Imagine you’re standing in line to buy a snack at a store. You step up to the counter and the cashier scans your food. Next, you have to pay. But instead of scanning a QR Code(二维码) with your smart phone, you just hold out your hand so the cashier can scan your fingerprint. Or, a camera scans your face, your eyes or even your ear.
Now, this type of technology might not be far away. As technology companies move away from the traditional password, biometric (生物特征识别的) security, which includes fingerprint, face and voice ID, is becoming increasingly popular.
In 2013, Apple introduced the iPhone 5s, one of the first smart phones with a fingerprint scanner. Since then, using one's fingerprint to unlock a phone and make mobile payments has become a commonplace, bringing convenience to our lives. And since 2016, Samsung has featured eye-scanning technology in its top smart phones, while Apple's new iphone X can even scan a user's face. But despite its popularity, experts warn that biometrics might not be as secure as we imagine. " Biometrics is ideally good in practice, not so much," said John Michener, a biometrics expert.
When introducing the new iPhone's face ID feature, Phil Schiller, Apple's senior vice-president, said. "The chance that a random person in the population could look at your iPhones X and unlock it with their face is about one in a million." But it's already been done. In a video posted on a community website Reddit, two brothers showed how they were each able to unlock the same iPhone X using their own face. And they aren't even twins.
"We may expect too much from biometrics," Anil Jain, a computer science professor at Michigan State University, told CBS News. "No security systems are perfect."
Earlier last year, Jain found a way to trick biometric security. Using a printed copy of a thumbprint, she was able to unlock a dead person's smart phone for the police, according to a tech website Splinter. "It's good to see biometrics being used more," Jain told CBS News, "because it adds another factor for security. But using multiple security measures is the best defense."
1.Which is the latest identification technology in a smart phone according to the passage?
A. Face scanning. B. Eye scanning.
C. QR Code scanning. D. Fingerprint scanning.
2.What is a major problem of the iPhone X's face ID system?
A. It takes too long to unlock the phone.
B. It often fails to recognize its owner's face.
C. Face data can be used for other purposes.
D. Different faces can be used to unlock the same phone.
3.What is Anil Jain's opinion about biometric security?
A. It is as secure as traditional measures.
B. It is perfect without much improvement.
C. It has caused much trouble for the police.
D. It should be used with other security measures.
4.What does the author intend to tell us in this passage?
A. The popularity of biometrics.
B. Security problems of biometrics.
C. Various problems with biometrics.
D. Great changes caused by biometrics.
About 5,000 children die each day due to preventable diseases such as cholera and dysentery (痢疾) , which spread when people use unclean water for drinking or cooking. A lack of water for personal health leads to the spread of totally preventable diseases like trachoma, which has blinded some six million people.
Water troubles also trap many low-income families in a cycle of poverty and poor education and the poorest suffer most from lack of access to water. People who spend much of their time on ill health, caring for sick children, or collecting water at distances averaging 3.75 miles a day don’t have educational and economic opportunities to better their lives.
Agriculture is called the lion's share of freshwater worldwide, using some 70 percent, and industrial uses consume another 22 percent. Water areas have no political borders and nations don't always work together to share common resources, so water can be a frequent source of international conflict as well.
Day-by-day demand keeps growing, further needing water sources, from great rivers to groundwater. “We’re going deeper into debt on our groundwater use,” Postel said, “and that has very significant impacts on global water security. The rate of groundwater consumption has doubled since 1960.”
Some of Earth's groundwater is fossil water created when Earth's climate was far different. Today such water is as limited as petrol. “But we're pumping much of them out faster than ever,” Postel explained. “Humanity's growing thirst also causes a major problem about water and our ecosystems. And that also creates a cost to us, to our sons and to our grandsons, not just to nature.”
1.What does the author mainly discuss in the passage?
A. Water shortage has been a most serious challenge.
B. So many children die of polluted water every day.
C. Diseases should be properly controlled and treated.
D. Wasting water leads to the unrest of the world.
2.Why is agriculture called the lion’s share of freshwater ?
A. Because agriculture is much stronger than industry.
B. Because more people live on the agricultural produce.
C. Because agriculture uses about two-thirds of freshwater.
D. Because nations don’t always work together to save water.
3.According to what Postel said we can know ____________.
A. groundwater is rich for us to use
B. there is no need to dig deep for groundwater
C. we are consuming our next generations’ water
D. we should use river water instead of groundwater
4.What can we infer form the passage?
A. We shouldn’t use water from rivers.
B. We should protect our ecosystems.
C. Water should be distributed equally.
D. Laws should be passed for groundwater.
A video recording from Xinhua (9th, Nov. 2017) showing Arabella Kushner, US President Donald Trump's granddaughter, singing Chinese songs and reciting Chinese literary classics caused another Internet sensation (轰动) in China Wednesday night.
In the video clip, Arabella, wearing a traditional embroidered Chinese dress, greets President Xi Jinping and his wife Peng Liyuan.
The sixyearold sings two songs Our Fields, Beautiful Fields, and My Good Mom. The former, written in 1953 and adored by Chinese teenagers for decades, expresses one's love and affection for the motherland and nature. The latter is a popular nursery rhyme widespread in China.
