Olympics Competition Schedule
The Tokyo 2020 Olympic Games will feature a record 33 competitions and 339 events held across 42 competition venues.
Below you will find the Olympic competition schedule.
Simply tap on the icon (图标) for each schedule to see it in detail.
*The competition schedule was amended (修改) to reflect the new dates following the postponement of the Games and may be subject to change.
Table as of 16 June 2021
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Olympic Competition Schedule Fri 23 July*All times in Japan Standard Time (JST)
*Opening Ceremony *Archery Women's Individual Ranking Round
Date and Time: Friday 23 July 20:00- 23:
00. Date and Time: Friday 23 July 9:00 - 11:00
Venues: Olympic StadiumVenues: Yumenoshima Park Archery Field
*Rowing Men's Individual Ranking Round
Date and Time: Friday 23 July 8:30 - 12:10Date and Time: Friday 23 July 13:00 - 15:00
Venues: Sea Forest WaterwayVenues: Yumenoshima Park Archery Field
My name is Alice. Early last year, I was troubled by an anxiety that crippled my ability to do anything. I felt like a storm cloud hung over me. For almost a year I struggled on, constantly staring at this wall that faced me. My perfectionist tendencies were the main root of this: I wanted to be perfect at whatever I did, which obviously in life is not possible, but it consumed me.
One day, I attended a presentation by wildlife conservationist Grant Brown at my high school. His presentation not only awed and inspired me, but also helped emerge an inner desire to make a difference in the world. I joined a pre-presentation dinner with him and that smaller setting allowed me to slowly build up my courage to speak one-on-one with him—an idea that had seemed completely impossible. This first contact was where my story began.
A month later, Brown invited me to attend the World Youth Wildlife Conference. Looking back, I now see that this would be the first in a series of timely opportunities that my old self would have let pass, but that this new and more confident Alice enthusiastically seized. Shortly after I received his invitation, applications to join the Youth for Nature and the Youth for Planet groups were sent around through my high school. I decided to commit to completing the applications, and soon I was a part of a growing global team of young people working to protect nature. Each of these new steps continued to grow my confidence.
I am writing this just six months since my journey began and I've realised that my biggest obstacle this whole time was myself. It was that voice in the back of my head telling me that one phrase that has stopped so many people from reaching their potential: I can't. They say good things come to those who wait; I say: grab every opportunity with everything you have and be impatient. After all, nature does not require our patience, but our action.
Zoologists studied the nervous systems of insects to investigate principles of biological brain computation and possible effects on machine learning and artificial intelligence. Specifically, they analysed how insects learn to associate sensory information in their environment with a food reward, and how they can recall this information later in order to solve complex tasks such as the search for food.
Living organisms show remarkable abilities in coping with problems posed by complex and dynamic environments. They are able to generalize their experiences in order to rapidly adapt their behaviour when the environment changes. The zoologists investigated how the nervous system of the fruit fly controls its behaviour when searching for food.
Using a computer model, they simulated(模拟) and analysed the computations in the fruit fly's nervous system in response to scents coming from the food source. They initially trained their model of the fly brain in exactly the same way as insects are trained in experiments. They presented a specific scent in the simulation together with a reward and a second scent without a reward.
"The model rapidly learns a strong representation of the rewarded scent after just a few scent presentations and is then able to find the source of this scent in a complex environment," said computer scientist Dr Hannes Rapp, who created the model.
The model created is thus capable of generalizing from its memory and to apply what it has learned previously in a completely new and complex environment, while learning required only a very small database of training samples.
The results suggest that the transformation of sensory information into memories in the brain can inspire future machine learning and artificial intelligence applications to solving complex tasks.
Space is becoming more crowded. On December 3, a Falcon 9 rocket made by Space X thundered into the sky. On board were 64 small satellites, more than any American company had launched before in one go. They have a variety of uses, from space-based-radar to the monitoring of radio-frequency-emissions. They will be working in their orbits(轨道).
These objects are part of the latest breed of low-Earth-orbit (LEO) satellites. This launch is just taste of what is planned. Space X and One Web, a communications firm, plan to launch satellites in their thousands, not hundreds. The pair are set to double the total number of satellites in orbit by 2027.
That promises to change things dramatically on Earth. LEO satellites can bring internet connectivity to places where it is still unavailable or unaffordable. This will also be a lasting source of new demand for the space economy. Morgan Stanley, a bank, projects that the space industry will grow from $350 billion in 2016 to more than $
1.1 trillion by
2040. New internet satellites will account for a half this increase.
For that to happen, however, three worries must be overcome. Debris (碎片) is the most familiar concern. As long ago as 1978, Donald Kessler, a scientist at NASA, proposed a situation in which, when enough satellites were packed into low-Earth orbits, any collision could cause a chain reaction which would eventually destroy all space craft in the same orbital plane. The syndrome which bears Mr. Kessler's name weighs heavily on the minds of executives at the new satellite firms. Debris could cause entire tracts (广阔的一片) of space to be unusable for decades.
Solutions exist. One is to grab malfunction satellites and pull them down into Earth's atmosphere. Another is to monitor space more intensively for debris; a US Air Force program me called Space Fence is due to start in
2019. But technology is only part of the answer. Rules are needed to govern the safe disposal of old satellites from low-Earth orbit.
Cyber-security is a second, long-standing worry. Hackers could take control of a satellite and seal intellectual property, redirect data flows or cause a collision. The satellite industry has been slow to respond to such concerns. But as more of the world's population comes to rely on the infrastructure of space for access to the internet, the need for action intensifies.
