Mahatma Gandhi once said, “The greatness of a nation can be judged by the way its animals are treated.”

    There is no doubt that China is a country with high moral values. It has never attacked another country, has one of the lowest rates of violent crimes and is deeply concerned with the social and economic welfare of its people.

    But when it comes to animal rights, China may well fail Gandhi test. There are no laws against the killing of dogs and the sale of dog meat in China. In fact the serving of dog meat in Chinese restaurants has increased in recent years.

    People who eat dog meat argue that dogs have been eaten in China for thousand of years and dog meat has “health benefits”.

    There is, however, a strong argument against waiting dogs .Recently, some Chinese animal rights activists stopped a truck carrying about 500 dogs and saved the poor animals from being sold and served as food in restaurants. These people that dogs are not meant to be eaten but loved.

根据短文内容，判断以下句子的正误。

    After some blood tests, Dr Stubs stood before me, a tall man, but short on personality and sporting a cold expression. You have systemic lupus, he said matter-of-factly. "Lupus," he continued, "is an auto-immune disease and …." I remember certain details but mostly I remember him talking about children. "Children are no harm. But childbirth would jumpstart additional symptoms that could be life threatening. You already have two kids anyway."

    As I got up to leave, shaken and drained, he said his parting words, "I would discourage any further research. There is no cure and nothing can prevent its progression."

    Still, I did research lupus and its symptoms tiredness and joint pain-were both consistent with what I was experiencing. And eventually some major organs could be affected, causing shutdown and possibly death.

    I studied and found out that echinacea had a record in making immune system stronger. I decided that along with the plant I would strengthen my mindset by immersing myself in my family with my one-year-old son and three-year-old daughter.

    After another visit, I decided never to go back to Dr. Stubs. How could one endure repeatedly hear desperately words coming from an emotionless mouth even though they were truth? The years passed. When I would feel tired and achy I pulled support from my children and their laughter.

    Finally, after eight years, I went to Dr. Kirstein who was recommended by a friend. She stood there holding my hand and looking into my eyes warmly.

    "So let's talk a little

    Instantly my defenses were down. Before I knew it, she had me running on and on about my children, my husband, my life and dreams. I told her about all the meaningful activities I was involved in, those things I might have never done without the disease.

    After several follow-up tests, and greater research into my family history, Dr. Kirsteincame to conclusive answer. I did not have systemic lupus. There must be something wrong with the initial tests 8 years before.

    I didn't know whether I should jump for joy or scream because I had been living the last eight years in fear of a fatal disease. But then I realized that I had been living every day, not so much in fear, but happiness Even day was a gift and I knew it.

    War can be deadly for wildlife, too. A new study reports that war is the biggest threat to Africa's elephants, rhinoceroses, and other animals. Researchers examined how years of conflict in Africa have affected populations of large animals. More than 70 percent of Africa's protected wildlife areas have been within a war zone at some point in the last 70 years. The more frequent the fighting, the greater the drop in animal populations, said Josh Daskin, an ecologist at Yale University. He was the lead author of the study, which was published Wednesday in the journal Nature.

    It takes very little conflict, as much as one conflict in about 20 years, for the average wildlife population to be declining, Daskin said. "Areas with frequent fighting — but not necessarily the bloodiest fighting—lose 35 percent of their large animal populations during each year of war," he said.

Some animals get killed by weapons of war. Yet, many also die because of changes in social and economic conditions in an area as a result of war, said Rob Pringle. He is an ecologist at Princeton University and the study's co-author. "People in and around war zones are poor and hungrier. So they may begin to illegally hunt animals for valuable tusks or hunt protected animals to eat," Pringle said. "And during wartime, animal conservation programs do not have as much money or power to protect wildlife."

    The new study examined the entire African continent over 65 years. The researchers looked at 10 different factors that could change population numbers. They included war, drought, animal size, protected areas and human population density. The number of wars had the biggest effect on wildlife population. The intensity of the wars — measured in the number of human deaths — had the least effect on animals.

    City trees grow faster and die younger than trees in rural forestry, a new study finds. Over their lifetimes, then, urban trees will likely absorb less CO₂ from the air than forest trees.

    As we all know, the earth would be freezing or burning hot without CO₂. However, CO₂ is a greenhouse gas, meaning it traps energy from the sun as/heat. That makes temperatures near the ground rise. Human activities, especially the widespread burning-of fossil(化石)fuels, have been sending extra greenhouse gases into the air. This has led to a rise in average temperatures across the globe.

