The gray-haired lady can't wait to leave the building to search for her dad. Unless watched, she will walk in the streets in an effort to find her father, who died 30 years ago.

    Not all cases of Alzheimer's disease look like this, but Alzheimer's is a serious disease that is said to be the fourth or fifth leading cause of death for people over age 75. It is said that about three percent of the U.S. population over age 65 have Alzheimer's. In the early stages; people may exhibit short-term memory loss. Some may experience changes in personality, easy to be angry. As the disease progresses, patients might lose the ability to move and may be unable to speak or move at all. This progressive disease generally lasts 8 to 10 years before death occurs.

    While no one is certain what causes these changes in the brain's nerve fibers, their effect is certain. Alzheimer's destroys not only the patients, but also spouses（配偶）, friends and families.

    What should you do if you notice progressive memory loss in yourself or a loved one? Have the person examined by a doctor who is a specialist in the treatment of Alzheimer's disease. Though many reasons other than Alzheimer's disease may cause memory loss, its early diagnosis（诊断）and treatment may delay some of the most serious effects.

    What feeling will you likely experience if a loved one suffers from Alzheimer's disease? A person will often go through the various stages of sadness, shock, anger, and so on. If the spouse develops the disease, you may experience hurt and disappointment when he or she doesn't remember you are married.

    Life for the Alzheimer's patients and their loved ones will never be the same as the disease progresses, bringing a deep sorrow, loss and even anger towards God. No matter what feelings are present, facing them honestly will serve one better than burying them.

    In England, people often talk about the weather because they can experience (经历) four seasons in one day. In the morning the weather is warm just like in spring. An hour later black clouds come and then it rains hard. The weather gets a little cold. In the late afternoon the sky will be sunny, the sun will begin to shine, and it will be summer at this time of a day.

    In England, people can also have summer in winter, or have winter in summer. So in winter they can swim sometimes, and in summer sometimes they should take warm clothes.

    When you go to England, you will see that some English people usually take an umbrella (伞)or a raincoat with them in the sunny morning, but you should not laugh at them.

    If you don't take an umbrella or a raincoat, you will regret (后悔) later in the day.

    Traditionally, robots have been hard, made of metal and other rigid material. But a team of scientists at Harvard University in the US has managed to build an entirely soft robot-one that draws inspiration from an octopus (章鱼).

    Described in science journal Nature, the "Octobot" could pave the way for more effective autonomous robots that could be used in search，rescue and exploration. "The Octobot is minimal system which may serve as a foundation for a new generation of completely soft, autonomous robots" the study's authors wrote.

Robots built for precise, repetitive movements in a controlled environment don't do so well on rough terrains (地形) or in unpredictable conditions. And they aren't especially safe around humans, because they're made out of hard and heavy parts that could be potentially dangerous to their users.

    So researchers have been working on building soft robots for decades. They're taken inspiration from nature, looking to animals from jellyfish to cockroaches, which are often made up of more flexible matter.

    But creating a completely soft robot remains a challenge. Even if engineers build a silicone (硅酮) body, it's still a grand challenge to construct flexible versions of essential parts, such as a source of power.

    "Although soft robotics is still in its early stage, it holds great promise for several applications, such as search-rescue operations and exploration," Barbara Mazzolai and Virgilio Mattoli of the Italian Institute of Technology' Center for Micro-BioRobotics, wrote in a comment. "Soft robots might also open up new approaches to improving wellness and quality of life."

    The clock always seems to be ticking rather too fast in the doctor's office and the queue of patients outside the door seems to be pressing rather too hard. Some say it's high time for the model of short, sharp one-to-one appointments to give way to shared medical appointments (SMAs共享医疗预约).

    SMAs are doctor-patient visits in which a group of patients receive patient education and counseling (咨询), physical examination and medical support in a group setting. Typically SMAs are designed to have one or more doctors attend to a group of patients who share a common illness or medical condition. In contrast to one-to-one visits, SMAS provide a longer appointment time-frame as well as the opportunity for patients to have improved access to their physicians and meanwhile pick up additional information and support from peers.

