Three-dimensional printers are fast becoming everyday devices in the United States. Three-D printers are used to make everything from automobile parts to bone replacements for human patients. American research scientists are now working on creating replacements for living tissue.
Researchers at the Medical University of South Carolina have been working on creating and manufacturing living tissue since 2003．This process is called biofabrication (生物制造) . It requires special printing equipment and a special kind of ink.
Traditional printers require ink to produce an image or design on a piece of paper. For their three-D printer, the South Carolina researchers prepare complex nutritious solutions they call bio-inks. Bio-inks are made of proteins and glucose (葡萄糖) , which normally provides energy for most cells of the body. The researchers also add living cells taken from the animal that will receive the new, printed tissue. The bio-inks are then added to a device that researchers call the Palmetto bio-printer.
Sarah Grace Dennis is one of the researchers at the Medical University of South Carolina. She says new technology, like the Palmetto bio-printer, is a great help to the biofabrication process.
The bio-inks are placed in three dispensers (分配器) , containers, inside the printer. Lasers control both the position of the printing surface and the places where the bio-ink is released.
Michael Yost is a leader of the research team. He says the printing process is fully automated— machine-operated. He says that the Palmetto bio-printer makes it possible to create complex tissue types.
The researchers say bio-printing is still experimental. But they hope in a few years they may be able to print tissue to replace damaged human organs.
But there are still some problems which need to be solved. Some scientists worry about how to get blood to the replacement tissue. The flow of blood is important to keep the printed tissue alive.
Michael Yost hopes that more people will believe in the benefits of biofabrication.
“Tissue biofabrication is a reality, and it is a reality now, and if you come here and you get to see it. You will get to see it. You can’t touch it, but you will see it and think this is real. And this is really human.”What can we know about the bio-inks?
| A．They are the necessities of bio-printing. |
| B．They only contain proteins and glucose. |
| C．They can be placed in the traditional printers. |
| D．They are available in our local drugstores. |
Which of the following is one of the concerns with biofabrication?
| A．Researchers can’t find enough living cells of animals to make the bio-inks. |
| B．The price of the bio-printer is too high and most people can’t afford it. |
| C．Scientists have some difficulty in getting the blood to the replacement tissue. |
| D．People are worried about the safety of the biofabrication process. |
According to Michael Yost, we can infer that .
| A．the Palmetto bio-printer can workwithout power |
| B．the Palmetto bio-printer has been used to treat the patients |
| C．the Palmetto bio-printer can only be found in the United States |
| D．the Palmetto bio-printer will have a bright future in medical use |
The passage mainly tells us about .
| A．the three-D printer and its working principles |
| B．the bio-inks and their use in bio-printing |
| C．the spread use of the bio-printer in the USA |
| D．the growing demand for biofabrication |
Forget wearing your heart on your sleeve. It’s your hair that reveals what you’re really like.
If you want to show your goal-set side, go for a high ponytail. People with this hairstyle tend to be results-driven and logical, according to Jean Haner, a US expert in face reading who wrote The Wisdom of Your Face. When she first came out as an actress, Li Bingbing’s looks were often described as fragile, partly because of her long locks. But now, her polished high ponytail has convinced everyone that she is unstoppable and will go to any lengths to achieve her goals.
Wavy hair is attractive to many. But if you have curly hair and all you want to do is straighten it, this usually means your life is too chaotic（混乱） and you need to calm down. US singer Taylor Swift is a perfect example of this kind. By making hair straight, she’s controlling its intensity and giving herself a sense of calmness, according to Cosmopolitan magazine. She may have decided to enjoy herself for a moment after all the ups and downs in her love life.
Want to have more fun in your life? Curly hair may give you away. For those who have straight hair that is always curled, it can mean they’re craving for a more interesting life. The theory is that curly hair is more interesting than straight hair and will lead to more exciting experiences. If you don’t believe it, take US singer Beyonce Knowles’ case as an example. Her curly hairdo presents a more positive and fun image to the world.
If you have a super short wash-and-go hairstyle, you must be super confident. Miley Cyrus is one of those types. Long gone are the days when she was the lovely Disney star who had long wavy strands. Now she has a super short wash-and-go hairdo that is as rebellious as her personality. As she told E! Online, by keeping her hair short, she is speaking on behalf of girls everywhere, breaking the stereotype of more traditional hairstyles.How does the author develop the passage?
| A．By giving examples | B．By making comparison |
| C．By making assumption | D．By quoting wise words |
What’s the meaning of the underlined phrase“give you away”in para4？
| A．Stop you having fun | B．Show your inner secret |
| C．Bring more money | D．Attract more fans |
According to the passage, we can infer .
| A．High ponytail means being more logical |
| B．Taylor Swift used to be a lovely Disney star |
| C．US singer Beyonce Knowles likes straight hairstyle |
| D．Li Bingbing experienced ups and downs in her love life |
If you want to show your super confidence, you are advised to have .
| A．a high ponytail | B．a straight hair |
| C．a curly hair | D．a short wash-and-go hairdo |
When Rebecca Saxon was diagnosed with cancer at the young age of 27, she thought her life was over. But in her darkest hour, inspiration struck and she found a way of turning her disaster into advantage.
