All too often, a choice that seems sustainable(可持续的)turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol(乙醇) for fuel from corn. Corn is a renewable resource —you can harvest it and grow more, almost limitlessly. So replacing gas with corn ethanol seems like a great idea. 

    One might get a bit more energy out of the ethanol than that used to make it, which could still make ethanol more sustainable than gas generally, but that's not the end of the problem. Using corn to make ethanol means less corn is left to feed animals and people, which drives up the cost of food. That result leads to turning the fallow land –including, in some cases, rain forest in places such as Brazil—into farmland, which in turn gives off lots of carbon dioxide (CO) into the air. Finally, over many years, the energy benefit from burning ethanol would make up for the forest loss. But by then, climate change would have progressed so far that it might not help.

    You cannot really declare any practice “sustainable” until you have done a complete life-cycle analysis of its environmental(环境的) costs. Even then, technology and public keep developing, and that development can lead to unforeseen and undesired results. The admirable goal of living sustainably requires plenty of thought on an ongoing basis.

    Since his early childhood, G. A. Minton has always been a faithful fan of science fiction and horror. Whenever a scary movie was playing at the local theatre, he was there in attendance with his friends, loudly screaming in terror.

    In his everyday life, Minton likes playing the game of golf most, having lettered on his high school golf team. In addition to writing, he also enjoys reading, traveling, fishing, swimming, working out, listening to hard rock music, and watching great movies－especially those about horror, science fiction, mystery and comedy.

    Strangely enough, it was only after Minton was knocked down by a drunk driver and suffered a closed-head injury that he developed a new found passion for writing. After the car accident, he suffered from both memory loss and problems communicating with others, which frustrated him to no end. He had to go to see his doctor on a regular basis and for weeks he had to take medicine used by patients who are suffering from Alzheimer's disease. Luckily, his brain slowly began to mend itself.

    At the end of the healing process, something was very different. He noticed that he had developed a strong urge to write down a story that had formed in his mind. That's how his first novel Trisomy XXI was born. He penned（写作）it in only three months. He began with chapter one and wrote in a freestyle manner—almost in a stream of consciousness. The narrative flowed freely from his vivid imagination, creating a thrilling tale of terror that is formed from an ordered sequence of events.

    One could think that the damaged neurons（神经元）had rearranged themselves into a different pattern, and thus improving the creative elements in his brain. Besides, stranger things have happened! He has recently completed his second novel. Currently, his brain is busy at work, seriously processing the text for another -story of the terror-one that will both entertain and horrify its unsuspecting reader!

    Apple announced its new iPhones last week, but competitors' mobile phones can do many of the same things for less money.

    The new iPhone 8 and X have wireless charging, edge-to-edge glass screen and double cameras. But all of these features are already available in smart phones from China's Huawei and Oppo, and Korea's Samsung. While Apple asks buyers to pay $1,000 for its high-end model, some Asian phone makers can offer similar features for less.

    At one time, Chinese manufacturers copied features and designs from others to produce low-cost phones. But they have now added high-end features to their phones and they control nearly half the global mobile phone market.

    Media MarktSaturn is Europe's biggest electronics seller. A spokesperson for the store told Reuters that,“Huawei is seen as a relevant competitor to Apple and Samsung by covering all major price points and placing big investments in marketing and sales. '' She also said that the Chinese companies Huawei, ZTE, Lenovo and TCL were among the top-10 best-selling smart phones in its stores.

    Chinese manufacturers' fast growth has been fueled by strong sales in China. But they now export 40 percent of their smart phones. That is almost double the number from just three years ago, according to the Hong Kong investment company CLSA.

    Huawei is currently the world's third largest phone maker behind Samsung and Apple. According to research company Canalys, the Chinese company is getting closer to second-place Apple and might overtake it later this year.The Chinese company even made fun of Apple's new facial recognition feature with a Facebook video called "Real AI phone." Huawei plans to show its top-of-the-line Mate 10 phone on Oct. 16. The phone will have artificial intelligence features such as instant translation and image recognition and will cost less than $1,000.    Other Chinese companies are looking to enter the high-end smart phone market.

    Many young people these days adore the advertised magazine body and become too focused on attaining this image instead of worrying more about what lasts and even grows over time. But could you imagine being considered beautiful for years, and suddenly being ugly after moving to another continent? It is a sad reality that people don't realize how vacillating the idea of beauty can be from one country to another.

    Think of the most typical American girl you know. Is she blonde-haired with white skin and light blue eyes, and does she love shopping or sports? Now place this girl in the heart of Africa, where beauty is placed on what you can control. The Maasai tribe in Kenya focuses on how clean people are, and how stylish their piercings (穿孔) are. This tribe's culture is to be a brave fighter, so they will cut their skin with patterns in it to show that they are strong. If you don't look fierce, you are not beautiful.

    Other countries like North Korea and South Korea have their own unique views on beauty. In an interview, a woman who has lived in both North Korea and South Korea claims that beauty in North Korea is based more on your ability to be a good woman and wife. She says that women in North Korea are less concerned about fashion and beauty in the physical sense. She says they did have a time when big eyes were a big deal and everyone wanted to get double eyelid surgery. This is something extreme and could perhaps be influenced by Western culture. But don't you think the idea of getting surgery done to look more attractive is crazy?

    Twenty years ago, most experts believed that differences in how boys and girls behaved were mainly due to differences in how they were treated by their parents, teachers, and friends. It's hard to cling to that belief today. Recent research has shown that there are biological differences between boys and girls. Understanding these differences is important in raising and educating children.

    For example, girls are born with more sensitive hearing than boys, and the difference increases as kids grow up. So when a grown man speaks to a girl in what he thinks is a normal voice, she may hear it as yelling. Conversely (反过来), boys who appear to be inattentive in class may just be sitting too far away too hear the teacher.

    Likewise, girls are better in their expression of feelings. Studies reveal that negative emotions are seated in an area of the brain called the amygdala. Girls develop all early connection between this area and the cerebral cortex (大脑皮层), enabling them to talk about their feelings. In boys these links develop later. So if you ask a troubled adolescent boy to tell you what his feelings are, he often cannot say much.

    Dr. Sax, an advocate of single-sex education, points out that keeping boys and girls separate in the classroom has yielded striking educational, social, and interpersonal benefits. Therefore, parents and teachers should try to recognize, understand, and make use of the biological differences that make a girl a girl, and a boy a boy.

Dear Jamie,

    I'm writing to you because I feel like we've grown distant lately. I know you have two little babies now that take up most of your attention, but I want to remind you that I'm your dog. My name is Max, and I am here long before those two troublemakers joined our family. The older one, Hannah, keeps trying to ride me. She knows I'm not a horse, right? Let's remember that I'm 11 now. That's 77 years old to you, friend. So how about showing me some respect I deserve?

    Anyway, I'm still an official part of this family. I know I have made mistakes with food, but those kids are covered with so much food. It's like an alcoholic living in a wine store. I have tried harder not to eat their food, but this business of forcing me to the backyard for most of the day was unacceptable.

    And when you told your wife Kate that you wanted to drop me off in the valley to live with wolves, well, that hurt my self-respect. And did you have to do it right in front of me? I might be old, but I can still hear.

    Remember the old days? By the time you came into the picture, I had already known Kate for three years. And then you came along. I knew she liked you so I welcomed you into our world. I remembered one night, she asked me if I thought you were the one. I barked "yes" repeatedly because I thought you would take great care of us. And you did.

    Look, I know you're a father of two now, but please try to include me a little bit more. That's all I'm asking.

Sincerely yours,

Max the Puggle