必威体育精装版8A牛津版Unit 2Numbers课文及重点.docVIP

Unit 2 Numbers The king and the rice A long time ago, there was a king in India. The king’s favourite game was chess. One day, an old wise man came to the palace and the king challenged him to a game. The king promised the old man, “ You can have any prize, if you win the game.” The old man said “ If I win the game, I’d like one grain of rice for the first square of the chessboard, two for the second, four for the third and then double the amount for each of the rest of the squares. “Is that all?” asked the king. “ Wouldn’t you like gold or silver instead?” “ No, just rice,” replied the old man. The king and the old man played the game for a long time. Finally, the old man won. So the king ordered his men to collect a bag of rice. He put one grain on the first square, two on the second , and so on. The king quickly realized the problem-------even with all the rice in the country, he would still not have enough rice to put on all the squares! check in 登记 check up 检验 check out 办清手续后离开 基数词+单位名称（metre, feet, kilometer等）+adj（long, wide, high等） play chess 下象棋 play with 玩耍 favourite adj. 最喜欢的，（无比较级和最高级） one day (过去，将来）的某一天 some day (将来）的某一天 the rest of 剩余的…… have a rest 休息下 promise sb sth 答应给某人某物 promise sb to do sth 答应某人做某事 make a promise 许诺 would like sth 想要某物 would like to do sth 想要做某事 would like sb to do sth 想要某人做某事 instead （句首，句末）代替，而不是 instead of 代替，而不是 特殊疑问词 +to do realize sth 意思到 …… realize that 意思到…… enough +n. 或n.+ enough足够多的…… Adj+enough 足够…… talk to sb 和某人谈话（暗含上级对下级的意思） talk with sb 和某人谈话 talk about sth 谈论某事 advice n.（不可数） some advice 一些建议 a piece of advice 一条建议 give sb advice 给某人建议 follow/take one’s advice 听从某人的建议 a bag of ...一包…… and so on 等等 Counting before numbers Before the invention of written numbers, people used many different ways to count things. At first, people use their fingers, and even their toes. However, they could only count small numbers in this way. After that,