Chiang Mai has just been named the top city in Asia as well as ranked (排名)second for the World's Best Cities in the readers' survey of Travel + Leisure World's Best Awards 2016. The influential magazine also ranked Bangkok at No. 5 in Asia and No. 14 in the world.
Readers were asked to judge Asian destinations on various factors (因素)including the local culture, food. shopping and landmarks as well as the friendliness of the people and overall value for money. The cities were then ranked out of 100 will) Chiang Mai scoring 91.25 . The city was praised by the Thavel + Leisure readers for its " peace and quiet" and "popular restaurants, historic temples and large markets” as well as for all the conveniences of a major city. Bangkok had a score of 88.96 and was praised for its arts scene and fashionable hangouts.
Yuthasak Supasorn, Governor of the Tourism Authority of Thailand (TAT) said, "Chiang Mai has always been popular with local and international tourists, so it's good to see that the city is receiving more international favorable receptions. The lovely weather and attractive culture make Chiang Mai a wonderful retreat the whole year round, and as it's a food and arts centre, there's always something to enjoy in the city as well as adventures in the surrounding hills."
Chiang Mai has also been ranked highly on a recent list of best cities (or digital nomads (数字游民)—people who work online and do not need to be tied to an office. The Nomad List ranks the best cities based on living costs, Internet speed t weather, safely and more than 50,000 other data (数据)points.
1. According to Travel + Leisure, Chiang Mai ranked___ in Asia.A.No.1. | B.No. 5. | C.No. L4. | D.No. 100. |
A.The variety of cultures. | B.The beliefs in money. |
C.The way of making friends. | D.The number of destinations. |
A.The local people are friendly. | B.Il's Asians most popular city. |
C.It's a world tourist attraction. | D.There're adventures downtown. |
A.A speech. | B.An advertisement. |
C.A scientific journal. | D.A news report. |
相似题推荐
【推荐1】Top Family Travel Destinations
Walt Disney World, Florida
Walt Disney World is where the magic happens. There’s so much to explore. Visit Magic Kingdom for amazing rides including Space Mountain. Take a family picture in front of Cinderella’s Castle. Book a character meal and eat lunch with your children’s favorite characters,
Tip: Visit Walt Disney World between March 2 and May 30 for the Epcot International Flower & Garden Festival.
Williamsburg, Virginia
Have fun and go on wild on all kinds of family adventures in Williamsburg, Virginia. Spend the day at Busch Gardens, learn the chemistry of making glass at the Jamestown Glasshouse. Looking for an exciting rush? Try the Ape Treetop Adventure Course and fly over Williamsburg’s tree tops.
Honolulu, Hawaii
Hawaii has a lot to offer to your family. Try a new water sport, go diving and snorkeling and take pictures by the beautiful Manoa Falls. Then, take a private tour, visit the Hanauma Bay Nature Preserve and learn more about history at the Battleship Missouri Memorial, the Diamond Head State Monument and the Honolulu Museum of Art.
Ocean City, Maryland
Take this year’s summer vacation in Ocean City, Maryland. Spend quality time with your family listening to live music, playing mini golf, riding bikes together and joining in water sports. Looking for even more fun for the kids? Visit the Pirate Adventures of Ocean City, Baja Amusements, the Candy Kitchen and the Bahia Marina.
1. What can we do in Walt Disney World?A.Visit the Candy Kitchen. | B.Fly over Williamsburg’s tree tops. |
C.Visit the Diamond Head State Monument. | D.Take photos in front of Cinderella’s Castle. |
A.In Space Mountain. | B.In Baja Amusements. |
C.At the Jamestown Glasshouse. | D.In the Hanauma Bay Nature Preserve |
A.Mini golf. | B.Water sports. | C.Bike riding. | D.Character meals. |
A.Ocean City is most pleasant in winter. |
B.Honolulu offers no chance to learn more about history. |
C.Williamsburg is a wonderful place for family adventure lovers. |
D.June is the best time to enjoy the Epcot International Flower &. Garden Festival. |
A.Travel. | B.Sports. | C.Economics. | D.Literature. |
【推荐2】Tips for cutting the cost of Travel
Whether for pleasure or business reasons, it is normal for us to sometimes want to pack our bags, hit the road, and head to a new destination. While traveling is an exciting experience, it is not without its expenses and those expenses are capable of drilling a hole in one’s pocket if not properly planned out beforehand.
