China’s first artificial intelligence (AI ) textbook for high school students    1    (bring) out last week, following a plan by central government    2    (include) AI courses in primary and secondary schools. The nine-chapter textbook,    3    (name) “Fundamentals of Artificial Intelligence”, was written by outstanding    4    (scholar) from well-known schools nationwide, under the joint efforts by the research center for MOOC at East China Normal University and AI startup SenseTime. It includes the history of AI and how the technology can be applied in areas such as facial recognition, auto driving and public security.

“The textbook focuses not only on basics of AI but on    5    (practice) use of AI in daily life”, said Chen Yukun, a professor at East China Normal University,    6    is also a contributor to the book.

Up till now, about 40 high schools across the country    7    (undertake) the task of being the first group of the AI high education pilot program    8    introducing the textbook in the curriculum. “The AI sector is facing a talent shortage    9    (global). The publication of the book is    10    breakthrough as it takes AI technology out of thevory towerand makes it part of high school learning”, said Lin Dahua,a profesor at the Chinese University of Hon Kong.

Many great people in the world devote themselves to     1     (improve) society in their own ways.For example，Jane Goodall, a woman from Britain, would rather spend time studying chimps in the wild in Africa than     2     (lead)a comfortable life. For four decades she     3     (be) outspoken about making the rest of the world understand and respect the life of chimps.Lin Qiaozhi, a specialist in women’s diseases, is another woman who has made great     4     (achieve). There was story after story of no matter     5    tired after a day’s work, she went to deliver a baby for a poor family at midnight.It was because of her hard work and great consideration to her patients that hundreds of babies     6     (deliver) safely by her.     7    third example is Yuan Longping, the first agricultural pioneer in the world     8     (grow) super hybrid rice.Using his hybrid rice, farmers can produce harvests twice as large as before and improve their income. Therefore, now the UN has more tools in the battle to rid the world     9    hunger. In short, they all show their virtue to us and they all deserve praising and learning     10    .

Maybe Letters from Father Christmas is the perfect book for those     1     regard Christmas as a special time of year. The author, J.R.R. Tolkien, is one of the most famous     2     (name) in English literature.

Every Christmas, an envelope with a North Pole stamp arrived. It     3     (address) to Tolkien’s children. Inside, they would find a handwritten letter from Father Christmas. The letters were also     4     (beautiful) illustrated---each must have taken its true author, Tolkien, a long time     5     (complete).

In one letter, Father Christmas complained     6     how he could not stop his helpers     7     (play) games with the toys instead of wrapping them up. Interestingly, the letters did not contain the usual     8     (warn) to children that they might not receive their presents if they were not good. The letters did, however, change as Tolkien’s children got       9     (old).

By expressing love for his children in such     10     special way, Tolkien may indeed have been the real Father Christmas.

Mid-Autumn Festival is a harvest festival     1     (celebrate) in most East Asian countries, such as China and Korea. The festival     2     (take) place on the 15th day of the 8th lunar month. In 2021 it’s on September 21th.

It is     3     second most important festival in China after Chinese New Year. To the Chinese, the festival means family reunion and peace. It is also called “the moon festival” as it is celebrated when the moon is believed to be the     4     (big) and fullest.

Chinese people celebrate the Mid-Autumn Festival     5     many traditional and meaningful activities, such as eating dinner with family, hanging lanterns, guessing lantern riddles, and worshipping the moon. Since 2008, the festival     6     (be) a 3-day public holiday in mainland China.

New celebrations have developed in recent years. The younger generations prefer     7     (travel), surfing the Internet, and using smart phone apps to celebrate with their families.

Mooncakes are the must-eat Mid-Autumn food in China. They are a kind of traditional Chinese pastry (糕点). Chinese people see in the roundness of mooncakes a symbol of reunion and     8     (happy). Other foods eaten during the festival are harvest foods, such as crabs, pumpkins and grapes. People enjoy them at their freshest and most nutritious.

