1 . China has set new rules limiting the amount of time children can play online games. The rules limit children to just three hours of online game playing a week. That is one hour between 8 p. m. and 9 p. m. on Friday, Saturday and Sunday most weeks.
Li Zhanguo has two children aged 4 and 8. Even though they do not have smartphones, they enjoy playing online games. Like many other parents. Li is happy with new government rules. But experts say it is unclear if such policies can help prevent addiction to online games. Children might just get addicted to social media instead. In the end, experts say, parents should be the ones to set limits and support good practice.
There has been a growing concern in China about gaming addiction among children. Government reports in 2018 found that about one in ten Chinese children were addicted to the Internet. The new rules are part of an effort to prevent young people from spending too much time on unhealthy entertainment. That includes what officials call the “irrational fan culture”
Under the new rules, the responsibility for making sure children play only three hours a day as largely on Chinese gaming companies like Net Ease and Ten cent. Companies have set up real-name registration systems to prevent young users from going past game time limits. They have used facial recognition technology to check their identities. And they have also set up a program that permits people to report what is against the law. It is unclear what punishments gaming companies may face if they do not carry out the policies. And even if such policies are performed, it is also unclear whether they can prevent online addiction.
A specialist treating Internet addiction expects about 20 percent of children will find ways to break the rules by borrowing accounts of their older relatives and find a way around facial recognition. In his opinion, short-video alps such as Douyin and Kuaishou are also very popular in China. They are not under the same restrictions as games.
1. When can children play games according to the new rules?| A．Between 8 p. m. and 9 p. m. On Friday. | B．Between 8 p. m. and 9 p. m. On Tuesday. |
| C．Between 10 p. m. and 11 p. m. On Saturday. | D．Between 10 p. m. and all p. m. On Thursday. |
| A．the new rules can stop children’s addiction to social media |
| B．companies are more responsible for kids ‘ obeying the rules |
| C．the new rules will help prevent children playing online games |
| D．parents play a greater part in limiting the time of online games |
| A．Design an advanced program. | B．Use facial recognition systems. |
| C．Set up real-name registration systems. | D．Borrow accounts of their older relatives. |
| A．Rules Limiting Short-video alps | B．Rules Limiting Video Game Time |
| C．Rules Banning Irrational Fan Culture | D．Rules Breaking Addition to Social Media |
2 . A gene variant (变体) that causes the “alcohol flush (脸红)” reaction increases the risk of heart disease by causing inflammation of blood vessels (脉管), especially in drinkers. Around 8 percent of the world’s populations has a gene variant called ALDH2*2 that impairs the body’s ability to break down alcohol and causes unpleasant symptoms such as flushing soon after people drink. Now, researchers have shown why this change also raises the risk of heart disease.
“We are trying to understand why ALDH2*2 is associated with a higher risk of coronary arte (冠状动脉) disease at a cellular (细胞的) level,” says Hongchao Guo at Stanford University in California.
The ALDH2*2 gene encodes one version of the enzyme (酵素) alcohol dehydrogenase (脱氢酶), which breaks down the toxic acetaldehydes (乙醛) produced when alcohol is metabolized (代谢), and also mops up other harmful substances known as free radicals.
The gene variant also impairs the growth of new blood vessels. “That means that when there is a heart attack, when there is a need of blood vessel growth, carriers have less ability to generate new blood vessels,” says Guo.
The team found that an existing diabetes (糖尿病) drug called empagliflozin may reduce these harmful effects in people with ALDH2*2 who drink a lot of alcohol. But for Wu, the take-home message is clear. “If you’re missing this enzyme, try not to drink,” he says. “If you drink consistently, you are at much higher risk of heart disease, hypertension, diabetes and cancer.”
Given its many negative consequences, there has been debate about why this change spread and became common, today being found in more than a third of people of cast Asian origin.
“My only explanation is that if you are missing this enzyme, you tend to drink less and there’s therefore less chance of you becoming alcoholic,” says Wu.
