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The worldwide 20th century "Green Revolution", which saw huge year-by-year increases in global grain yields (产量), was fueled by the development in the 1960s of new high-yielding dwarfed (矮小) varieties known as Green Revolution Varieties (GRVs).

These dwarfed GRVs are common all over the world in today's wheat and rice crops. Because they are dwarfed, with short stems, GRVs devote relatively more resources than tall plants to the growth of grains rather than stems, and are less likely to suffer yield losses from wind and rain damage. However, the growth of GRVs requires farmers to use large amounts of nitrogen fertilizers (氮肥) in their fields. These fertilizers are costly to farmers and cause extensive damage to the natural environment. The development of new GRVs combining high yields with reduced fertilizer requirements is thus a global agricultural goal.

Researchers at the University of Oxford and the Chinese Academy of Science have discovered for the first time a gene that can help reach the goal. Comparing 36 different dwarfed rice varieties, the researchers identified a novel natural gene that helps increase the rate at which plants make use of nitrogen from the soil. This gene, called GRF4, can increase the amount of a protein (蛋白质) in plant cells. GRF4 is actually a promoter that encourages the activity of other genes—genes that promote nitrogen uptake (摄入). Professor Harberd said, "Increasing GRF4 levels could contribute to an increase in the grain yields of GRVs, especially at low fertilizer input levels."

The researchers say the latest rice variety containing GRVs should now become a major target for farmers in increasing crop yields and fertilizer use efficiency, with the aim of achieving the global grain yield increases necessary to feed a growing world population at a reduced environmental cost. It is very urgent at the moment.

Professor Harberd added, "This study is an example of how studying fundamental science objectives can lead rapidly to potential solutions to global challenges. It shows how the discovery can enable chances for food security and future new green revolutions."

Keeping up with fashion seemed so important when I was a teenager. Back in 1973, if you weren't wearing Penn Loafers (乐福鞋) you'd just as soon go around in your bare feet. There was only one problem that year. I didn't have a pair of Penny Loafers.

"I need some money for Penny Loafers. "I told my dad one afternoon at the place where he worked as a car mechanic.

Dad looked at me for a full minute before he answered, "Wear those shoes one more day. Look at every pair of shoes you see at school. If you can tell me that you are worse off than the other kids, I'll buy new shoes for you."

The next day, I did what Dad said. I saw many schoolmates wore shabby shoes of the likes I'd never had to wear, and shoes with holes in them, but I had no intention of telling him the results.

When school was out, I rushed to the place where Dad worked. It was quiet. Only an occasional clank (叮当声) of metal could be heard as Dad worked under a car. Then dad's shoes came into my sight. They were old and black, and they were the kind mechanics and service-station attendants wore. I saw the mended soles (鞋底) and the spliced laces (拼接的鞋带) .

"Did you do what I told you today? "

"Yes, sir. "

"Well, what do you want to do? "He looked as though he might know what my answer would be.

"I still want the Penny Loafers. "I forced myself not to look at his shoes.

Dad handed me ten dollars. I took the money and went to the store two blocks down the street. A rack (货架) on a far wall appeared as if it had a million pairs of black Penny Loafers resting on it. On a rack next to it was a sign that reads "CLEARANCE (清仓大甩卖) 50% OFF". Below the sign sat several "young" versions of Dad's shoes.

注意：1. 续写词数应为150词左右；2. 请按如下格式在答题卡的相应位置作答。

Paragraph 1: 

My mind was playing Ping-pong. 

Paragraph 2: 

I ran back to Dad's workshop and put his new shoes on the seat of his car.

假定你是李华，11月1日你们高二年级全体学生参观了以科技为主题的城市科学技术博物馆 (City Science and Technology Museum) 。请你为校英文报撰写一篇新闻报道，内容包括：1. 活动内容；2. 活动感受。

注意：1) 词数80左右；2) 请在答题卡的相应位置作答。

In ancient Chinese culture, to promote all-around development, students  (require) to learn the so-called Six Arts (L, iu yi in Chinese) , rites (礼), music, archery (射), charioting (御), calligraphy and mathematics.  (date) back to the Zhou Dynasty (1046 BC-256 BC), the Six Arts existed before Confucius but later  (gradual) became a part of Confucian philosophy, which stressed behavior and values. 

Among the Six Arts, rites stood  manners. There were rites that were used in different events, such as weddings, funerals and military activities. Students in ancient times could gain  sense of dignity and harmony from the study of rites and music. Archery was a required skill for all aristocratic (贵族的) men. Charioting was the very form of training  required the combined use of wisdom and physical strength. By practicing archery and charioting, students not only obtained war skills but also learned how to behave as  (noble). Calligraphy enabled people to acquire knowledge  become humble while mathematics could help them learn to think more quickly. 

