【推荐2】Astronauts are people who go out into space. Being an astronaut is an exciting job. While in space, astronauts can look down and see     1    （cloud）, land, and water. They can even see the moon up close. Astronauts get the chance     2    (see) more stars than you or I have ever seen. Being an astronaut may be exciting,     3     it is not an easy job. A person who     4    (want) to be an astronaut has to study for years. There are many things an astronaut must learn to do before going into space.

Twelve laureates were awarded a Nobel Prize in 2020. Their achievements are     1     （benefit）to humankind.

Three scientists, Roger Penrose, Reinhard Genzel and Andrea Ghez,     2     helped uncover the details about black holes, shared this year's Nobel Prize in Physics.

Black holes are massive objects whose gravitational field is so strong     3     nothing can escape it, not even light. At their centers, the laws of physics stop making sense.

No question, these objects are mysterious. Fortunately, the full picture gets clearer than before with scientists     4    （ continuous） working on them. Penrose eventually performed mathematical     5    （ calculation） that showed black holes were not just mathematical ideas     6    （ suggest） by

Einstein^’s theory but that they could form in conditions which are likely to exist in the universe. Using the world’s largest telescopes, Genzel and Ghez each lead astronomers who , since the early 1990s,    7    （focus） on a region called Sagittarius A * （人马座 A 星）at the centre of our galaxy. They     8           （ develop） methods to see through the huge clouds of interstellar （星云）gas and dust     9     the centre of the Milky Way. They also improved new techniques,    10    （ devote） themselves to long-term research. Their pioneering work has given us the most convincing evidence of a supermassive black hole at the centre of the Milky Way.

One area in which AI (Artificial Intelligence) influences global health is in the field of epidemiology(流行病学). A start-up has     1    (success) combined public health data with AI    2    (create) a prediction engine capable of anticipating epidemics months in advance with great     3    (accurate). Another field where medical AI is making rapid advances     4    (be) in diagnostics. Doctors base a lot of decisions    5    information from X-ray, CT and MRI images. Speeding up diagnoses from patient    6    (scan) can rapidly improve patient care and outcomes. Governments in many countries face the prospect of ageing populations.So    7    we will probably see is the expansion of AI services, including robotic helpers. Robots     8    (design) specifically to interact with people could help solve the problems of isolation and loneliness that affect many older people. Pet androids like Aibo provide companionship and learn from    9    (they) interactions about each owner’s preferences. More humanoid robots are able to provide social interaction, be a personal assistant and look after     10    elderly, according to its makers.

The Chief Executive Officer of Beijing Aiqi Technology Yang Zhang has revived the Chinese cultural practice of using the mortise and tenon (榫卯) technique for construction which is on the edge of extinction.

He used the ancient mortise and tenon technique     1     (construct) the Turret of Palace Museum at a 1:81 mini-scale. The choice of “Turret of Palace Museum”     2     the theme for the mini building block project     3     (base) on several factors.

    4     (locate) in the Forbidden City of Beijing, this architectural treasure boasts the     5    (delicate) design and elegant shape among Chinese royal buildings. It was historically responsible for protecting the palace. The complex layout of the turret posed     6     unprecedented (史无前例的) technical challenge for Zhang and his team of designers and     7    (develop). Unlike conventional building block toys, Zhang aimed to create a model made     8     (complete) of authentic mortise and tenon components. The entire process of design took nearly five years, with hundreds of design iterations and continuous adjustments.

The mortise and tenon technique,     9     is the primary construction method used in ancient Chinese architecture and represents the core of traditional Chinese woodworking, is gaining     10    (increase) recognition among the public.