1) on the earth. 在地球上。在earth, sun, moon等表达世界上独一无二的名词前, 要加________

2) come into being __________________

汉译英： 我们不知道这世界是什么时候存在的。______________________________________________________

3)There is a story about how the word "sandwich"___________

A. came into being B. was came into being

C. came to power D. was came to power

4)区别 come into being appear arise

1)I don't know what to do if a new

situation ________.

2)He didn't ________ until six o'clock

3)When did the world _______________?

5. come into operation _______________________

come into office _________________________

come into power ________________________-

come into use ________________________-

come into force _________________________

come into view/sight _________________________

6 long before 早在...之前很久

It will (not) be long before +从句 (不久后将会....)

before long: soon 不久以后