表达因果关系：
这一基本功能意念，是任何写作的最基本的任务之一。要掌握以下基本表达方式：
名词及词组：
cause for / reason for / factor for / explanation of / result of / consequence of / effect on / influence on
副词及词组：
so / thus / therefore / as a result / as a consequence / accordingly / consequently / because of / due to / owing to 连接词：
because / as / since / so that / so 动词及词组：
make sb do sth / make sth happen / result in / result from / lead to / cause sb to do /
cause sth to happen / affect / have an effect on / have an influence on / have an impact on /
I. 表达产生、引起、造成、使得：
例句：
1． 自然化学反应造成食物软化或变色。
Natural chemical reactions cause foods to
become soft or discolored.
Natural chemical reactions make foods (become) soft or discolored.
2． 这种化学物质引起的健康问题一般不严重。
The health problems caused by this chemical usually are not severe.
The health problems resulting from this chemical usually are not severe.
This chemical does not cause serious health