·
·Choose a cheaper means of transportation. While everyone likes to fly to their travel destination for ease and speed, flying isn’t the only transport option available. Depending on where you’re living and where you are going, you can always select public transport.
·Don’t use hotels.
·Use a travel credit card. When you apply for these cards, you can control opportunities like signing-up bonuses (红利), most of which are offered by airline credit cards.
A.Surf the website for tickets |
B.Save on airfare (机票钱) |
C.If you’re a traveler looking to reduce the travel costs |
D.Below are several tips for you to cut the cost of travel |
E.These bonus points can help you increase a lot of miles |
F.Staying at someone’s house can be cheaper than booking a hotel |
G.So research what’s available and choose the best means of transportation for your budget |
【推荐3】9 days for only $839 (children: half of the price)
Price covers: international airfares, local transportation, hotel expenses, all meals, daily tours and visas for US citizens.
Our address: No. 178, Zhongguancun Street, Haidian District, Beijing
Phone number: 010-62123855
Day 1-3 Beijing
Our guide will pick you up at Beijing airport and take you to the hotel near Wangfujing (Address: No. 72, Wangfujing Road, 010-86370248). Your first stop is Tian’anmen Square. From there you will enter the Forbidden City. You will then go to the Temple of Heaven, the Great Wall and the Ming Tombs. We will arrange a delicious meal in a delicate restaurant followed by a lively acrobatic show. You will finish the 3-day tour after having a glimpse at the Bird’s Nest.
Day 4-6 Xi’an
In the morning, you will take a flight to Xi’an. A visit to the great Terracotta Warriors and Horses Museum will start your 3-day tour. You will visit the Big Wild Goose Pagoda, the City Wall and the Great Mosque. Later in the afternoon, you will meet a local family, which will introduce you to the life of the local people. You will relax in the Red Star Hotel for 3 nights (Address: No. 165, Wenyi Road, Xi’an, 029-5670054).
Day 7-8 Shanghai
Our guide will pick you up at Pudong Airport and take you to the hotel for 2-night stay (Address: No. 24, Nanjing Road, 021-62458585). Our visit begins at the Shanghai Museum and the beautiful Yuyuan Garden. Afterwards, you will have some free time to walk along the Bund and buy souvenirs on Nanjing Road.
Day 9 Leave for Beijing
After breakfast at the hotel, you will take a taxi to the airport for Beijing flight. Our trip comes to an end at this time.
1. Which of the following is the correct route for the 3-day tour in Beijing?A.Tian’anmen Square - the Forbidden City – the Temple of Heaven – the Great Wall |
B.the Forbidden City – the Bird’s Nest - Tian’anmen Square – the Great Wall |
C.Tian’anmen Square – the Temple of Heaven - the Forbidden City – the Great Wall |
D.the Bird’s Nest - Tian’anmen Square – the Temple of Heaven – the Great Wall |
A.$839 | B.$2097.5 |
C.$1258.5 | D.$2517 |
A.learn many things about the local life and local people |
B.visit many surprising royal tombs, such as the Ming Tombs |
C.watch lively acrobatic show after a delicious meal |
D.have some free time to enjoy the beautiful Bund |
A.encouraging Americans to apply for a visa |
B.offering a free ticket booking service to tourists |
C.helping foreigners to really understand China |
D.attracting foreigners to go travelling in China |
【推荐1】Because most Japanese people don’t really like the idea of having a roommate, a lot of these young people end up living alone, including young women. While Tokyo is much safer than large cities in many other countries, crimes do happen, and criminals often consider young women who live alone to be easy targets.
To help address this problem, and also to put the minds of female tenants (房客) at ease, apartment management company Leo Palace 21 has developed what it calls the Man on the Curtain system.
Using a projector (投影仪) controlled by a smartphone, Man on the Curtain throws an outline of a man onto your curtains, so that when people outside look at your windows, there will appear to be a guy inside, thus masking that you live alone. If you’re wondering how that’s better than just putting a cardboard cutout (剪贴画) by your window, Man on the Curtain is full-motion, projecting videos of actual actors for an extremely lifelike look.
