Every year a huge amount of waste ends up in the world’s oceans and causes problems for the animals living there.

About 80% of all marine waste is plastic from bottles and packaging, most of     1     runs into rivers when it rains and then flows into the sea. Rubbish causes problems for the animals     2     (live) in the ocean.     3     millions of tons of waste entering the ocean every year, it greatly threatens sea animals.     4     is clear that we need to do something.  

One organization that does this is Ocean Conservancy,     5     organization that started in the USA. Since 1986, it     6     (organize) International Coastal Clean-up. The event grows every year and now people are getting involved on over 6,000 beaches in more than 100 countries. Less packaging and     7     (few) products are a step on the way to more sustainable development. If rubbish     8     (pick) up from the beach, it will not cause problems for animals that eat it or become     9     (trap) in it.  

Cleaning up the oceans seems like an     10     (possible) task, but if everybody spares no efforts, one day there may no longer be a need for ocean clean-up day.

When a student takes active     1     (participate) in classroom discussions, he/she is in a better position to stay focus for a longer period of time, which in turn improves the     2     (grade) that he/she gets. Actively participating is     3     (undoubted) a crucial component of getting a much better and in-depth classroom experience, as it     4     (combine) both the auditory (听觉的) and visual learning to the process. 

If you need to be an active participant in the class, make sure to be present not just physically,     5     mentally as well. When you attend a class on a regular basis, you become comfortable     6     the classmates, as well as the professor and the overall environment. Not to forget, bringing your books and other necessary material is also     7     must to a class if you are really interested in learning. Students also prefer sitting in the front rows instead of     8     (take) the back seats or the ones in the middle, as it helps one to fully participate in the discussions. Students find it more important     9     (sit) in the front because it physically and mentally prevents them from drifting away (走神) from the lecture. The professor can easily make an eye contact with you while you are sitting in the front,     10     helps you to stay more focused and involved.

The Yin-yang diagram is an illustration of t’ai chi. Yin and yang are not     1     (complete) opposite, one of which can turn into the other. Chinese people boil down the laws of the universe, nature and the human body to this:Yin and yang are in a circle; man and nature exist in unity.     2     (base) on such philosophical ideas,     3     (tradition) knowledge and sports practice about physical and mental cultivation have been formed and passed down from generation     4     generation. Thus t’ai chi ch’uan came into being.

Chinese people believe that movement is contained in stillness and fastness is contained in slowness. T’ai chi ch’uan     5     (contain) these two kinds of energy. Do you think the most important characteristic of t’ai chi ch’uan is     6     (soft)? No. The fighting principle of it is to mobilize the internal energy flow of the human body,     7     has both speed and explosive power.

The greatest uses of t’ai chi ch’uan are for people     8     (experience) life, the true principles of movement and stillness in nature, and to maintain harmony with nature in mind and body. So far, it     9     (prove) by medical research that t’ai chi ch’uan is     10     ideal therapy against a number of chronic diseases. It can not only promote physical health, but also help ease your mind and delight your spirits.

Career training comes in all forms. As     1     important part of career training, online training has helped raise the skill levels of employees and make them better prepared for the job market. Government departments have made a series of policies to inspire workers to     2     (active) take part in online career training. Before April 18, 2020, 31 provinces     3     (set) up websites for online training companies. Besides, the Ministry of Human Resources and Social Security intended to work with some network companies and introduce digital courses covering     4     (many) than 100 jobs.

In order to encourage people     5     (take) online training, the ministry will provide subsidies (补助金) for the workers     6     receive online training. Some provinces have come up     7     a series of new measures so as to ensure the quality of online career training.

It is important to build interactive     8     (platform) for online training, such as filming courses in the workshop, so that people can gain access to more     9     (practice) skills. What’s more, it’s also necessary to     10     (strength) the guidance of online training companies and set standards related to the content and duration of the courses.

The Beijing Organizing Committee for the 2022 Olympic and Paralympic Winter Games sent a thank-you letter to volunteer applicants who were not     1    (previous) selected, and expressed gratitude for their support in the preparation work of the Games.

The letter says the COVID-19 pandemic has brought great challenges to many aspects of the preparation work, and the committee     2     (adjust) requirements for volunteers in     3    (consider) of virus control and prevention.

