It is
important(necessary,difficult,convenient,possible)for sb.to do sth.
除此之外，我们还可以换个思路，把重要性用“必要”来表示：
We think it necessary to do sth.
另一个很常用的地道表达是：
It plays an important role in our life.
例： Computers are now being used everywhere,whether in the government,in
schools or in business.Soon,computers will be found in every home,too.We have
good reason to say that computers are playing an increasingly important role in
our life and we have stepped into the Computer Age.
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GRE写作中表达某事某物很重要，最简单的当然是直接用形容词表达：
It is important(necessary,difficult,convenient,possible)for sb.to do sth.
除此之外，我们还可以换个思路，把重要性用“必要”来表示：
We think it necessary to do sth.
另一个很常用的地道表达是：
It plays an important role in our life.
例： Computers are now being used everywhere,whether in the government,in schools or in business.Soon,computers will be found in every home,too.We have good reason to say that computers are playing an increasingly important role in our life and we have stepped into the Computer Age.