1 . The sharing economy is an economic model known as a peer-to-peer(P2P)based activity of getting, providing, or sharing goods and services that is often promoted by on-line platforms (平台) It allows persons and groups to make money from the assets (资产) which is not _______ .In a sharing economy, underused assets such as parked cars and spare bedrooms can be _______ when they are not used. In this way, physical assets are shared as _______ .

Concerns about the sharing economy often includes the uncertainty about _______ .While businesses offering rent services are often _______ by local governments, people who don’t have official permission to _______ rent services may not be following these rules or paying the costs. This could mean putting them in a better position that makes it possible for them to ask _______   prices to get a bigger market share.

Another _______ is that lack of watching over businesses will lead to _______ uses of both buyers and sellers in the sharing economy. There have been many cases ________ known to the public like hidden cameras in rented rooms, lawsuits (诉讼)over ________ treatment of ridesharing drivers by the platforms ________ employ them, and even murders of customers by real or ________ ridesharing providers.

There is also a fear that lots of information shared on online platforms can create racial or sex bias (偏见) among users. This can happen when users are allowed to ________ who they will share their homes or cars with, or because of the database of users with poor credit history or bad behaviour ________ .

3 . On July 10, 1980, I was aboard an old destroyer (驱逐舰), sailing from Singapore to the Philippines. The day was grey with threatening clouds. There was a typhoon _________ our way. All of us were looking forward to arriving in the Philippines as quickly as possible.

Suddenly, the lookout _________ an object floating. He announced that it was a boat with many people on it in a _________ area with reefs (礁石). The captain announced that we were heading towards the boat to offer _________. Everyone prepared for the possible rescue. I made my way to the back end of the ship. The ship _________. But along the way, I heard most of the crew were _________ about assisting the people. And I even heard an engineer _________ said, “We ought to leave them out there to die!”

We got close to the boat and sent out the whaleboat with a small crew to _________ it out further. The crew reported back it was an old wooden boat _________ with about 50 men, women and children, who were very weak. Our ship became even more __________ after that news. Some gathered any dry clothes they could __________ and I prepared the area for rest and all the medical items.

We __________ got alongside the boat, and the first thing I noticed was the strange sound of babies crying. Then came the sound of the men and women excitedly talking with pain in their voices. All their faces __________ great tiredness. We helped get them __________. The weakest received __________ while the rest got a place to rest.

During those hours after the __________, I noticed a big change in the __________ of the crew. The same __________ even helped in caring a baby girl. Outside, the weather was growing worse, but inside, everything felt __________ and pleasant. Our new friends were very happy as if they were on a luxury ship __________ an old destroyer.

4 . My past students are starting to organize a scientific conference for my 60th birthday to be held about a year from now. Their gesture reminded me of Rabbi Hanina’s words: “I have learned much from my teachers, more from my colleagues and the most from my students.”

We all started as students. Just as kids bump into things as they’re learning to _________ the world, many of us have scars from early encounters with our mentors._________ arise when those mentors attempt to establish their authority by trying to make us respect traditional thinking. Memories of these events should encourage us to do better as we_________ roles and mentor others later in life.

For example, the first advice I received from my postdoctoral mentor was to develop specialized skills and focus them on a _________ field, where I would establish myself as the world expert._________ , I decided not to follow this advice as soon as I recognized by drilling down narrowly, one often fails to make further progress. In these situations, the potential for a _________improves with a broader and more flexible perspective, which enables “out of the box” opportunities for drilling deeper around it.

Keeping this in mind, I encourage my students to think broadly and _________ about the most exciting problems in astronomy, such as: “What happened before the big bang?”; “What will happen in our distant cosmic future?”; “What is the nature of dark matter?”; or “When did life start in the universe?”

It is customary to consider a student’s raw potential as a stand-alone commodity whose value can be_________ through examinations. But my experience taught me that young scientists do not blossom into exceptional researchers _________ they are supported by encouraging words and inspiration; these ingredients are as __________ as nutrition and water are for seeds of flowers.__________ the initial belief in the potential of a student to become a successful scientist, this outcome may not come true.

As chair of the Harvard astronomy department for almost a decade, I witnessed many examples of students who were initially very slow to make progress but blossomed academically as soon as they selected a different advisor and a new topic for their Ph. D. A good mentor__________ the strengths of the mentee. As a result, a successful mentoring experience often reflects a good __________ between a fledgling(新手的) scientist and an advisor. They should both be congratulated for their shared academic DNA.

On the one hand, mentors get a kick from Oscar Wilde’s insight: “Imitation is the sincerest form of flattery...” But on the other hand, they should allow students to break free from the __________ path with creativity. The rule of thumb is to give young scholars just enough space to explore freely and learn from their __________ without damaging the direction of their future careers. The learning curves could be steep; some of my 50 students over the past few decades started slow but eventually rose to the greatest heights. Patience is key.

5 . University students have wasted nearly £1bn on empty rooms in flat shares and halls of residence that they have been unable to use because of coronavirus restrictions this _______year, according to a new estimate.

The average student has so far paid £1, 621 in rent for empty rooms for which they have not received a _______, according to an annual survey of 1, 300 university students by money advice website Save the Student.

