lose heart in doing something 中in可以省略吗？

Question

如题所述

Answer 1

不可以哦。
lose heart in doing something意思是：在做某事时失去信心，in引导的是一个时间定语，相当于In doing something ,（I）lose heart。
至于in在什么情况下可以省略什么情况下不能，详见下方：
(1) 在 in this way, in that way, in the same way, in another way 等表达中的介词in 通常可以省略：

Do it (in) this way. 这样做。

Let me put it (in) another way. 让我用另一种方式解释。

(2) 许多动名词前的介词in可以省略：

Be careful (in) crossing the street. 过街道要小心。

He lost no time (in) answering the question. 他马上就回答了那个问题。

但若介词 in 出现在句首，则通常不宜省略：

In crossing the street he was run over. 他在穿过马路时被汽车撞倒。

在这类用法中要注重一些常用句型：

be busy (in) doing sth 忙于做某事

be late (in) doing sth 做某事做晚了或做迟了

spend money [time] (in) doing sth 花钱(时间)做某事

waste money [time] (in) doing sth 浪费钱(时间)做某事

have luck (in) doing sth 做某事时有运气(走运)

have difficulty (in) doing sth 做某事有困难

have trouble (in) doing sth做某事有困难

have bother (in) doing sth 做某事费劲

have a problem (in) doing sth做某事有困难

have a good time (in) doing sth 做某事很开心

have a hard time (in) doing sth 做某事很辛劳

find difficulty (in) doing sth 做某事发现有困难

There is no difficulty (in) doing sth 做某事没有困难

There is no use (in) doing sth 做某事没有用

There is no point (in) doing sth 做某事没有意义
注：上述中（in）带括号意思是可以省略。

Answer 2

不可以省略