She also displayed knowledge about Chinese literature by reciting Three Character Classic, a Confucianist volume to educate young children, and two ancient poems of Li Bai, Watching the Fall of Lushan Mountain, and Departing from Baidi City in the Morning.
Xi spoke highly of the child's Mandarin abilities and said her performance deserved an “A Plus”. He said Arabella was already a star in China and hoped she would visit China one day.
Numerous media websites and netizens reposted the video. It has received 2.3 million clicks on Sina Weibo, China's popular social media platform, as of press time.
“What a talented and smart girl she is!” Weibo user Yumeiren said. “I hope she can make more contributions to fostering ChinaUS friendship in the future.”
Earlier this year, during President Xi's visit to the United States, Arabella has already performed for the president and his wife at the Mar-a-Lago resort in Palm Beach, Florida, on April 6. Standing alongside her parents, Arabella sang Jasmine, a Chinese folk song with her brother Joseph.
1.From the passage, we can learn that ________.
A. Arabella once sang Jasmine for President Xi in April alone
B. Arabella has a talent for singing Chinese songs
C. Arabella has some acquaintance with Chinese ancient poems
D. My Good Mom conveys one's love for his or her motherland
2.What does the underlined word in Para.7 probably mean?
A. Preventing. B. Proposing.
C. Protesting. D. Promoting.
3.What is the best title for the passage?
A. Arabella's Contribution to ChinaUS Relationship
B. Trump's Granddaughter Wins Chinese Hearts, Again
C. Trump and His Famous Granddaughter
D. A Little Shining Star in China
Bangkok Destination Guide
Travel in Bangkok is often described as a whirlwind—it’s hot, chaotic, crowded, and full of exotic energy. This popular tourism destination is a city of extremes with majestic temples, floating markets, romantic rooftop restaurants, and a wide range of accommodations to suit every budget. Read through our brief guide to learn about this exciting city and begin planning your journey.
Peak (高峰) Season | Population | Language(s) | Currency | January Climate | July Climate |
November to February | 8,280,925
| Thai
| Thai Baht
| Average high 33.2℃ | Average high 33.2℃ |
Must-See Attractions
Bangkok is sometimes referred to as the “Venice of the East” because of its network of canals, so take a boat tour to see sights like the Khmer wats (僧院) and the riverside houses. While exploring the city, you’ll definitely want to sample some of the street food options—often fresher and more unique than in the surrounding restaurants! To get a dose of Thai culture, visit the Wat Arun, the Grand Palace, Wat Parkeaw, and Wat Pho.
Transportation
There are two airport that serve Bankok, Suvamabhmi Airport and Don Muang Airport, and both are located about 30 kilometers from city centre. Most travelers who fly into Suvarnabhumi take the airport rail link to get downtown. The most important train station is the Hua Lamphong Station, and railway lines extend in all directions. It’s not a good idea to travel around Bankok by car since traffic is very congested.
Recommended Restaurants
Food is a big deal in Thailand. and there are plenty of cheap eats, high-end restaurants, and street food delights to keep your taste buds satisfied every meal.
Restaurant | Cuisine | Location | Price | Notices |
Lung Yai
| Isaan
| Din Daeng
| Budget
| Off the beaten path and never touristy |
Issaya Siamese Club | Thai | 4 Soi Sri Aksorn, Chuaphloeng Rd. | Pricey | Order a mix of chef recommendations to try something new |
Bankara Ramen | Japanese | 32/1 Sukhumvit Soi 39 | Budget | Try the signature ramen with chashu |
1.Which month is in the peak season to travel in Thailand?
A. March. B. July.
C. October. D. December.
2.What does the underlined word “its” refer to?
A. Venice’s. B. Bangkok’s.
C. Khmer’s. D. Thai.
3.Why does the author think travelling around Bangkok by car is a bad idea?
A. It’s easy to get to the city center.
B. It’s easy to reach he railway station.
C. It’s easy to meet traffic jam.
D. It’s easy to go all directions.
4.Where will you go if you want to try expensive Thai food?
A. In Din Daeng.
B. In Issaya Siamese Club.
C. In Lung Yai.
D. In Bankara Ramen Restaurant.
假定你是李华，得知美国外教Peter最近经常头痛，西医疗效不佳。请你给他写一封电子邮件，推荐中医治疗，简介中医的优点（如副作用小、价格低等），愿意帮助，并期待他早日康复。
注意：1. 词数100左右；2. 可以适当增加细节，以使行文连贯。
Dear Peter,
I’m sorry to learn that …
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
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。
My name is Li Ming, a student studied in Ganzhou No. 18 Middle School. I am eager become a volunteer in your group and I can work till my next term begins. I have a real talent on singing. I get the first prize in the singing competition in our school last year. However, I can teach children how to sing songs. Besides, I play the piano very well, that will help a lot in my work. I am warm-hearted and always be ready to help. Helping other people makes myself happy. I believe I can make friend with the children. I hope I am fortunately enough to be a member of your group.
