最新8A牛津版Unit 2 Numbers课文及重点教学文案

最新8A牛津版U n i t 2N u m b e r s课文及
重点
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!
1.check in 登记
check up 检验
check out 办清手续后离开
2.基数词+单位名称（metre, feet, kilometer等）+adj（long, wide, high等）
3.play chess 下象棋
play with 玩耍
4.favourite adj. 最喜欢的，（无比较级和最高级）
5.one day (过去，将来）的某一天
some day (将来）的某一天
6.the rest of 剩余的……
have a rest 休息下
7.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
8.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
9.instead （句首，句末）代替，而不是
instead of 代替，而不是
10.特殊疑问词 +to do
11.realize sth 意思到……
realize that 意思到……
12.enough +n. 或n.+ enough足够多的……
Adj+enough 足够……
13.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
14.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
15. follow/take one’s advice 听从某人的建议
16.a bag of ...一包……
17.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, they began to make small marks on sticks and bones. This helped them count bigger numbers. They used them to count the days of the month, the amount of food and the number of animals they have.
Then people began to use tokens made from clay or small stones. This helped them count even bigger numbers. They often put the tokens on pieces of string so that they could carry them around easily. This developed into tools like the abacus.
Finally, people began to develop systems of written marks to show different numbers, and this led to the Hindu---Arabic system(0-9). We are still using this system today.
1.at first 起初，开始
2. a piece of string 一根绳子
3.develop into 发展成……
4.lead sb to ...带某人去……
lead sb to do sth 带领某人做某事
5.agree with sb 同意某人
agree to do sth 同意做某事
6.not ...any more =no more = not....any longer= no longer不再
7.take place 发生 happen 发生
8.at once 立刻
9.as usual 和往常一样
10.keep your dream 坚持你的梦想
11.not.....at all 一点也不
12.besides 除了……还有
except for 除了……（不同类）
except 除了……（同类）
but 除了
13.be late for 迟到
14.all year round 全年，整年
15.order sb to do sth 命令某人做某事。