Following her cancer treatment, Rebecca launched a successful business 'Something Blue Bridal Shoes，which is about wedding shoes for brides.
Rebecca, from London, England, says: 'I started doing sketches of wedding shoes with blue soles when I was halfway through my cancer treatment. I had a hit a real low and was going through that whole "Will I live or die?" situation. But I decided that I was going to pick myself up and fight this cancer. The sketches were my release and the way I got through the many hours spent in a hospital room.
“ I had no idea what was going to happen to me. But I knew I had to be positive if I was going to overcome this treatment. I told myself this was not going to be the end for me. I decided to channel my negative feelings and start drawing.
“I had always loved fashion and when I was younger. Several of my friends were getting married at the time so weddings were very much in the air. So initially, I would be drawing designs for bridal gowns and other garments.
“But then I started sketching wedding footwear - designing shoes with distinctive, blue soles which were super comfy too. I thought it would be a lovely way of integrating the 'something old, something new, something borrowed, something blue' tradition.
“Drawing really helped me deal with my treatment. Rebecca was given the all-clear in August 2011.
With the encouragement of her entrepreneur boyfriend, Mike Bandar, she then turned her dreams into her reality and set up 'Something Blue Bridal Shoes'. Each brand shoe from the collection has a blue sole, predicting the age-old tradition of what a bride should wear at her wedding for good luck.When did Rebecca feel when she knew her illness first?
| A．Indifferent | B．Disappointed | C．Hopeful | D．Curious |
Rebecca specially designed shoes for .
| A．patients in hospital | B．married couple |
| C．brides in the wedding | D．homeless people |
What can we know from the passage?
| A．Rebecca designed shoes during her cancer treatment. |
| B．Rebecca’s boyfriend parted with her because of her cancer. |
| C．Rebecca wanted to be a bride wearing the shoes she designed herself. |
| D．Rebecca’s friends wear Blue Bridal Shoes during the wedding. |
What’s the meaning of the underlined phrase“ was given the all-clear”？
| A．gave up the treatment |
| B．was announced incurable |
| C．broke away from dangerous period |
| D．was operated on again |
In the US and Britain, the slogan around colleges was “Save water. Shower with a friend.” Now, Wuhan University has come up with another system for the campus bathhouse. It charges students for the amount of time in a shower. Before entering the bathhouse, students pay for the amount of time they want in the shower with cash or their student ID card. The clock starts ticking the minute the tape is turned on. It pauses when a button is pressed for soap. An integrated circuit(IC) card reader at each tap shows the time. No money, no water. The benefits of the new system can be seen with the old system, which charged 1 Yuan for each person regardless of time in the shower. The university used about 320 tones of water daily under the old system, but only 160 tons now.
Many students use the new system but opinions on it are divided. Some students say it is bad because bathing had become a sort of race. Many people using it for the first time are not sure how long they need to shower. Some might be embarrassed if their time is up and they’re still covered in soap. They have to ask the bathhouse worker to help them buy extra time.
“It’s a flaw in the system that you can not buy extra time on the ID card,” said Ren, a freshman in Wuhan University. The university is also considering some students’ suggestions that they be allowed to pay after they’ve finished the shower. Not surprisingly, some are complaining about losing the hour shower. But many students say the move helps them develop a water-saving sense.
Without the time limits, most students tended to shower for 30 to an hour in the bathhouse.
Some even used the hot water to wash their clothes. “In my experience, 10-20 minutes is enough,” said Dai Zhihua, a third-year student who usually takes 8 minutes.
A similar system has been installed in other universities. Shanghai Normal University introduced it at its Fengxiang Campus in September. The bathing fee there is 0.2 Yuan per minute. One male student responded by setting a record with a two-minute shower.According to the passage, which of the following is NOT true?
| A．Students pay for the amount of time they want in the shower. |
| B．The clock times all through while the student is bathing except when the bather paused for soap. |
| C．If money runs out, there will be no water. |
| D．Having finished bathing, the student has to pay for it. |
The underline word “flaw” (Paragraph3) most probably means______.
| A．perfection | B．advantage | C．pity | D．fault |
Since the new system has performed, ______ of water can be saved.
| A．a quarter | B．one third |
| C．one half | D．two thirds |
It can be inferred from the passage that______.
| A．the new operation can solve the water crisis. |
| B．The new operation can raise students’ environmental awareness. |
| C．a similar operation has been set in other universities. |
| D．The university has saved a lot of water by using the new system. |
In which column can you find this passage?
| A．People. | B．Society |
| C．Campus Life. | D．Lifestyle. |
Winners Club
You choose to be a winner!