Festival food traditions are also changing. The younger generations have     9     (they) own ideas about what should be eaten. Most of them don’t like mooncakes, and prefer to eat     10     they like.

China’s research icebreaker Xuelong,     1     126 crew members aboard on the 35th Antarctic research mission, on Thursday local time left the Zhongshan Station on     2     (it) way back to China.

Snow Eagle 601, China’s first fixed­wing aircraft for polar flight, on Thursday night also departed from the Antarctic after     3     (complete)all assignments.

Xuelong,     4     arrived near Zhongshan on Feb. 9, supplied the station with fuel oil, and then picked up summer expedition   team members   at   the   Kunlun, Taishan and Zhongshan stations, as well as     5    (member)of the fixed­wing aircraft project.

Sixteen members of the Kunlun team     6    (previous)completed all scientific expeditions at Dome Argus (Dome A), the South Pole’s highest icecap. They，together with 21 members of the Taishan team,     7    (return)to Zhongshan on Feb. 8.

The Zhongshan team completed tasks including installation of and tests for LiDAR, drilling of ice bedrock, atmospheric sounding     8    (observe)，surveys of birds and aerial exploration carried out by the fixed­wing aircraft.

As the summer expedition team at Zhongshan left, 19 members would stay for winter expeditions.

Also     9    (know) as the Snow Dragon, the icebreaker carrying a research   team   set   sail   from Shanghai on Nov. 2   last year, beginning     10     country’s 35th Antarctic expedition. It is expected to arrive in Shanghai in mid­March.

Anne lived in Amsterdam in the Netherlands during World War II . Her family was Jewish so they     1     (hide) away for over two years in order not to     2     (catch)   by the German Nazis. During that time Anne wasn't able to go outdoors for so long     3     she had grown crazy about everything to do     4     nature. One evening, she stayed     5     (wake) on purpose in order to have     6     good look at the moon by herself. But as the moon gave far too much light, she didn't dare open the window. Another time, she happened     7     (be) upstairs when the window was open. She didn’t go downstairs     8     the window had to be shut.     9     (sad),   for Anne it was no pleasure    10     (do) like that any longer because nature is one thing that really must be experienced.

At each stage of our life, we meet different kinds of people. Some are funny; some teach us lessons in life while others occupy a special space in our heart. The people     1     (call)“best friends” are just these special     2    (friend).

In our childhood, “best friends”might have meant the persons who are always by our side, whether it may be in the classroom or in the dining hall. However, as we are getting     3     (old) than before, our definition(定义)of “best friends” changes. In my opinion, best friends are those who love you     4     who you are and help you become who you should be. People in our life come and go, but some people stay. They are the people we should never lose.

True friends are those     5     will never leave you when you need them most. They are always there waiting for you and they love you when you forget to love     6     (you). The best feeling in the whole world is knowing that there is     7     person who always prays for us and always keeps us in his/her thought. Friendship may not     8     (necessary)be based on age, but it is based on     9     (understand). Even our parents also can be our best friends! So let us build our friendship and try our best     10     (see)the good side of everyone!

Lang Ping and Michael Jordan are athletes who are masters in their sport.

When the Chinese team was preparing for the 2015 World Cup, her determination     1     (test). The team that Lang Ping had built was falling     2    . Two players had to leave.     3     (lose) two important players was a big challenge, but Lang Ping did not lose heart. She knew that her young players could win     4    they worked together as a team. Two weeks later, they were world champions!

Michael Jordan who became     5     (know) as “Air Jordan” changed basketball with his graceful moves and jumps. His skills were impressive, but the mental     6     (strong) that he showed made him unique. Jordan says that the secret to his success is     7     (learn) from his failures. Losing games taught him     8     (practise) harder and never give up. In life, Jordan has learnt to share his success with others. The Boys and Girls Club which he started in Chicago     9     (help) young people since 1996.

They set     10    good example for us and we are proud of them.