1. Which of the following may be caused by “alcohol flush”?| A．Heart disease and high blood pressure. | B．A gene variant called ALDH2*2. |
| C．Inflammation of blood vessels. | D．Diabetes and cancer. |
| A．Exiting diabetes drug can help people witALDH2*2. |
| B．People with ALDH2*2 shouldn’t drink alcohol. |
| C．People with ALDH2*2 have less chance of becoming alcoholic. |
| D．Drinking alcohol can bring about diabetes and cancer. |
| A．Diabetes drug can free people with ALDH2*2 of alcohol flush. |
| B．If you are missing this enzyme, you will easily become alcoholic. |
| C．People with ALDH2*2 tend to suffer from cancer. |
| D．More than a third of people of cast Asian origin may be affected by ALDH2*2. |
| A．To explain the impact of genetic variant causing the “alcohol flush”. |
| B．To introduce ways to stop drinking alcohol. |
| C．To introduce dangers of drinking alcohol. |
| D．To persuade people to get rid of drinking alcohol. |
3 . The art of living is to know when to hold fast and when to let go. Many people
Surely we ought to hold fast to life, for it is
We remember a beauty that
A recent experience re-taught me this truth. I was
One morning, I had to have some additional tests. The required machines were located in a building at the opposite end of the hospital, so I had to be
As we
I looked to see whether anyone else enjoyed the sun’s golden glow, but everyone was
Never too busy for the wonder and the awe of life. Embrace each hour,
| A．take | B．put | C．make | D．get |
| A．closed | B．tight | C．open | D．smooth |
| A．amazing | B．surprising | C．frightening | D．frustrating |
| A．gossip | B．fact | C．message | D．truth |
| A．faded | B．ran | C．escaped | D．jumped |
| A．tackled | B．reflected | C．failed | D．succeeded |
| A．hospitalized | B．transferred | C．exchanged | D．delivered |
| A．rolled | B．wheeled | C．pushed | D．pulled |
| A．jumped | B．turned | C．disappeared | D．emerged |
| A．horrible | B．terrible | C．awesome | D．shocking |
| A．smiling | B．hurrying | C．trembling | D．lying |
| A．indifferent | B．patient | C．innocent | D．excellent |
| A．useful | B．expensive | C．valueless | D．precious |
| A．strike | B．hit | C．seize | D．use |
| A．accept | B．give up | C．stick to | D．cope with |
4 . A talented teen painter in Waterbury is helping her very sick father with her love of art. The 15-year-old girl from Waterbury could become a well-known artist one day. For now, though, part of her love for painting is the chance to help her dad, who’s ill. “It’s kind of like an ache-a heartbreak,” she said. “You never want to see one of your loved ones get hurt. ”
Her father is suffering from type-one diabetes (糖尿病) and is having trouble affording his mounting medical bills. “I’m suffering from heart disease, and blindness from my diabetes,” her father said. Angie has decided to put her talent as an artist to good use.
On Saturday, Sept. 23 from noon to 4 p. m., she’s hosting her own one day art exhibition (展览) to sell her paintings and raise money mainly for her father’s medical bills. “Angie’s Art Exhibition” will be at the North End Recreation Centre, located at 262 North Main Street in Waterbury. She’s also using it to help the Fairfield Animal Shelter. Angie loves animals—you see that on many of her paintings.
This isn’t the first time Angie has put her paintbrush to good use helping others. Her mother tells News 8 that Angie has also used her work to help her community: a local family who lost their father, and children who needed school supplies.
“She has an angelic heart. If there were more people like her in the world, there wouldn’t be so much chaos (混乱) and hate. I just look up to her and say ‘I’m very proud of you,’ ”her father said.
“My dad’s a great person. Though he goes through this, he still loves me and supports me in any way he can. It makes me feel important, “she said.