Currently, the system has 12 different options, including such frightening routines as a bodybuilder working out with dumbbells, and a sports fan swinging a baseball bat around, which seems like it could double as a fitness video that you could do yourself together with your shadowy protector.
Since it’d be easy to infer that a short set pattern is a fake, each video is roughly 30 minutes long, with a variety of motions.
Granted, some of the options, such as the man vacuuming or playing guitar, aren’t going to be as effective if a would-be criminal is close enough to the window to notice the lack of sound. But the images themselves are very convincing.
1. Which of the following statements is right?A.Tokyo is a city of no crime. |
B.Ladies are easily robbed in Japan. |
C.Only young ladies enjoy being alone. |
D.Leo Palace 21 works on apartment affairs. |
A.It’s a popular mobile APP. |
B.It can find criminal behaviors. |
C.It plays a vivid cartoon for tenants. |
D.It’s mainly designed for female living alone. |
A.Cutouts are better than the system. | B.Cutouts aren’t effective at all. |
C.People may think you are not alone. | D.You can watch videos when alone. |
A.It may be improved by the company. | B.Its video will last longer. |
C.Its motions aren’t vivid enough. | D.It won’t be well received. |
【推荐2】A series of outdoor basketball games in southwest China’s Guizhou province attracted more than 50 million online viewers in only four days. This is the second time that Guizhou bas held the “Gorgeous Countryside” basketball tournament, which is an amateur inter-village basketball tournament.
The final of this year’s tournament took place in Taipan Town, Taijiang County on Tuesday night. Over 10,000 people came here to watch it. For the winning team, the prize was only a cow weighing 650 kilograms, and for the team in second place, two goats.
Started across the province in 2021, the “Gorgeous Countryside” tournament grew rapidly with more local sports fields built. And across Guizhou province, almost every town has a basketball field. “We used to play on dirt ground, and made baskets by ourselves. With the development of sports facilities in the countryside, we now have a true basketball field in our village and can train better,” said Wang Shenglong, a member of the Taijiang County team. Since April, more than 4,200 basketball games have been organized in Guizhou, none of which would have happened if it weren’t for the fact that more basketball fields were built for the public.
In 2018, the basketball games were included in the Chi Xin Festival, which celebrates harvest on the sixth of June on the lunar calendar. Since then, thanks to the introduction of the “Gorgeous Countryside” tournament, Taipan Town has attracted many not only from nearby, but some who need to drive all the way from Guiyang, the provincial capital more than 200 kilometers away, to experience the unique atmosphere in Taipan.
The tournament is an example of local development, and will promote local development further. The games are liked by the locals more than ever, and will hopefully encourage them to build a brighter future.
1. What do we know about the tournament?A.About 10,000 people watched it online. | B.It was held in Guizhou for the first time. |
C.It was popular but lasted only four days. | D.The participants were not professional players. |
A.More basketball fields were built. | B.The prize was attractive to the villagers. |
C.The locals paid more attention to health. | D.Villagers had more free time than before. |
A.They are inspired to work harder. | B.They will have a different lifestyle. |
C.They can make more money from it | D.They can learn to play basketball for free. |
A.Health. | B.Education. | C.Sports. | D.Science. |
【推荐3】Research shows that the average high school student will study four hours per week for any major test. The outcome of this four hours of study varies from A to F, which means that in high school grades are strongly determined by intelligence since everyone studies the same amount of time.
But college is different. Most of the students are highly intelligent and each has plenty of time for self-study. To score high on any test, a college student has to work hard and, probably more importantly, know how to use his or her time most efficiently. The problem is that your study habits formed in high school may make you unable to study well in college because you have never experienced what it takes to perform at the college level. That is why the freshman year is the hardest year for all college students.
Based on my extensive observation of student performance on college tests, I recommend the following study time per test: 6 hours per week for an A, 4 hours for a B, 3.5 hours for a C, 2.5 hours for a D and 0 hours for an F. An hour of study is defined as studying for 45 minutes and a break of 15 minutes. Ten hours of continuous study without a break is defined as one hour of study. The brain does not process and store information the way students prefer studying. Occasionally, some succeed by studying at the last minute, but they are exceptions to the rule.
Research also suggests that the slowest 10 percent of the students may need 5 to 6 times as much time to learn the same material as the fastest 10 percent. Each person is very likely to have strengths and weaknesses. Overcoming your weakness increases your strength.
