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1、练:(三)-2022 3醺习IWW阅读以下短文,从每题所给的A、B、C和D四个选项中,选出最正确选项。Bicycle SafetyOperation: Always ride your bike in a safe, controlled manner on campus. Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.Theft Prevention: Always securely lock your
2、bicycle to a bicycle rack-even if you are only away for a minute. Register your bike with the University Department of Public Safety. Its fast, easy, and free. Registration permanently records your serial number (编号), which is useful in the possible recovery of the bike stolen.EquipmentBrakes: Make
3、sure that they are in good working order and adjusted properly.Helmet: Make sure your helmet meets current safety standards and fits properly.Lights: Always have a front headlightvisible at least 500 feet in front of the bike. A taillight is a good idea as well.Rules of the RoadRiding on Campus: As
4、a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15 mph, unless otherwise posted. Always give the right of way to walkers. If you are involved in an acciden
5、t, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.15 ADADC 610 BACBB 1115 DBCDC15 BDCAD 610 CBCAD1115 BACBD 1620 BCACDOne possible version:Dear Tom,How is everything going?These days Im considering a brief trip to
6、 your country in the coming summer holiday. Could you please give me some practical advice to make my trip enjoyable and worthwhile? The following is my expectation and I badly need your advice.Firstly, Id like to take the chance to expose myself to the native life as much as possible. Besides, it w
7、ill be better if the trip covers those world-famous universities across the country. Last but not least, I hope the trip will be within my budget as a student.Many thanks!Yours,Li HuaBicycle Parking: Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycl
8、e parking, and parking in such spots can result in a fine.If Things Go WrongIf you break the rules, you will be fined. Besides, violating rules while riding bicycles on campus, you could be fined for:No bicycle registration. $25Bicycle parking banned. $30blocking the path with the bicycle. $40Violat
9、ion of bicycle equipment requirement. $35Registration of your bicycle may help you.A. find it when its stolenB. get your serial numberC. receive free repair services D. settle conflicts with walkersWhat bike equipment is a free choice for riders?A. Brakes. B. A helmet. C. A headlight. D. A taillight
10、.What should you do when you ride a bicycle on campus?Give the way on the right to walkers.Cycle always at a speed of 15 mph.Ride on posted bicycle paths and sidewalks.Call the police before leaving in case of an accident.Two summers ago I was about to turn fifty and wanted to do something Id never
11、done before. My daughter Bailey thought skydiving (EK伞) would be perfect for me. I can promise you that of all the things I was thinking of doing, jumping out of an airplane never came close to making the list. As I age, I seem to have developed a growing fear of heights.After several requests from
12、my daughter, I finally said yes and she looked almost shocked. I told a friend what we were doing; then we set off.We had a 3-hour drive to the jump site. We drove through some beautiful countryside, but then we passed a small cemetery (墓土也).Then we passed another cemetery and another one. I asked i
13、f so many people died jumping out of airplanes in this area that they needed to keep building more cemeteries to bury all the bodies!As we squeezed into the little plane, I tightly held the right hand of my partner Ronnie. The short ride to altitude was cruel for me. As Bailey stepped to the door, s
14、he looked back at me and said, “Dad, Im sure you can do it! 1 said yes as she rolled out. I immediately looked behind me and said, “Ronnie I am not feeling good! ” He said, Its going to be great.Besides, its too late now anyway., And we jumped out.The next five minutes were some of the most amazing
15、of my life. It was so beautiful and peaceful-except for the parts where I was screaming. I prayed to God for the parachute to open, but mostly I told him how thankful I was for my life and being with me through good and bad.What can we know about the author from Paragraph 1 ?He skydived for the firs
16、t time at the age of 48.He wanted to do skydiving for his 50th birthday.He is less fearful of heights as he gets older.He had never considered attempting to do skydiving.Why did the author mention the cemeteries in Paragraph 2?To tell how determined he was.To show how rough the trip was.To express h
17、ow scared he was then.To prove how lonely the jump site was.What did Bailey do for her father before she skydived?She played a joke with him.She gave him encouragement.She comforted him constantly.She offered him useful guidance.How did the author behave after jumping out of the airplane?He enjoyed
18、himself.He stayed quite calm.He breathed out in relief.He kept fearing for safety.A new keyboard can tell whether you are its owner. The keyboard records information about the typing pattern and sends it to a computer program. The program then checks to see if the pattern matches the right user. If
19、not, an alarm sounds, and the computer locks the typist out. It locks out anyone else, even if the person knows the password. Whafs more, this device needs no batteries. It harvests all the energy it needs from the action of your typing. Besides, the keyboard is also self-cleaning and the keys are f
20、ree of damage from water, oil and dirt.The keys of the new keyboard are made of the same inexpensive plastic that might be found on any other standard keyboard. But instead of being smooth, the keys have millions of tiny plastic nanowires (纳米线)on their surface area to every key, increasing the effec
