China is the land of silk. Silk is a special fiber that can be made into clothing, bedsheets, and other products. It’s produced by silkworms. Farmers feed silkworms with mulberry leaves to create silk. How is silk produced? Let’s look at the silkworm’s life. A female silkworm moth...
V.阅读理解(每小题2分) A Silk is a thin and pretty strong fiber(纤维制 品). Thousands of years ago, in ancient China, people began making silk fiber into a soft fabric (织物). It was very beautiful. However, silk could only be used in the palace (宫殿) because of its high pric...
The silk fabric made of silk is soft and plump and has many grains on the surface. It is a kind of material with the style of < a target= "_blank" href= "//www.sjfzxm.com/" > strong > dress < /strong > /a > material. Silkworm cocoons, which are used as raw materials for ...
Silk is a filament fiber formed from proteins secreted byBombyx mori, or silkworms. Silkworms are not actually worms, but caterpillars, despite their common name. Humans have practiced silk production, which originated in China, for thousands of years. Highly prized for its softness, insulating ...
The director of charge for the crowd raising said: "silk is sold at a price of 1980 yuan and sold for forty percent off times. After sale, it can enjoy the ultimate preferential price of 690 yuan. Now sales have more than 10000 beds, this time the crowd raising effect is very good....
C Silk is a thin, yet pretty strong fiber(纤维制品). Thousands of years ago, in ancient China, people began making silk fiber into a soft, smooth fabric(织物). Because it's very beautiful but expensive, silk could only be used in the palace at first, which showed the high position(位...
Silk is a(1)___ (nature) protein fiber and some forms of silk together with other fabrics can be weaved into textiles(纺织物). China is said to be the first country in the world(2)___ (master) the sericulture technology(养蚕技术) to produce raw material of silk cloth.According to...
Silk is a filament fiber formed from proteins secreted byBombyx mori, or silkworms. Silkworms are not actually worms, but caterpillars, despite their common name. Humans have practiced silk production, which originated in China, for thousands of years. Highly prized for its softness, insulating ...
Comprised of a natural protein fiber, silk mainly consists of fibroin, which is a protein that certain types of insect larvae secrete to make cocoons. While other insects also produce silk-like substances, most of the world’s silk is derived fromBombyx morilarvae, which are worms that only ...
A silk-filled duvet is a hypo-allergenic comforter that's filled with silk fibers. The main benefits of using a silk-filled duvet...