    Studies had shown forests readily absorb CO₂, but there hadn't been much data on whether city trees grow, die and absorb CO₂ at the same rate as forest trees do. So some researchers decided to find out.

    To figure out how quickly trees were growing, researchers tracked their diameters (the width of their trunks) between 2005 and 2014. A tree's diameter increases as it grows, just as a person's waist size increases as they gain weight. About half the weight of a tree is carbon, research has shown. Most of the rest is water. Over the nine years' tracking, the researchers found city trees absorbed four times as much carbon from the air as forest trees. However, they were twice as likely to die. So over the lifetime of each type of tree, forest trees actually absorbed more CO₂.

    City trees grew faster because they had less competition for light from their neighbors. In a forest，trees tend to grow close together，shading their neighbors. Street trees also benefit from higher levels of nitrogen (氮)in rainwater. Nitrogen helps plants grow. Waste gases from gas-burning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground. Some street trees may also have better access to water than trees in the country because the underground water pipes can leak.

Writing Competitions for High School Students in 2024

Ocean Awareness Writing Contest

Ocean Awareness Writing Contest provides a platform for young people to understand environmental issues through artistic creation and creative thoughts, explore their relationship with the changing world, and become advocates of positive change.

Competition time: The deadline for submission is June 10, 2024. Students can upload their submissions starting from December 24, 2023. 

Suitable for students: The contest is an international competition, which is open to any student aged 11—18 in middle or high school.

·Junior Division: 11—14 years old

·Senior Division: 15—18 years old

Young Authors Writing Competition

Young Authors Writing Competition is sponsored by the English and Creative Writing Department at Columbia College Chicago. The competition has grown into a yearly international con test of high school writers. You may enter up to two works (in separate files) in either of the categories: Creative Nonfiction and Creative Fiction. In the Poetry category, you may enter up to two files, but each can have 1—5 poems.

Competition time: The deadline is July 31, 2024. 

Suitable for students: Open to students in grades 9—12 worldwide

Leonard L. Milberg' 53 High School Poetry Prize

Leonard L. Milberg' 53 High School Poetry Prize recognizes outstanding works by student writers in the 11th grade in the U. S. or abroad. Contest judges are poets on the Princeton University Creative Writing faculty.

Competition date: March 26, 2024

Suitable for students: Students in the 11th grade in the U. S. or around the world

The New York Times Annual Student Review Contest

The New York Times invites students to play critics and write an original review for their New York TimesStudent Review Contest. Students can review anything that fits into a category of creative expression that The New York Times covers—from architecture to music.

Competition date: April 6, 2024

Suitable for students: Students ages 11—19 anywhere in the world attending middle or high school can participate.

Sugar-free cookies, sugar-free candy, and diet soda – are these better for you? After sugar became a no-no in the nutrition and wellness world, sugar-free food and drinks acted as a replacement for once beloved sweet drinks and snacks. Being claimed to be ZERO sugar means the food and drinks are healthier, better for diabetics, and help you slim down… Right? Wrong. Sugar-free products aren't better for you. In fact, they are worse. For most sugar-free products, it means that artificial sweeteners (甜味剂) are used instead of real sugar. The problem is that these sweeteners do not come from natural sources and they can do you more harm than good.

Let's get into what these artificial sweeteners actually are. Sugar-free sugar sounds wrong because there is no such thing as sugar-free sugar. Some of these sugar-free alternatives even contain sugar and the ones that have chemicals your body often does not know how to process. Most artificial sweeteners are a lot sweeter than sugar so only a small quantity of them are needed. That's why they can market sugar-free alternatives as "low-calorie" or "no-calorie". It also means that you get no nutritional value from consuming them, which is why so many sugar-free replacements are classified as "non-nutritive". These artificial sweeteners tend to hide under some names. Actually, they are 200-600 times sweeter than sugar.

When you eat sweet stuff, your body continues to desire it and, even though your body cannot metabolize (代谢) these sugar-free alternatives, your brain does not know the difference. In turn sugar-free alternatives relate to weight gain and Type-2 diabetes. Besides, artificial sweeteners also damage your gut's ability to break down sugar which impacts everything you eat. In other words, your body doesn't know how to handle artificial sweeteners because they have nothing real to process.

Here is a good rule of thumb: stay away from artificial sweeteners and look for non-sugar, natural sweeteners like stevia (甜叶菊) or date sugar. In the war against artificial sweeteners and real sugar, both lose. Satisfy your sweet tooth with natural sugar that comes from fruits and stay away from products claimed to be sugar-free.