Yuan Longping was born    1    1930. He graduated from college in 1953. Then he worked as a    2    (teach) at an agricultural school. From then on, he tried his best to find ways to grow more rice. After years of research, he    3    (final) made it. In 1973, he became the first person in the world to grow rice with a high output (产量). Thanks to his research, farmers are producing harvests twice    4    (large) than before. Although he is one of China's most famous scientists, Yuan Longping considers himself as    5    farmer, for he works the land to do his research.

Yuan Longping feels that being famous gives him less freedom to do    6    (he)research. So he doesn't care about it. He prefers keeping time for his hobbies. He enjoys    7    (listen) to music, swimming and reading in his spare time. Now he is more than eighty    8    (year) old and he    9    (be) satisfied with his life.

Such is Yuan Longping, a simple man    10    has great achievements.

China has once again showed its ability to change the world with its “four great new     1    (invent)” —high-speed rail, electronic payment, shared bicycles, and online shopping.

China’s new-generation high-speed train, the Fuxing Hao,     2     can travel at a speed of 350 km/h, is now one of the     3    (fast) trains in the world. Besides high-speed rail, China     4    (improve) people’s lives in many other innovative(创新的) ways over the last ten years.

Bike sharing, for example, is not new itself. But China has made     5     much more convenient and popular both in China and overseas. The leading Chinese bike-sharing companies Mobike and Ofo are now operating in foreign countries such as Singapore and Britain.

And back in China, when riding a shared bike, you can stop     6    (buy) and eat whatever you want     7    (simple) with a tap on your phone. You could easily pay with your smartphone by     8    (scan) the seller’s QR code. Cashless payment has grown into     9     choice for Chinese people—even a pancake seller is using Alipay.

Besides, the four innovative ways of life are most appealing to youths from 20 countries taking part     10     the Belt and Road Initiative, and they wish their countries would emulate(效仿) China in terms of technological achievements.

Cao Yuan, a 22-year-old Chinese doctoral student in physics, was on top of     1     most important scientists named by the journal Nature in 2018 for     2     (discover) a “magic angle” in graphene (石墨烯).

Cao’s discovery takes a huge step in the decades-long search for superconductors (超导体) in the world. Why was Cao able to make the discovery? His teachers think it is Cao’s independent learning ability and interest in doing experiments     3     matter. His high school physics teacher said Cao had a strong ability to study on     4     (he) own and was brave to challenge teachers and ask difficult questions. “Cao is     5     (deep) curious about laboratory equipment,” his college teacher told Nature. “Every time I go into Cao’s office, it’s     6     a huge mess, with computers     7     (pull) apart and pieces of telescope all over his desk. ”

At 14 he     8     (admit) into the University of Science and Technology of China’s School of the Gifted Young, a special school to cultivate     9     (teenager) into world-class talents. But Cao doesn’t think himself special and often stresses that he is just an ordinary kid who     10     (love) reading about science and doing experiments. “After all, we are all humans, with shortcomings and emotions,” he once said.

The Hong Kong-Zhuhai-Macao Bridge, the world's     1    (long) cross-sea bridge, enters the history of human engineering and connection as a point of pride upon     2    （it) opening to traffic at 9 am on Oct.24, 2018.

One day after the opening was announced at a ceremony     3    (hold) in Zhuhai , the bridge's ports in three different administrative regions started serving travelers around-the-clock , opening 24 hours a day, seven days a week.    4    (ensure) faster boundary crossings for passengers, the Macao and Zhuhai ports jointly use a one-off immigration clearance model,    5    allows travelers to queue up only once to finish both exit and entry procedures of the two cities in about 30    6    (second).

Apart    7       private cars, taxis and goods vehicles, two types of public transportation -shuttle bus（班车）and cross-boundary coach --can also run on the HZMB.     8    frequency of shuttle buses is about 5-10minutes during peak hours. Booking tickets for the shuttle bus online in advance     9    （be）available since 9 am on Tuesday. With the bridge now in service, the traveling time between Zhuhai and Hong Kong International Airport will    10    ( shorten) from four hours to 45 minutes, and the time between Zhuhai and Hong Kong’s Container Terminals will be cut from 3. 5 hours to 75 minutes.

Yesterday I went shopping in the town. I was using my crutches(拐杖)on     1     were two bags. I really struggled through the shopping mall. I was     2    (tire)! After a while, I found a space and had     3     rest there.

Then I noticed Michael. He was my former student and he was a man     4     his 40s. It's been years since I     5    (teach) Michael, but he stopped to chat with me. When he noticed my crutches, he said, "Let me carry the bags for you." I thanked him but     6    (polite) declined his offer. Then Michael pointed to a coffee shop nearby, "I will be here Rose Marie, if you change your mind." It was lovely and kind of     7    (he) to give me an opportunity to change my mind.

In fact, Michael is tattooed(纹身) on his arms. People think that guys like this are frightening, but there     8    (be) nothing threatening about Michael. Michael's     9    (appear) with tattoos is just his idea of sell-expression.

