themostimportantthingwhenanemergencyistostaycalm为什么用tokeepinmind和dealingwith,前面是是表目的,可是不通啊,后面是状语,反正糊涂中,

Question

the most important thing___when____an emergency is to stay calm
为什么用 to keep in mind 和dealing with ,前面是是表目的,可是不通啊,后面是状语,反正糊涂中,

Answer 1

the most important thing ... is to stay calm
整句主词就是 the most important thing
to keep in mind 和 when dealing with an emergency 都是补充主词、修饰主词 用的,有没有添加不影响语法的正确,只不过更完整地、清楚地表达了意思.
看：the most important thing to keep in mind is to stay calm 也说得通
和：when dealing with an emergency the most important thing is to stay calm 也一样