2 . Press your fingers into the back of your head,just above your neck. If you feel a small bony bump, you may find evidence of human evolution:it could be your body responding to common smartphone use in the 21st century.

According to a recent study,published in Scientific Reports,young people increasingly have bony bumps at the base of their skulls,right above the neck.Medical professionals call them enlarged external occipital protuberances (EEOPs, 枕外隆突).

Australian health scientist David Shahar,author of the study,told the BBC that over the past 10 years he's seen more and more patients with EEOPs. Together with other researchers from the University of the Sunshine Coast,Australia,they examined 1,200 skull x-rays from people aged 18-30. They also measured the bumps and noted each person's posture.

They found that one in four people had developed these growths. This led to their theory that smartphones are the cause.

According to their research,looking down at our phones adds stress onto the top of our spines(脊柱）。 To prevent damage to our spines, Shahar believes our bodies add fresh bony bump to help reduce the extra stress.

Most of the EEOPs measured just a few millimeters. However,several subjects were found with EEOPs as large as 30 mm.

In his report,Shahar said the results “highlightedthe need" for intervention. In other words, we need to change our posture while using our phones.

Many people assume our bones are solid and unmoving once we reach adulthood. In reality, they are alive and covered with blood vessels, which allows them to develop in unique ways for each person.

Aside from EEOPs, other noticeable recent changes in human bodies include shrinkingjaws, narrower elbows and generally smaller skeletons(骨骼）。The human body is adapting to modern life, so who knows what people in the future might look like?

3 . When it comes to the most famous 20th century painters of the United States, Grandma Moses should be mentioned, although she did not start painting until she was in her late seventies. As she once said to herself:"I would never sit back in a rocking chair, waiting for someone to help me." No one could have had a more active old age.

She was born on a farm in New York State, one of five boys and five girls. At 12 she left home and was in domestic service until at 27 she married Thomas Moses, the hired hand of one of her employers. They farmed most of their lives, first in Virginia and then in New York State, at Eagle Bridge. She had ten children, of whom five survived; her husband died in 1927.

Grandma Moses painted a little as a child and made embroidery(刺绣) pictures as a hobby, but only changed to oils in old age because her hands became too stiff(僵硬的) to sew and she still wanted to keep busy and pass the time. Her pictures were first sold at the local drugstore and at a market and were soon noticed by a businessman who bought all that she painted. Three of the pictures were exhibited(展览) in the Museum of Modern Art, and in 1940 she had her first exhibition in New York. Between the 1930's and her death, she produced some 2,000 pictures:careful and lively portrayals of the country life she had known for so long, with a wonderful sense of color and form. "I think really hard till I think of something really pretty, and then I paint it" she said.

4 . Why play sports? You might say “to get exercise” and you would be right. To have fun? That's true, too. But there's more.     1     According to the Women's Sports Foundation, girls who play sports get a lot more than just fit.

Girls who play sports do better in school. You might think that athletics will take up all your study time.     2     Exercise improves learning, memory, and concentration, which can give active girls an advantage in the classroom.

Girls who play sports learn teamwork and goal-setting skills.     3     When working with coaches, trainers , and teammates to win games and achieve goals, you're learning how to be successful. Those skills will serve you well at work and in family life.

Sports are good for a girl's health. In addition to being fit and keeping a healthy weight, girls who play sports are also less likely to smoke. And later in life, girls who exercise are less likely to get breast cancer or osteoporosis(骨质疏松症).

Playing sports improves self-confidence.     4     Why? It builds confidence when you know you can practice, improve, and achieve your goals. Sports are also a feel-good activity because they help girls get in shape, keep a healthy weight, and make new friends.

    5     Playing sports can reduce stress and help you feel a little happier. How? The brain chemicals leased during exercise improve a person's mood. Friends are another mood-lifter. And being in a team creates tight bonds between friends. It's good to know your teammates will support you-both on and off the field!

5 . After I graduated from the university, I got so pressured in finding a job. I did a lot of _________ both online and handing in person to a particular company. It occurred, one day I went to _________ my CV (履历) to a certain company and I wanted to meet the human resource manager in person because I believed it was a better _________ than leaving my CV at the reception.

Unfortunately, in this company the _________ did not allow me to see the human resource manager and _________ asked me to just leave the CV with her and that she would _________ it. I was really _________ since I knew she wouldn't do that and my CV will just be thrown in the trash can, I thought so because it usually _________ a lot in some other companies. So I just left with my head _________ and never thought about it again since I knew I would never get any __________ from the company.

Weeks passed and one day I received a call from a(an) __________ number and guess what...it was the human resource manager of that same company. I was really shocked since I did not __________ it at all. So he said he received my CV and that he would __________ it.

I was so happy and felt bad at the same time for __________ the receptionist the other day. This humbled me and it was a __________ to believe in people and not assume things just because of the norm.

6 . As spring arrives, farmers around the world are making decisions about what crops to plant and how to manage them. In the U. S., farmers typically have big data to help make these decisions. These data have a clear upside. They make farms more productive. In the U.S., the past five years have seen a series of good harvests for both corn and soybean. A big part is generated by effectively using data to produce more food from the same amount of land, seed and fertilizer.

