1. Who first developed plastic on a large scale?
A.A Frenchman. | B.An Englishman. | C.An American |
A.They didn't wear out easily. |
B.They were easy to wash. |
C.They were comfortable. |
A.They were colorful. | B.They were cheap. | C.They were light in weight. |
A.The popularity of plastic. |
B.Different ways of using plastic. |
C.The harmful side of plastic. |
2 . History’s first empire rose out of a hot, dry landscape, without rainfall for crops, without trees or stones for building. In spite of all this, its people built the world’s first cities, with monumental architecture and large populations — and they built them
Sumer
But Sumerians were the first to take the
The Sumerians created the first
But by the third millennium (千年) BCE, Sumer was no longer the
Afterward, Sumer disappeared back into the desert dirt, not to be
A.permanently | B.quickly | C.patiently | D.entirely |
A.occupied | B.destroyed | C.lost | D.attacked |
A.separate | B.interrupt | C.redirect | D.freeze |
A.dry | B.royal | C.awesome | D.rich |
A.wearing down | B.springing up | C.rising up | D.breaking down |
A.next | B.last | C.slow | D.same |
A.equipment | B.basins | C.walls | D.bricks |
A.emperors | B.universities | C.cities | D.palaces |
A.law | B.school | C.construction | D.labour |
A.society | B.childhood | C.community | D.parenthood |
A.invented | B.dismissed | C.learned | D.preserved |
A.only | B.safe | C.weak | D.reliable |
A.region | B.center | C.river | D.farm |
A.strengthened | B.saved | C.surrounded | D.overturned |
A.rebuilt | B.relocated | C.rediscovered | D.reunited |
The problem with
So we set out to find out
The Norman knights were also expanding into Sicily and mainland Italy, while the migration of Seljuk Turks from Central Asia was about to threaten the Byzantine Empire,
But my
Frances Wood, a former head of the Chinese section at the British Library
Chang Yu Wine Company, the largest and oldest wine producer in China,
Bishi initially imported 2000 vines (葡萄藤) from America, which were
In 1905, Changyu completed
Devoted to continuous trial and
Later, using Cabernet Gernischt as the main material, Changyu produced a red wine with a totally different flavor.
Today ChangYu Wine Company, with its wine well received both at home and abroad, is moving ahead for a better future.
5 . Born in Wales in 1950, Martin Lockley was a pioneer in the study of the dinosaur tracks and footprints preserved in rocks around the world. His work helped his fellow paleontologists (古生物学家) understand what the footprints can tell us about dinosaurs and the world that they lived in.
The footprints and tracks left behind by dinosaurs and other prehistoric animals are called trace fossils (痕迹化石). They can offer clues to how quickly an animal walked or ran and even what their skin may have looked like. Compared with the body fossils of bones and teeth, trace fossils contain evidence of the interactions that the animals had with their environment and can describe what the physical environment may have looked like. They offer a more reliable way to imagine the speed of a dinosaur than analyzing the bones.
Lockley’s mother and father were nature lovers. Lockley loved to observe nature. His father inspired him to “just go out and observe and trust your observations”, which proved important in Lockley’s launching his future career in dinosaur research. He took that advice with him to Gunnison, southwest of Denver, the United States. While North America is home to some of the largest number of fossil footprints in the world, Lockley’s work with prints and his father’s words took him far and wide. He explored fossil and track sites in China, South Korea, Spain and the United Kingdom.
In addition to finding the tracks, Lockley devoted time and energy to preserving these important parts of the fossil record. This includes guiding the politics needed to create UNESCO world heritage sites so that future generations wouldn’t lose out on these precious relics of the past.
1. What can we know about trace fossils?A.They can reflect the then environment. |
B.They are mainly left by some larger animals. |
C.They can be easier to preserve than teeth fossils. |
D.They are as accurate as bone fossils in analyzing animals’ speed. |
A.His family’s tradition. |
B.His father’s encouragement. |
C.His love for dinosaurs and their footprints. |
D.His desire to find the largest dinosaur track site. |
A.He explored places of interest around the world. |
B.He guided fellow paleontologists in their work. |
C.He conserved and promoted dinosaur track sites. |
D.He educated the next generation of track hunters. |
A.Dangerous. | B.Time-consuming. | C.Far-reaching. | D.Demanding. |
In the beginning, western people use letters of the alphabet (字母表)
By 1400 BC, the Chinese writing system had become more complex.
People
Porcelain, a fine and delicate ceramic, has long been prized for its beauty and elegance. Each piece, whether ancient or modern,
Porcelain found
Throughout history, China, along with other Asian countries, maintained a busy and vast trade in porcelain
Porcelain played
In conclusion, porcelain remains an eternal material,
According to a report from a leading Chinese e-commerce platform, sales of traditional Hanfu clothing
Piyingxi, or Chinese shadow puppetry is a traditional opera art among Chinese people. According to historical records, shadow puppetry originated
Shadow puppetry is an art with a perfect
The performers hold joysticks in their hands that they grab, grind, roll, and press
The coloring is also an
The harmonious co-existence of sounds, colors, light and shadow
The Great Wall of China with a total length of over 5,000 kilometers is one of the greatest
The Great Wall is not only a brick wall, but also one of the world’s greatest historical architectural works. It played a significant role