It is difficult for the parents of every family to teach their children to be responsible (有责任的) for housework.

    The Shatian School in Shanghai is making its students do housework for their parents. The third graders(三年级学生) must learn how to cook and clean, sixth graders do the laundry(洗衣服) and seventh and eighth graders cook balanced meals with 15 yuan.

    Many parents think it's a good way for children to try housework but they don't know how to do it at home. With the following ideas, you really can get your children to help at home.

    If you want to make your children think that they can do everything quite right, please don't always scold(批评) if them but give them lots of praise at home. Talk more about what they did right, not about what they didn't do. If your child finishes some difficult work, give him or her a Sunday trip or a ball game with Dad as a reward.

With our already busy lives, finding time to exercise can be impossible. So maybe it would help if there was ‘a best time' to exercise.

There are clear benefits to exercising in the morning. Many of us have more free time than later in the day, and it may be easier for us to keep a morning plan. A study found that people could sleep better when they exercised in the morning or had the physical activity during the whole day. Exercising on an empty stomach（空腹）before breakfast could also have less fat（脂肪）and keep healthier.

So, good news for early birds, but what if you're not a morning person? Working out in the afternoon or evening is also good, but different. For example, your body's ability reaches the highest level in the afternoon, according to a 2010 study. Also, in the afternoon and evening, your mind is the quickest, and your heart rate and blood（血）pressure are lowest, and you aren't getting hurt（受伤）easily when exercising.

But can this happen? Deciding on if you are a man or a woman? Our bodies are different, after all, so the best time to exercise may be different too. Want to reduce（降低）your blood pressure and you are a woman? Exercise in the morning. Want to improve your heart health and you are a man? Evening is better for you. But, a 2022 study found that it's both OK for them to exercise at either time of day.

So what time is best? It seems the answer is: whatever time is best for you!

Warming temperatures and shorter winters might sound like the end of snow days. However, rising temperatures may actually cause snowstorms to drop more snow, says David Robinson. He is a professor at a university in New Jersey. He studies climate (气候) change. 

Temperature change is one of the greatest in Earth's climate change over a long period of time. It can happen naturally or because of human activities, such as burning gas and coal. Burning these fuels produces carbon dioxide (二氧化碳) and other pollutants into the atmosphere (大气层) , which hold heat in the atmosphere, leading to warmer global temperatures over time. 

But how could warmer temperatures lead to more snow? "To get snow, you need moisture (水汽) and freezing temperatures (0℃ or less) ", says Robinson. Without moisture in the air, there is no precipitation (rain or snow) . Robinson says there are signs that snowstorms are becoming stronger. This is because of this connection between moisture and precipitation. 

"The warmer the air becomes, the more moisture it holds. So, if it's warming and still cold enough to snow, you can get more snow," Robinson says. 

Of the 10 biggest snowfalls in D. C. region, five happened in the past 25 years, according to the NWS. During that same time period, average winter temperatures in D. C. increased. In 1996, the average winter temperature was 1. 8℃. In 2020, it was 6℃. 

Weather experts suggest that rising temperatures may make winter shorter and less cold. But for now, the snow is still falling. One day, winter might not have any days below the freezing temperature. Once temperatures stay above freezing, snowstorms become rain. Until then, we might continue to see strong storms. 

According to Robinson, that time could come sooner than we think. He says, "When we look back, years from now, we may see that this was the breaking point. "

Stress is a normal feeling. Everybody will feel it from time to time. Sometimes stress can {#blank#}1{#/blank#} us to move forward. But stress becomes bad {#blank#}2{#/blank#} it affects (影响) our everyday life and health. So how do you know you're stressed out? And what can you do a-bout it?

Sometimes stress {#blank#}3{#/blank#} when you don't realize (意识到) it. Do you often feel a stomachache, a headache, or get angry easily? Do you have trouble sleeping? If your answers are yes, you are {#blank#}4{#/blank#} facing a lot of stress and you may need help.

Talking about your {#blank#}5{#/blank#} with someone always helps. You can have a talk with your parents, friends, teachers or even doctors. Tell {#blank#}6{#/blank#} if you're worried about your schoolwork, or if you have {#blank#}7{#/blank#} relations with your classmates. Then you can come up with a few solutions (解决办法) together like cutting back on after- school activities, spending more time on {#blank#}8{#/blank#}communication, and going for a short holiday.

There's one important thing you need to {#blank#}9{#/blank#}: having some stress is normal. It is OK to feel {#blank#}10{#/blank#}, scared or lonely sometimes. Don't be afraid to ask for help when you're in need.

Molly and David live in a big house with their parents. Molly is twelve years old and David is fourteen years old. They are both middle school students in Zhonghua Middle School. Every morning, they get up at 6:45 and have a big breakfast. Molly eats eggs, bread and corn and David eats sandwiches and eggs. Molly usually drinks milk and fruit juice and she likes orange and apple juice very much. David always drinks cola and coffee（咖啡）. His mom tells him that it is not good for his health. 'For lunch, Molly usually eats healthy food like rice, chicken, fish and pork（猪肉） with some vegetable soup but David'only likes chicken and fish. He doesn't like green vegetables or fruit at all. When he goes shopping with his mom; he buys a lot of food to eat and he likes Latiao very much. Sometimes, his mom is not happy about him.