The third issue follows from the first two. If a simple mistake or a cyber-attack can cause a chain reaction which wipes out hundreds of billions of dollars of investment, who is liable? Underwriters (承保商) are studying the plans of firms (quite a lot) that wish to operate large numbers of satellites. But there is a long way to go before the risks are well understood, let alone priced.
As space becomes more commercialized, mind-bending prospects open up: packages moved across the planet in minutes by rocket rather than by plane, equipment sent to other small planets, passengers launched into orbit and beyond. All that and more may come, one day. But such activities would raise the same questions as LEO satellites do. They must be answered before the space economy can truly develop.
The information age has reached a critical point, with AI's superior computation ability surpassing that of humans. A report released by Goldman Sachs in March 2023 estimated that AI is capable of doing a quarter of all the work currently done by humans. _____ It would not just happen to individuals, but it could be pretty systematic. Across the European Union and US, the report further notes, 300 million jobs are expected to be lost to automation.
_____ According to Martin Ford, author of Rule of the Robots: How Artificial Intelligence Will Transform Everything, three categories are going to be relatively secure in the foreseeable future. _____ That means you're not doing formulaic (程式化的) work or just rearranging things, but generating new ideas. For example, in the field of science, where your job is coming up with a novel strategy or solution, there's going to be a place for human beings.
The second category is jobs that require sophisticated interpersonal relationships like nurses, business consultants and investigative journalists. These are jobs where you need a very deep understanding of people. _____
The third safe zone includes jobs that really require lots of mobility and problem-solving ability in unpredictable environments. Electricians, plumbers, welders (焊工) and the like all fall under this umbrella, where you're dealing with different situations all the time.
In short, seeking roles in dynamic, shifting environments that include unpredictable tasks is good way to avoid job loss to AI, at least, for a while. It's important to note that an advanced education is not a defense against AI takeover. In many cases, more educated workers are going to be more threatened than even the least educated workers. _____ It's really hard to automate that job.
A．That could be terrible.
B．However, they are not coming for all jobs.
C．Thankfully, there are still things AI isn't capable of.
D．The first would be jobs that are genuinely creative.
E．Think of the person that cleans hotel rooms.
F．That doesn't necessarily mean all jobs that are considered "creative" are safe.
G．It'll be a long time before AI has the ability to really build relationships and interact.
On a clear afternoon in late October a few years ago, I stood underneath a giant overhanging cliff near my hometown, Lancaster, Pennsylvania. The scenery that day was particularly 1 , with deer chewing on the brown grasses by the river below, and hawks 2 the wind.
I was tied in, ready to 3 . I was attempting to do a tough route for the first time. "Onsight" (首次攀登), as we call it, means I didn't know where I was climbing to. It would be a hard try for me to onsight such a difficult route. What I need is focus. No 4 .
Just as I was about to climb, 5 in my body, which I hadn't felt yet, woke up and said hello to me. That was a terrible sign for any athlete. Desperate as I felt, I painted a coat of 6 on my inner walls of doubt to ease my tension. I 7 myself at the top, celebrating. "You can do this," I 8 told myself. "If you believe, success is for sure."
It didn't work. 9 , I fell near the top. Defeated, I lowered myself to the ground and realized immediately that the too strong desire to climb the route had 10 me from doing it.
My self-worth was closely 11 at that unnatural moment with my success or failure, which 12 a chain of reaction: unnatural desire, pressure, performance anxiety. I had just climbed with a mind fascinated with the top but a body 13 below with irregular and unnatural movement.
I told myself that on my next 14 , success or failure didn't matter. "Just make one move at a time." I gave myself a pass for whatever would happen. Case closed, it 15 . I floated to the top with grace, clarity and 16 .
That moment got me thinking, and then researching. At some point, I concluded this experience 17 simple arithmetic (算术): When I 18 (determination, self-confidence, desire), I failed; when I took away (the desire for success); my body moved with greater 19 and I made it. As an athlete of 30 years, I discovered the 20 of subtraction (减法) for the very first time.
The English Channel crossing, one of the most famous global swimming challenges, _____ (refer) to as the peak of endurance swimming.
A relay team of winter swimming _____ (enthusiasm) from Wenzhou, Zhejiang province, swam the English Channel in less than 12 hours on Friday. They _____ (choose) to swim the shortest route across the channel, the
33.8 kilometers from Dover in the UK to Cap Gris Nez, a cape near Calais in France.
In fact, the team took exactly 11 hours and 54 minutes to make the crossing, _____ (swim) more than 50 km to avoid obstacles and strong currents. During the team's crossing, each team member swam _____ at least an hour before alternating until they reached France.
Xie Derong, a member of the team, said that although the relay went _____ (smooth) for the most part, the final 6 km proved to be an enormous test of _____ (they) endurance. "We encountered counter currents that caused us _____ (slow) down."
_____ idea of crossing the English Channel first came to them in
2019. Training started several weeks before Friday's swim in the Sanqi Reservoir in Wencheng county, _____ the water temperature was similar to the English Channel.
增加：在缺词处加一个漏词符号(∧),并在其下面写出该加的词。
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。
In recent years many flowers shops have been appeared in our small town. It is common for people to buy flowers when they go to a gathering, visiting a friend, or attend a party. Last winter vacation, I was about to leave a flower shop that a disabled boy caught my attention. I still remembered clear that the disabled boy, owing his entire life to his mother, presented some flowers to his mother to express his gratitude to her. With her kindness and care he would not have had the confidence and courage to fight his disability. As the result of the great effort he had made, he was finally admitted a key university in advance. What a moved moment!
1. 时间与地点；
2. 内容与意义。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯。
Dear Sue,
Yours sincerely,
Li Hua