The Six Arts, deeply  (root) in Confucian philosophy, integrate the elements of moral education, academic study, physical education and social training. In short, the Six Arts system  (represent) an important part of Chinese traditional culture and displays its unique charm. 

"I am leaving home. "When Timmy, my 10-year-old son, eagerly announced that he couldn't wait to 1 , the feeling of guilt peaked as I tried to figure out the reason. "So, I can get a dog, "he 2 .

But I stayed 3 —we didn't need a dog to be involved in our life-and he gave up. Until the day I overheard Timmy, with his brother, discussing his moving plan. Suddenly, the situation 4 : gain a dog or 5 a child. I felt my resolution 6 . "We can look into it, "I replied doubtfully, but the kind we wanted cost incredible $1, 000! Yes, love had a price. I 7 for thought again.

I shared my 8  with my friend whose love for dogs was quite sensible. He connected me to his pet keeper friend who got a pregnant dog and the baby dogs were due soon. A few days later, we took a surprise trip to the countryside when the little dogs were born. I would admit that all my previous 9  reappeared after watching a group of blind. things, but it was too late. Among the screams of 10 , we selected one of the little dogs as ours. 

We attempt to 11 our kids in a healthy way-I didn't realize the added dimension of love and 12 that a dog would teach my kids. On a hot day, Timmy cut down his outing to check that Odie, the dog, had enough water. When Odie was sick, my elder son made fresh soup and 13 fed it to him.

My children no longer talk about leaving home because there is the 14 issue of who will take care of the dog. They quietly learn how to give and receive love. If having a dog means linking my children even closer together, it will be a mother's prayer 15 .

For many of us, there's nothing better than burying our head in a good book. Whether it's a striking crime story or a biography of someone's amazing life, it's good to read a book to switch off from the distractions of everyday life.

It may seem obvious that reading is beneficial to our health. It can be educational and broaden the mind. A good novel can make us happy or make us cry as we empathize with characters.  This power of reading books was first recognized a few years ago by the British charity Reading Agency, which published a list of books that doctors could offer to patients, dealing with topics from depression, dementia (痴呆) to chronic pain. 

Professor Philip Davis, the author of a book called Reading for Life, studied people in reading groups and found that it's reading literature-only written works thought to have artistic value-that has the best effect. "When reading something for pleasure," he said, "the brain begins to work from different parts. It gets excited. It gets pre-emotional.

In our smartphone time, we tend to abandon a good book and play with our phones instead. But opening up a book could be a simple way to help maintain our mental health. And it may allow you to see that awkward situation you've been anxious about for long from someone else's view.

Refer to the Reading Agency's book list, or you could read book reviews, visit a library or bookshop or ask a friend. Once you've found the right one, you'll be fascinated!

A. You can see the brain coming to life. 

B. Perhaps you could always use an e-reader. 

C. It can help you set new targets and find focus. 

D. You can lend it to friends and forget what you did. 

E. It is powerful to help you relax the body and mind. 

F. It is actually being identified as a treatment for sickness. 

G. If you're not an eager reader, it's hard to know where to begin.

New smart wheelchairs are designed to allow users more freedom of movement. Some even allow them to raise or lower the seats or to go up and down stairs. Now, Scewo, a Swiss company, has designed their futuristic motorized wheelchair Scewo Bro that is a complete solution with multitasking innovation. This smart wheelchair is so advanced and multifunctional that it won the Design Prize in2021 and has been recognized as a pioneer in the medical technology industry. 

With clearly defined lines and a reduction to the essentials, the design team developed a clear design language. That way, Scewo Bro is seen as a new generation of wheelchairs at first glance. ScewoBro users can control the wheelchair either by a touch interface (界面) or a smartphone. They can switch from one to the other and can also choose from three different modes: park mode, drive mode, and track mode. This allows for any terrain (地形) and allows people with mobility disabilities to be independent. 

Built with safety in mind, the seat always balances itself so the user stays in a sitting position. This feature allows users to deal with different terrains without the risk of tipping over. Besides, the foot rests, the seat, and the arm rests are designed to be comfortable and adjustable. 

The smart wheelchair can go up to 35 kilometers on one charge and can go 10 kilometers per hour. If a break is needed, just put the chair into the relaxation position. The smart wheelchair comes with two secure storage areas for people on the go to store valuables. It can fit in the trunk of a car and can be charged in just five hours, whose awesomeness is more than you expected. 

