1 . 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.”
1. What can we know about dwarfed GRVs?A.They have higher yield and taller stems. |
B.They are a “double-edged sword”. |
C.They are environmentally friendly. |
D.They can be easily affected by weather. |
A.Increasing the rate of nitrogen use. |
B.Producing cheaper nitrogen fertilizers. |
C.Using fewer fertilizers to produce more grains. |
D.Finding a gene to solve agricultural problems. |
A.It promotes other genes' activity. |
B.It increases the output of crops. |
C.It takes in nitrogen from the soil. |
D.It lowers fertilizer input levels. |
A.Decreasing the amount of fertilizers required by GRVs. |
B.Encouraging farmers to adopt the new rice variety. |
C.Calling on farmers to use effective fertilizers. |
D.Focusing on the improvement of GRF4. |
A.GRVs—a potential measure to achieve global food security. |
B.The influence of agricultural development on the environment. |
C.The importance of raising public awareness of global issues. |
D.GRF4—foundation for new green revolutions. |
2 . AQUILA Children’s Magazine is the most intelligent read for curious kids. Full of enthusiastic articles and challenging puzzles, every issue covers science, history and general knowledge. AQUILA is a quality production, beautifully illustrated with contemporary artwork throughout.
Intelligent reading for 8-12-year-olds
Cool science and challenging projects
Inspires self-motivated learning
Exciting new topics every issue
AQUILA is created and owned by an independent UK company. It has 28 pages, printed on high-quality paper and there are no advertisements or posters. Instead it is full of well-written articles, thought-provoking (令人深思的) ideas and great contemporary artwork. Each monthly issue is centred around a new topic.
AQUILA works as a superb learning extension to current primary (or KS2 and KS3) curriculum (课程), but it is much more than that! Entertaining and always surprising, AQUILA is recommended because it widens children’s interest and understanding, rather than encouraging them to concentrate only on their favourite subjects. It gives children a well-rounded understanding of the world, in all its complexity.
The concepts in AQUILA can be challenging, requiring good comprehension and reading skills. Eight years is usually a good age to start. Some gentle interest from an adult is often helpful at the start.
In 2021 AQUILA will have been in publication for 29 years, but it has never appeared in newsstands or shops. We are subscription only.
AQUILA Subscription
UK:12 Months£55-4 Months£30
Europe:12 Months£60-4 Months£35
World:12 Months£70-4 Months£35
Birthdays
Select the Birthday option, write a gift message and choose the birthday month. We will dispatch to arrive at the start of the month you have entered. The package posts in a blue envelope marked “Open on your birthday”.
1. What is special about AQUILA?A.It is available in shops. | B.It is for kids of all ages. |
C.It prints readers’ artwork. | D.It has no advertisements. |
A.Articles on modern art. | B.Family reading materials. |
C.Knowledge beyond school subjects. | D.Ideas on improving reading skills. |
A.Foreign language learners. |
B.Children with learning difficulties. |
C.Parent-child reading lovers. |
D.Curious kids with good comprehension. |
Most of us think that the world’s oldest color is black or dark gray. However, scientists have discovered that bright pink is the oldest
Dr. Gueneli said her first
4 . Developing strong study skills as a high school student not only allows you to earn better grades in high school, but also to prepare you for college. The sooner you start to build your study skills, the more good habits you’ll create for your future study.
1. Boost brain power
2. Develop concentration
Set focused study time for nothing but school work. Create a quiet study zone that includes a phone-free environment for studying.
3. Develop organizational skills
Find a convenient location for putting all your school learning papers, books, and homework assignments in place. That way you’ll be better prepared for the coming lectures and thus better follow the teachers.
4.
Be sure to effeciently write down what you listen to in class. You don’t need to write down everything said, just the important points. You may have to take down keywords, dates, names and fill in the details later if you are having trouble getting down enough. Learning to organize and denote(表示)things in a clear visual way is also very helpful in taking good notes.
A.Being organized can save you a lot of time and allow you to have more efficient(高效)class. |
B.You can have a rest after using your brain too long. |
C.Develop good listening skills |
D.That’s why it’s important to build good study skills early. |
E.Make sure you are eating healthy food and getting enough rest. |
F.Develop note taking skills |
G.When you are studying, try to clear your desk and just keep some study necessities. |
5 . CWA Photo Competition 2021
Calling all photographers!