    However, doctors who have pioneered the shared appointment approach report that there are significant challenges involved. Dr. Sumego, director of shared medical appointments, Cleveland Clinic, identifies culture change as the most significant challenge. Physicians and nurses are trained in a model of personal service and privacy; the SMA approach is a fundamental challenge to those fixed ideas. They need shared goals and a way of testing the innovation against agreed standards. Dr. Sumego says, "The physicians may be worried about the possible chaos and efficiencies that are marketed. They also have to make the patients understand what their appointment is, and what the expectation is."

    "So, if an organization was looking to start shared medical appointments, I would advise them to start the buy-in from a few champion physicians, develop the work-flow and develop some experience. Provide some support behind what that best practice should look like. Create some standards so that, as the concept spreads, you can employ that experience to start the next shared medical appointments and the next."

    A new law came into use in Shanghai on Monday, requiring every individual, families and companies to sort (分类) their trash into different trash cans. Locals are now required to separate trash into four kinds: food waste, residual waste, harmful waste and recyclable waste. According to the new law, a 200-yuan fine can be given to individuals or families who do not follow it. {#blank#}1{#/blank#}

    On the first day of practice of the rules, it was found that 38.1 percent of hotels and 33.2 percent of companies didn't meet the requirements. {#blank#}2{#/blank#} The success in residential (居民的) neighborhoods was a result of early practice in pilot（试点的） neighborhoods around the city, which had caused mixed feelings among the public since June.

    {#blank#}3{#/blank#} Some people praised Shanghai for being a role model and taking active steps to solve the trash problem in big cities, while others complained about the inconvenience the rule has brought to their daily lives, and made jokes about sorting their garbage.

    The final goal of the trash sorting program is to reduce waste and increase recycling. Shanghai's 24 million residents produce 56, 000 tons of trash every day. {#blank#}4{#/blank#} Actually, Shanghai is not fighting alone in the battle against trash disposal, as trash sorting has been popular nationwide. {#blank#}5{#/blank#} Those cities will set up a basic system to classify and dispose of their household garbage by 2020, and by 2050, cities at the prefecture level (地级) and above should have the system in place.

A. Only 7.4 percent of the residential neighborhoods needed to be corrected.

B. Sales of trash cans on Taobao also increased before the regulation took effect.

C. On Sina Weibo, the topic of trash sorting has caused a heated discussion.

D. People in different cities have different attitudes towards sorting their trash.

E. Most of the trash ends up being buried, which wastes precious land and can pollute water and soil if not solved properly.

F. The country plans to have 46 major Chinese cities to join in it, including Beijing and Guangzhou.

G. And for companies, the fine can hit 5, 000 to 50, 000 yuan.

Every year, thousands of teenagers participate in programs at their local art museums. But do any of them remember their time at museum events later in life? A new report suggests that the answer is yes--and finds that arts-based museum programs are credited with changing the course of alumni's（毕业生的） lives, even years after the fact. 

The Whitney Museum of American Art, the Walker Art Center and the Museum of Contemporary Art, Los Angeles recently asked researchers to conduct à study to find out how effective their long-standing teen art programs really are. They involved over 300 former participants of four programs for teens that have been in existence since the 1990s. Alumni, whose current ages range from 18 to 36, were invited to find out how they viewed their participation years after the fact. 

Among the alumni surveyed, 75 percent of them thought the teen art program experience had the most favorable impact on their own lives, beating the family, school and their neighborhoods. Nearly 55 percent thought that it was one of the most important experiences they had ever had, regardless of age. And two-thirds said that they were often in situations where their experience in museums affected their actions or thoughts. 

It turns out that participating in art programs also helps keep teens keen about culture even after they reach adulthood: Ninety-six percent of participants had visited an art museum within the last two years, and 68 percent had visited an art museum five or more times within the last two years. Thirty-two percent of alumni work in the arts as adults. 

Though the study is the first of its kind to explore the impact of teen-specific art programs in museums, it reflects other research on the important benefits of engaging with the arts. A decade of surveys by the National Endowment for the Arts found that the childhood experience with the arts is significantly associated with people's income and educational achievements as adults. Other studies have linked arts education to everything from lower dropout rates to improvement in critical thinking skills.