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On a Saturday morning earlier this September, the world got its first look at the Strati. This electric vehicle is unlike any 
other currently on the road. It rolls on four wheels, but its body and chassis(底盘) weren’t built in a factory. Instead, Strati’s designers used a technology called 3-D printing. It created those parts of the car in one piece, from the ground up.
“Compared to a typical vehicle on the road, the Strati definitely looks different,” says Greg Schroeder, a senior research engineer at the Center for Automotive Research in Ann Arbor, Mich. He did not work on the new car. His organization studies trends and changes in the auto industry.
It took 44 hours to print the new car at the International Manufacturing Technology Show in Chicago. Over the next few days, the car’s designers installed additional parts. These included the car’s engine, brakes and tires. Then, early on September 13, Jay Rogers climbed into the car, started its engine and drove the vehicle onto the street. Rogers helped found Local Motors. It’s the Arizona-based company behind the Strati. Two weeks later, his team printed a second Strati, and just as fast, at a fair in New York City.
Justin Fishkin, a local Motors official, sees the Strati as a window into the future. Today, car buyers are limited in their choice of a vehicle. They can order only what car companies have already designed. But in the future, he says, you may be able to design your own car online and then get it printed to order.
Manufacturing experts say 3-D printing has begun to revolutionize how they make things. The technology has been around for decades. But these machines used to be so expensive that only large companies could afford them. In the last few years, though, that has changed. Many of the machines are now inexpensive enough for small companies—or even individuals —to own. Some local libraries make them available to the public. High Schools are beginning to use them in classrooms. Wide access to these printers means people can now design and print a wide variety of new things.
The car’s printer is a one-of-a-kind device.
The technology behind the 3-D printer used in Chicago is an example of additive manufacturing. This process builds solid objects, slice by slice, from the bottom up. (“Strati” means layers, in Italian.) A mechanical arm moves a nozzle from one side to another, back and forth. As it moves, the nozzle deposits a liquid—often melted plastic or metal (but it could be food, concrete or even cells) —that quickly hardens or bonds to become solid or semi-solid. This creates a single, thin layer. Once a layer is complete, the printer starts depositing the next one.
“There’s a lot of interest in 3-D printing in the auto industry,” says Schroeder. Right now, the technology is particularly useful for building models of cars or car parts.
To compete with current auto manufacturers, the 3-D printer would have to increase in a hurry, Schroeder says. By contrast, he notes, a Ford F-150 pickup truck rolls off an assembly line at a rate of roughly one per minute. To print as many Stratis would require many more printers. Schroeder says he doesn’t see 3-D printing soon taking over for such high-volume manufacturing. But, he adds, “Who knows what will h
appen in the long term?”
Scientists at Oak Ridge National Laboratory in Tennessee designed the 3-D printer used in Chicago. Lonnie Love, a research scientist at the lab, led the effort.
Additive manufacturing often is slow and expensive. It also may produce materials that are unreliable, Love says. So for two years, his team searched for ways to make 3-D printing better. They built new machines and tested them over and over.
All of that work paid off: their new machine is fast and uses less expensive material than earlier printers. In addition, it prints a plastic embedded with fibers of carbon to produce a stronger material. This helps ensure the material won’t crack or break under pressure.
1.Which of the following statements about the first Strati is TRUE?
A. It was born in a car factory in Chicago.
B. All parts of it were not made by using a technology called 3-D technology.
C. It is a pity that it has not run on the street so far.
D. Many senior research engineers worked on it, including Greg Schroeder.
2.What can we infer from Paragraph 
5?
A. Large companies are always rich enough to buy expensive things.
B. Now High Schools are beginning to use 3-D printers in classrooms.
C. Wide access to 3-D printers has made it possible for people to order novel things online.
D. High prices of new products can stop them from being used widely in the beginning.
3.What does the word “nozzle” in Paragraph 7 possibly refer to?
A. A single, thin layer.
B. A part of the 3-D printer.
C. A solid or semi-solid object.
D. A person who operates the machine.
4.Why did Lonnie Love make efforts to improve 3-D printing with his team?
