By applying the theory to the problem, we can brush away the details and simple patterns.A.release B.reject C.reveal D.replace 题目和参考答案——青夏教育精英家教网—

题目内容

By applying the theory to the problem, we can brush away the details and ______ simple patterns.

A.release B.reject C.reveal D.replace

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The doctor asked him___________ the amount of salt in his diet.

A. to reduce B. reduce C. reduced D. reducing

信息匹配

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

There is an old Spanish saying which states, “Tomorrow is often the busiest day of the week．” How many times have we put off out dreams tomorrow? _1.___ We have to go for them now!

Tomorrow is not promised．

Nobody likes to talk about death, but everybody is going to die at one point．None of us know the day or the hour．___2.____ Don’t go to your tomb(坟墓) with unrealized dreams．Make the decision to go after every dream, big or small right now．

_____3.____

One of the biggest dream killers is fear．Many people could have achieved amazing things if only they weren’t afraid．Just think about all the things you’ve wanted to go, but allowed fear to convince you that you weren’t talented, or good enough．Fear is not real．It is a product of thoughts you create．

Take action to realize your dream．

You can dream about writing a great play, but it’s never going to happen unless you actually put pen to paper．You can dream about finding a cure for cancer, but it will never happen unless you actually become equipped with the necessary tools to find that cure．____4.___ Possibilities are waiting on you．

There are so many amazing opportunities and people waiting on you．How do you get to them? Simple! Follow your dream．___5.__ You’ll never see those doors if you sit around waiting on a dream to happen, instead of actually working to make it happen．

A．Don’t let fear win．

B．In other words, dreams don’t work unless you do．

C．Our dreams should not, and cannot wait．

D．Therefore, today is all we have．

E．You’ll be much happier if you go for it．

F．You were born into the world with a unique gift, which nobody can copy．

G．Doors that you couldn’t imagine open up when you go after what you want．

In a unique research cooperation between Stratasys, Education, R&D departments and MIT’s Self-Assembly Lab, a new process is being developed, known as 4D Printing.

The 4D printing concept, which allows materials to “self-assemble (自行组装)” into 3D structures, was initially proposed by Massachusetts Institute of Technology faculty member Skylar Tibbits. Tibbits and his team combined a strand (缕) of plastic with a layer made out of “smart” material that could self-assemble in water. They advanced this concept by creating materials that can change into several different complicated shapes, though this kind of material remains the bottleneck of 4D technology.

To many people that are just starting to get used to the idea of 3D printers, the name 4D is causing confusion because they cannot understand where this fourth “dimension” coming from. 4D technology shares many of the same principles of 3D printing and is essentially still about creating a new, 3D structure out of certain component; however, Tibbits states the fourth dimension at work here comes from concept of the fourth dimension of time. The difference between these 3D and 4D creations is that these new forms have the ability to transform and adapt over time.

4D printing works through self-assembly — a system where “disordered elements form an “ordered” structure via an interaction. With these 4D printed materials, these disordered materials are strands or sheets of specially designed materials. Environmental changes then stimulate (刺激）a response from them so that they form a preprogrammed shape.

The idea of having adaptable technology that only relies on energy and non-human interactions raises some interesting questions about where 4D printing can be used and the practical applications in dangerous environments. This could mean improved infrastructures in extreme conditions, leading to a reduced need for workers to put themselves at risk, but the potential goes even further than that. The technology promises exciting new possibilities for a variety of applications. A solar panel or similar product could be produced in a flat shape onto which functional devices can be easily installed. It could then be changed to a compact shape for packing and shipping. After arriving at its destination, the product could be stimulated to form a different shape that serves its function. Also it could be used to build furniture, bikes, cars and even buildings. As with many of the ideas being put forward, it is easy to go a step too far into the extreme, but this just shows the potential of 4D in comparison to 3D.

The next stage for the research is to move from printing single strands to sheets and eventually whole structures. And water need not be the process ’ s only energy source.

1.Which of the following displays the fourth dimension of 4D printing?

A. 4D printing creates a new, 3D structure out of certain component.

B. 4D technology reduces need for workers to put themselves at risk.

C. 4D technology can be used in many more fields than 3D printing.

D. 4D printed materials reshape themselves with conditions changing.

2.The major problem concerning the development of 4D printing lies in__________.

A. producing essential 4D printers

B. creating proper smart materials

C. providing a suitable environment

D. promoting practical applications

3.What does the passage lead you to believe?

A. 4D printing will take the place of 3D printing in the near future.

B. Most aspects of our daily life can be affected by 4D printing.

C. 4D printing will benefit humans by saving labor somehow.

D. Smart materials can be transformed into other types of material.

4.It can be inferred from the passage that__________.

A. electricity is not used in 4D technology

B. 4D printing has been applied in industry

C. more potential of 4D is to be discovered

Students’ active performances in class will be the new normal ______ teachers give them more chances.

A. although B. once C. until D. since

The campaign is _____ only partially successful, so we have to keep on working hard.

A.at last B.at latest C.at least D.at best

It was reported last week that developers could take photos from Apple mobile and Google Android devices without the phone owners knowing that the images were being taken. In Apple’s case, developers can also obtain the location information for each photo.