21、tive contact area between the plastics and fingers. This ensures that theres enough power to run the keyboard as someone types.Liming Dai, a scientist, did not work on the new keyboard, but he thinks the design could be important in getting better performance from a variety of devices. ult could als
22、o be applied to a touch screen, for instance, ” Dai says. “Then smartphones and notepads could harvest energy from the action of someone typing or drawing.5,Future work might make the keyboard even more useful, ” Dai adds. UA later design might build tiny capacitors (电容器) onto the nanowires, “ he su
23、ggests. Capacitors are little devices that temporarily store electric charges. Those might then be LEDs to light a keyboard in the dark.Zhonglin Wang is a co-designer of the new keyboard. His team has built a working model of the keyboard. ulf a company decides to fund its production, this keyboard
24、could be in stores in as little as two years, “ says Wang.How does the new keyboard tell whether you are its owner?By checking the users passwords.By sending alarms to a computer program.By matching the typing pattern to the user.By recording information about the typing pattern.Why are many nanowir
25、es fixed on the surface of the keys?A. To make the keys beautiful. B. To help produce power.C. To make the keys smooth. D. To improve the speed of typing.What is Dais attitude to the new keyboard?A. Unconcerned. B. Positive. C. Doubtful. D. Conservative.What is the best title for the text?A Keyboard
26、s FutureA Keyboard Made of NanowiresA Keyboard Powered by TypingA Keyboard Entirely Owned by YouThe meteor (流星) shower left many people in the community dissatisfied and demanding answers. According to Gabe Rothschild, Emerald Valleys mayor, people gathered in the suburbs of the city, carrying heavy
27、 telescopes, expecting to watch the brightly burning meteors passing through the sky. What they found instead was a sky so brightened by the cityJs lights that it darkened the light of the meteors passing overhead.“My family was so frustrated, admitted town resident Duane Cosby. uWe wanted to make t
28、his an unforgettable family outing, but it turned out to be a huge disappointment.,Astronomers-scientists who study stars and planets-have been complaining about this problem for decades. They say that light pollution prevents them from seeing objects in the sky that they could see quite easily in t
29、he past. They call on people and the government to take measures to fight against it.There is yet a population besides professional and amateur star observers that suffers even more from light pollution. This population consists of birds, bats, frogs, snakes, etc. For example, outdoor lighting sever
30、ely affects migrating birds. According to the International Dark-Sky Association, “100 million birds a year throughout North America die in crashes with lighted buildings and towers.”Countless animal casualties result from the use of artificial lighting. Clearly, people enjoy the benefits of lightin
31、g their evenings, but some scientists think it can be harmful for humans, too. They worry that exposure to light while sleeping can increase persons chances of getting cancer.Emerald Valley is the only one community that is becoming aware of the negative effects of light pollution. For years, Flagst
32、aff, Arizona, has enforced lighting regulations in its city in order to assist astronomers at the Lowell Observatory. Similar efforts have been made worldwide, and a movement is under way to remind us to turn off lights when we are not using them, so that other creatures can share the night.Why were
33、 the people unsatisfied with the meteor watching?It ended up a social outing.The citys lights affected it.The meteors flew past before being noticed.The city light show attracted many people.What do the astronomers complain about?Meteor showers occur less often than before.Their eyesight is failing
34、due to artificial lighting.Light pollution has remained unsolved for years.The government forbids their observation.What is the author concerned about according to Paragraph 4?Birds may take other migration paths.Animals living habits may change suddenly.Varieties of animals will become sharply redu
35、ced.Animals lives are threatened by outdoor lighting.What does the author mainly want to tell us?Saving wildlife is saving us.Great efforts should be made to save energy.Human activities should be environmentally friendly.New equipment should be introduced for space study.阅读下面短文,从短文后各题所给的A、B、C和D四个选项
36、中,选出可以 填入空白处的最正确选项。I have recently been reflecting on the secret of our online success. This website has now been in J for over twelve years and when my eldest son Jeremy 2 the idea, I wasnt sure that at the age of 69, I would be able to 3 strong interest, or maintain the output of readable material
37、s 4 to fill the pages!I am delighted to say that at 80, my enthusiasm remains and with the 5 from a number of friends in the storytelling and magic communities, I am now 6_the next level.I must at this pointsay a big Thank you! ” to our web host Ken Evoy at Site Build It! He has supported us from th
38、e very beginning with 7 help and advice and much of the credit for our 8_.My intention from the start was to _9 a magazine style presentation that was entertaining, and user-friendly. The name The Storytelling Resource Center” has kept me 1 0 and on my toes!Out of curiosity, we 11 the Alexa Traffic
39、Ratings website. We discovered to our amazement and 12 that we were among the top 1% of websites 13 worldwide! This was almost 14 due to Site Build It! And the advice we received from them.Those of you who have been 1_5 visitors over the last few years noticed those well-organized pages with the web hosts 1 6. The success was immediate! We 17 to receive up-to-the-minute advice from them and we are now one of the most visi
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