1.DON'T USE WORDS,EXPRESSIONS,OR PHRASES___ONLY TO PEOPLE WI

1.DON'T USE WORDS,EXPRESSIONS,OR PHRASES___ONLY TO PEOPLE WITH SPECIFIC KNOWLEDGE.
A.being known B.known C.to be known D .having been known
2.________ to sunlight for too much time will do harm to one's skin
.A.Exposed B.Having exposed C.Being exposed D.After being exposed
3.It is wise to have some money_____for old age.
A .put down B.put up C.put forward D.put away
4._____the price,you have to pay the sale tax on it,
A.In addition B.Apart from C.Except D.Except for
5.Who____for the pollution of this lake?
A.should blame B.is to be blamed C.blames D.is to blame
6.The theory____by Einstein___to be true.
A.to be put forward;has proved B.has been put forward ;has been proved C.is put forward;has proved
D.put forward;has been proved
7.Look at the trouble I am in!If only I____your advice.
A.followed B.would follow C.had followed D.should follow

/>B  考察非谓语动词,过去分词做后置定语,known only to people with specific knowledge修饰前面出现的words,expressions or phrases,动词know与被修饰名词为被动关系,因此用过去分词,表示“被动,不计较时间”,一般描述理论的句子或描述常态的句子都直接选过去分词.
A选项也是被动,但它表示“与谓语同时发生”,C被动,表示“后于谓语发生”,D被动,表示“先于谓语发生”,一般不做后置定语,即使做,也要做成非限制性定于形式.

C  expose需要用被动形式,be exposed to,因此B不对.此句缺主语,A过去分词不能做主语,D是状语,C现在分词可做主语.

D  put away表示“储存”,在高中还有一个意思经常考,就是“收拾好”,可表示具体的,也可表示抽象的,“收拾好东西”和“收拾好情绪/整理情绪”.

B  表示“除了……之外,还有……”,A与B是一个意思,但是A缺少介词,应该是in addition to；C与D表示“除了……之外”.

D  考察非谓语动词的动词不定式,被动意义用主动形式表达,blame与let（出租）在动词不定式作表语时,都用主动的.

D  第一空考察非谓语动词的过去分词做后置定语,理论与题1一样；由于只有D选项的第一空正确,第二空就不用解释了.A 选项的第一空虽然也是非谓语,也表示被动,但它是“后与谓语发生”的意思,题意不对.B与C的第一空都是谓语,简单句中不能用两个谓语.

C  考察虚拟语气,if only条件状语从句必须虚拟,采用倒退时态的原则,根据上文,可推测出是“过去没有听取你的建议”,因此是对过去的虚拟,倒退称过去完成时.