Last December China _____ 100 Chinese and 10 foreigners for their outstanding contributions to the country’s reform and opening-up.
A. distinguished B. sponsored
C. acknowledged D. evaluated
The health of garden plants depends on the soil _____ --the proper balance of mineral pieces, organic matter, air and water.
A. construction B. conservation
C. corporation D. composition.
假设你是红星中学高三学生李华。上周你们班组织了一次去红星剧院观赏相声的活动。请按照以下四幅图的先后顺序，以“A Taste for Chinese Crosstalk”为题，写一篇英文周记， 记述你们观赏并体验相声（crosstalk）的全过程。
注意：词数不少于60。
提示词：长袍：long gown. 抖包袱：reveal the jokes.
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假设你是红星中学高三学生李华，你的英国朋友Jim在邮件中表示，下周将到北京参加一个主题为“游学在北京” 的文化体验活动，向你咨询有关景点的信息。请给他回邮件，内容包括：
1. 推荐一个特色景点；
2. 说明理由；
3. 温馨提示。
注意：1．词数不少于50；
2．开头和结尾已给出，不计入总词数。
Dear Jim,
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Yours,
Li Hua
What is mental health?
Mental health is an expression we use every day, so it might surprise you that the term ‘mental health’ is frequently misunderstood. 1.
According to the WHO, however, mental health is “a state of well-being in which every individual realizes his or her own potential, can deal with the normal stresses of life, can work fruitfully, and is able to make a contribution to her or his community.”
2.
To make things a bit clearer, some experts have tried coming up with different terms to explain the difference between ‘mental health’ and ‘mental health conditions’, such as ‘good mental health’, ‘mental well-being’, and even ‘happiness’. 3.
As a result, some of them have tried to explain the difference by talking about a continuous whole where mental health is at one end of the range while mental health conditions are at the other.
Research shows that high levels of mental health are associated with increased learning, creativity and productivity. 4. In contrast, mental health conditions can cause distress and bad effect on relationships. They are also related to poor physical health and death from suicide.
5. The fact that someone is not experiencing a mental health condition doesn’t necessarily mean his mental health is good. Likewise, it’s possible to be diagnosed with a mental health condition while feeling well in many aspects of life.
Briefly, mental health is about being emotionally and socially healthy – the way we think, feel and develop relationships - and not merely the absence of a mental health condition.
A. So instead of being about ‘what’s the problem?’, it’s really about ‘what’s going well?'.
B. It is often mistakenly used as a substitute (替代) for mental health conditions.
C. This, however, will help prevent mental health conditions.
D. But others argue that using more words to describe the same thing just adds to the confusion.
E. They can also improve social relationships and physical health.
F. Many people are affected by depressions, anxiety and suicide.
G. But it’s important to remember that mental health is complex.
The Arizona desert is really dry. Anyone stuck in it without water would die from dehydration（脱水）within three days. Unless, that is, they had one of Omar Yaghi’s next-generation water harvesters. Although daytime humidity（湿度）is only about 10 per cent, this rises to 40 per cent at night, which means there’s enough water in the atmosphere to support life — if it can be changed into liquid form.
That’s exactly what Yaghi’s device does. It’s a box about the size of a small microwave oven designed to suck the humidity from the air at night and turn it into drinking water the next day using only the heat of the sun as its power source. What makes it work is a powder called a metal-organic framework (MOF), which at normal temperatures attracts water molecules (分子) onto its surface. Warm it up and the water is released, each harvest producing one-third of a cup of pure drinking water. “With further improvements, a device, the size of a washing machine, could produce enough water for the basic needs of a household,” says Yaghi, a chemist at the University of California.
One-third of the world’s population lacks safe drinking water; for them such a device could be a lifesaver. But that’s not the limit of the MOF technology.
Just as MOFs can help solve the problem of water shortage, they offer a way of reducing a lot of greenhouse gases. In April this year, the carbon dioxide levels in the atmosphere hit an 800,000-year high, contributing to climate change. Recent research suggests ways that MOFs might be able to help mitigate（缓解）this danger to the Earth’s ecosystem.
An international team led by chemists from the University of Manchester, UK, reported in 2018 that they had developed an aluminum (Al)-based MOF that can selectively and repeatedly remove another gaseous pollutant, nitrogen dioxide (NO2), from the surrounding atmosphere. This discovery could lead to air-related technologies that seize and change large quantities of other gases, such as carbon dioxide, to reduce air pollution.
In 2017, a MOF startup pioneer NuMat Technologies employed MOFs to safely store and deliver dangerous gases. For a given pressure, a tank containing a MOF holds more gas than one without. Or, to put it another way, if a gas tank has a MOF in it, then it does not need to be as highly pressurized in order to hold the same amount of gas, making it safer and less likely to explode, and possible less expensive.
Now, about two dozen companies in the past five years are known to be pursuing MOFs, from small startups to larger chemical and automobile companies. And QYResearch forecasts that the MOF market will grow from $70 million in 2017 to $750 million in 2025. “The potential here is just endless,” says Yaghi. “As cheaper materials come into focus, there will continue to be even more opportunities for commercialization.”
1.MOF changes the sucked humidity into water by ________.
A. lowering the temperature
B. collecting carbon dioxide
C. recycling dangerous gases
D. absorbing the heat of the sun
2.Aluminum-based MOF can be used to _______.
A. reduce greenhouse gases
B. produce household water
C. deliver dangerous gases
D. release water molecules
3.It can be learned that under the same pressure, a tank with a MOF will _______.
A. cost more money B. cause more explosions
C. hold more gases D. afford more crashes
4.The main purpose of this passage is to ______.
A. explain how to use MOF
B. describe the future of MOF
C. persuade people to buy MOF
D. introduce the functions of MOF