"    4     you were not selected as a volunteer of the Beijing 2022 Winter Olympics and Paralympics, every applicant is an excellent promoter for the Olympic spirit and volunteerism," the committee says in the letter.

Many applicants said they     5     (move) by the touching letter and posted their replies online. A netizen (网民)     6     (name) Joleen-kun said their application had been seen, which was something to be proud     7     as they were respected by the committee.

Another netizen Xiguali commented that their enthusiasm has been respected and the committee is warm to pay attention to details, thus     8     (send) a letter like this.

According to the Beijing 2022 Organizing Committee, more than 1 million people applied to serve as volunteers and nearly 20,000 were selected, most of     9     are from colleges and     10    (university) in Beijing and Hebei Province.

When the starting signal sounded, Qian Hongyan pushed herself in the pool. She     1    (win)the silver medal in the women's 100-meter breaststroke(蛙泳)final in the 11th National Games for Persons with Disabilities     2     (hold)in Xi'an, Shaanxi Province.

Qian, from Luliang, Yunnan Province, lost both legs.     3     caused that was a traffic accident when she was 4 years old. Since then, she has become well-known tor moving around while balanced on an orange ball,     4     (earn) herself a nickname, basketball girl.

Qian's enthusiasm for swimming     5    (date)back to 2007. At 11 years old, she     6    (invite)by the coach Zhang Honghu to join the swimming club tor people with disabilities. However, without legs, Qian found it difficult to keep balance in water."Swimming without legs is like handling a boat     7     a rudder(舵). I tended to sway(摇摆)due to a poor sense of direction," she said.

To help her overcome the difficulty, her coach made a tailor-made training plan for her. Every day, she practiced swimming for at least four     8    (hour). She made intense efforts to strengthen her arm and balance,     9     helped her successfully get used to the water.

"I like swimming. It changed my life and helped me see     10     (extreme) wonderful things," she said in an interview.

Everyone has their dreams. Some people want to be rich, dreaming of becoming millionaires overnight. Others want to be famous, dreaming of suddenly jumping to great fame. I have a dream, too. When I was     1     young girl, I dreamed of becoming a scientist like Hua Luogeng,     2     was a great Chinese mathematician.

However, I knew that I could not     3    (success) without great efforts. So I studied hard in middle school and college in order to realize my dream.

After graduating from college, I    4    (find) a job as a teacher. Although I was very busy     5     (teach), I never gave up my goal. I read a lot of books     6    (get) more knowledge. I made   many     7    (experiment) to practise and apply what I had learned from books. Sometimes, I was so     8     (deep) indulged (沉迷) in my research that I forgot my meals and time.

Now I have made great progress. Several of my research papers have been published. The methods mentioned in my papers have been proven to be valuable for the     9    (solve) to some problems. I am very happy. The ladder of becoming a scientist is still far ahead,     10    I have climbed the first step anyway.

In 2021,the Mid-Autumn Festival will fall on September 21^st,Tuesday.The Mid-Autumn Festival    1    (celebrate)in many East Asian communities. In China, it’s a reunion time for families, while in Vietnam, it’s different    2    China’s. It’s more like a children’s day.

The Mid-Autumn Festival is also called the Moon Festival or Mooncake Festival. It traditionally falls on    3    15th day of the eighth month in the Chinese lunar calendar,    4    is in September or early October in the Gregorian calendar.

The Mid-Autumn Festival is the second most important festival in China after Chinese New Year. Chinese people usually celebrate it by    5    (gather)for diners and lighting paper lanterns. After dinner, people will enjoy the    6    (new)harvested melons, pears and peaches, as well as the round moon cakes. It is really a good day with     7    (beauty)scenery and enjoyable events.

In many East Asian communities, many celebrations take place for the Mid-autumn Festival. Many interesting    8     (activity) with unique local features are held. In Singapore, Malaysia, and the Philippines, in which many ethnic Chinese citizens mainly live, the celebrations are more Chinese, such as lighting lanterns and dragon dances.

In other countries, such as Japan, the ROK, and Vietnam,     9     (influence) deeply by Chinese culture, new celebrations have been used     10    (show)their unique cultures