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.”
1.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.
2.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.
3.According to Michael Yost, we can infer that .
A．the Palmetto bio-printer can work without 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
4.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
Your kids learn a lot from their friends—things you can’t teach them, no matter how much you
want to.
Probably the most important thing kids learn is how to have peer relationships. As a parent, you can’t do this, because you and your child aren’t equals.
For example, when you’re sitting on your family room floor and your very young child asks you to pass him the blocks, you probably hand them right over. If your child is sitting with a peer and asks the same thing, though, he might not get what he wants.
To succeed, your child will need to learn strategies for getting what he wants. For example, he might simply yank (猛拉) the toy out of his friend’s hand. If he does that, he may learn that it’s not the best way of getting what he wants because it leads to fighting and time-outs. The successful child will learn that he needs to negotiate a trade, to wait patiently, or to find something else equally fun to play with.
Friends also provide emotional support, something that is part of the foundation of healthy adulthood. You can’t be with your child on the elementary school playground or at the high school dance. Your child’s friends will be the ones to stick up for her, to include her in games, and later, to tell her she looks great even if her lousy prom (糟糕的舞会) date wanders off instead of dancing with her.
Friends also help your children learn. Friends solve problems together, imitate each other, and
pass on knowledge .
Some experts believe that the single biggest predictor of your child’s success later in life is her ability to make friends. In fact, they claim it’s even more important than IQ and grades.
This doesn’t mean that the kids who are most popular in school do the best later on in life. What matters is not the number of friends a child has but rather the quality of the relationships.
This is good news for those of us who hate to think that popularity really is the Holy Grail of childhood and adolescence. While it’s true that popularity has many advantages, and that many popular kids really are nice people—and not just the best dressed or best looking—it’s better to have a few good friends than to have the admiration of the masses.
1.By giving the example in Paragraph 3, the author wants to show that .
A．kids can learn how to deal with the relationships when they stay with their peers
B．parents should spend more spare time playing with their kids
C．kids should learn how to be polite when they ask their parents for help
D．parents can teach their kids how to be good members in the modern society in their daily life
2.What does the underlined phrase“stick up for” in the fifth paragraph mean?
A．envy B．oppose
C．support D．ignore
3.In the author’s opinion, is more important than being popular for kids.
A．getting high grades
B．having some real friends
C．developing a good habit
D．knowing how to dress themselves up
4.Which of the following can be the best title for the passage?
A．How to Bridge the Generation Gap
B．What It Takes to Be a Good Friend
C．Why Friends Are Important
D．How to Be Popular in School
Brownie and Spotty were neighbor dogs who met every day to play together. These two loved each other and played together so often that they had worn a path through the grass of the field between their respective houses.
One evening, Brownie’s family noticed that Brownie hadn’t returned home. They went looking for him with no success and by the next week he was still missing.
Curiously, Spotty showed up at Brownie’s house alone. Barking, whining (哀叫) and generally pestering (纠缠) Brownie’s human family. Busy with their own lives, they just ignored the nervous little neighbor dog.
Continuously,Ted, Brownie’s owner, was disturbed by the angry, determined little dog. Spotty followed Ted about, barking insistently, then rushing toward a nearby empty lot and back, as if to say, “Follow me! It’s urgent!”
Eventually, Ted followed Spotty to a deserted spot half a mile from the house. There Ted found his beloved Brownie alive, one of his hind legs crushed in a steel leghold trap. Horrified, Ted now wished he’d taken Spotty’s earlier appeals seriously. Then Ted noticed something quite remarkable.
Spotty had done more than simply led Brownie’s human owner to his trapped friend. In a circle around the injured dog, Ted found an array of dog food and table scraps which were later identified as the remains of every meal Spotty had been fed that week!
Spotty had been visiting Brownie regularly, in the hope of keeping his friend alive by sacrificing his own comfort. Spotty had evidently stayed with Brownie to protect him from hunger and other dangers, and keep his spirits up.
Brownie’s leg was treated by a veterinarian (兽医) and he recovered. For many years thereafter, the two families watched the faithful friends chasing each other down that well worn path between their houses.
1.Why did Ted pay little attention to Spotty at the very beginning?
A．Because Ted was tired of listening to Spotty barking.
B．Because Ted only cared about Brownie’s safety.
C．Because Ted was not free at that moment.
D．Because Ted knew where Brownie was.
2.When Ted was led by Spotty to Brownie, he .
A．was curious to find out what had happened
B．highly appreciated Spotty’s help
C．was worried about Brownie’s health
D．regretted not following Spotty earlier
3.Not only did Spotty help Ted find Brownie but also .
A．he went to see his friend and played with him secretly
B．he sent messages to some other persons in his community to save his friend
C．he managed to lead a veterinarian to treat his friend
D．he sent food to his friend, accompanied him and inspired him to cheer up
4.What can we learn from the story?
A．Barking dogs seldom bite.
B．A friend in need is a friend indeed.
C．Love me, love my dog.
D．Every dog has its day.
假如你是高三．1班的班长李华，得知美国学生Forest作为交换生下个月将到你班学习。
请你根据以下要点，给他写封邮件：
1．表示欢迎；
2．简要介绍所在班级以及课程设置情况；
3．希望Forest能介绍一些西方文化及校园生活。
注意：1．词数100左右；
2．可以适当增加细节，以使行文连贯；
3．开头、结尾已给出，不计入总字数。
参考词汇：交换生：an exchange student
Dear Forest,
I'm Li Hua, monitor of Class One, Senior Three.
Yours,
Li Hua
第一节短文改错（共10小题；每小题1分，满分10分）
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处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：把缺词处加一个漏字符号(
)，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：在错的词下划一横线，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。
Recently, smog weather has became more and more serious in parts of China. People forced to wear masks to avoid breathe poisonous air. To settle this problem, the series of measures should be taken. First, we should enact(颁布) more strict law on environmental protection to regulate the industrial punish those factories what ignore the protection. Second, we should develop environmentally-friendly products to improve air quality. Besides, people should build up protection awareness to form a habit by using green products or saving energy. In my opinion, if we all act together, their environment will become more better.
Dad: OK, kid, what' s so important 1. we have to meet in secret?
Daughter :Well, it' s about the 22nd of next month. I- d like to have 2. surprise party for Mum but I need your help. I thought that maybe you could take her to a movie, you know, just the two of you. Then while you' re away I can decorate the family room 3. invite lots of friends.
Dad.That 4. (sound) great but how do I manage to get her back without 5. (go) out to dinner after the movie?
Daughter: Oh, that' s easy. You just say that you want to pick me up in order to make it a family 6. ( celebrate). After the movie is 7. , you send Mum in to get me and when she comes in the front door everyone shouts "Happy birthday" to surprise her.
Dad: What about food? You don't have time to cook it 8. (you) , do you?
Daughter: I’ll order everything to be 9. (send) from the restaurant nearby while you are enjoying the movie.
Dad: I'm so happy you have handled this so 10. (beauty).