In the poorer parts of the world, however, the picture is much different. Many farmers are guided only by their history with the land and their community's traditions. Their skills and knowledge are impressive, but they suffer from a poverty of data. They rely on technical advisors for advice from governments and academic centers who often have very little knowledge of the local area. For seeds and fertilizers and other materials used in the field, they rely on companies that lack data on how their products will perform in the local conditions.

About 10 years ago, East African officials and their development partners started to explore why so few smallholder dairy farmers made profits from growing demand from urban consumers. Surveys of farmers in the region suggested poor access to veterinary(禽畜的) care and breeding assistance. An effort to provide these services has helped farmers get more milk.

Data would matter little if farming was easy and the paths to productivity were obvious. But in reality, agriculture is a complex mix of many factors, including climate, biology, chemistry, physics, economics and culture—all of which vary from region to region. In this situation, good data is necessary.

7 . Earth Hour is organized by the World Wide Fund for Nature. It's a big event usually at the end of March every year. On this evening, people “go dark”.     1    

It's true that turning off lights for just one hour saves only a small amount of power.    2    On one level, joining in Earth Hour makes people think about the problem of climate change and what we can do in everyday life to protect nature.

But on another level, a large number of people’s acting together sends a powerful message to governments and companies.     3     They begin considering green issues when big decisions.

The logo(标识) of Earth Hour is “60+” .The number 60 is for the 60 minutes of Earth Hour.     4     In fact, people who join in Earth Hour say that taking part makes them want to do more for the environment.

    5     Musicians give concerts by playing acoustic(原声的) instruments instead of electric ones, and using candles instead of electric lights. Celebrity chefs have created special recipes for families to prepare and eat by candlelight. Tree-planting sessions, group walks and runs are also among the options.

8 . Being a parent is already a life-changing experience. However, this 40-year-old dad_______an astonishing transformation after a hike with his kids.

Before Jeremiah Peterson looked like a supermodel, he weighed 290 pounds. He was only_______to lose weight after he went on a_______with his family in 2017 and became self-conscious about how quickly he was_______from the activity.

“Instead of remembering all the good_______we had made on this trip, all I can remember is this one thing that kept playing in my head over and over again: I found myself running out of breath and having to take_______way before my 9-, 7- and 6-year-old kids,” Peterson wrote on Instagram.

The dad from Missoula, Montana then was_______to get into shape.

He started by giving up drinking and_______a ketogenic diet(生酮食法). Every day for five months straight, he would hike for two hours and spend one_______hour at the gym.

After 150 days of a strict diet and lots of________, Peterson lost 92 pounds. Not only that, he can now run________up the hiking trail that once made him extremely exhausted.

Peterson now uses his story and fitness expertise to coach and________almost 100,000 social media followers---but he says that his kids are the real________for his success.

“Finding your reason that is________if you want to achieve success in life,” he wrote in an Instagram post. “If you don’t have a strong reason behind your________you are less likely to get the results.”

9 . The UK is filled with unbelievable palaces and historic castles. Now you can take 360 degree virtual (虚拟的)tours of the attractions by just clicking(点击)your mouse at home.

Buckingham Palace

The Queen's palace offers 360 degree virtual tours of rooms including the Throne Room, Grand Staircase and the White Drawing Room. There are clickable “information points" which when clicked can explain the history of the rooms. CLICK HERE

Palace of Holyrood House

The Queen's official palace in Edinburgh is packed with history. The palace is usually open year round to the public, but for those who can't visit for whatever reasons, you can take virtual tours of some of the amazing rooms including the Morning Drawing Room and Royal Dining Room. CLICK HERE

Blenheim Palace

Blenheim Palace offers 360 degree virtual tours of some of its beautiful state rooms from the grand Drawing Rooms and Saloons to the Great Hall. You can choose to listen to the audio (声首) guide which not only gives you a quick look inside, but offers lots of exciting details. CLICK HERE

Edinburgh Castle

Here is a great visual trip to Edinburgh Castle. You can visit the historic ruins and have some wonderful views of Edinburgh itself. You can also zoom in (拉近)or out to get an idea of the museums and interesting places to explore, as well as 3D models of the castle. CLICK HERE

10 . Scientists have long known that a crow （乌鸦）native to New Caledonia is able to use tools. The birds use them to remove food from deep holes. Now, American researchers have discovered a second species of crow with the same ability. They reported on their experiments with Alala crows, which are from the Hawaiian Islands.

In the experiment, the researchers placed pieces of food in holes inside the wood. The holes were too deep for the crows to reach with their beaks(鸟喙). But, by using small pieces of wood held in their beaks, Alala crows quickly got the food. They used small objects as tools, sometimes changing them by shortening too-long sticks. They also made tools from plant materials.

“The crows use their beaks as people use thumbs on their hands. Tool use is rare in the animal kingdom. ” said Chritian Rutz of University of St. Andrews. “Current evidence strongly suggests that tool use is part of the species’ natural behavioral pattern(行为模式). These birds had no special training in the study, yet most of them were skilled at handling stick tools. ”

Bird experts claim finding out that the crows use tools is important discovery. “It makes us rethink how to look at the whole tool-use idea now and encourages us to go out and look for things that we may have ignored before. ”

All the Alala crows left in the world live in Hawaii. There were less than 20 Alalas left in the late 1990s when scientists decided to bring them into a protected area. Now, it is reported that there are over 100 birds living there. Scientists plan to release a small number of the birds back into the wild later.