gym can help, as well as making a commitment to work out with friends. It also concluded that willpower can be stretched by constantly cake ， or forcing oneself to study an extra hour each night.
Martin - Ginis adds, "There are strategies people can use to help revitalize (使恢复活动) themselves after they’ve used up their self 一 regulation. Willpower is like a muscle ： it needs to be used to stay strong.
61.According to the experts, human willpower    .
A.can be exercised through muscle movement
B.can regulate itself to resist temptations
C.is weakened by stressful cognitive or emotional tasks
D.is reduced by lack of physical exercise.
62.We learn from Paragraph 4 that the experiment      .
A.made use of the Stroop test
B.asked one group of participants to name the words
C.required researchers to write the word "blue" in red ink to make it easily recognizable.
D.showed that those who hadn't performed the task were smarter than those who had
63.All the following are ways to strengthen one's willpower EXCEPT________
A.listening to music before doing exercise
B.promising to work out with friends
C.training oneself repeatedly to resist temptations
D.forcing oneself to do the same thing each day
64.Which of the following is in agreement with Miss Martin ― Ginis' idea?
A.Human's willpower is limited to a certain level
B.The cognitive tasks could make people ignore exercise
C.Challenging tasks could make people ignore exercise
D.Exercise is an important way to strengthen one's willpower.
65.What can we infer from the passage?
A.Willpower can be challenged to become powerful.
B.McMaster University is famous for its kinesiology.
C.Effective ways to resist temptations have been found.
D.the study has an impact on the science of movement.

A father with Parkinson’s disease was arrested as he watched the Olympic cycling road race because he failed to smile or look as if he was enjoying himself.
Mark Worsfold, a martial arts trainer and former soldier, claims that he was thrown to the floor and handcuffed just as cyclists passed by. His worried wife Nicola only found out he was being held after she reported him missing when he did not turn up for their daughter’s ninth birthday party. The 54-year-old man had his fingerprints, DNA and mugshot taken before being questioned about why he did not appear to be enjoying the event on July 28. Police said Mr. Worsfold, who was held for over five hours, was arrested because of his manner, his state of dress and his being too near to the course. A spokesman added that the arrest was necessary to avoid a breach (破坏) of the peace because he was standing near a group of protesters (抗议者).
But Mr. Worsfold, who was diagnosed with Parkinson’s disease in 2010, said that one of the symptoms of the disease is muscle rigidity, which can cause his face to become expressionless. “I was sitting minding my own business”, he told a local newspaper. “Before I knew anything the police grabbed me off this seven-foot wall, threw me to the floor and handcuffed me, so all I saw of the cycle race was between the feet of people from the pavement. It could have been done better. I was arrested for not smiling. I have Parkinson’s disease. ”
Mr. Worsfold has since asked for a letter of not being guilty from police. The officers who made the arrest have apologized to him.
【小题1】 Which word can be used to replace the underlined word “mugshot” in the second paragraph?

A fried of mine named Paul received an automobile from his brother as a Christmas present. On Christmas Eve when Paul came out of his office, a naughty street boy was walking around the shiny new car, admiring it. “Is this your car, Mister?” he asked..
Paul nodded, “My brother gave it to me for Christmas.” The boy was surprised. “You mean your brother gave it to you and it didn’t cost you anything? I wish…” He hesitated（犹豫）.
Of course Paul knew what he was going to wish for. He was going to wish he had a brother like that. But what the boy said made Paul think all the way.
“I wish ,” the boy went on, “that I could be a brother like that.”
Paul looked at the boy in surprise, adding, “Would you like to take a ride in my automobile?”
“Yes, I’d love that.” After a short ride, the boy turned and said, “Mister, would you mind driving in front of my house?”
Paul smiled, He thought he knew what the boy wanted. But Paul was wrong again. “Will you stop where those two steps are?” the boy asked.
He ran up the steps. Then in a while Paul heard him coming back, but he didn’t come fast. He was carrying his little crippled（伤残） brother. He pointed to the car and said, “There it is, Buddy, just like I told you up stairs. His brother gave it to him for Christmas. And some day I’m going to give one just like it and then you can see for yourself all the pretty things in the Christmas windows that I’ve been trying tell you about. ”
Paul got out and lifted the boy to the front seat. The shining-eyed older brother climbed in beside him and the three of them began a memorable holiday ride.
That Christmas Eve, Paul learned what “It is more blessed to give” means.
【小题1】The naughty street boy wished to _____________ .