Do well in和Be good at的区别

do
well
in
成绩好，…做得好
e.g：
She
is
a
very
clever
girl;
she
will
do
well
in
life.
她是个非常聪明的女孩，日后会成功的。
be
good
at
v.擅长;健;精通;熟谙
e.g：
You
have
to
be
good
at
spotting
trouble
on
the
way
and
heading
it
off.
你必须善于发现潜在的麻烦并加以化解。

be
good
at擅长，在介词
at后面接一个名词或动名词，表示“擅长什么事情”、“擅长做什么事情”。如：
I
am
good
at
English.
我擅长英语。
They
are
good
at
playing
football.
他们擅长踢足球。
与be
good
at同义的短语是do
well
in
。要注意这两个短语中at
和in是固定搭配。
He
is
good
at
Chinese.
/
He
does
well
in
Chinese.他语文学得好。