The “babies” tend to be on or near me, or crying, or both. I spend a fair amount of time trying to get William to sleep, to get Elliott to get involved in something that will actually keep him happy for a little while, or to get William to play on the floor for 10 minutes straight so that I can get something done. But, a lot of days, it seems like I'm not succeeding in any of those efforts.

    So, yesterday, a friend of mine posted a picture on Facebook. This particular friend has a baby who is about a month younger than William. The picture was of the baby, who had made his way across the floor to the toys housed along the side of the room. I just kept looking at that picture and thinking that if only William had some different toys to play with, perhaps he would stay occupied a bit longer at a stretch. But William seems so bored with all of his toys! And I am so ready for him to be ready to play. In order to find a way to make him playing longer, I kept looking at that picture. Suddenly, I realized my sons need to play closer to me.

    So I cleared off the cubby(围起来的)shelves in the playroom, and my husband and I moved it to the living room. We found all of the toys that would be safe for William and put them in the cubbies. Then, we pulled the play kitchen in.

    William was so interested in what I was doing that he sat there and played and chewed on his toys while we moved furniture. When we were done, I moved him over closer to the cubbies and he got so excited that he didn't disturb for an hour, while I made dinner and cleaned up! Even Elliott played happily for a few hours. It was a dream come true! And I got to know that my lack of happy children was because of my desire for a toy—free living room.

    Life-Changing Science Discoveries

    Here's a look at some discoveries that have changed the world. It's impossible to rank their importance, so they're listed in the order they were discovered

Micro-organism

    Before French chemist Louis Pasteur began experimenting with bacteria in the 1860s, people did not know what caused disease. He not only discovered that disease came from micro-organisms, but also realized that bacteria could be killed by heat and disinfectant(消毒剂). This idea caused doctors to wash their hands and disinfect their instruments, which has saved millions of lives.

Penicillin

    Antibiotics are powerful drugs that kill dangerous bacteria in our bodies that make us sick. In 1928, British Alexander Fleming discovered the first antibiotic, penicillin, which he grew in his lab. Without antibiotics, infections like strep throat could be deadly

DNA

    On February 28, 1853, James Watson of the United States and Francis Crick of England made one of the greatest scientific discoveries in history. The two scientists found the structure of DNA. Our genes are made of DNA and determine how things like what color hair and eye we'll have. In 1962, they were awarded the Nobel Prize for this work . The discovery has helped doctors understand diseases and may someday prevent some illnesses like heart disease and cancer.

X-rays

    Wilhelm Roentgen, a German physicist, discovered X-rays in 1895. X-rays go right through some substances, like flesh and wood, but are stopped by others, such as bones and lead. This allows them to be used to see broken bones or explosives inside suitcases, which makes them useful for doctors and security officers. For this discovery, Roentgen was awarded the first-ever Nobel Prize in Physics in 1901.

    Many businesses today use conferences as a means of discussing new plans of the company. As people are paying more attention to the environment and green problems, more businesses are looking for ways to reduce their negative effect on the environment. Many businesses do this by using Web conferencing.

    Web conferencing is a technology that allows people to communicate more effectively over the Internet. It's an easy way of hosting and attending conferences without having to leave the office. Each of the people involved in a web conference will be posted an invitation to the conference with the time and date of the Web conference on it. When the conference is ready to begin, all participants must sit at their computers and they will be connected over the Internet.

    With Web conferencing all participants attend conference from the comfort of their own desks. Obviously, in doing this no fuel is used in traveling to and from a conference, and less work is taken up in attending a conference.

    Any material to be used during Web conference is simply e-mailed to all the participants before the conference. Participants can then either choose to print material or read it on screen.

This not only saves paper but also greatly reduces mailing costs for the business.

    As a conference hall or business center isn't being used, it means that the only power that is used is the power that is used by the participants' personal computers. Similarly, conference organizers don't have to arrange for food or overnight accommodation. All this means that less energy is used.

    Often in business some companies actively choose to do business with other companies that do many things to reduce their negative impact on the environment. And Web conferencing helps you show other businesses that you are willing to work hard for the green cause.

    So Web conferencing is much cheaper and greener and more people are willing to host and attend a web conference.