A. Because additive manufacturing might produce unreliable materials.
B. Because he just was interested in making new things.
C. Because he just wanted to build new machines and test them
D. Because additive manufacturing is always slow but inexpensive.
5.Which of the following can be the best title for this passage?
A. 3-D Printers Are Coming
B. 3-D Printers Are Becoming Well- Known
C. 3-D Printers Are Becoming Cheaper
D. 3-D Printers Are Making Cars
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On a Saturday morning earlier this September, the world got its first look at the Strati. This electric vehicle is unlike any other currently on the road. It rolls on four wheels, but its body and chassis(底盘) weren’t built in a factory. Instead, Strati’s designers used a technology called 3-D printing. It created those parts of the car in one piece, from the ground up.
“Compared to a typical vehicle on the road, the Strati definitely looks different,” says Greg Schroeder, a senior research engineer at the Center for Automotive Research in Ann Arbor, Mich. He did not work on the new car. His organization studies trends and changes in the auto industry.
It took 44 hours to print the new car at the International Manufacturing Technology Show in Chicago. Over the next few days, the car’s designers installed additional parts. These included the car’s engine, brakes and tires. Then, early on September 13, Jay Rogers climbed into the car, started its engine and drove the vehicle onto the street. Rogers helped found Local Motors. It’s the Arizona-based company behind the Strati. Two weeks later, his team printed a second Strati, and just as fast, at a fair in New York City.
Justin Fishkin, a local Motors official, sees the Strati as a window into the future. Today, car buyers are limited in their choice of a vehicle. They can order only what car companies have already designed. But in the future, he says, you may be able to design your own car online and then get it printed to order.
Manufacturing experts say 3-D printing has begun to revolutionize how they make things. The technology has been around for decades. But these machines used to be so expensive that only large companies could afford them. In the last few years, though, that has changed. Many of the machines are now inexpensive enough for small companies—or even individuals —to own. Some local libraries make them available to the public. High Schools are beginning to use them in classrooms. Wide access to these printers means people can now design and print a wide variety of new things.
The car’s printer is a one-of-a-kind device.
The technology behind the 3-D printer used in Chicago is an example of additive manufacturing. This process builds solid objects, slice by slice, from the bottom up. (“Strati” means layers, in Italian.) A mechanical arm moves a nozzle from one side to another, back and forth. As it moves, the nozzle deposits a liquid—often melted plastic or metal (but it could be food, concrete or even cells) —that quickly hardens or bonds to become solid or semi-solid. This creates a single, thin layer. Once a layer is complete, the printer starts depositing the next one.
“There’s a lot of interest in 3-D printing in the auto industry,” says Schroeder. Right now, the technology is particularly useful for building models of cars or car parts.
To compete with current auto manufacturers, the 3-D printer would have to increase in a hurry, Schroeder says. By contrast, he notes, a Ford F-150 pickup truck rolls off an assembly line at a rate of roughly one per minute. To print as many Stratis would require many more printers. Schroeder says he doesn’t see 3-D printing soon taking over for such high-volume manufacturing. But, he adds, “Who knows what will happen in the long term?”
Scientists at Oak Ridge National Laboratory in Tennessee designed the 3-D printer used in Chicago. Lonnie Love, a research scientist at the lab, led the effort.
Additive manufacturing often is slow and expensive. It also may produce materials that are unreliable, Love says. So for two years, his team searched for ways to make 3-D printing better. They built new machines and tested them over and over.
All of that work paid off: their new machine is fast and uses less expensive material than earlier printers. In addition, it prints a plastic embedded with fibers of carbon to produce a stronger material. This helps ensure the material won’t crack or break under pressure.
1.Which of the following statements about the first Strati is TRUE?
A. It was born in a car factory in Chicago.
B. All parts of it were not made by using a technology called 3-D technology.
C. It is a pity that it has not run on the street so far.
D. Many senior research engineers worked on it, including Greg Schroeder.
2. What can we infer from Paragraph 5?
A. Large companies are always rich enough to buy expensive things.
B. Now High Schools are beginning to use 3-D printers in classrooms.
C. Wide access to 3-D printers has made it possible for people to order novel things online.
D. High prices of new products can stop them from being used widely in the beginning.
3.What does the word “nozzle” in Paragraph 7 possibly refer to?
