《2025年基础知识同步训练10分钟八年级英语上册沪教版深圳专版》

五、语法填空(共 10 分)
The Chinese abacus is known as the suanpan. It is (1) an important part of traditional Chinese culture and sometimes it is known as China's (2) fifth great invention. People can use the abacus (3) to calculate at a faster speed, so it has been called “the (4) oldest (old) computer in the world”.
To use the abacus correctly, something (5) is necessary for you to know. It usually has more than seven rods(档). There are two beads(算珠) on each rod in the upper deck(层) and five beads each in the bottom. The beads are usually round and made (6) of wood. We count the beads by (7) moving them up or down towards the beam(横梁). If you move them towards the beam, you count their value. (8) However, if you move them away the beam, you can't count their value. The abacus can be reset(重置) to the starting position quickly, so you can start to count again (9) easily. Today, the use of abacus is still taught in some primary (10) schools as part of maths.

答案： an; fifth; to calculate; oldest; is; of; moving; However; easily; schools