Senator(参议员) Charles Schumer said in a telephone interview that his office had spoken with officials at both Apple and Google on Monday.

“We asked them if they could find a way on their own to prevent Apple from having access to private information,” Mr. Schumer said. “They were friendly and open to the idea that this ought to be changed.”

On Sunday, Mr. Schumer said that he planned to send a letter to the Federal Trade Commission asking the agency to investigate Apple and Google after the privacy concerns came to light. Claudia Bourne Farrell, an F.T.C. spokeswoman, said the agency had received the letter but she could not comment further.

“It worries people to think that one’s personal photos, address book, and who knows what else can be obtained and even posted online without permission,” Mr. Schumer wrote in his letter to the F. T.C. “If the technology exists to open the door to this kind of privacy invasion, then surely technology exists to close it, and that’s exactly what must happen.”

Mr. Schumer said if Apple and Google could not come to an agreement to fix the problem, then he would be forced to take the issue further.

He said other companies had been willing to work with his office to fix issues. “I’m optimistic that we can get this changed without any regulation,” he said. “If it’s not changed, then we’ll turn to the F.T.C., and if that doesn’t work then we’ll consider legislative approach.”

The F.T.C. has warned companies to try to be more vigilant(警醒的) in their efforts to protect consumers when it comes to privacy.

1.The senators spoke with officials at both Apple and Google_______.

A. to urge them not to invade consumers’ privacy.

B. to discuss whether it is illegal to have access to private information.

C. to stop them from developing the technology of taking photos.

D. to keep them from obtaining the location information for each photo.

2.Which of the following statements is True?

A. Privacy invasion from Apple has existed for a long time.

B. Mr. Schumer takes the privacy concerns caused by Apple and Google seriously.

C. Privacy invasion from Google has existed for a long time.

D. Apple and Google have decided to make a change.

3.Mr. Schumer’s letter to the F.T.C. mainly shows that the technology to open the door to privacy invasion_______.

A. causes privacy invasion to happen frequently.

B. can be used if permitted.

C. causes people to worry about the safety of their personal information.

D. causes personal information to be posted online without permission.

4.Where can we read about the passage?

A. In a newspaper.

B. In a magazine.

C. In a science report.

D. In a textbook.

Nowadays many people are concerned about the problem of what to do with electronic waste such as old televisions, computers, radios, cellular telephones and other electronic equipment.

Electronic trash, or e-waste, is piling up faster than ever in American homes and businesses. People do not know what to do with old televisions or computers so they throw them in the trash.

National Solid Waste Management Association (NSWMA) state programs director Chaz Miller says the large amount of electronic waste Americans product is not unexpected.

The US Environmental Protection Agency (EPA) estimates more than 400 million consumer electronic items are dumped each year, and there is a push by more states to ban the waste from landfills (垃圾填埋场) and create recycling programs. They can be torn apart and sorted for useable parts. Mike Fannon who runs the plant in Baltimore says, “There are lots of valuable metals that can be recovered and reused instead of just putting them in the landfill, and in certain components there are some materials that should not really be in the landfill.”

Fannon says nearly 20 percent of electronic waste is recycled nationwide. Thirteen years ago, it was only about 6 percent. Recycling rates continue to rise as more communities have banned electronics from landfills in order to keep e-waste poisons like lead (铅) and mercury (汞) out of garbage dumps.

This year several states like Vermont imposed a ban on electronic waste in landfills. More than 25 other states have also adopted bans on e-waste in landfills. Chaz Miller says more can be done to boost electronic waste recycling.

“We can do much better,” noted Miller. “I think clearly our goal should be to do as well as we do recycling newspapers.”

1.Which of the following does NOT belong to e-waste?

A. Old televisions. B. Old computers.

C. Old cell phones. D. Old newspapers.

2.Why is e-waste banned from landfills in many states?

A. Because it can not be recycled.

B. Because the landfills are already full.

C. Because it might damage the environment.

D. Because it can be shipped to other countries.

3.According to Mike Fannon, what might be the best way of dealing with e-waste?

A. Recycling it. B. Selling it.

C. Burying it. D. Breaking it.

4.What can we learn from the passage?

A. Chaz Miller works for EPA.

B. Miller is optimistic about the future of e-waste.

C. At present, less than 10 percent of e-waste is recycled.

D. All states in the US have banned e-waste from landfills.

短文改错

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（^），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

注意：1．每处错误及其修改均仅限一词；

2．只允许修改10处，多者（从第11处起）不计分。

I’m tired and covered in dust. I’ve been digging all day and I’ll be doing the same tomorrow. Sound awful, doesn’t it ? But I’ve never had so many fun in my life. As an archaeology student, I have already knew something about the Qin Tomb and the terracotta warriors. Most Chinese children can tell you Qin Shihuang was the emperor first unified China. He was a brilliant ruler, and he was also a cruel man who killed thousands of people. When he became the king of the state, he immediately ordered workers to construct an underground tomb for him, which is said to contain great treasures. But, the actual entrance to the tomb has ever been found, nor has the tomb been opened. There are ancient descriptions of crossbows hiding at the tomb’s entrance. It’s said that if everyone steps across the entrance, the crossbows will fire.

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