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Chopsticks originated from(起源于) China.Though simple and little, they are a great invention in the history of humans. There are many legends about Chopsticks, Da Yu and Chopsticks is one of them.
It is said that during Yao and Shun times, Shun ordered Yu to control the flood. One day, Yu took a boat to an island, he was so hungry that he used an earth pot to cook meat. After the meat was well-done in boiled water, he didn’t want to waste time to wait for it to cool, so he took two branches to pick up the meat from the soup. After, to save time, he always took small branches to take out food from the hot pot. For a long time, he was skilled at picking up food with small sticks. In this way, the first types of chopsticks were born.
The chopsticks are made of different kinds of materials including bamboo, wood, animal bone, beautiful stone, and some other materials. There are more than 200 types of chopsticks now, among them, the bamboo chopsticks are most widely used.
“A chopstick can be broken easily, ten pairs of chopsticks hold each other tightly(紧紧地)...”The song is popular with many people, and it always encourages people to work together.
1．What does the underlined word “them” in Paragraph 1 refer to?| A．Chopsticks. | B．Humans. | C．Legends. | D．Branches. |
| A．On foot. | B．By boat. | C．By bike. | D．By bus. |
| A．To save time. | B．To save food. |
| C．To save chopsticks. | D．to save money. |
| A．Chopsticks aren’t a great invention. |
| B．Yu ordered Shun to control the flood. |
| C．Ten pairs of chopsticks are easy to break. |
| D．The song encourages people to unite as one. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