    10    (chat) with him helps me recognize the tenderness in the youth regardless of how they look.

As we do in the west, the Chinese also have an annual day devoted to love. Qi Qiao Jie     1    (think) as Chinese Valentine's Day. According to a legend, the seventh daughter of the Goddess of Heaven     2    (catch) sight of a cowboy during one of her     3    (visit) to earth. The daughter, Zhi Nu, and the cowboy, Niu Lang, got     4    (marry) and the couple lived happily for several years.     5    (eventual), the Goddess of Heaven became fed up with her daughter's     6    (absent), and ordered her to return to heaven. However, the mother took pity on the couple     7     allowed them to be reunited once a year. Legend has it that on the seventh night of the seventh month on the lunar calendar, magpies(喜鹊) form a bridge with their wings for Zhi Nu to cross     8    (meet) her husband. Today, star observers celebrate Qi Qiao Jie by looking up at the star Vega,     9     represents Zhi Nu, and at the star Altair, on the other side of the Milky Way, where NiuLang waits     10     his lover to join him.

Savanna, 11, is possibly one of our next great experts of the heart disease. After visiting her Sunday school teacher, who was about to perform a heart     1    (operate) at the hospital, Savanna’s curiosity led towards a deep appreciation of the heart and its importance to the human body.

Encouraged by her parents to research further matters of the heart, Savanna learned that one in three of her peers (同龄人)     2    (be) suffering from childhood fatness,     3     can lead to heart diseases. She began making YouTube videos sharing with the world ways to have a better health and create a happy, healthy heart.

In 2016, Happy Heart Advice launched its Happy Heart Challenges,     4    (provide) over 300 hundred children and families     5     education and free resources for healthy living. In June, she     6    (invite) as an important speaker at the 9th Biennial Obesity Conference where she shared valuable information on how to form healthy eating     7    (habit) and everyday lifestyles, and was honored by the American Heart Association for her work and effects in the health community at such     8     early age.

She’s currently working on an app that will make it     9    (easy) for moms and families to shop for “Happy Heart-approved Food”. She makes it her life’s goal     10     (make) sure kids have healthy hearts.

The Dragon Boat Festival has been marked by     1     (eat) zongzi and racing dragon boats for thousands of years. It falls on     2     fifth day of the fifth month according to the Chinese lunar calendar in honor of Qu yuan,     3     is said to have committed suicide by drowning himself.

Qu was minister of the state of Chu     4     (lie) in the present-day Hunan and Hebei provinces during the Warring States period. He was upright, loyal and     5     (high) respected. However, he was fired from office due to his suggestion to fight against Qin in cooperation with other states. During his stay in other states, he wrote a number of     6     (poem) to express his strong love for his country. When Chu     7     (defeat) by Qin, he realized what he could do about it was nothing. Qu jumped into Miluo River on the fifth day of the fifth month.

After the     8     (die) of Qu Yuan, people of Chu went to Miluo River to mourn over the great poet they loved so much. People threw eggs and rice wrapped in leaves     9     the river to feed the fish to keep them away from Qu Yuan. Now the Dragon Boat Festival has become     10     （tradition）festival for the Chinese people.

John Snow was a well-known physician in London in the 19th century.     1     famous was he that he even attended Queen Victoria to ease the birth of her babies. However, he decided to defeat cholera, a     2     (dead) disease at that time when he saw thousands of people     3       (expose) to it died every time there was an outbreak.

In 1854 when cholera broke out, he began to gather information and marked on a map     4     all the dead people     5    （live）. He found many people who had drunk     6     dirty water from the pump died. So he decided that the polluted water carried cholera. He found a woman and her daughter who had the water     7    （deliver） from the pump every day died of cholera after drinking the water.     8     this extra evidence John Snow announced that the polluted water was     9    （blame）. He suggested the source of all water supplies should be examined and new methods of     10    （deal）with water be found. Finally, “King Cholera” was defeated.

The teenagers want to look good. As    1    matter of fact, any type of regular physical activity can improve your fitness. The most important thing is     2    you keep moving!

A good mental attitude is of great importance. So first of all, keep positive and fun. You are more     3     (like) to keep with it if you choose something you like.

Small changes can add up to better fitness, so take one step at a time. For example, walk or ride your bike to school instead of getting a ride. Get on or     4     the bus several blocks away and walk the rest of the way.

    5     you choose, make sure it includes aerobic(有氧的) activity that makes you     6     (breath) harder and increases your heart rate. This is the     7     (good) type of exercise because it increases your fitness level and makes your heart and lungs work better. It also burns off your body fat. Examples of aerobic activities are basketball, running, or     8     (swim).

Last but not the least, don’t forget to warm up with some easy exercises before you do any physical activity, which may help protect against many     9     (injure).

Exercise should be a regular of your day. Keep moving and you     10     (stay) fit.