A. A single, thin layer.
B. A part of the 3-D printer.
C. A solid or semi-solid object.
D. A person who operates the machine.
4. Why did Lonnie Love make efforts to improve 3-D printing with his team?
A. Because additive manufacturing might produce unreliable materials.
B. Because he just was interested in making new things.
C. Because he just wanted to build new machines and test them
D. Because additive manufacturing is always slow but inexpensive.
5.Which of the following can be the best title for this passage?
A. 3-D Printers Are Coming
B. 3-D Printers Are Becoming Well- Known
C. 3-D Printers Are Becoming Cheaper
D. 3-D Printers Are Making Cars
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完形填空
This morning,I arrived at my office earlier to catch up on some emails.On the way to _____,I couldn’t __________ it when I saw some beautiful flowers at the grocery store.I picked some up, __________a few chocolate bars.
With the office so empty,I decided to take the __________to put the chocolate bars on some desks.I started heading towards areas __________ no one had come yet.
I __________ one and a smile card on the CEO’s desk.And then I went to his __________ desk and placed one there,and quickly put a third one on the desk of a quiet gentleman.Later,I entered the kitchen, __________ two cups of water and walked into the __________.I took out the flowers from my bag and __________ them in two bunches,one in each cup.
With a little sigh of __________,I stepped out of the rest room and looked around.The office was still __________ empty and the people closest to me were __________with a Monday morning “How was your weekend?” __________.I __________ and went back to my desk.
It struck me that my housemate who had packed my lunch for me so __________ today snuck(偷偷地给) a chocolate bar in there,so I __________ place it on the desk of our receptionist to complete the circle as I headed out of the office this evening.Our receptionist is always the first person in the office,and she always __________ me with a smile when I come in.Maybe tomorrow morning,this __________ can greet her.
I have no __________ how they feel when receiving the gifts,but they will surely smile!
1.A.work B.job C.company D.business
2.A.stop B.help C.get D.afford
3.A.regardless of B.along with C.except for D.instead of
4.A.adventure B.authority C.possibility D.opportunity
5.A.when B.because C.though D.where
6.A.chose B.placed C.delivered D.carried
7.A.wife’s B.manager’s C.assistant’s D.director’s
8.A.discovered B.ordered C.filled D.emptied
9.A.rest room B.meeting room C.smoking area D.office room
10.A.applied B.adjusted C.arranged D.attached
11.A.regret B.concern C.relief D.excitement
12.A.especially B.thoroughly C.totally D.pretty
13.A.concerned B.accustomed C.limited D.occupied
14.A.conversation B.congratulation C.consideration D.condition
15.A.amazed B.smiled C.delighted D.celebrated
16.A.sweetly B.obviously C.wildly D.fortunately
17.A.need B.could C.must D.dare
18.A.waves B.nods C.greets D.meets
19.A.gift B.performance C.flower D.method
20.A.opinion B.point C.view D.idea
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This morning I woke up earlier with lots of troubles going on and many decisions to make.I decided to go for a ____and try to relax.When this happens I____repeating to myself "don't stop being kind when others may have____ matters to fight".I felt better____walking in the park enjoying the beautiful trees,smiles and "good____"to and from strangers.I decided to go____on my way back.
After paying I sat down and got a____that the supermarket offered as a promotion（促销）.An elderly man sat next to me and started talking very ____.I noticed he had hearing aids in both____.He had a coffee too.I tried____ but I realized he couldn't understand anything.I stayed anyway and he told me about his difficulties in____,his son and his age!He____to share how he had his coffee there and was____to be still able to do the shopping on his own, etc.
He said he liked talking to people and he____many times for boring me with his talk.I told him talking to him was lovely and after a while I said goodbye and____him a good day.He was so happy and____.He thanked me many times and the last thing he said was "thank you for listening".Those key words,I thought,were the whole____.I just stayed and____.
