Question

请帮忙分析英文句子结构，谢谢。

People might not be able to stay alive: knowing neither joy nor pleasure, anxiety nor fear, they would be as likely to repeat acts that hurt them as acts that were beneficial. 人类很可能无法生存:既不懂得高兴和满足，也不了解忧虑和恐惧，他们可能反复地做伤害自己的事情就如同做有利于自己的事情一样。

Answer 1

这句话的主句是People
might
not
be
able
to
stay
alive;
后面的knowing
neither
joy
nor
pleasure,
anxiety
nor
fear,
they
would
be
as
likely
to
repeat
acts
that
hurt
them
as
acts
that
were
beneficial.是对主句进行说明，意思是在何种情况下【人类很可能无法生存】这一论点成立;
knowing
neither
joy
nor
pleasure,
anxiety
nor
fear,
they
would
be
as
likely
to
repeat
acts
that
hurt
them
as
acts
that
were
beneficial中:
knowing
neither
joy
nor
pleasure,
anxiety
nor
fear是现在分词短语作条件状语;
主语:they;
谓语是系动词would
be
;
表语:likely;
to
repeat
acts
that
hurt
them
as
acts
that
were
beneficial.是不定式作补语;其中acts是repeat的宾语，that
hurt
them
和
that
were
beneficial都是定语从句，分别修饰前后两个acts;
这里面用到了as
+
形容词
+
as
的句型，表示……和……一样，相当于将they
would
be
likely
to
repeat
acts
that
hurt
them.
和
they
would
be
likely
to
repeat
acts
that
were
beneficial.
两句并列起来。