The Winners Club is a bank account specially designed for teenagers. It has been made to help you better manage your money. The Winners Club is a transaction account(交易账户)where you receive a keycard so you can get to your money 24/7—that’s 24 hours a day, 7 days a week!
It’s a club with impressive features for teenagers：
● No account keeping fees!
You’re no millionaire so we don’t expect you to pay large fees. In fact, there are no account keeping or transaction fees!
● Excellent interest rates!
You want your money to grow. The Winners Club has a good rate of interest which gets even better if you make at least two deposits without taking them out in a month.
● Convenient
Teenagers are busy — we get that. You may never need to come to a bank at all. With the Winners Club you can choose to use handy tellers and to bank from home using the phone and the Internet...You can have money directly deposited into your Winners Club account. This could be your pocket money or your pay from your parttime job!
● Mega magazine included
Along with your regular report, you will receive a FREE magazine full of good ideas to make even more of your money. There are also fantastic offers and competitions only for Winners Club members.
The Winners Club is a great choice for teenagers. And it is so easy to join. Simply fill in an application form. You will have to get permission from your parent or guardian (so we can organize that cool keycard)but it is easy. We can’t wait to hear from you. It’s the best way to choose to be a winner!The Winners Club is a bank account intended for________.
| A．parents | B．teenagers | C．winners | D．adults |
Which of the following is TRUE about the Winners Club?
| A．Special gifts are ready for parents. |
| B．The bank opens only on work days. |
| C．Services are convenient for its members. |
| D．Fees are necessary for the account keeping. |
The Winners Club provides magazines which________.
| A．encourage spending |
| B．are free to all teenagers |
| C．are full of adventure stories |
| D．help to make more of your money |
If you want to be a member of the Club，you must________.
| A．be an Internet user |
| B．be permitted by your parent |
| C．have a big sum of money |
| D．be in your twenties |
What is the purpose of this text?
| A．To set up a club. |
| B．To provide parttime jobs. |
| C．To organize keycards. |
| D．To introduce a new banking service. |
Outside our hotel in Ho Chi Minh City, Vietnam, a seemingly ancient woman waited beside the door with her hand outstretched. Every day I put my hand in hers as our eyes met. She never failed to return my smile, my grasp, and my greeting.
On the last day of our visit, I found myself alone on a busy corner across the street from our hotel. Bicycles and motorbikes rushed in front of me. As I hesitated on the sidewalk, I felt a hand on my elbow and looked down to see the smile of my small beggar friend looking up at me. She nodded her head toward the street, indicating that she would take me across. Together, we moved slowly into the chaos.
Then we moved on toward the sidewalk, where she pulled my face down to hers, kissed me on both cheeks, and then left, still smiling and waving back to me.
Traveling in poorer nations, I have witnessed a variety of ways to deal with beggars. The most common response of tourists faced with the poverty-stricken is to ignore them and focus their eyes elsewhere. I have seen people push away an outstretched hand in angry annoyance. A few may drop a few coins into the hand in a hurry, hoping that other ragged pursuers won’t immediately appear on the scene.
For many reasons, giving money is not the best response to an outstretched hand. Many world travelers have discovered that the greatest gift they can give is their time and respect. Everyone needs recognition, to be seen as worthy of being known, to feel appreciated and loved. And I believe that everyone is worthy and worth knowing.The woman beggars helped the author go across the busy street because __________.
| A．the author gave her material assistance |
| B．the author treated her kindly and friendly |
| C．the author would help her as a reward |
| D．the author was a foreigner |
From the story, what position of the beggars in the author’s mind might be?
| A．equal | B．superior | C．lower | D．valuable |
In common cases, people will do the following things to the beggars EXCEPT for ________.
| A．pretending to see nothing |
| B．handing out some money |
| C．refusing them angrily |
| D．greeting them normally |
According to the author, the most important things beggars really need are _________.
| A．mercy and pity | B．money and food |
| C．smile and greeting | D．attention and respect |
The purpose of the passage is to _________.
| A．show how poor the beggars are in Vietnam |
| B．offer some advice on dealing with begging |
| C．express what we should offer the beggars |
| D．describe an experience with a beggar |