"Write letter A," I said, pointing to the letter written on the chalkboard. Students started to turn their heads with confused （困惑的） loos on their faces. They didn't speak English. How did they say "write" in Swahili? I was trying hard to remember that word from my Swahili 1 when a little girl started to gently touch my hair with a comforting smile. I suddenly felt 2 .
Taking my hand in hers, the little girl 3 me to the field to find the other kids playing. The kids had pure smiles. They made me 4 at home in this foreign country.
When I walked along the roads of Arusha, the women in scarves would stop washing the clothes, 5 and kindly say "mumbo". I would respond with "poa". I immersed （沉浸） 6 in the Tanzanian culture and didn't want to leave.
I remember 7 my trip, I walked downstairs to the kitchen, finding my mom cooking dinner I asked her, "Hey, Mom, can I go and be a(n) 8 in Africa this summer?" There was no answer. Did she 9 me? Smoke from the stove covered her face, which made it difficult to 10 her thoughts. 11 she lifted her head with shock; "What? Africa?"
My family don't like travelling. The only time I had ever been out of the country was to visit my mother's family in Brazil, 12 Africa is too far away for my mother to imagine. I explained the volunteer service trip to 13 kids in Africa and my strong wish to volunteer. She let out a sigh and then a encouraging 14 .
My journey to Tanzania gave me a chance to understand how different the life is in Tanzania compared to that in America, and how 15 I am with the good life I have. I'll never forget this experience.
People are always good at inventing things. Let's learn about some inventions that can help people a lot.
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Scientists in London say they've found the best diet （饮食） for both humans and the planet. If the world followed the "planetary （行星的） health" diet, the scientists said that each year more than 11 million early deaths could be prevented. For the health of the planet, they said the diet would save more land, water and animals.
This new food plan is the result of a three-year project. Tim Lang, a professor at Britain's University of London, said that the world's. population was expected to grow to 10. billion by 2050. If we want to feed everyone, we all need to change what we eat and the way we eat by improving food production and cutting down food waste. So, what do you eat on the "planetary health diet?
It mainly has to do with plants but it still has small amounts of dairy products （乳制品）, fish and meat. The diet calls for cutting red meat and sugar by 50 percent and doubling the. amount of fruit, vegetables and legumes （豆类）.
Food situations around the world are different. In certain areas, the diet would mean great changes. People in North America, for example, eat 6.5 times the recommended （推荐的） amount of red meat, while people in South Asia eat only half the amount suggested by the new "planetary health" diet.
Reaching that goal in vegetables would need big changes in other areas. In Sub-Saharan Africa, people eat 7.5 times the suggested amount of vegetables.
Walter Willett of Harvard University said that more than 800 million people around the world didn't get enough food while many more had very unhealthy diets. The scientists agree that their goal will be difficult to achieve. But for them, doing nothing is not a good choice. Willet said, "If we can't tally make it, it's better to try and get as close as we can."
As the epidemic （疫情） keeps improving, life in China is slowly returning to normal and people have once again started travelling.
From Shanghai to Anhui Province, main places of interest in China welcomed thousands of visitors last weekend. At the end of March a travel agency did a survey （调查） of 15,000 people across 100 cities in China. Some said they would be ready to travel in May. But most of the people, about 90%, would only choose to travel across the country.
According to the survey, about 61% of Chinese travelers said that they were going to travel again by August. Another small survey of 1,000 people got some similar results to the first survey. In this survey, about 77% of those people said that they'd choose to stay in China for their first trip after the epidemic.
Since the epidemic is getting worse and worse in the US, the UK and some other countries, international air travel has nearly stopped. It's hardly surprising that many Chinese travelers would choose to travel near home because China has successfully got the epidemic under control. Also, the two surveys showed that most travelers were pretty serious about safety and comfort on their trips. "Travelers always want to feel safe and hope there is no virus at each touching point along the journey," a survey leader said.
In addition, many travelers will choose short trips. In their opinion, if any problem happens, they can return home more quickly. According to the two surveys, the most popular way to travel will be independent, self-guide trips and smaller group tours. To stay away from risks, most travelers won't take the tour bus or ship to travel around.
On December 30,2019, Beijing added a new 40-square-kilometer area for testing self- driving cars with passengers, as the capital pushed for further development of the technology, according to the Beijing Municipal Commission of Transport.
