3D printing is a recent technological development that has started making its way into the marketplace. It is a way of making 3D objects from computer models. 3D printing works by adding together layers of material. This pattern is repeated until the layers form a shape for almost any purpose. The almost unlimited possibility of 3D printing is quickly leading to a revolution in how things are made and produced. As with most technology, 3D printing may help to create things that could benefit humans. However, it could also be used to create things that could harm other people.
One of the promising aspects (方面) of 3D printing is that it may help doctors treat patients in need. Currently, 3D printing is being used to create prostheses (假体) that helps replace missing noses and eyeballs, thus greatly cutting down on the usual wait time for a new prostheses. Dentists are also using 3D printers to create custom toothbrushes for patients’ teeth. The toothbrush fits a person's teeth well, which means that they get a much cleaner mouth than with regular toothbrushes. Many scientists see the potential for 3D printing to create replacement organs for people who need organ transplants. This would save lives as it remove the need for such patients to wait for an organ donation (捐献).
Although many people believe 3D printing is a positive technology that could help humans, it may also have the opposite effect. There is a recent controversy (争议) about the ability of 3D printing to produce arms such as guns. Recently, one organization announced the plans to produce a 3D plastic gun. Anyone with the proper technology and with the determination to make a gun could potentially do so. Will the future of 3D printing provide hope or danger to humans?
1.According to the article, how does 3D printing work?
A.It helps companies enter the marketplace.
B.It adds together layers of material together to make a shape.
C.It uses 3D objects to make computer models.
D.It uses printers to make different models of computers.
2.According to the article, what is one possible future benefit of 3D printing?
A.It may help to prevent deaths. B.It can create controversy.
C.It can make a toothbrush. D.It could produce computers.
3.Which paragraph talks about the controversial aspects of 3D printing?
A.Paragraph 1. B.Paragraph 2.
C.Paragraph 3. D.All of the above.
4.What can be inferred from the article?
A.It is not yet known whether there will be more benefits than dangers in 3D printing.
B.Most of companies will start to use 3D printing technology in the future.
C.Soldiers will benefit greatly from advances in 3D printing.
D.The government will probably forbid 3D printing because it is too dangerous.
On a rainy winter day, several decades ago, a British artist named Christopher got on a train in Oxford to go to London. When he began his journey, he never knew that it was the beginning of almost 40 years of accidents and near death experiences.
During the journey, the train fell into an icy river, killing 12 passengers. Christopher managed to swim back to the river bank. He only had a broken leg.
Two years later, Christopher was on a plane from London to Manchester when a door suddenly opened and he fell out. A few minutes later, the plane crashed; 27 people were killed. Christopher was so lucky that he landed in a haystack (干草堆).
A few years later, he was hit by a bus, but again had no serious injuries. Then a year after that, he was driving on a mountain road when he saw a truck coming straight at him. He drove the car off the road, jumped out, landed in a tree — and watched his car fall 100 meters down the mountain.
''There are two ways you can look at it, '' Christopher said. ''I'm either the worlds unluckiest man, or the world's luckiest. '' When a reporter asked Christopher what he thought, he chose the ''luckiest'' one.
Two years ago, aged 71, Christopher bought his first lottery ticket (彩票) in 50 years and won more than 2 million. After this, a TV company in America said they wanted him to make an advertisement. At first he accepted, but then he changed his mind. Christopher said he would not fly to Los Angeles for the filming, because he did not want to push his luck. Who knows? If he had accepted the invitation, maybe he would have had another accident. But Mr. Christopher is a lucky man. If he had had another accident, he probably would have survived that too!
1.What happened in the plane accident from London to Manchester?
A.Christopher fell out of the plane.
B.Christopher fell into an icy water.
C.Christopher landed in a tree.
D.Christopher was the only passenger to survive
2.What was the view of Christopher towards his near death experiences?
A.worried B.confused
C.doubtful D.fortunate
3.Why didn't Christopher fly to Los Angeles for the filming?
A.Because he was not good at filming.
B.Because he had enough money.
C.Because he was sure of another accident.
D.Because he didn't want to risk his life.
4.What is the best title of the passage?
A.A man with nine lives
B.The unluckiest man in the world
C.A man who traveled around the world
D.A man who earned ￡2 million in a lottery
Young ladies with good behavior and social skills will be more confident in society and understand their ability better. This 4-week course teaches social rules, table manners, personal grooming (打扮) and skin care. Classes are easy to learn.
Curriculum. (课程)
Class one: Self Introduction and Introducing Others — Handshaking, Eye contact, and Smiling — Please, Thank You and You’re welcome — Making mistakes and Apologizing — Telephone Etiquette. (礼节)
Class Two: Quick Review — Gift Giving and Receiving — Attending a party — Thank-you Notes — Becoming a Skilled Conversationalist — Joining a Group and Exciting a Conversation
Class Three: Quick Review — Three-Course Meal Instruction — Table skills and Dining Manners — Formal/Informal Place Settings — Use of Proper Utensils (用具) — American/Continental Style of Dining — Entering and Leaving the Table — Posture (姿势) and Conversation.
Class Four: Quick Review — Grooming — Skin Care — Graduation Celebration
Homework will be given at the end of each class.
Class Dates and Pricing
Class span (持续) over four separate days, and each class lasts two hours.
Start Date: Jan 12th 2019
Time: 1:00pm — 3:00pm
Price: $250.00/person
For more information, please email us at Info@itsallaboutetiquette.com or call 480-510-6346.
1.What cannot a girl learn from this course?
A.Social rules B.Table manners
C.Skin Care D.Homework Skills
2.How much should two ladies pay for the course altogether?
A.$175 B.$250
C.$500 D.$725
3.What is the purpose of this course?
A.To teach girls how to behave properly.
B.To develop girls' interest in learning
C.To improve girls' confidence in learning.
D.To teach girls how to provide the best service
假定你是李华，你将代表班级参加你校举办的主题为”保持健康的生活方式”的英语演讲比赛。请根据比赛主题写一篇演讲稿，内容包括:
1.保持健康的生活方式的好处；
2.如何保持健康的生活方式；
3.号召大家保持健康的生活方式。
注意:
1.词数100左右；
2.可以适当增加细节,以使行文连贯；
3.开头和结尾已给出，不计入总词数。
Hello, everyone!
___________________________________________________________________________________________________________________________________________________________________________________________________________________________
That’s all. Thanks for your listening!
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:在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。
I was born in a small poorly county. I have no beautiful clothes and no pretty toys in my childhood. Before going to school at sixth, I only played with some of my friend nearby. It was such a wonderful period, when I would never forget. I always made toys ourselves. Sometimes my parents would help me making toys as well. I could play in outside every day. But as farmer's child, I must help my parents with farm work in the busy season, such as planting and harvesting. However, when I think back to my childhood every time, I will felt very happy.
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Music technology 1.(be) a kind of technology to musical arts. It is the use of sequencer (音序器)and software or electronic devices (设备). Sometimes music technology 2.(consider) as sound technology. Although these two fields are similar, they are also 3.(complete) different. Music technology contains the composition, recording, while sound technology may only contain the production of different sounds.
4.great number of universities offer study programs 5.students who study music. In these programs, students can learn about technical and scientific applications as well as study acoustic (声音的)science, programming, music theory, and business 6.(lesson) related to the music industry. Students can expect 7.(learn) digital recording, digital sound processing and editing and more to improve 8. (they)ability.
Because music technology is a mixture of music and technology, those 9. studies it need understand both. They should have abilities to read music and play a traditional 10.(music) instrument as well as a sound understanding.
