According to the World Bank, one of its chief supporters, economic globalization has helped reduce
Those who
Critics take a different view, believing that economic globalization is actually
One thing is certain about globalization—there is no
A.possible | B.smooth | C.good | D.easy |
A.crime | B.poverty | C.conflict | D.population |
A.contributing | B.responding | C.turning | D.owing |
A.remain | B.drop | C.shift | D.increase |
A.doubt | B.define | C.advocate | D.ignore |
A.In addition | B.For instance | C.In other words | D.All in all |
A.mature | B.new | C.local | D.foreign |
A.finding | B.exploring | C.bridging | D.widening |
A.suffered | B.profited | C.learned | D.withdrawn |
A.Furthermore | B.Therefore | C.However | D.Otherwise |
A.consume | B.deliver | C.export | D.advertise |
A.trouble | B.business | C.power | D.mind |
A.keep up | B.come in | C.go around | D.help out |
A.taking off | B.getting along | C.holding out | D.turning back |
A.agreement | B.prediction | C.outcome | D.challenge |
“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.”
1. 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 not assemble the components |
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 |
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. |
A.Father of Robotic Fly |
B.Inspiration from Engineering Science |
C.Robotic Fly Imitates Real Life Insect |
D.Harvard Breaks Through in Insect Study |
3 . Zoe Chambers was a successful PR (Public Relations) consultant (顾问) and life was going well—she had a great job, a beautiful flat and a busy social life in London. Then one evening in June last year, she received a text message telling her she was out of work. The first two weeks were the most difficult to live through.” she said. “After everything I’d done for the company, they dismissed me by text!I was So angry and I just didn’t feel like looking for another job. I hated everything about the city and my life.”
Then, Zoe received an invitation from an old school friend, Kathy, to come and stay. Kathy and her husband, Huw, had just bought a farm in north-west Wales. Zoe jumped at the chance to spend a weekend away from London, and now, ten months later, she is still on the farm.
“The moment I arrived at Kathy’s farm, I loved it and I knew I wanted to stay.” said Zoe. “ Everything about
my past life suddenly seemed meaningless.”
Zoe has been working on the farm since October of last year and says she has no regrets. “It’s a hard life, physically very tiring. ” she says. “In London I was stressed and often mentally exhausted. But this is a good, healthy tiredness. Here, all I need to put me in a good mood is a hot bath and one of Kathy’s wonderful dinners. ”
Zoe says she has never felt bored on the farm. Every day brings a new experience. Kathy has been teaching her how to ride a horse and she has learnt to drive a tractor. Since Christmas, she has been helping with the lambing-—watching a lamb being born is unbelievable, she says, “It’s one of the most moving experiences I’ve ever had. I could never go back to city life now. ”
1. When working as a PR consultant in London, Zoe thought she lived a life.A.satisfying |
B.tough |
C.meaningless |
D.boring |
A.Zoe lost her job as a PR consultant |
B.Kathy persuaded her to do so |
C.Zoe got tired of the city life |
D.Zoe loved Wales mare than London |
A.Tiresome and troublesome. |
B.Romantic and peaceful |
C.Mentally exhausting but healthy |
D.Physically tiring but rewarding. |
A.A friend in need is a friend indeed. |
B.Where there is a will, there is a way. |
C.A misfortune may turn out a blessing. |
D.Kill two birds with one stone. |
4 . “Get your hands off me; I have been stolen,” the laptop, a portable computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it has been taken.
The program allows users to display alerts on the missing computer’s screen and even to set a spoken message. Tracking software for stolen laptops has been on the market for some time, but this is thought to be the first that allows owners to give the thief a piece of their mind.
Owners must report their laptop missing by logging on to a website, which sends a message to the model: a red and yellow “lost or stolen” banner pops up on its screen when it is started. Under the latest version of the software, users can also send a spoken message.
The message can be set to reappear every 30 seconds, no matter how many times the thief closes it. “One customer sent a message saying, ‘You are being tracked. I am right at your door’, said Carrie Hafeman, chief executive of the company which produces the program, Retriever.
In the latest version, people can add a spoken message. For example, the laptop’s speaker will say: “Help, this laptop is reported lost or stolen. If you are not my owner, please report me now.”
The Retriever software package, which costs $29.95 but has a free trial period, has the functions of many security software programs. Owners can remotely switch to an alternative password if they fear that the thief has also got hold of the access details.
If a thief accesses the Internet with the stolen laptop, Retriever will collect information on the Internet service provider in use, so that the police can be alerted to its location.
Thousands of laptops are stolen every year from homes and offices, but with the use of laptops increasing, the number stolen while their owners are out and about has been rising sharply.
Other security software allows users to erase data remotely or lock down the computer.
1. The expression “to give the thief a piece of mind” can be understood as“ ”.A.to give the thief an alert mind |
B.to express owners’ anger to the thief |
C.to remind the thief of his conscience |
D.to make the thief give up his mind |
A.record the stealing process |
B.help recognize the lost laptop |
C.lock down the computer remotely |
D.send a spoken message |
A.change some access details for switching on the laptop |
B.turn on the laptop by using the original password |
C.operate the laptop by means of an alternative password |
D.erase the information kept in the stolen laptop |
A.With no Retriever, thousands of laptops are stolen every year. |
B.A new software provides a means to reduce laptop theft. |
C.Retriever has helped to find thieves and lost computers. |
D.A new program offers a communication platform with the thief. |