1. According to the writer, the reason why high school students get different test results is that________.A.some students work harder than the rest of them |
B.some students have good study habits while others do not |
C.their intelligence varies from person to person |
D.their teachers teach them in different ways |
A.they have to take a lot of courses at the same time |
B.they are too anxious to score high on all tests |
C.they don’t know yet how to study at the college level |
D.they feel worried among so many intelligent people |
A.2 hours. | B.3 hours | C.4 hours | D.5 hours |
A.a high school student | B.a college teacher |
C.a high school teacher | D.a college student |
【推荐1】Julie boergers, Ph.D a sleep expert from the Bradley Hasbro Children's Research Center, recently led a study connecting later school start times to improved sleep and mood in teens.
"Sleep deprivation is common among teenagers, with potentially serious impacts on mental and physical health, safety and learning.Early high school start times contribute to this problem,"said Boergers."In this study, we looked at whether a delay in school start time would change students' sleep patterns, sleepiness, mood and caffeine(咖啡因)use."
Beorgers' team conducted the School Sleep Habits survey among boarding students attending an independent high school both before and after their school start time was experimentally delayed from 8 to 8:25 a.m.during the winter term.The delay in school start time led to a significant increase (29 minutes)in sleep duration on school nights, with the percentage of students receiving eight or more hours of sleep on a school night jumping from 18 to 44 percent The research found that younger students and those sleeping less at the start of the study were most likely to benefit from the timetable change.Daytime sleepiness, low mood and caffeine use were all significantly reduced after the delay in school start time.The later school start time had no effect on the number of hours students spent doing homework, playing sports or taking part in activities outside class. And once the earlier start time changed back during the spring term, teens reverted(恢复)back to their original levels.
Beorgers said that these findings are important for public policy."The result of this study add to a growing body of research showing important health benefits of later school start times for adolescents, " she said, " and we have students who are more alert(机敏的), happier, better prepared to learn, and aren't dependent on caffeine and energy drinks just to stay awake in class."
1. What does the underlined phrase "this problem" in Paragraph 2 refer to?A.Lack of sleep. |
B.Mental health. |
C.Students' safety. |
D.Taking energy drinks. |
A.Students had less time playing sports. |
B.Young students became sleepier. |
C.More students slept longer. |
D.Students got a bad mood. |
A.It helps form good habits. |
B.It relates to what students learn. |
C.It increases students' learning interest. |
D.It may have an effect on a public policy. |
A.A science journal. |
B.A history book. |
C.A fashion magazine. |
D.A school yearbook. |
A position is now open for a Research Operations Manager(ROM) to support our growing research team at the new laboratories in Hatfield,due to open in the autumn of 2010.
Reporting to the Director,you will help set up and run the technical and scientific support services of our new laboratories now under construction.You will be expected to provide expert knowledge about and be in charge of all areas of ALRL’S Health and Safety,and to communicate (沟通)with support employees at ALRL’S laboratories based at University College London.Working closely with scientists and other operations and technical employees,you will manage a small number of research support employees providing services to help with the research activities to be carried out at the new laboratories.
![](https://img.xkw.com/dksih/QBM/2014/4/18/1566912951279616/1566912953556992/STEM/c605a438845d49048975ecd26dc54b8f.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2014/4/18/1566912951279616/1566912953556992/STEM/afb05fd4c6f94b2eaa42a2abeb560c0b.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2014/4/18/1566912951279616/1566912953556992/STEM/afb05fd4c6f94b2eaa42a2abeb560c0b.png?resizew=63)
Candidates(申请人) will have experience of both management and research support/technical services.Knowledge of research operations and excellent communication skills are necessary. Education to degree level is also desirable.
If you are interested in this position,please send your CV(简历)to Alex London Research
Laboratory,University College London,Hatfield,London,W1E 6B7 or by email to ALRL@alex.co.uk.
For more Information.please visit www.alex.co.uk.