1. What is the main reason why Angie is hosting her own art exhibition?| A．To show her talent as an artist. | B．To raise money to treat her father. |
| C．To sell her paintings to art collectors. | D．To support the Fairfield Animal Shelter. |
| A．He expects her to become a world-famous artist. |
| B．He takes pride in her and considers her to be an angel. |
| C．He is disappointed in her for not concentrating on study. |
| D．He thinks she should focus on helping him instead of others. |
| A．Artistic and caring. | B．Humorous and kind. |
| C．Independent and proud. | D．Knowledgeable and helpful. |
| A．It’s never too late to learn. |
| B．Study first and play afterwards. |
| C．The company of parents is important to children’s development. |
| D．Determination and creativity can be powerful tools to help those in need. |
5 . Caffeine (咖啡因) is linked to lower body mass index (BMI) and reduced risk of type 2 diabetes (糖尿病). Genetic differences in how people metabolise (代谢) caffeine may influence how overweight they are, but this doesn’t mean drinking more coffee will make you slimmer.
Genetic evidence indicates that higher levels of caffeine in a person’s blood may be linked with lower weight. But people shouldn’t assume that drinking more coffee will be a route to weight loss, says Dipender Gill at Imperial College London, who helped carry out the study. Caffeine is the most widely used psychoactive (对精神起作用的) substance, with many people consuming much coffee or caffeinated soft drinks a day.
Numerous studies have previously suggested that caffeine consumption is linked with lower weight. But these were mainly observational studies, which recorded people’s health and their caffeine consumption, making it hard to know if caffeine caused the effects or just correlated with them. Gill’s team used an alternative approach, looking at genetic differences in how quickly people break down caffeine to mimic (模仿) the effects of giving different amounts in a random trial.
There are two genes that affect people’s ability to break down caffeine, meaning that after consuming the same amount of it, people with different variants would have different levels of it in their blood. Gill and his colleagues analysed data from several previous studies that recorded people’s DNA and tracked their health. They included nearly 10,000 people in total, although most included only people of European ancestry.
The studies didn’t analyse blood samples, but previous work has shown that those who break down caffeine more slowly have higher levels of it in their blood on average — even though they tend to drink less coffee. The team found that people genetically predisposed (有倾向的) to have higher caffeine levels had a lower BMI, a measure of a person’s weight in relation to their height; lower fat mass; and a lower likelihood of having type 2 diabetes, a condition linked with being overweight.
“We know that caffeine affects metabolism (新陈代谢) and how energetic someone is. It makes sense that there might be an association,” says Benjamin Woolf at the University of Bristol, UK, who also worked on the study. Gill says people shouldn’t change their drinking habits based on these results — and that people wanting to lose weight should be especially wary of consuming milky and sugary coffee drinks. “A lot of caffeinated drinks are quite calorific,” he says. “Caffeine can have other harmful effects, including effects on sleep and heart function.”
1. What can we learn about caffeine?| A．Caffeine can make you have a slim figure. |
| B．The people thinner may have higher levels of caffeine in their blood. |
| C．Caffeine is the most psychoactive substance in the world. |
| D．Caffeine can be only found in people’s blood. |
| A．By finishing a questionnaire. | B．By doing investigation. |
| C．By analyzing previous data. | D．By collecting blood sample. |
| A．Cautious. | B．Scared. | C．Aware. | D．Doubtful. |
| A．People should drink more coffee to lose weight. |
| B．Europeans are more likely to be affected by coffee. |
| C．Those breaking down caffeine more slowly have higher levels of it in their blood. |
| D．Caffeine may have an impact on your sleep and heart. |
6 . Robert Chmielewski has had quadriplegia (四肢瘫痪) since his teens. Sensors implanted (植入) in his brain read his thoughts to control two robotic arms, which helps him to perform daily tasks. Now he can use one robotic arm to control a knife and the other a fork.
Modern technology can reach inside someone’s head and pull out what he is thinking. Maybe he intends to move a robotic arm or type something on a computer screen. Such thought-controlled devices can help people who aren’t able to move or perform different tasks and promote the well-being of the disabled.
Decoding (解码) thought usually requires placing sensors directly on or in someone’s brain. Those implanted sensors can catch the electrical signals passing between the person’s brain cells, or neurons. Such signals carry messages that allow brains to think, feel and control the body.
