—It is time that you ______a picture for me.
School Program
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Hillbrook School Music Program is offered all year round to students of grades 1-5. You can choose violin lessons or piano lessons. Enjoy our beautifulschool with grades and playgrounds TEL: 650-968-5957 www. hillbrook.com |
Emerson School Sports Program for students of grades 1-3 starts in January! Woodshop Program starts on January 15th. Students of grades 4-6 are welcome. TEL: 650-903-0986 www.emerson.com |
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Monarch School Group classes in art are offered every day. Nice and patient teachers are waiting for you. Monthly shows and weekly classes with guest artist. Art Program for beginners only. TEL: 650-720-1677 www.monarch.com |
Aimaden School Every child can be different and special. Our Development Program helps students of grades 1-6 improve thinking skills, through math, science, life skills, cultural activities and fun games. TEL: 650-403-3575 www.almaden.com |
The rapid growth in skyscrapers worldwide, most of which have large windows, has led to a high demand for window washers. Though the job is well-paid, it is dangerous and accidents are not uncommon. However, if Israel-based start-up Skyline Technologies has its way, the dangerous job may soon be done by Ozmo, an intelligent window cleaning robot, with humans supervising from the safety of the ground.
Much like humans, Ozmo, sitting on platforms hanging from the buildings, uses its arms and brushes to clean the dirt on the glass. A 3D map of the building's surface programmed into its system allows the robot to skillfully deal with any obstacle it is likely to meet, as it moves up and down the buildings. The robot will self-correct and move around every obstacle that it might have met so as not to break a window.
Unlike present window washers, the robot cleaner does not require soap to clean the glass. Instead, it uses distilled（蒸馏的）water to do the job. Yaron Schwarcz, CEO of Skyline Robotics explains, "We are environmentally friendly." Ozmo is also expected to be much more efficient than its human counterparts. While it presently takes three cleaners 480 hours each to clean windows of a 40-storey glass building, the robot will be able to do it in 80 hours. However, unlike other robots, Ozmo will not replace human workers, and only make their jobs safer by making them supervisors, who will be controlling the operation from the safety of the ground.
Whether Ozmo, which is still being tested, does as good a job as humans is not clear. If things go well, its creators have much bigger ambitions for Ozmo. Schwarcz told Forbes Magazine, "Window cleaning is just the tip of the iceberg. We plan to replace all tasks that are dangerous and dirty."
Great whites and whale sharks are among the species at risk of extinction over the next century, a new study has found.
Pimiento is the lead author of a study published in Science Advances that looks at how the extinction of large marine species would impact the ecological roles of ocean ecosystems. "The extinction crisis challenges scientists to better measure biodiversity: how will the total variety of life on Earth be affected as human activities lead to the losses of more and more species?" they said. In the oceans, the biggest animals are thought to play crucial ecological roles, and are also facing high levels of threat from human activities such as fisheries and climate change.
The team was looking to move beyond traditional species extinctions, to find out more about the functional diversity, the range of roles that these species perform, and how biodiversity might respond under different extinction scenarios (预测). They ran two different extinction scenarios. In one, researchers looked at extinction probability based on their current IUCN (International Union for Conservation of Nature) status. In the second, they assumed all species listed as threatened, around 40 percent, had gone extinct.
Sharks were found to be one of the worst affected groups. "We already knew that sharks are one of the most threatened groups in the ocean," they said. "They are also very vulnerable due to their large size and low reproductive rate. Our results show that future extinctions would be selective against the most functionally unique and specialized shark species, resulting in greater projected losses." They also said the biggest threats to marine megafauna (大型哺乳动物群) are fishing, either through accidentally getting caught up or directly targeted, and climate change. Mitigating these threats could be the best way to protect these species.
The good news is that the study identifies key species that can be targeted and protected. Sometimes ocean conservation can be a triage game. The science helps us know which species really need our help and which species we really cannot afford to lose.
How to Reduce Anxiety During a Quarantine
Several governments around the world have requested or ordered their citizens to quarantine （隔离） themselves: to stay at home to avoid contact with others so as to slow the spread of diseases like COVID-19. It first appeared in China in late December and quickly became a worldwide health emergency. . Here are some tips for you toreduce anxiety.
Use social media wisely.
For people thriving off social interaction, this practice can be troubling. But Rosmarin, a psychologist from Harvard Medical School, says a lack of physical proximity （接近） shouldn't mean a lack of socializing. He says phoning friends and staying in touch can allow us to maintain our connections, though he cautions that social media like Twitter doesn't provide the same benefits and creates distance. .
