Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. 这个部分是做后置定语吧， known to geologists as hot spots那它是什么意思？如何理解？我这个地方没懂，导致整篇文章都理解有障碍
见过这样的句子：It
took us three hours to do the work.It
took them five months to win the war.其中的时间名词都是three hours, five months,
ten minutes, two weeks 等。但是，能不能用 all week, all month, all year, all morning, all afternoon 这样的词语呢？
...么意思？成为的意思吗？不要这个being可以吗？In addition to being the perfect gift for the
occasion, also remember that gifts are memorable. They may cost you little but
would be priceless to the receiver, who recognizes their value as a sign of
your affection, love, and thoughtfuln...
Technological change may well reinforce that shift:the skills that complement computers,from management knowhow to creativity,do not necessarily decline with age.这句话不是很能理解，尤其是红色部分，求大神理顺一下。