A clay pig     1     (find) in Lianhe Ruins in Sichuan province in 2019. It is estimated to be about 3,000 years old.     2     makes this finding unusual is its adorable appearance. The clay pig looks exactly like the green pig from The Angry Birds movie.     3     (it) cute image has left the Chinese netizens surprised and delighted, with many people joking that The Angry Birds character has traveled back in time to prehistoric days. The topic     4     (attract) 400 million views and 290,000 discussions since the pig was discovered.

SPACE:THE FINAL FRONTIER

“Are we alone? What's out there? ”    1     (look) up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers. They make     2     (vehicle) to carry brave people into space to find out the secrets of the universe.

Before the mid-20th century, most people felt travelling into space was an     3     (possible) dream.     4    , some scientists were determined to help humans realize their dream to explore space.

On 4 October, 1957, the Sputnik 1 satellite     5     (launch) by the USSR and     6     (success) orbited around Earth. Afterwards, the USSR focused     7     sending people into space, and on 12 April, 1961, Yuri Gagarin became the first person in the world     8     (go) into space. Over eight years later on 20 July, 1969, American astronaut Neil Armstrong     9     (step) onto the moon, famously saying,“That’s one small step for (a) man, one giant leap for mankind.” Following this, many more goals were achieved. For example, America's NASA space agency launched Voyager 1 on 5 September 1977 to study deep space,     10     it still transmits data today.

The Man of Many Secrets—Harry Houdini—was one of the greatest American entertainers in the theater this century. He was a man famous for his escapes-from prison cells, from wooden boxes     1     (float) in rivers, from locked tanks full of water. He appeared in theaters all over Europe and America. Crowds came to see     2     great Houdini and his “magic” tricks.

Of course, his secret was not magic, or supernatural powers. It was simply     3     (strong). He had the ability to move his toes as well as he moved his fingers. He could move his body into almost any position he wanted.

Houdini started working in the entertainment world when he was 17, in 1891. He and his brother Theo performed card tricks in club in New York. They called     4     the Houdini Brothers. When Harry married in 1894, he and his wife Bess worked together     5     magician and assistant. Harry performed his first prison escape, in Chicago in 1898, and he invited the local newspapermen to watch.

It was the publicity that came from this     6     started Harry Houdini’s success. Harry had fingers trained to escape from handcuffs and toes trained to escape ankle chins. But his biggest secret was     7     he unlocked the prison doors. Every time he went into the prison cell, Bess gave him a kiss for good luck—and a small skeleton key,     8     is a key that fits many locks, pass quickly from her mouth to his.

Harry used these prison escapes to build his fame. He     9     (arrange) to escape from the local prison of every town he visited. What was the result? World-wild fame, and a name     10     (remember) today.

The origin (起源) of tea is lost among history and tales.     1     can be almost confirmed is that tea originated in the southwest of China. According to ancient stories, the first person    2    (discover) the effects of tea is said to be Shennong —     3    ancient figure devoted to agriculture and herbal medicine in China. Shennong once tried 74 different kinds of poisonous plants in a day and he     4    (lie) on the ground, just alive. At this moment, he noticed several rather fragrant (芳香的)     5    (leaf) dropping from the tree beside him. Out    6    curiosity and habit, Shennong put those fragrant ones into his mouth and chewed     7    (they) slowly. After a little while, he felt well and     8    (energy) again, so he picked more to eat and thus cleared poison off his body.

The ancient Chinese medical book     9     (call) Shennong Bencaojing states that “Tea tastes bitter. Drink it, and you will think quicker, move more swiftly and even see more clearly.” This is the     10    (early) book to record the medicinal effects of tea.