—I agree. It can make two countries understand each other better.
—Yes, I am. Besides it, I also do well in playing the violin.
—Oh, dear. That means we will live in a different place for a long time.
— Really? If it's like that, there must be many people travelling around it every year.
— So we must solve them first.
—Why didn't he tidy up his bedroom himself?
—Let me kill them.
A
wise man was on his long journey with a young man. Night was falling 
so they decided to find a place to stay. They searched for a long time and at last found a tiny old house. A1 family lived in it. They gave the two visitors a warm welcome and prepared a simple 2 for them including fresh milk and cheese.
After the meal, the wise man asked how they made a living in such a poor place. In a low voice the husband replied, "We have a 3. We sell her milk to our neighbors and keep some for 4own needs-make some cheese and cream. "
The next morning, the two visitors continued their 5. After they walked a few miles, the wise man said to the young man, "Go back and push the cow off the cliff (悬崖）. "Why? Without the cow, they will have nothing. " The wise man repeated his order, "Go back and 6 the cow. "
The young man was worried about the future of the family. But 7 he returned to the old house and did as the wise man told him.
A few years later, the young man travelled on the same` road. He decided to visit the family again. To his surprise, he saw a large house with a beautiful garden there.
He knocked on, the door and-a well-dressed man answered it. He was; the son of the family.
The man invited him to enter the house and told him 8 their life changed. "You know, we had 9 but a cow to keep us alive years ago. But one day she fell off the cliff and died. We had to come up with new ways of making a living. You see, we are much 10than before. " At his words, the young man smiled.
The Boston Museum of Science has an extensive collection of exciting science-based exhibits.
The following sections are the brief introduction.
Museum of Science Highlights
The main Museum of Science Highlights building offers hands-on taxidermy(动物标本) and a butterfly garden. Also, you can see real chickens hatching(孵化)from the eggs and check out the natural animal habitats.
Children's Discovery Center
For the kids, the Boston Science Museum has a discovery Center located directly across from the musical stairs. It offers a safe, enclosed play area specifically designed for children under five.
Theater of Electricity
The Van de Graff generator(发电机)provides a risk-free opportunity to witness lightning at a close range. Lighting shows are daily at 12:00 noon and 2:00 pm.
Chick Hatching Station
Learn about the development of chicks and watch them as the hatch from their shells before your eyes.
Charles Hayden Planetarium(天文馆)
The Planetarium at the Boston Science Museum is a high-tech planetarium in New England Please click here to get more information about the show time.
Hours
(Regular)Saturday to Thursday:9:00 am-5:00 pm; Friday:9:00am-7:00 pm
(Regular)Saturday to Thursday:9:00 am-7:00 pm; Friday:9:00am-9:00 pm
Cost
$23. 00 for adults,$20. 00 for children aged between 3 and 11, free for children under 3,and $21. 00 for seniors aged above 60.
Location
Science Park, Cambridge, MA map
Parking
Parking is available at the Boston science Museum for 1,000 car. The garage(停车场)fills up on busy days. If you come late, be sure to order you tickets in advance. Take public transportation if you can：Green Line to Science Park.
Since December, there have been tens of thousands of COVID-19 cases both in and out of China, caused by a previously unknown virus: novel coronavirus (新冠病毒).
It's not the first time for viruses to make headlines. Viruses have brought big trouble to humans, with their potential to cause widespread disease and death.
What are they? Viruses are considered to be non-living organisms (有机物). They can infect animals and plants, making them sick. They contain genetic materials like DNA and are protected by a coating of protein.
Unlike bacteria (细菌), viruses can't reproduce on their own. Instead, they invaded the cells of living organisms to reproduce, spread and take over. But the basic question is: where did viruses first come from?
Until now, no clear explanation for their origin exists. "Tracing the origins of viruses is difficult," Ed Rybicki, a virologist at the university of Cape Town in South Africa, told Scientific American, "because viruses don't leave fossils (化石) and because of the tricks they use to make copies of themselves within the cells they've invaded. "
Understanding the origins of viruses means fully understanding the history of their hosts—not only humans, but also bacteria, plants and other animals, which is a complicated task, says Nature.
However, there are three main theories to explain the origin of viruses. First, viruses started as independent organisms, and then became parasites (寄生者). Second, viruses evolved (进化) from pieces of DNA or RNA that "escaped" from larger organisms. The third one is that viruses co-evolved with their host cells, which means they existed alongside these cells.
For the time being, these are only theories. The technology and proofs we have today cannot be used to test these theories and discover the most plausible explanation. Continuing studies may provide us with clearer answers. Or future studies may find that the answer is even more mysterious than it now appears.
