⒈用do\does\did + V可表强调
Some people do believe that nuclear power poses a threat to the world peace.
⒉adv或adj可表强调：Never \ only\ Very
This is the very question that deserves careful analysis.
Taking part-time jobs is never without drawbacks.
What really matters is cooperation.
Littlie do people take into account the seriousness of this problem.
Nothing is more imperative than to learn from the past.
It is \was +被强调部份+ that \ who +原句剩余部份
It is stability that destroys people’s ambition and barricades people’s steps.
It is through competition that children can learn the meaning of courage.