We’ve all been spending more time indoors lately. Whether you’ve been killing time looking back at photos from holidays past, risking taking walks to local sites, or busy working at home, we want to see your best photos on an archaeological theme. Send them to us for your chance to win the first prize in our yearly CWA Photo Competition and have your work showed in the magazine.
The winning image and three runners-up will be featured in CWA. The overall winner will get a free 2-year subscription (订阅) to the magazine.
Closing date: 1 October 2021
The judges’ decision is final, and the results of prize-winners will be announced by 15 October 2021.
Rules:
☆All photos entered must be done under an individual’s name. By submitting (提交) images you confirm that you are the copyright holder and creator of the images.
☆Entrants (参赛者) must be 8 or over. The competition is open to all amateur (业余的) and professional photographers. Amateur and professional entries will not be judged separately.
☆Entrants can submit up to 5 images — please include details of the site or artefact photographed, when each image was taken, and your contact information, including a postal address.
Entrants can send your entries by email to cwa@world-archaeology.com with the subject line: CWA PHOTO COMPETITION 2021 or on a disc to CWA PHOTO COMPETITION, Current Publishing, Thames Works Church Street, London W4 2PD
1. What subject should the entries focus on?A.Personal experiences during holidays. | B.Archaeological findings. |
C.Taking walks outside. | D.Working at home. |
A.Submitting individual pieces |
B.Being a professional photographer. |
C.Mailing their entries before 15 October 2021. |
D.Being a regular subscriber to the magazine. |
A.Two. | B.Three. |
C.Five. | D.Six. |
6 . Want to support animals in need? Here are three ways to show them some love.
Grounds & Hounds
When you buy any item from Jordan Karcher's coffee company. Grounds & Hounds, part of the proceeds (收入) go to shelter near you.In2015,Grounds & Hounds' donations helped partners provide blankets, food and services for about 2,000 rescue animals.
Tel:888-228-8914
E-mail: info @ groundsand houndscoffee.com
Fetch Eyewear and the Pixie Project
In 2004, Ann Sacks founded Fetch Eyewear, a company that sells stylish frames at affordable prices. Three years later, she launched the Pixie Project — a nonprofit project that offers free and low-cost treatment of animal diseases and injuries and rescues pets from overloaded shelters across the country —and 100 percent of Fetch's profits now benefit the charity. To date, the two organizations have helped with more than 5,000 pet adoptions and about 1,000 surgeries (外科手术).
Adoption:503-542-3433
Fax:503-542-3437
Fur for the Animals
Fur for the Animals, run by the animal advocacy group Born Free USA is a campaign( open through December 31) that collects unwanted furs and donates them to wildlife rehabilitation (康复) centers. The furs are used by injured creatures that need to feel cozy and comforted. More than 1,000 pounds of furs have already made their way to animals in need throughout the U.S.
Tel:011-5952-5440
1. Through Grounds & Hounds, how can you help animals?A.By getting a pet. | B.By donating money to it. |
C.By buying coffee from it. | D.By volunteering your services. |
A.011-5952-5440. | B.503-542-3433 |
C.888-288-8914. | D.503-542-3437. |
A.It sells cheap frames. | B.It benefits Fetch Eyewear |
C.It is a highly profitable business. | D.It works together with animal shelters. |
A.how to profit from animals |
B.the three ways to show love to animals |
C.the success they have got |
D.how kind they are to animals |
7 . Ways to Show Gratitude (感激)
COVID-19 has a way of making people feel like their world was turned upside down overnight. They struggle with feeling frightened and feeling like everyone is overreacting (反应过度).
Give thanks for everyday things
One way to make gratitude a regular part of your day is to make it a habit to think of three things you are thankful for each day. It doesn’t really matter whether you perform this exercise first thing in the morning or just before you go to bed. The important thing is that you’re taking time and reflecting on what you are grateful for.
Keep track of everything you’re grateful for
Using a phone app like Gratitude Plus, you can record the things you’re grateful for. Another option is to use social media or even post-it notes to express your gratitude.
Reflect on past negative experiences
Look back on the worst moments in your life.
A.Make gratitude a daily habit. |
B.Stick to expressing gratitude in public. |
C.Then, compare those with where you are now. |
D.Gratitude doesn’t have to be over the top or something significant. |
E.You can hardly stay strong while recalling the moments that ever happened. |
F.But learning to practice gratitude every day can bring some changes to your life. |
G.The key is to use a method to help you remember the things you are grateful for. |
8 . Think of the last time you disagreed with another person. Maybe you argued with a sibling (兄弟;姊妹) over what to watch on TV.
