01 It is vital/ essential/ crucial/ significant for someone to do... 对某人来说，做...是重要要的

　　例句：

　　It is vital for human beings to take immediate action to protect wild animals.

　　对人类来说，立刻采取措施保护野生动物至关重要。

　　02 There is little doubt that.. 毫无疑问

　　例句：

　　There is little doubt that more and more people are moving from rural areas to large cities.

　　毫无疑问，越来越多的人从农村地区迁移到城市。

　　03 be put under threat of 遭受某物的威胁

　　例句：

　　Citizens are put under threat of getting infected with the virus.

　　市民正在遭受感染病毒的威胁。

　　04 Those who... 那些...的人

　　例句：

　　Those who eat fast food very often tend to gain much more weight.

　　那些经常吃快餐的人往往体重会增加很多。

　　05 The reason why...is that... 原因是...

　　例句：

　　The reason why fast food dominates our dining table is that governments fail to protect a nation’s traditional food industry.

　　快餐如今支配着我们的餐桌的原因是政府没有保护好本国的传统食品行业。

　　06 We must keep in mind that... 我们须牢记

　　例句：

　　We must keep in mind that we are not children any more，and we should be independent.

　　我们应该牢记我们不是孩子，我们应该独立了。

　　07 enable someone to do... 使某人能够做某事

　　例句：

　　The new test should enable doctors to detect the disease early.

　　新实验应该能让医生们更早地发现疾病。

　　08 It is no exaggerations to say that 毫不夸张的说