On the     1     (one) day of my senior high school life in the USA,I showed a great interest in one of the     2     (lecture),marketing lecture. My teacher, Mrs. Tolman,     3     (recommend) that I should register a     4     (nation) marketing club called DECA which attracts many students with interest in business. So I did,

The first challenge was     5     (collect) money for the marketing competition later in the year by selling candles. Mrs. Tolman said the competition was due (到期的) in a week and that 40 percent of the income (收入) would go into my personal ac-count,     6     made me     7     (addict) to the selling.

At     8     beginning, I tried to sell some candles to my host mom. She said that if I could show the candles     9     (confident) and do a wonderful sales presentation, she would certainly buy some. I started my topic with a firm handshake. Then I focused     10     all the different kinds of candles and the special sales I could offer and convinced(说服) her that our candles were the best choices for gifts and home decorations. Finally she bought three candles.

Good morning, everyone. Today I’d like to give a lecture about cycling. For anyone     1    ( who/whose)is considering going on a tour, the first thing to consider is     2    (safe/safety). First, wear something that can be     3    (easy/easily) seen, red jackets, for example. Second,don’t try to ride too far, too quickly. Take     4    (you/your) time, and if you feel     5    (tiring/tired), stop and rest. Third, if you are planning your journey in the summer, take plenty     6     (of/off) water. You are advised     7    (to drink/drinking) at least one litre(升) of water every hour. If the weather is not very warm, make sure that you take some warm     8    (cloth/clothes). And put them on when you stop     9    (ride/riding). Even in cold weather you can become very warm when you are riding and then it is very easy to catch     10    (a/an) cold when you stop.

Every Saturday, 73-year-old Zhao Guihua takes a special course. In a classroom located in a residential community in the city of Hefei, Anhui, Zhao and her classmates, all seniors, most     1    (wear) reading glasses, learn how to shop on their smartphones.

“We offer a course     2     teaches seniors how to use their smartphones to scan(扫描)health-tracking QR codes(二维码), buy things online, register for hospital visits, and shoot short films,” said Liu Li, who is the     3    (found) of the e-course.

Liu has been providing services for the elderly for 10     4     (year). After learning that many old people don't know about the use of digital devices(设备) in their daily lives, she     5     (start) the smartphone course in August last year to help them cross the digital divide.

Official data show that by the end of 2019, some 150 million seniors at or above the age of 60 in China hadn't had the opportunity     6    (use) the Internet.

“During COVID-19, scanning a health-tracking QR code     7     (need) when we go to a supermarket or take a bus,” said 63-vear-old learner Liu Shaomin.

Instructor Huang Zhen said the course started with the basics of smartphones and that the learners were all crazy about it. Over several months. The number of learners grew rapidly, with ages ranging     8     60 to 90.

“Now I can read news, buy train tickets and book tickets for tourist attractions on my smartphone,” Zhao said     9     (proud). “Scanning health tracking QR codes is now     10     piece of cake for me.”

David Ho is one of the most famous     1     (scientist) in the world because of his research on AIDS. He was born in 1952 and he     2     (give) the name Da-i,     3     means “Great one” in Chinese.

David was interested in life sciences so he went to Harvard Medical School.     4     was there that he first saw people who had AIDS. In     5     early 1980s, AIDS was almost unknown and David decided     6     (study) this mysterious killer disease. He discovered that the HIV virus could live in a healthy person's body for years and realized that the     7     (early) a person with HIV is treated, the longer they will live.

Because of his     8     (contribute), the lives of thousands of people have been saved. Today, his research is focused on     9     (make) a vaccine (疫苗) against AIDS. If David     10     (find) a vaccine for AIDS, he will become an international hero.

The Lantern Festival, a     1     (tradition) Chinese festival, is celebrated on the 15th day of the first lunar month. It is a continuation of     2     (celebrate) the Spring Festival.The day leads to the first full moon night of the year, and is also the night when the earth returns to spring. During the Han Dynasty (206 BC—AD 24), more than 2,000 years ago, Emperor Wen ordered that the 15th day of the first lunar month to be dedicated to the Lantern Festival. It was also a romantic festival in ancient China, providing     3     opportunity for unmarried men and women to meet.

In ancient times, young women,     4     (especial) daughters of eminent families, hardly     5     (step) out their houses. But during the Later Festival, it was a tradition that all people, including those young women, come out for lantern shows. Watching lanterns at night was just an opportunity for young women to find a man     6     appearance appealed to them. Another activity, guessing the answers     7     lantern riddles, gives young people a chance to interact with each other and know more about each other. Riddles     8     (write) on the lanterns can inspire wisdom and cater to the festival atmosphere, so many people like it very much. Eating yuanxiao on Lantern Festival is another tradition. Yuanxiao     9     (make) of glutinous rice, either solid or stuffed. It can be boiled, fried or steamed     10     (eat).

Nowdays many youngsters prefer to go online in their spare time. Generally,its advantages can be seen as     1    (follow). First, through the internet, they can gain new knowledge       2     the latest news at home and abroad. Besides, the network offers them a convenient way     3     (communicate) with each other. The internet makes     4    (they) life outside class colorful. But every coin has two sides. The negative       5    (aspect) are also apparent. One of the important disadvantages is       6     some students prefer to play computer games instead of       7    (study) their lessons. To make matters       8    (bad), there are some students who are often absent       9     school for days. Through the above     10    (analyze), I believe that the positive aspects overweight the negative ones. Therefore, I would like to go online in my spare time.

Sometimes it     1     (take) specially designed methods and approaches to let kids learn things which might not naturally come to them. Likewise, the first step in teaching     2    child to play football is letting her become familiar     3     the ball. Trainers at child football classes question them     4     (repeat) "what do we use in football"   and kids answer "feet".

Next, they should     5     (allow) to become confident with the ball. For this, you ask her to keep the ball under one foot and then do it with the other one. Subsequently, you gently roll it forwards and backwards by supporting the kid's foot on it. It lets her know that she can control the ball and that too without hands.

Progressing gently, you can start showing the     6     (difference) paths the foot can follow to stop and control the ball. You roll the ball towards her and let her control the ball. Followed by this comes the fun part,     7     you teach your kid to kick the ball properly. Teach her to kick with the top of the foot with the laces part and not let her get stuck at     8     (kick) by the toe-end.

After having her equipped with these basics, you can continue gradually teaching     9    (they) dribbling (带球)，some trickery and advanced football skills. It takes a lot of     10    (patient) and time, but eventually, the joy the kid will find in the sport is worth all of it.

In April, Zhejiang’s elementary schools made the set of Traditional Chinese Medicine (TCM) textbooks available to the public, which were     1     first of their kind in China, making the province a pioneer in teaching the subject to     2     (pupil) in the country. With 36 lessons for fifth-grade students so far, the textbooks include fundamental knowledge of TCM.

TCM, which has made great contributions to the prosperity of China,     3     (be) an integral part of Chinese culture. TCM, with its unique diagnostic methods, long history and remarkable effects, has been used     4     (treat) cancer and other serious diseases. It is widely used in China and is becoming     5     (increasing) popular and recognized worldwide. Today     6     of TCM and western medicine are being used in providing medical and health services in China.

TCM has achieved a new level in the prevention and treatment of common diseases. Since the COVID-19 pandemic, TCM     7     (play) a vital role. Zhong Nanshan,     8     has been devoting his life to medicine, said that TCM     9     (combine) with western medicine made great contributions to the cure for COVID-19. According to the statistics, the rate of recovery was up to 90%.     10    , it’s thought that the spring of TCM is not far away.