be good at和be bad at
2017-05-04 21:47阅读：
be good at和be bad at
（1）.be good
at意思比较简单，就是“善于，擅长，在......方面做得好”之意，at
在这里是一个介词，可以在其后跟名词，或在其后跟动词-ing
形式，表示做某事做得很好，很出色。它的同义短语是do well
in。一般可通用。例如：
1. I am
good at Chinese. 我擅长于语文。
上面这句还可以说：
I do well in Chinese.
我语文学得好。
2. Mr Black and his son are good at playing
football.
布莱克先生和他的儿子擅长踢足球。
这句改为否定句，是：
Mr Black and his
son aren’t good at playing
football.
这句改为一般疑问句，是：
Are Mr Black
and his son good at playing football?
回答是：Yes, they are. / No, they
aren't.
3. He does well in PE.
他体育学得好。
这句改为否定句，是：
He doesn’t do well in PE.
他体育学得不好。
这句改为一般疑问句，是：
Does he do
well in PE? 他体育学得好吗？
回答是：Yes,
he does. / No, he doesn’t.
注意：使用时要注意系动词be
和谓语动词 do 在主语人称和数不同时的相应变化。如：
我父亲擅长于画马。
My father is good at drawing
horses.
My father does well in drawing
horses.
This cat is good at catching rats.
这只猫很会捉老鼠。
The writer is not very good at
writing dialogues.
这个作家不太擅长写对白。
She is no less good at swimming than
Mary. 她和玛丽一样擅长游泳。
He is good at teaching his students
to reason. 他擅于教导学生如何推理。
Mike is good at swimming.
迈克擅长于游泳。
I am good at English.
我擅长英语。
（2）be good for
表示“能……有好处（益处）”，此短语的反义词是“
be bad for
（对……有害处）”。如：
Running is good for your
health. 跑步对你身体有好处。
Watching TV too much is bad for
your eyes. 电视看得太多对你的眼睛有害。
（3）. be good to
表示“对待……好”， to
后一般接表示人的代词或名词，其中 good 可用 friendly
代替。此短语的反义词是“ be bad to
（对待……不好）”。如：
Miss Li is very good / friendly to
us students. 李老师对我们学生非常好。
The son is not good / bad to his
old parents. 那个儿子对他年老的父母不好。
（4）. be good at 和be
good with，这两个词组意思接近，good
都有“好，擅长”之意。区别就在介词at和with上面。前者强调“在......方面擅长、善于”，其宾语往往指“技能、技巧、学科等”之类的词语；后者强调“擅长于和……友好相处、打交道”，其宾语一般是“人”，有时也可以跟“具体的事物”。例如：
Most of the students in this class
are good at mathematics.
这个班的学生多半数学很好。
I am not good at singing. I'm here
just to make up the number.
我不会唱歌，我在这儿只是滥竽充数。
Some people are good at communication
and should work hard towards their own advantage.
有些人善于沟通，应该努力发挥自己的优势。
She was always good with the
unfortunate. 她对不幸的人总是很友好.
Be good with your boss, and you will
get a rise. 和你的上司搞好关系，那么你将得到提升的。
（5）. be good at和be bad
at：
be good at =be
skilled in——擅长，精通……
be bad at=be
poor at=be terrible
at——不擅长，拙于……
She is good at
drawing.
她擅长绘画。
He is good at/skilled
in writing.
他擅长写作。
Bob is
bad/poor/terrible at
baseball.
鲍勃不善于打棒球。
Frank is good at
playing the piano but is
terrible at singing.
弗兰克擅长弹钢琴，但歌却唱得很难听。
I’m bad/poor/terrible at
maths. 我数学学得很差。
He is bad/poor/terrible at playing
tennis. 他网球打得不好。