How can you understand both sides of an issue? Often,it’s best to start by asking questions. Questions help us learn about the world around us.
When seeking to understand both sides of an issue, it’s important to know the difference between facts and opinions. Remember, facts are based on true information. Opinions can change from person to person. Paying attention to facts can stop biases (偏见) from taking over in a disagreement.
Maybe you’re wondering why it’s important to understand both sides of an issue, anyway. After all, don’t most people just want to prove that their side is right? Often, that’s true. However, understanding the whole issue can lead to both sides working together.
A.Let’s agree to disagree. |
B.Disagreements may be uncomfortable at first. |
C.In many situations, disagreements are unavoidable. |
D.The ability to ask the right questions reflects good thinking ability. |
E.Or perhaps you tried to convince grown-ups that ice cream makes a better dinner than vegetables. |
F.The right questions can also help us learn about other people. |
G.This can help everyone involved see both sides of the issue. |
9 . We know that China is the largest and fastest-growing consumer market in the world. What is less well understood are the forces that shape consumerism in the world’s most populous country. In my view, there are some social and cultural aspects at play that drive consumer spending.
Consumerism is related to freedom. To have a choice means to have consumer choice. You are what you consume. Consumption is an expression of self. It allows you to explore the world through its products, to experiment with lifestyle choices, and to do so safely and anonymously(匿名). You might never get to France, but you can try French wine. California might be far, but you can go to Shanghai Disneyland. Indeed, the enthusiasm for choice is reflected in the enthusiasm Chinese consumers have for online shopping.
Consumerism is a statement of success. American economist Thorstein Veblen popularized the concept of “conspicuous consumption”. When consumption is no longer driven only by need, it becomes a way of making a statement that you have disposable(可自由支配的)income and you can ---at least in certain respects---enjoy life on your terms. Simple pleasures---a pair of shoes, a smartphone, designer clothing --- become statements of personal identity.
The collective experience is focused. We like participating in group events. FOMO, the Fear of Missing Out, goes beyond cultures. But I suspect this trend is stronger in China than in the West because Confucian culture does not celebrate outsiders as the West’s culture does. Social media reinforce(强化)this collective pattern so that shopping and dining are shared experiences. Opinions are crowd-sourced. And the merchants reinforce this pattern by supporting holiday sales, group buying, and other promotions.
Successful brands in China are able to handle most or all of the above considerations. The consumer must not only be delighted with your product. The journey of the consumer must also respect these socio-cultural aspects.
1. What’s mainly talked about in the passage?A.Chinese are growing wealthier. |
B.China’s fast-growing market economy. |
C.Chinese socio-cultural influences on consumerism. |
D.Chinese consumers’ preference for quality rather than quantity. |
A.Shopping online is a new experience. |
B.Consumption can be a reflection of freedom. |
C.Foreign products can be purchased in China. |
D.Shopping around the world is a favorable choice. |
A.The ability to cover one’s real need in daily life. |
B.Spending money in order to keep up with others. |
C.The purchase of expensive items to display status. |
D.Buying plenty of goods and delivering them to others. |
A.Social media play a bigger role in their lives. |
B.Following the trend is what people like better. |
C.Chinese people have less contact with the strangers. |
D.Confucian culture is less likely to appreciate outsiders. |
10 . Are some people born clever, and others born stupid? Or is intelligence developed by our environment and our experience? Strangely enough, the answer to these questions is yes. To some extent our intelligence is given to us at birth, and no amount of education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of person's intelligence are fixed at birth, whether or not he reaches those limits will depend on his environment. This view, now held by most experts, can be supported in a number of ways.
It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from population, it is likely that their degree of intelligence will be completely different. If, on the other hand, we take two identical twins, they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.
Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth plays a part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all are likely to have similar degree of intelligence.
1. Which of these sentences best describes the writer’s point in Paragraph 1?A.To some extent, intelligence is given at birth. |
B.Intelligence is developed by the environment. |
C.Intelligence is fixed at birth, but is developed by the environment. |
D.Some people are born clever and others born stupid. |
A.purposely | B.frequently |
C.independently | D.aimlessly |
A.On Intelligence |
B.What Dose Intelligence Mean ? |
C.We Are Born with Intelligence |
D.Environment Plays a Part in Developing Intelligence |