根据提示补全下列教材原句

　　1．An ageing society is one in which the population of people over the age of 60 is increasing.老龄化社会是指60岁以上的人口数量持续增长的社会。

　　2．There used_to_be factories which produced heavy smoke, gases and waste water.

　　这里过去有一些排出浓烟、气体和废水的工厂。

　　　阅读P44课文，判断正(T)误(F)

　　1．Socrates helped drive forward advancements in Western medicine.(F)

　　2．Artists in Italy in the 15th century tried to create ideal form of beauty based on imagination.(F)

　　3．In the 15th century, Florence is the richest city­state in Italy.(T)

　　4．Late 16th and early 17th century, some adventure novels were created in England.(F)

　　 contribute to是......的原因之一；为......做贡献；捐献；增加；促进；撰稿；讲话，发表意见

　　(教材P43)Measures to slow population growth like China's one­child policy，have also contributed to lowered birthrates.

　　延缓人口增长的政策，如中国的独生子女政策，对降低出生率也起了作用。

　　(1)contribute sth.to...　　　 向......捐献......

　　contribute to 有助于；导致；捐献；投稿

　　(2)contribution n. 贡献；捐献；文稿，稿件

　　make a contribution to... 为......做出贡献/捐款

(3)contributor n. 捐款人；投稿人；导致某事的人/事；起作用的人/因素