Recently researchers at the University of Zurich are adding a new member to the drone (无人机) family. Unlike most drones whose application is to make selfies (自拍) or transport something, this drone was built with first aid workers and rescue efforts in mind. Disaster sites are rarely of logical shapes and sizes. So having a drone that could change its shape and size to fit through tight spaces on the fly could prove extremely valuable.
As is often the case in experimental robotic projects, researchers met some technical shortcomings at the beginning. The airplane mode of the existing aircraft, such as passenger planes helicopters and the common drones, couldn't meet the demand of different environmental features. Eventually, they turned to animals for inspiration﹣specifically how some birds can fold their wings to fly through narrow passages.
What makes it distinguishing is that when faced with a narrow passage, it can change into an H shape. Or it can shrink itself into an O shape, arms folded into its body. And if that isn't enough it can also transform into a T shape, allowing an on﹣board camera on the central frame to, get as close as possible to its focal object. While the working concept model is impressive, the researchers aren't done with the folding drone yet They want to improve the structure of the drone so that it can fully fold in three dimensions (维度), offering even mare shapes, And they want to create full auto operation﹣a drone that looks at the changing land features in, for example, an apartment building partly destroyed by an earthquake and changes its shape to meet is current needs. Researchers say their final goal is to give the drowse a high﹣level instruction such as "enter that building, inspect every mom and come back" and let it figure out by itself how to do it.Therefore, it's reasonable to hope the new drone will play an important supporting role in disaster rescue.
1.What was the new done initially designed to do?
A.To provide disaster relief.
B.To take air photography.
C.To convey a heavy load.
D.To send a message signal.
2.Where did the researchers get the inspiration?
A.From passenger planes.
B.From small helicopters.
C.From flying creatures.
D.From common drones.
3.What is the drone's biggest advantage?
A.It has a unique shape.
B.It can change its shape.
C.Its arms are flexible.
D.It can reach its target.
4.Which can be the best title for the passage?
A.A Drone: To Fold and Unfold in the Sky.
B.A Drone: To Transport Goods in the Future.
C.A Drone: To Make Selfies for Fun.
D.A Drone: To Make a Difference in Rescue.
Michael Surrell was the last person who should have run into a burning building because he had lung disease. But that didn't stop him. He was reading in sofa when his daughter phoned to say, "The house next door is on fire!" He went to investigate, only to see two women unable to control their emotions on their porch.
"The baby girl's on the second floor!" one of the women cried. At the words, Surrell immediately ran inside. It was completely dark there. Yet, because the house had a similar layout to his, he found the stairs and made it to the second floor. He turned to the right and was met by intense heat. He was already out of breath.
His throat and lungs burned as if he'd breathed fire instead of the smoke in the air. All he could hear was the crackling and popping of burning wood. Then he heard a soft but clear moan (呻吟). He knew it was from the direction of the bedroom. Still unable to see, Surrell fell to his knees on the hot wood floor. He crawled toward the sound, feeling around for any sign of the girl.
Finally,he found the girl and caught her into his arms. He felt the heat of the flames on his cheeks. Turning, he fought through the smoke and ran blindly out of the house. Surrell put Tiara down on the porch. "You have to breathe for her," Someone said to him. He started CPR﹣it was the first time that he'd ever done so. The women stood behind him, praying silently. After he gave five breaths, she opened her eyes and took a breath on her own.
Their eyes met. Surrell hugged her tight and said, "Uncle's got you." Soon after, his throat closed off.
1.How did the two women feel when facing the fire?
A.Confident.
B.Curious.
C.Desperate.
D.Optimistic.
2.Why did Surrell know the moan came from the bedroom?
A.This house had a similar design to his.
B.He often went to see his neighbors.
C.Mr. Surrell had a very sensitive hearing.
D.He could see clearly in the house.
3.What can we infer from the fourth paragraph?
A.The girl was dead when she was found.
B.Surrell lost his sight because of the fire.
C.The girl wasn't breathing when taken out.
D.The women didn't care about the girl.
4.What is the passage mainly about?
A.A girl trapped in a burning house was saved.
B.It is tough to save a girl from a burning building.
C.Two women survived with a girl left in the house.
D.A man risked his life and saved a girl from fire.
If you are planning to take a trip across the United States, and are eager for a hotel, here are four economic ones for you to choose from.
Motel 6 Downtown
Neighboring the Golden Gate Bridge, it's one of the most popular motels in San Francisco with enough free parking spaces.
Check in: 3: 00 p. m. with passports and credit card.