The city opened 111 roads with a distance of about 322.46 km in the Beijing Economic Technological Development Area in the southeast suburb （郊区） for the tests. The city also issued （颁发） a license for carrying passengers in self-driving car tests to 40 cars from Chinese Internet giant Baidu.
Rong Jun, an officer of the Beijing Municipal Commission of Transport, said that self- driving had gradually developed from road tests to passenger-carrying tests both in China and abroad.
The city issued regulations for the testing of self-driving cars. The regulations gave the green light to road tests for self-driving cars carrying passengers.
For safety reasons, test cars must have self-driving data recorders and an emergency system （应急系统） that allows a human to control the driving system by hand, according to the regulation.
By December, the city had issued road test licenses to 77 cars from 13 companies, which traveled over 1 million km. So far, Beijing has opened 151 roads with a distance of about 503.68 km, ranking the frst in the country.
Test spaces for intelligent connected cars in the capital are expected to reach 500 square kilometers by 2022 and a total of 2,000 km of roads will be open for testing.
Six cites in China have allowed passenger carrying tests on self-driving cars, including Beijing, Shanghai and Guangzhou, according to The Beijing News.
In November, 2019, a group of 30 self-driving cars started carrying passengers in the economic development zone of Cangzhou, north China's Hebei Province. It was a pilot program to cover the whole city.
For many students, chores like cooking and washing are always in the end of their to-do lists. Some even think it' necessary for their parents to take care of them. H , these life skills are important and should be taught as part of labor education. Recently, the Ministry of Education (MOE) said labor education would become a necessary c for senior high school students.
Labor education is also called education on the hardworking s . It's from chores to on-campus labor and community volunteer services.
"We should pay more attention to labor education in order to cultivate （培养） the r view of the world, life and values and develop an interest in doing labor," said Vice-Minister of Education. Through such education, students are "e. to get basic working skills for living and personal development, and have good working habits." said the MOE.
According to China Youth Daily, the labor education take six credits （学分）.Voluntary service, as a part of labor education, would take two credits. Schools are asked to make sure that there are 40 hours of voluntary service d the full three school years.
According to Xinhua, the reason why our country added labor education was that our country's young people do too little housework and look d upon labor jobs. Because of a lot of pressure in study, schools pay more attention to the academic curriculum （文化课）.
Maggie Doyne, like many high school graduates, wasn't sure what to do with her life. So instead of going (straight) to college, she decided to take a gap year and travel.
Doyne arrived in western Nepal in 2006. The country had just ended a long war which left many homeless children. With no money for food or school, many lived on the streets.
One day, while (walk) down a road, Doyne saw a little girl breaking up rocks. She soon learned that 6-year-old Hema sold the rocks (support) her family. Sadness filled the (teenage) heart and she decided to pay for Mema's tuition （学费）. Encouraged by the changes she saw about the child, Doyne had another idea. She thought, "Since I can help one child, not10?"
Then the young woman found a piece of land sale at US $5,
000. That was almost all the money she had saved from years of part-time jobs. She bought the land, and within two years the Kopila Valley Children's Home (appear).
In 2010, the Kopila Valley School (build). Now over 400 children and Doyne are having a (happy) life. Among them, over 350 children attend the school and over 50 children live in the home.
Today, Doyne lives in the home and is the "mum" to the kids. She also speaks in public, encouraging everyone to make a difference to the world. "It doesn't matter how young you are how much money you have," Doyne often says, "Start now and use what you have!"
This is a wingsuit. It looks like a bat （蝙蝠） and allows people to fly. This kind of wingsuit is not something new, but the modern ones are better than ever. The price is coming down, too. Now you can buy one for 600 to 2,000 dollars.
This is a new solar water distiller （太阳能净水装置） created by Gabriele Diamanti. It is for parts of the world where it's hard to get clean drinking water. You pour in salty water and let the sun do the work for a few hours. Then, you have clean water! Even so, they still need help to start producing the distiller.
This is an "enable-talking glove". It was invented by some Ukrainian students to allow people with speech and hearing 'problems to talk with other people. The glove turns sign language into words, and then into spoken language. What a wonderful invention! It will help lots of people.
Cameron was part of a team. The team invented the Deepsea Challenger Submarine. It can go into the lowest part of the sea. Last year, Cameron went down to the bottom of the Challenger :Deep （挑战者深渊）, the deepest part of the sea in the world. He was the first person to do this alone there, and he stayed there for three hours, the longest time so far.