Playing online games or other virtual activities can also help you maintain feelings of remaining connected when avoiding in-person visits.
Don't let the news cycle determine your emotions.
The coronavirus situation is dynamic and seems to change by the hour, resulting in a number of people feeling irresistible to stay on top of updates by constant checking their phones. While that can be stressful at any time, it can affect your ability to relax if you surf news outlets just before going to sleep. . Sleep is critical to a healthy immune system, and giving yourself an opportunity to relax is important.
Keep your usual routine.
Routines will go a long way toward helping you avoid feelings of disorganization. Do laundry on Sundays? Keep doing it on Sunday. Not going to work? Get dressed anyway. "Anxiety is just the beginning." Rosmarin says. "Within a week or two, people are probably going to start feeling depressed, especially when we are distancing from one another. That's really where the benefits of scheduling come in.".
. If you are experiencing helplessness from the effects of quarantine, contact a health care provider, a community organization or an emergency hotline number.
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A. It's very unlikely that an update will be so urgent or pressing that it would lose relevance by morning. B. If you stick to your normal sleep patterns and other practices, you will overcome your helplessness. C. Keep a check on your own feelings. D. Quarantines, however, can cause health problems and puts people at greater risk of anxiety and depression as a result of the isolation. E. It is a good choice to call people you know personally, one-on-one. F. You should continue with normal routines as much as possible, which will help you stay healthy. G. Doing as usual will also help you adjust when the world returns--as it unavoidably will-- to normalcy. |
A little boy invited his mother to attend his school's first teacher-parent meeting. To the little boy's 1 , she said she would go. This 2 be the first time that his classmates and teacher 3 his mother and he felt 4 of her appearance. Although she was a beautiful woman, there was a severe scar that 5 nearly the entire right side of her face. The boy never wanted to 6 why or how she got the scar.
At the meeting, the people were 7 by the kindness and natural beauty of his mother in spite of the 8 , but the little boy was still embarrassed and 9 himself from everyone. He did, however, get within 10 of a talk between his mother and his teacher.
The teacher asked 11 , "How did you get the scar on your face?"
The mother replied, " 12 my son was a baby, he was in a room that caught fire. Everyone was 13 afraid to go in because the fire was 14 , so I went in. As I was running toward his bed, I saw a long piece of wood coming down and I placed myself over him trying to protect him. I was knocked senseless but luckily, a fireman came in and saved 15 of us." She 16 the burned side of her face. "This scar will be 17 , but to this day, I have never 18 what I did."
At this point, the little boy came out running toward his mother with 19 in his eyes. He held her in his arms and felt a great sense of the sacrifice that his mother had made for him. He held her hand 20 for the rest of the day.
A red lantern baby called "Shuey Rhon Rhon" and an (energy) giant panda named "Bing Dwen Dwen" have been uncovered as the two mascots for the 2022 Beijing Winter Olympic and Paralympic Games. The mascots, known to people Tuesday night at Beijing's Shougang Ice Hockey Arena, (connect) with the host nation's culture.
(explain) the idea clearly behind the design of the two mascots at the launch ceremony, Beijing 2022 executive president Chen Jining couldn't hide his pride. "The two mascots put elements of traditional Chinese culture together with a modern international style. It is believed that they (symbol) the Chinese people's eager expectations for the Beijing Winter Olympic and Paralympic Games, and China's warm invitation to friends from all over the world," said Chen, is also the mayor of Beijing.
"They are designed (express) all the aspects of the Olympic spirit, including wonderful characteristics such as passion, perseverance, friendship and common understanding to (active) engage the public."
The name "Bing Dwen Dwen" is combination of several meanings in the Chinese language, with "Bing" the Chinese word for "ice", and "Dwen Dwen" meaning (strong) and liveliness. In the name "Shuey Rhon Rhon", "Shuey" is the Chinese word for "snow" and "Rhon Rhon" has the meaning of tolerance.
增加：在缺词处加一个漏字符号（∧）,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。
I was always busy with my studies and seldom helped my parents with houseworks. Feeling quite sorry for that, and I began to think about how to do to help them. Last Sunday, when my parents went out shopping, I suddenly got idea: why not give the rooms a thoroughly cleaning? First, I collected all the books, newspapers and another things in the rooms and then put it in place. After that, I sweep the floors. At this very moment, my parents came back and were quite surprising to see all the rooms tidy. My mother gave me a hug and I could see satisfaction in his eyes.
1）表示理解和关心；2）沉迷抖音的影响；3）提出具体的建议。
注意：
1）词数100字左右； 2）可以适当增加细节，以使行文连贯。
Dear John,
Yours,
Li Hua