He____it,and we all need it,just someone to listen I was very happy and grateful too.My morning had turned into a very____one because of him.
1.A. picnic B. walk C. drive D. holiday
2.A. dislike B. stop C. keep D. regret
3.A. worse B. better C. smaller D. fewer
4.A. though B. if C. unless D. when
5.A. afternoons B. mornings C. evenings D. nights
6.A. hiking B. traveling C. swimming D. shopping
7.A. coffee B. beer C. bag D. tea
8.A. secretly B. lowly C. loud D. softly
9.A. legs B. ears C. eyes D. arms
10.A. reacting B. defending C. correcting D. persuading
11.A. learning B. speaking C. hearing D. writing
12.A. went on B. brought in C. gave out D. put off
13.A. sorry B. frightened C. bored D. happy
14.A. complained B. commented C. apologized D. forgave
15.A. made B. wished C. gave D. promised
16.A. sad B. puzzled C. disturbed D. grateful
17.A. problem B. failure C. point D. life
18.A. laughed B. listened C. looked D. imagined
19.A. needed B. liked C. hated D. missed
20.A. foolish B. limited C. convincing D. special
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_____ the early bus, Tom got up much earlier than usual that morning.
A. In order to not miss B. In order not to miss
C. In order don’t miss D. In order don’t to miss
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____ catch the first bus, she got up earlier that morning.
A. In order to B. So as to C. In order that D. So that
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The Attack on September 11th
New York: When the first jet struck Tower 1 at World Trade Center at 8: 48 am on Tuesday, the people in Tower 2 at World Trade Center with a view of the instant damage across the divide had the clearest sense of what they too must do : get out fast.
Katherine Ilachinski, who had been knocked off her chair by the blast of heat exploding from the neighboring tower, was one of those. Despite her 70 years of age, Ms Ilachinski, an architect working on the 91st floor of Tower 2 at World Trade Center, the south tower, went for the stairs. Twelve floors above her, Judy Wein, a manager, screamed and set off too.
But others up and down the 110 floors, many without clear views of the damage across the way and thus unclear about what was happening, were not so sure. And the 18 minutes before the next plane would hit were ticking off.
Among the uncertainty about what was the best thing to do, formal announcements inside the south tower instructed people to stay put, assuring them that the building was sound and the threat was limited to the other tower.
Some left, others stayed, some began to climb down and, when met with more announcements and other warning to stop or return, went back up. The decisions made in those instants proved to be of great importance, because many who chose to stay, were doomed (注定) when the second jet crashed into the south tower killing many and stranding (使…某物留在) many more in the floors above where the jet hit.
One of those caught in indecision(犹豫不决) was the manager at Fuji Bank USA. Richard Jacobs of Fuji Bank left the 79th floor with the other office workers, but on the 48th floor they heard the announcement that the situation was under control. Several got in the lifts and went back up two minutes or so before the plane crashed into their floor.
1.From the passage , we know that the south tower was hit by the plane __________
A. at 8: 30
B. 18 minutes earlier than the north tower
C. at around 9: 06
D. at 8: 48
2.The underlined words “stay put” mean _________
A. stay in the building B. leave at once
C. put everything back and then leave D. keep silent
3.Which floor was hit by the second jet?
A. The 91st floor. B. The 71st floor.
C. The 60th floor. D. The 79th floor.
4.Few people would have died if __________
A. more announcements had been made
B. people hadn’t used the lifts
C. the incident had happened on a weekend
D. people chose to stay
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I got up early this morning，but I ________ so because I was not on duty today．
A．mustn’t have done B．needn’t have done
C．didn’t need to do D．can’t have done
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"I'm going shopping in the village，"George's mother said to George on Saturday morning."So be a good boy and don't get into trouble.And don't forget ______ good care of Grandma."Then out she went.
Grandma ______ in the chair by the window when she opened one little eye and said，"Now you heard ______ your mother said，George."
"Yes，Grandma，"George said.