Two in five (43%) respondents said they had spent under three months on campus, while nearly half (46%) would have made _______decisions about where to live had they understood the likely impact of the pandemic on their education. One in three plan to ask their landlords for a break clause next year to give them more _______.

Hillary Gyebi-Ababio, the National Union of Students’ vice-president for higher education, said: “Students have been consistently _______during this pandemic. We are seen as cash cows, with many _______paying extortionate rents for properties they either cannot use or cannot afford.”

Students’ anger with high rents, which Save the Student estimates take up three-quarters of their maintenance loans at an average of £146 per week, _______on UK campuses this term as students launched the largest rent strike in 40 years.

There has been a patchy response from universities, private halls of residence and landlords, with some _______discounts while others have offered full rebates. The survey suggests a third of students have been offered a discount, which averages at £75, though this has been _______to just 6% of students in private rentals. Half of those surveyed were unhappy with their accommodation provider’s response.

On 14 February, 92 students at the School of Oriental and African Studies became the first to ________the outstanding 50% instalment of their tuition fee payments in protest at their university’s coronavirus response. They were ________by 1, 000 students-a fifth of the student body-who signed a petition asking for fee reductions.

The government has so far responded to students’ financial concerns with £70m in additional hardship funding, a figure that falls short of more ________packages in Scotland, Wales and Northern Ireland.

Most students have been asked to remain at the address where they spent Christmas-in many cases their family homes-during lockdown. Plans for their ________are expected to be announced next week, ________university leaders are preparing for the possibility that many students will not be allowed on campus until 17 May, shortly before the end of the teaching year. St Andrews University and the London School of Economics have already told students that most will study online for the ________of the year.

7 . Zhang Guimei, who has ________ her 40 years to education in a China’s southwestern area, is a “mother” and headmaster who has ignited (点燃) the hopes of many girls with the light of ________.

At 17, she left her hometown Heilongjiang for Yunnan province. While teaching in Huaping county, she saw many girls ________ of school due to poverty. It saddened her very much and made her ________ that an educated female is able to change the situation of poverty in a family and even the fate (命运) of three generations. In 2002, Zhang was ________ to build a free all-girls high school, in hope of changing the future of the girls in the mountains and lifting them out of poverty.

In 2007, Zhang ________ a report in Beijing at the 17th Communist Party of China (CPC) National Congress. Her report “I have a dream” made her dream of building a free all-girls high school ________ to all.

A year later, Zhang’s school was ________, becoming the first free all-girls high school in China. Before it was set up, less than 50 percent of the students in Huaping took high school entrance exams. However, the figure ________ to over 90 percent last year. In the past, rural girls in the county often had no choice but to ________ at a young age. Today, an ________ number of them are going to high schools for education. During the past 13 years, the school has helped over 1,800 students ________ their dreams of going to universities.

Due to her selfless work, Zhang was ________ CPC’s top honor July 1 Medal at the Great Hall of the People in Beijing. At the ceremony, she said: “The things we have done are what many CPC members are doing every day. ________ I’m still capable, I will stand in the classroom to give my all, which I will never ever ________” she remarked.

10 . When it comes to nutrition, people in the United States often make poor choices. Sometimes bad eating habits are not the consequence of a lack of nutritional information or the unavailability of nutritious foods; some people simply choose to eat _______. They prefer to eat only the foods that taste delicious to them. Unfortunately, the decision to eat poorly has lasting _______. As many as half of all Americans are overweight. _______, many Americans suffer from conditions such as heart disease, high blood pressure, and adult-onset diabetes(糖尿病) that can also result from these poor lifestyle choices. If we want to live long, healthy lives, we must make better nutritional decisions. Otherwise, we could be _______ our health and our futures.

Proper nutrition begins with _______. The United States Department of Agriculture(USDA) issues food guidelines to help people to make appropriate nutritional choices. These guidelines are _______ in a USDA chart called the Food Guide Pyramid. The Pyramid is based on research into the specific types of nutrients needed for disease resistance and proper body weight.

According to the Pyramid, Americans should get most of their daily calories intake from bread, cereal, rice, and pasta, eating 6 to 11 servings of these foods per day. Whole-grain products are the best. The larger numbers of servings are only _______ people such as athletes, whose work includes a great deal of physical activity. Following this category are the fruit and vegetable categories, with a total suggested _______ of from 5 to 9 servings per day. This _______ the importance of fiber, vitamins, and minerals in maintaining a healthy lifestyle. The Pyramid’s other ________ include 2 to 3 servings of dairy products and 2 to 3 servings from a group that includes meat, fish, beans, and nuts. The USDA recommends that fats and sweets be eaten sparingly(一点点地).

There are many risk factors that ________ poor health. Among these are such lifestyle choices as improper nutrition and ________ exercise. Current research by the American Heart Association shows that heart disease very often begins when a person is a child. ________ this, many Americans think they can postpone healthy eating and proper exercise until they have health problems. Unfortunately, diseases are not generally ________ until symptoms begin, and by then it may be too late. To live long and productive lives, we must make proper choices now, including healthy ________ choices.