1. What can be learnt about the new laboratories from the text?
A.They have not yet been set up. |
B.They are in Hatfield,Australia. |
C.They belong to University College London. |
D.They are new workplaces for Australian researchers only. |
a. To carry out research activities
b. To be in charge of AlRL’s Health and safety
c. To help run the technical and scientific support services
d. To manage a small number of research support employees
A.a,b,c. | B.a,b,d. |
C.b,c,d. | D.a,c,d. |
![](https://img.xkw.com/dksih/QBM/2014/4/18/1566912951279616/1566912953556992/STEM/c605a438845d49048975ecd26dc54b8f.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2014/4/18/1566912951279616/1566912953556992/STEM/afb05fd4c6f94b2eaa42a2abeb560c0b.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2014/4/18/1566912951279616/1566912953556992/STEM/afb05fd4c6f94b2eaa42a2abeb560c0b.png?resizew=63)
A.The technical skills of a would—be ROM. |
B.The practical experience of a would—be ROM. |
C.The personal information of a would—be ROM. |
D.The necessary requirements for a would—be ROM. |
A.To describe the job of a ROM. |
B.To provide information about ALRL. |
C.To announce an open position at ALRL. |
D.To make known the opening of the new laboratories. |
【推荐3】NEW YORK—Women are now as likely to use the Internet as men--about two-thirds of both genders(性别)--yet a new study shows that gaps remain in what each sex does online.
American men who go online are more likely than women to check the weather, the news, sports, political and financial information, the Pew Internet and American Life Project reported Wednesday. They are also more likely to use the Internet to download music and software and to take a class.
Online women, meanwhile, are bigger users of e-mail, and they are also more likely to go online for religious information and support for health or personal problems.
“For men, it's just, 'Give me the facts',” said Deborah Fallows, who wrote the report based on six years of Pew surveys. “For women, it's 'Let's talk about this. Are you worried about this problem? ' It’s keeping in touch and connecting with people in a richer way.”
About two-thirds of the 6,403 adults surveyed by Pew during 2005 said they use the Internet. By gender, it was 68 per cent of the male respondents(调查对象), and 66 per cent of the female participants-a statistically insignificant difference given the study's margin of sampling error (误差幅度) of plus or minus 2 percentage points.
In 2002, by contrast, the gap was slightly larger: 61 per cent vs. 57 per cent.
The surveys find that for many activities, such as getting travel information or looking up a phone number, men and women are equally likely to use the Internet.
1. Where can we read the passage?A.A daily paper. | B.A magazine. | C.An advertisement. | D.A survey. |
A.Checking the sports information. | B.Downloading music. |
C.Taking a class. | D.Getting travel information. |
A.Men care about facts while women don't care about facts. |
B.Men pay more attention to the result while women the process. |
C.Men don't like to communicate with people while women like to connect with people. |
D.Men are cold while women are enthusiastic. |
【推荐1】My editor, Michelle, was at a birthday party for her son’s friend recently, when the mom mentioned a company she liked called Joymode. Minutes later, an ad for Joymode appeared on Michelle’s Facebook news feed. When she told me about it, we both wondered: Does Facebook really listen to our conversations to serve us ads?
“I swear I think you guys are listening.” That’s how CBS This Morning host Gayle King put it when she spoke with Adam Mosseri who heads up Instagram, which is owned by Facebook. “Can you help me understand how I can be having a private conversation with someone about something I’m interested in seeing or buying, and an ad for that will pop up on my Instagram feed,” King asked. “I haven’t searched for it. I haven’t talked to anybody about it.”
The truth is, Facebook tracks us in ways many of us don’t even realize and is so good at it, we think it’s monitoring our conversations. Instead, it uses complicated demographic and location data to serve up ads. They put all sorts of indirect evidence together, and you’re marketed to as if they’re listening to your conversations. Remember that Facebook can track what you do on other websites and apps that use Facebook plugins, login and apps.
Most of us know that every time we like a post, leave a comment and tag a friend, that gives Facebook even more information to serve us ads. Every check-in, every comment is more grist for the mill.
There are steps we can take to limit Facebook’s tracking, but face it--if you’re using the Facebook app and interacting with people, Facebook can get most of everything they need. Even if you stop using it, Facebook will still keep tabs on you. Even when we clearly exercise all location controls, Facebook still learns the locations we visit and exploits it for ads.