Kobe Bryant born in Philadelphia, Pennsylvania, on August 23, 1978, was a former professional basketball player for the Los Angeles Lakers throughout his NBA career (1996-2016). He was famous as "Black Mamba" or "Little Flying Man". He was 198cm tall and weighed 100kg. He had a happy family with his wife and three daughters.
He was also a famous NBA star. In his career, he got a great success and had lots of achievements, such as 15 times of all-NBA teams, once MVP in regular season,4 times of all-star MVR 2 times of final MVP,5 times of NBA championship and Two Olympic champions. The reasons for so many fans not just because he played basketball well but also for Kobe spirit called Mamba Mentality. Kobe was good at playing basketball. Most importantly, he played beautifully. Every match with Kobe was a wonderful and exciting performance. In the match, all the audience could feel his aggressiveness and the eager of victory. He improved himself by winning every game. As the leader of Lakers, Kobe never let people down. He was always calm and got the key score for the team at last just like what he said:" We do not retreat, we do not shrink, we do not run away, we insist, and then conquer our opponents?" It was famous Mamba Mentality. He never gave up even when he had ruptured his left Achilles tenden. What's more, Kobe was a famous and respected basketball player. and an approachable star as well.
Therefore, on January 27, 2020, the news of the death of Kobe Bryant shocked all fans of Kobe Bryant around the world. It was reported that Kobe Bryant died because of a plane crash with 9 people including his second daughter. Kobe generation is over with Kobe's death, but I think his Mamba Mentality will last forever.
Being safe in your everyday life needs knowledge (知识). If you remember the following information, your life will be much safer.
Always notice the environment around you. You shouldn't walk alone outside. Make sure where the public phones are. If anything dangerous happens, you can find them easily.
Your bag should be carried towards the front of your body instead of putting it on your back. When a bus is full of people, it is easy enough for a thief to take away the things in the bag on your back.
If you are followed by someone whom you don't know, cross the street and go to the other way, let the person understand that you know he or she is after you. Next, don't go home at once. You are safer in the street than you are alone in your home or in a lift.
If you have to take a bus to a place far away, try to get to the stop a few minutes earlier before the bus leaves. This stops other people from studying you. On the bus, don't sit alone. Sit behind the driver or with other people. Don't sleep.
When Shanghai introduced a new garbage-sorting policy in July last year, the city's residents (居民) took some time to get used to it. They joked that every time they took out their garbage, the staff (工作人员) standing by the bins would ask, "What kind of garbage are you?"
Starting on May 1, Beijing joined many Chinese cities by introducing a new garbage-sorting policy, People's Daily reported. Residents should sort their garbage into four groups: kitchen, recyclable, hazardous (有害的) and other waste.
These groups are represented (代表) by four different colors of trash bins – green, blue, red and gray. Those who fail to sort their trash correctly may face fines of up to 200 yuan, Xinhua reported.
The way Beijing sorts its trash sounds different from cities like Shanghai and Qingdao. These cities use four different groups: wet, recyclable, harmful and dry. Although their names are different, the groups are actually the same. Wet garbage in Shanghai is, in fact, kitchen garage. And dry garbage is the same as other waste, China Youth Daily reported.
There are other environmentally-friendly changes coming to Beijing too. Restaurants will no longer be allowed to provide disposable tableware (一次性餐具) like wooden chopsticks. Hotels and restaurants will not be allowed to provide disposable products such as toothbrushes.
To help residents sort their trash correctly, the Beijing government is offering online guidelines. If people don't know how to throw away garbage, they can search for it on the WeChat account Guanchenglishi (管城理市) to find out. By searching a key word or taking a photo, people can immediately find out which group their waste belongs in.
When you came to this world, she held you in her arms and thought to (her) that she would give you all she had.
When you were I year old, she was busy housework. Then the moment came when you called her mama for the (one)time, and you made her cry with (Joyful).
When you were 2 years old, she stood by the side of your little bed on which you were sleeping.
When you were 6 years old, she walked you to school and left you at a school is the best in your neighborhood.
When you were 12 years old, she warned you not (watch)TV shows which are not meaningful, but you didn't understand the reason and closed your door in her face.
When you were 18 years old, she drove you to the railway station, but you got on the train (excite), and didn't even notice the woman was behind you was very sad.
When you were 40 years old, she fell ill and needed your care, but you were busy doing your work, (complain) about the trouble that parents had added to their children.
And one day, she left you forever. Gone are the days when she was with you. The only thing that you can do is to remember the (happy)she brought to you.
健康文明生活方式：积极向上、合理膳食、适量运动、使用公筷
请你给出一个好建议及理由。
⑴参考词汇：公筷public chopsticks；新型冠状病毒novel coronavirus
⑵词数：80个左右（文章的开头己给出，不计入词数）；
⑶不得透露学校、姓名等任何个人信息，否则不予评分。
The outbreak of novel coronavirus makes us feel the importance of life and health.