Using brain implants, researchers have picked up electrical signals in the brain linked to certain words or letters. This has allowed brain implants to transform thoughts into text or speech on a computer. Likewise, brain implants have transformed imagined handwriting into text on a screen. Implanted sensors have even allowed scientists to turn the signals they caught that are associated with a song in someone’s head into real music.
In a recent study, scientists decoded full stories from people’s brains using MRI scans (磁共振成像扫描). This did not require any brain implants. But building the thought decoder did require many hours of brain scans for each person. What’s more, the system only worked on the person whose brain scans helped build it and only when that person was willing to have their mind read.
So devices that might let someone secretly read your mind from across the room are still a long, long way off. Still, it’s clear that mind-reading tech is getting more advanced. As it does, scientists are thinking hard about what it would mean to live in a world where not even the inside of your head is completely private.
1. What does the text begin with?| A．A suggestion. | B．A comparison. | C．An argument. | D．An example. |
| A．What principles a thought decoder should follow. |
| B．How MRI monitors the work of the implanted sensors. |
| C．What’s used to catch signals passing through the brain. |
| D．How robotic arms are designed to satisfy different needs. |
| A．Concerned. | B．Confident. | C．Doubtful. | D．Indifferent. |
| A．Mind Reading is Stealing Our Privacy | B．Mind Reading is Hard, but not Impossible |
| C．Mind Reading—Good News for Musicians | D．Mind Reading—a Brain-scanning Technology |
7 . When I was a child, there was nothing I loved more than painting. It was my.
However, after graduating from college, the
One sunny day I found myself
Painting has become a way to
| A．price | B．source | C．flash | D．result |
| A．imagination | B．homework | C．fear | D．confusion |
| A．excitement | B．power | C．pressure | D．expectation |
| A．gradually | B．probably | C．wildly | D．hopefully |
| A．chatting | B．sweating | C．cheating | D．walking |
| A．taught | B．noticed | C．recognized | D．remembered |
| A．waiting for | B．begging for | C．filled with | D．alarmed with |
| A．paper | B．wood | C．books | D．novels |
| A．Watching | B．Holding | C．Helping | D．Checking |
| A．architect | B．soldier | C．adult | D．artist |
| A．free | B．quiet | C．busy | D．boring |
| A．agree | B．adapt | C．refer | D．return |
| A．plan | B．record | C．face | D．recover |
| A．reduce | B．balance | C．relive | D．destroy |
| A．trap | B．appreciate | C．expect | D．hide |
8 . A new song by the famous band The Beatles has been released despite half of the band members no longer being alive, thanks to the help of AI.
The Beatles was a legendary British rock band that remained second to Elvis Presley from the 1960s. It was made up of four musicians—John Lennon, Paul McCartney, George Harrison and Ringo Starr. The new song, titled Now and Then, is unique because it combined the singing of McCartney and Starr with Lennon, who passed away in 1980, and the guitar skills of Harrison, who passed away in 2001.
The song was initially written and partly recorded by Lennon in the late 1970s and further developed by band mates years later but as technology then was limited, they didn’t release it due to the sound quality not being satisfying.
Peter Jackson, most famous for directing The Lord of the Rings, directed the music video for Norw and Then and it can be watched now online. It was thanks to new Al audio restoration (音频修复) technology that Peter Jackson allowed the four band members to “come together” one last time.
Since its release last week, the song has been well received in the UK. Beatles fans around the world favoured this historic musical event.
”Now and Then is an absolutely heart-warming piece of work, “posted Liam Gallagher, whose hits were affected by The Beatles’ musical style.
Of course, there are those who are not totally interested in the song. ”Now and Then is not terrible. But honestly, it’s kind of boring, “Geoff Edgers wrote in The Washington Post.
The Times in the UK said the song showed Al being used to its best advantage.