Scewo Bro is available in Switzerland, Austria, and Germany. While the first batch (首批) has sold out, people can pre-order for delivery in the near future. This futuristic wheelchair will allow increased movement and a better quality of life for people with mobility issues. 

This fall, students at the University of Massachusetts found a new menu at their dining commons: the "diet for a cooler planet" menu. This meant herb-roasted lamb, raised with a carbon-friendly approach. It included sweet potatoes that had been picked from a local farm's field post-harvest. The options were plant-heavy, locally grown, and involved little to no packaging.

"We wanted to let students participate in climate action by making choices about their food, says Kathy Wicks, sustainability director for UMass Dining. The university is not alone in this effort. Increasingly, American consumers and institutions are thinking about how their food choices factor into climate change. For many, small choices at the grocery store, dining hall, and restaurant can feel more accessible than big-ticket options like buying a fuel-efficient car or installing home solar panels.

Small changes in dietary habits may make a big difference. Climate activists often target fossil fuels and transportation systems, but studies point to the food system as a significant contributor to global warming. According to Project Drawdown, a research organization that evaluates climate solutions, the way food is grown, transported, and consumed accounts for about a quarter of the world's greenhouse gas emissions. Beef is a regular target. "If, on average, Americans cut a quarter pound of beef per week from their diet, it's like taking 10 million cars off the road a year, says Sujatha Bergen, director of health campaigns for the Natural Resources Defense Council. Food waste ranks third among climate solutions. While much waste occurs before consumers are involved-food left on the field or thrown away because it does not fit appearance standards, Americans also throw out a lot of food they have purchased: about $1, 600 worth a year per family of four.

"People are beginning to understand that their food choices make a big impact on climate, says MeganLarmer, director of regional food at the Glynwood Center for Regional Food and Farming in New York. But, she cautions substantial change will need to come from the whole food system.

Since September I've been living in a hall, just a stone's throw from the Thames. Campus is a25-minute walk from my hall, which is across the river and down Fleet Street. There, in The London School of Economics and Political Science (LSE), I take courses in social policy, philosophy and public policy, public management and behavioural economics.

In the first few weeks we covered how to measure well-being, how to distribute health care resources, and the origins of the welfare state, to name only a few. I've had great support from my academic adviser, who I was told is really somebody and highly respected in the field of social policy.

I learn loads of things each day and more importantly, what I learn feels relevant. Looking back, I can better understand the work I did in the government, and how the approaches I've learned work in some situations or fail in other situations, After one term, I can feel my viewpoint change from 50 feet to 50, 000 feet.

Probably the most difficult part of attending graduate school overseas isn't the education itself but rather the act of "putting the previous life on hold". I think this is especially true for students who have already started their professional life or are a couple of years senior.

But there are plenty of benefits, and I feel that time at LSE passes faster than I realize. Already, I've made friends with students from dozens of other countries, which brings great advantages and fun. Perhaps what unites us is the great British tradition of meeting each other at the end of the week for entertainment at the cafe. In fact, I'm about to make my way there now.

The ebike has become an essential item, and even the King has been spotted riding one. According to the market research company Mintel, sales have almost tripled over the past five years. While ebikes have become increasingly commonplace, they are still undeniably expensive. You can pick up a perfectly adequate push bike for £ 300, but most ebikes cost nearly £2, 000. Now, Cycling Electric, designed to help consumers choose an ebike, offers the following recommendations. 

Best folding bike

Carbo Model X

Price: £2, 799 | Weight: 13. 3kg | Range: up to 34 miles

This is one of the most convenient bikes from a little-known label. The lightweight Carbo X is the perfect example of convenience thanks to its carbon frame and belt drive, instead of a metal bike chain. This makes it lighter and less likely to get messy than an electric Brompton, with its more traditional, oily chain. 

Most stylish

Temple Cycles Classic

Price: from f2, 995 | Weight: 19kg | Range: up to 74 miles

This Bristol-based brand is known for its elegant pushbikes, which are hand-built in the city. This is its electric version. It's a very fashionable and functional commuter (通勤) option and not too heavy. Temples have fewer proprietary (品牌专卖的) parts and so are serviceable in any bike shop. Stylish as they may be, the VanMoofs and the Cowboys can be a bit more complex to get back-up and service.

The money-no-object option

Riese Muiller Nevo4 GT Vario GX

Price: 5, 380 | Weight: 28. 4kg | Range: up to 93 miles

This is a prime example of the attention to detail delivering a high-quality experience in functionality, comfort and practicality-if you can afford it. It has the capacity to handle 25kg of luggage in a pannier (货筐), powerful road lights and a beautifully smooth motor.