People usually start a new year resolved to achieve more than the previous year.

(题目中给出了提示， 使用固定用法resolve to do sth.表示“决心做某事”。 “取得成就”可以用动词achieve。 )

In reality, either of the two extremes could lead to bad outcomes.

(①“实际上”可以使用词组in reality， 放在开头大写。 ②提示给出lead to即表示“导致”。 ③可以用either of+ n.表示“两者中的任何一种”。 )

If you try to do more than one thing, you will not be as efficient as when you concentrate on a single task.

(①此处用if引导条件状语从句， 表示“如果”。 ②题目中给出的提示， as…as…即“和……一样”。 ③表示“专注于”可以用固定词组concentrate on。 )

Judges who tried to handle several cases simultaneously took longer to complete them.

(①此处可以使用关系代词who引导定语从句， 指代主语法官。 ②副词simultaneously修饰动词handle， 意为“同时”。 )

 “Yes — but if less is more, how much will this „more‟ be!”

(本题使用how much引导感叹句， 谓语动词放在末尾。 )