1. Why was the song “Now and Then” not released at first?| A．The song was not completed. | B．The sound quality was not good enough. |
| C．The band members did not like the song. | D．The song was let out before its official release. |
| A．He wrote and recorded the song. |
| B．He invented new audio restoration technology. |
| C．He restored the band members’ sound using AI. |
| D．He played the guitar on the recording. |
| A．Supportive. | B．Curious. | C．Unfavourable. | D．Unclear. |
| A．The Beatles Remains Second to Elvis Presley |
| B．Beatles Fans Welcome the New Song of The Beatles |
| C．Peter Jnckson Directed the Music Video for The Beatles |
| D．The Beatles Released a New Song with the Help of Al |
9 . Sierra Leone Tour
Sierra Leone is a country on the rise, with new flights, a first-ever ecotourism journey, and national park accommodations coming in 2024. Visit before everyone else you know catches on. Perhaps the most exciting development is Sierra Leone’s push to protect and show its wildlife, with new experiences for travellers.
It will offer first-ever accommodations at two important sites: A pair of lake hotels have opened at southeastern river island of Jaibui; you can also choose tent stay at Loma Mountains National Park.
Single 1 room | 2 people 1 room | |
Lake hotel | $350/per room | $550/per room |
Tent stay | $200/per room | $400/per room |
The sun shines down on Sierra Leone throughout the year! Set in the southern hemisphere (南半球), Sierra Leone can be quite cold in the dry winter months, with temperatures often dropping below the freezing point (冰点). The time between June and October is best for Sierra Leone.
Sierra Leone is home to Mount Bintumani, the tallest peak (顶峰) in West Africa west of Mount Cameroon with a great number of endangered animal and bird species like the bizarre-looking White-necked Rockfowl, perfect for birdwatchers. But please note that there is no way for you to request changes to the accommodations. And tourists must be above 3 years old.
1. How much shall a person pay for one room in the Lake hotel?| A．$200. | B．$350. | C．$400. | D．$550. |
| A．April. | B．May. | C．September. | D．November. |
| A．It accepts tourists of any age. |
| B．It is suitable for observing birds. |
| C．Tourists can request changes to the accommodations. |
| D．Tourists have a chance to admire the tallest mountain in Africa. |
10 . Scientists have reported that the sea ice in Antarctica (南极) is at a record low level. Antarctica is a great, icy land, surrounded (围绕) by the huge Southern Ocean. The ice in Antarctica doesn’t just cover the land. There’s also a large area of sea ice on the ocean’s surface.
Every year, the sea ice at the South Pole goes through a cycle. In the summer, the huge sea ice melts (融化) to its smallest point. Over the colder winter months, the sea ice grows and grows until it covers a wide area. Usually, the sea ice covers the greatest area around September 23, as winter ends at the South Pole.
Scientists have been measuring the area of the sea ice in Antarctica since 1979. For most of this time, Antarctica has seemed to be almost unaffected by the changing weather conditions experienced in other parts of the globe. That began to change around 2016. Now, for several years, the area of Antartica’s sea ice has been shrinking.
This year, the US National Snow and Ice Data Centre (NSIDC) reported that Antartica’s sea ice covered its greatest area on September 10 — almost two weeks earlier than normal. And the sea ice was at a new record low-not just by a little bit, but by a lot.
The last time Antartica’s low sea ice set a record at the end of winter was in 1986. And this year, there’s about 398, 000 square miles less sea ice than in 1986.
Scientists are still trying to understand what is driving the change in Antarctica. One likely direct cause for the change is the rising temperatures of the world’s oceans. Ted Scambos, a research scientist at the University of Colorado, says Antarctica’s ice levels have always changed some, but the sharp loss this year is “pointing towards warmer ocean conditions around the continent.”
The new low record has concerned the scientists. Scientists are working hard to better understand Antarctica. They don’t know yet if this is just a short-term problem, or part of a long-term shift (转变) towards less sea ice in Antarctica.
1. What does the underlined word “shrinking” mean in Paragraph 3?| A．Getting smaller. | B．Being flat. | C．Observed. | D．Measured. |
| A．To give an example. | B．To make a comparison. |
| C．To make a summary. | D．To offer an argument. |
| A．The changing weather conditions. | B．Human activities in Antarctica. |
| C．Increased volcanic activities in the area. | D．The increasing temperatures of the global oceans. |
| A．Worried. | B．Annoyed. | C．Excited. | D．Satisfied. |
