1 we offered him our congratulations___ his passing the college entrance exams.
a) at b) on c) for d) of
选d.congratulations on sb/for sth.后面接的不是人,而是事.
2 dressed ____red,she looks more beautiful than ever.
a) for b) on c) with d) in
选d.来自于 be dressed in 这个短语.
3 You should write ____pencil,that is,______a pencil.
a) in;with b)with;with c)in;in d)with;in
选a.write in+物质名词；with+具体名词.
4Out-of-door exercises are always good _____one's health.
a) to b)for c)in d)at
选b.be good for sb/sth：对...有好处；be good at:善于；擅长.do good（n) to:对...有益处
5 weather changes_____the seasons.
a)to b) during c)on d)with
选d.句意：天气随着季节而变化.选项中只有with有此意.
6 The reason for his success is ______he worked hard.
a) why b )that c)because d)for
选b.reason作主语,后面的表语从句不能用because,只用that.
7 Young _____he was,he was equal to the task.
a)as b) because c)if d) unless
选a. as引导让步状语从句,意思是“尽管；虽然”,用倒装形式.
8 You can read a magazine _____【 your 估计你打错了吧?】 wait.
a) during b)for c)while d)until
选a,during在...期间,介词.
用while多用进行时态.
如果没打错,大致能勉强选c,引导从句.
9 the ship changed its course ____ there was a 【strom.绝对打错了!storm】
a) on account of b) due to
c) because of d) because
选d.四个选项都是“因为；由于”之意,但是,只有because 能引导从句,其它构成介词短语.