Check out: before 12: 00 noon.
Price for 1 night per room: ﹩140 for two adults, free of charge for two children.
Pets not permitted in.
Tel: 77345984
The Opera Inn
Located in the art district, it's close to the Opera House, with chances to take part in various cultural activities.
Check in: 4: 00 p.m. with passports and credit card.
Check out: before 11: 00 am.
Price for 1 night per room: ﹩179 for two adults, free of charge for one child. No extra bed.
Pets not permitted in.
Tel: 77345244
Amsterdam Hotel
Located in downtown San Francisco, it's a clean and tidy cheap hostel, with only eight minutes' walk to the Chinatown.
Check in: 3:00 p. m, with passports and credit card.
Check out: before 10: 00 a.m.
Price for 1 night per room: ﹩ 106 for two adults, free of charge for two children.
Pets not permitted in
Tel: 72346654
Van Ness Inn
Neighboring the blue sea, it has a quiet beautiful environment. It's a best choice for those who are tired of the noisy downtown.
Check in: 1: 00 p. m. with passports and credit card.
Check out: before 11: 00 a.m.
Price for 1 night per room:﹩118 for two adults,﹩5 for one child
Pets not permitted in
Tel: 72346664.
1.Which do you choose if you want to enjoy free parking?
A.Motel 6 Downtown.
B.The Opera Inn
C.Amsterdam Hotel.
D.Van Ness Inn
2.How much should a couple with a child pay to stay in Van Ness Inn for two nights?
A.﹩482
B.﹩472
C.﹩236
D.﹩246
3.What is this passage intended to do?
A.To introduce hotels' rules.
B.To attract more customers.
C.To compare the prices.
D.To promote the local tourism.
假设你是李华,你所在社区将举办利用暑假到希望小学义务为学生辅导英语的活动。你希望参加此活动。请根据提示用英语写一封申请信:
1. 对此活动的认识;
2. 个人优势;
3. 你的计划。
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。
Dear Sir/Madam,
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours sincerely,
Li Hua
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5处语言错误,每句中最多有两处。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(\)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5处,多者(从第6处起)不计分。
You might have ever been crossed the road to avoid talking to someone you recognize, or you would love to go to a party and talk confidently to every guest. Or maybe you wanted to make more friends and lack the confidence to talk to people you don’t know. You needn’t worry about situation like these if you have good social skills. And they are easy learn. It helps if you do a little advance planning.
Passing through the Atlanta airport one morning, I caught one of those trains that take travelers from the main terminal(主航站楼)to their boarding gates. Free, _______ and cold, the trains run back and forth all day long. Not many people consider them fun, but on this Saturday I heard _______.
At the front of the first car - looking out of the window - were a man and his son. _______ most people on the train were white, dressed for business trips or vacations, the father and son were black, dressed in clothes that were just about as _______ as you can buy.
“Look out there!” the father said to his son. “See that pilot? I bet he’s walking to his plane.” The son extended his neck to look.
As I got off, I _______ something I’d wanted to buy in the terminal. I was _______ for my flight, so I went back and saw that the man and his son had _______ too. I _______ then that they hadn’t been heading for a flight, but had just been riding the train.
“I want to ride some more! This is fun!”
“If not _______, all right,” the father __________, and when a door opened, we all got on.
“Where are all these people going, Daddy?” the son asked. “All over the world, Some are leaving for __________ destinations or arriving at the ends of their journeys.” __________, the father and son shared each other’s company.
Here was a __________ who cared about spending the day with his son and who had come up with this plan on a Saturday morning. It doesn’t cost a cent, yet it is the most __________ thing in the world.
The train __________ speed, and the father pointed something out,and the boy laughed again.
1.A.boring B.strange C.exciting D.broken
2.A.music B.noise C.scream D.laughter
3.A.Although B.While C.When D.As
4.A.traditional B.inexpensive C.attractive D.long
5.A.completed B.needed C.remembered D.refused
6.A.eager B.late C.lazy D.early
7.A.hesitated B.worried C.returned D.regretted
8.A.promised B.realized C.praised D.witnessed
9.A.tired B.upset C.harmful D.costly
10.A.imagined B.relaxed C.replied D.added
11.A.extra B.distant C.rewarding D.curious
12.A.Gratefully B.Disappointedly C.Luckily D.Excitedly
13.A.father B.passenger C.mother D.pilot
14.A.outstanding B.comfortable C.valuable D.interesting
15.A.went off B.set out C.aimed at D.picked up