提示：come into being是不及物动词短语，无被动形式，无进行时。类似短语有：权
come into effect 生效 come into action 开始行动 come into office 就职 come into sight 看得见
26
come into power 当
come into use 开始使用
Ⅱ.重点句型详解
They lived on the earth tens of millions of years ago, long before humans came into being...
千百万年前它们(恐龙)就在地球上生活，比人类的出现要早得多……
long before 早在……之前很久
①Long before, there was a big museum here.
27
很久以前，这里有一座大博物馆。
②I had heard of him long before I came here. 早在我来这儿很久以前我就听说过他的情况。 ③Before long he went to Canada to go on with his further education.不久以后他就去加拿大继续深造了。
28
④It was not long before she came. 没多久她就来了。
⑤It will be long before we see each other again. 我们很久以后才会再见面。
易 错 点 拨 自我完善·误区备考 1. contain/include
(1)contain 意为“包含，含有，容纳，里面装有”，
29
指的是包含的全部内容或容量，也可指里面所含的成分。其宾语与主语常是同位关系，不用于进行时态。
(2)include 意为“包含；连……在内，计入，算入，包括”，只能用于表示所包含之物中的一部分，其后的宾语往往是主语的一部分。常用 “including＋被包括部分”或“被包括部分＋included”。如： Many people like tennis, including me/me included.
30