1. What is puzzling Michelle and Gayle?A.Whether Facebook really listens to their conversations. |
B.Whether they always receive ads from Facebook. |
C.Whether they can have a private chat on Facebook. |
D.Whether Facebook provides dependable information. |
A.Sincere. | B.Useful. | C.Simple. | D.Convenient. |
A.By listening to your conversations. | B.By predicting your favors. |
C.By collecting a lot of data. | D.By reading your text messages. |
A.You won’t be lost with your Facebook. | B.Facebook affects a person’s private life. |
C.You have no secrets on Facebook. | D.It’s hard to stop Facebook tracing you. |
【推荐2】The fast spread of the virus has led most Chinese citizens to wear face masks in public to help reduce infections. The Beijing-based Hanwang Technology Ltd. says it has created a new facial recognition system that is the first to effectively identify people even if they are wearing masks.
China is recognized as a world leader in the development of artificial intelligence and facial recognition system. The new system is based on the existing technologies developed over the past 10 years.
“When wearing a mask, the recognition rate can reach about 95 percent, which can ensure that most people can be identified,” Hanwang’s vice president, Huang Lei, said. He added that the system’s success rate for people not wearing a mask is about 99.5 percent. However, the new system struggles to identify people wearing both a mask and sunglasses. “In this situation, all of the key facial information is lost. In such cases recognition is tough,” Huang said.
Hanwang is now selling two main kinds of products that use the technology. One performs “single channel” recognition and the other is a “multi-channel” recognition, which can identify individuals in a crowd of up to 30 people “within a second”.
Huang said officials can use Hanwang’s technology to compare images with ministry (部门) records on individuals in order to identify and track people as they move about. The system can identify crime suspects (嫌疑人), terrorists or make reports or warnings, he added.
While some citizens have expressed opposition to such tools, more people seem to have accepted the methods as a way to deal with the current health emergency.
So far, Huang says most interest in the new system has come from within China. But he sees the interest likely expanding if the virus continues to spread and the use of face masks increases.
1. What do we know about the new facial recognition system?A.It has no relation to the existing tech. | B.It is being used both at home and abroad. |
C.It can record people’s temperature. | D.It can be used for many purposes. |
A.international companies | B.colleges and universities |
C.the Ministry of Public Safety | D.the Ministry of Manpower |
A.Supportive. | B.Disapproving. | C.Uncaring. | D.Doubtful. |
A.To show China’s technological advances. | B.To introduce a newly developed system. |
C.To demonstrate the innovation of China. | D.To advertise a new tech-based product. |
【推荐3】Constantly regret spending too much time on your phone but just cannot stop? You are not alone. Here are five tips from Prof. Mark Griffiths, psychologist and behavioral addiction expert at Nottingham Trent University to help you live well with your phone.
Step it down gradually
The urge to check your phone can become reflexive and habitual. For some, going a few minutes without checking their phone is difficult. If this sounds like you, try to go 15 minutes without doing it. Once you realize this is possible, increase the length of time you avoid checking to 30 minutes, an hour, and then a few hours, or a day.
Monitor usage
Download an app that will tell you how much time you're spending online. This could make you aware of a problem—the first step to a solution.
Buy an alarm clock
Don’t use your phone as an alarm, or you might be tempted(诱惑) to check texts and emails last thing at night and as soon as you wake up. Instead, ban phones from the bedroom. Designate bedtimes and mealtimes as smartphone-free zones. Consider buying a clock, so you're no longer tempted by emails and texts when you check the time.
Spring clean your contacts
How many online friends do you actually speak to? Reduce alerts and distractions by removing contacts on social networking sites, deleting unused apps, and unsubscribing from groups that offer little benefit. Consider deleting any games that are taking up a lot of your time.
Learn to wait
Be mindful of the benefits of not regularly checking your phone. People who react to messages as they arrive tend to write longer responses than those who wait and deal with them all as a block. Waiting will gain you time to spend on other activities.
1. According to the passage, which of the following can help ban phones from the bed ?A.Monitoring usage. | B.Using a clock. |
C.Cleaning contacts. | D.Learning to wait. |
A.games take up more time than other apps |
B.reacting to messages in time is important |
C.people are often tempted to use cell phones |
D.people shouldn’t check emails by cell phones |
A.introduce ways to manage phone usages |
B.emphasize the harm of using cellphones |
C.persuade readers to get rid of cellphones |
D.explain multiple functions of cellphones |