    French writer Frantz Fanon once said, “To speak a language is to take on a world, a culture. ” Since the world changes every day, so does our language.

    More than 300 new words and phrases have recently made it into the online OxfordDictionary, and in one way or another they are all reflections of today's changing world.

    After a year that was politically unstable, it's not hard to understand the fact that people's political views are one of the main drives of our expanding vocabulary. One example is “clicktivism”, a compound of “click” and “activism”. It refers to “armchair activists”—people who support a political or social cause, but only show their support from behind a computer or smartphone. And “otherize” is a verb for “other” that means to alienate (使疏远)people who are different from ourselves—whether that be different skin color, religious belief or sexuality.

    Lifestyle is also changing our language. For example, “fitspiration” —a compound of fit and inspiration—refers to a person or thing that encourages one to exercise and stay fit and healthy.

    The phrase “climate refugee”—someone who is forced to leave their home due to climate change—reflects people's concern for the environment.

    According to Stevenson, social media was the main source for the new expressions. “People feel much freer to coin their own words these days, ” he said.

    But still, not all newly-invented words get the chance to make their way into a mainstream (主流的) dictionary. If you want to create your own hit words, Angus Stevenson, Oxford Dictionaries head of content development,  suggests that you should not only make sure that they are expressive (有表现力的) and meaningful, but also have an attractive sound so that people will enjoy saying them out loud.

Chinese delivery driver, Gao Zhixiao, was featured on the cover of Time magazine in March because of his sense of commitment. Alongside five others, he was picked by the magazine as one of heroes among the novel coronavirus outbreak.

Ever since COVID-19 broke out, many restaurants shut down or switched to takeout-only services. Millions of people have been staying at home to avoid getting infected. "People choose to order food online or buy fruit and vegetables to cook at home," Gao told Time. As a result, delivery orders dramatically increased, placing a huge burden on delivery company.

Born into a poor family in the Ningxia Hui autonomous region, Gao started to make a living in Beijing at age 16. After the novel coronavirus broke out, Gao hesitated for a second to continue working, but then picked up orders because he thought customers might be in need.

Due to the danger of person-to-person transmission, Gao must take care to avoid spreading viruses during his route around Beijing, including taking a regular health test and spending 20 minutes disinfecting his motorcycle and clothes each morning. Besides delivering goods, Gao once willingly cooked for an elderly customer who was living alone at her home.

It is the commitment of ordinary people like Gao that has made the biggest contributions in the fight against COVID-19.

More and more teenagers are becoming unwilling to exercise worldwide. Australia, a nation that prides itself on its outdoor culture, is doing particularly poorly. It is currently ranked (排名) 140th out of 146 countries for teenage exercise levels. The data shows that 85%of girls are physically inactive compared to 78% of boys. In Australia, less than 1 in 10 teenagers aged 12 to 18 are meeting the recommended levels of physical activity. 

The current guidelines and evidence show that teenagers should be doing at least 60 minutes of physical activity per day. This should include muscle and bone strengthening activities on at least three days per week, meanwhile limiting recreational screen time to a maximum of 2 hours per day. 

Not being active can cause a range of health conditions leading to early adulthood and beyond. Adolescents may have decreased bone and cardio-metabolic (心脏代谢的) health which leaves them facing an increased risk of chronic disease (慢性病) in later life, including type 2 diabetes, heart disease, high cholesterol, and decreased fitness. If you're not moving enough you're also at an increased risk of being overweight or obese, with data already showing that 29.8% of teenagers (14-17) are classified as overweight or obese. 

So how can we get teenagers to exercise more? Firstly, high schools should place more importance on lunchtime and allow 1-hour breaks that increase physical activity. We should also encourage teenagers to be active on their lunch break. Parents and guardians also have an important role to play and should aim to devote 1 hour a day to moving more. This does not need to be 1 full hour and can be broken down into two 30-minute parts. The most important factor is to identify your teenager's interests and needs surrounding their physical activity.

Don't be afraid to ask for help in finding a safe and fun exercise program. A qualified exercise physiologist or exercise scientist can help your child find a way to be more active that is suited to their needs, age of development, and interests.