George was bored to tears.He didn't have a brother or a sister.His father was a farmer，and ______ farm they lived on was miles away from anywhere ______there were never any children to play with.He was tired of staring at ______ pigs，hens，cows and sheep.He was especially tired of having to live in the house with his grandma.Looking after her all by himself was hardly ______ way to spend a Saturday morning.
"Go and make me a cup of tea for a start，______ sugar and milk."Grandma said.Most grandmothers are lovely，kind，helpful old ladies，but not this one.George's grandma was a woman ______ was always complaining about something or other.She spent all day ______ on her chair by the window.George ______ that Grandma used to be a gentle lady，but as she grew older，she was not able to look after herself and even worse，she was easy to get angry.
"We ______ be nice to the old，George，"His mother always told him.
Thinking of this，George ______ into the kitchen and made Grandma a cup of tea with a teabag.He put one spoon of sugar and ______ milk in it.He stirred the tea well and carried it into the living room ______.
1.A. take B. taking C. to take D. takes
2.A. sleep B. sleeps C. is sleeping D. was sleeping
3.A. that B. what C. where D. which
4.A. a B. an C. the D. /
5.A. but B. if C. or D. so
6.A. hundred B. hundreds C. hundredth D. hundreds of
7.A. exciting B. the most exciting C. more exciting D. much more exciting
8.A. in B. with C. of D. for
9.A. who B. which C. where D. when
10.A. sitting B. sits C. sit D. sat
11.A. tell B. told C. was told D. has told
12.A. should B. would C. might D. can
13.A. goes B. went C. will go D. has gone
14.A. many B. any C. few D. some
15.A. care B. careful C. carefully D. careless
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On Saturday, millions of people around the world will celebrate Saint Patrick’s Day, which honors Patron Saint (or main religious figure) of Ireland. Communities across the United States will host parades (游行), parties, and other festivities to mark the occasion.
This year, cities like Boston, New York, and Chicago have organized massive (大规模的) events celebrating Saint Patrick's Day. In New York City, hundreds of thousands of people will gather to watch the Saint Patrick’s Day parade — the nation’s largest. It is one of the most watched parades in the world. Last year, almost 2 million spectators(观众) and more than 150,000 participants (参与者) filled the streets. The parade, first held in 1776, is also one of the oldest.
Chicago also throws a big celebration. Every year, the Chicago River, which crosses the city, glows (反光) green as event organizers dump about 40 pounds of fluorescence (荧光粉), a powerful dye (染料), into the water.
Boston keeps its parade rolling for three hours or more. It is the nation’s second-largest parade. The city will also salute (致敬) one of its most famous former residents (居民), President John F. Kennedy, by opening the exhibit “A Journey Home: John F. Kennedy and Ireland,” at his official library.
Patron Saint lived in Britain in the early fifth century, when it was still part of the Roman Empire (帝国). He was captured and sold into slavery (奴隶制) in Ireland when he was only 16. He eventually escaped slavery and turned to a life of religious devotion. He trained to become a minister (主教) and set out to spread Christianity throughout Ireland. After 30 years as a religious leader, Patrick died on March 17, 1461. Saint Patrick’s Day is always celebrated on March 17. In Ireland, it is an official holiday.
1.What’s the best title of the passage?
A.History of Saint Patrick’s Day B.An Official Holiday in US
C.The Largest Parade in the World D.Celebrations across the Country
2.What do you think is the official color of St. Patrick’s Day?
A.Green. B.Red.
C.Black. D.Yellow.
3.The last paragraph is mainly about _____.
A.the cruel slave trade. B.Roman Empire’s contribution.
C.activities during Saint Patrick’s Day D.Ireland’s Patron Saint
4.Which of the following is not correct according to the passage?
A.Parade is a most important event to observe Saint Patrick’s Day.
B.Saint Patrick’s Day is a religious holiday.
C.Saluting the former president has become a main event on the occasion.
D.The Saint Patrick’s Day parade has a history of over two centuries.
other currently on the road. It rolls on four wheels, but its body and chassis(底盘) weren’t built in a factory. Instead, Strati’s designers used a technology called 3-D printing. It created those parts of the car in one piece, from the ground up.
appen in the long term?”
5?