英语单选2题（需理由）In winter children like to make snowmen with---of

第一题
A.错误.修改正确应为lots或a lot.
lots of＝a lot of 后面接可数名词和不可数名词均可,接可数名词时谓语用复数,接不可数名词时,谓语用单数
B.错误.修改正确应为plenty.
plenty of 后面接可数名词和不可数名词均可,接可数名词时谓语用复数,接不可数名词时,谓语用单数.
C.正确.blocks of意为“一块块的.”
D.错误.正确结构应为a series of.但意思为“一系列、一连串”.与句子意思不合.
a series of后面跟的东西是可数名词复数或者不可数名词.如：
The theory is based on a series of wrong assumptions.
这一理论是以一系列错误的设想为依据的.
A series of mischance happened.
一连串不幸的事发生了.
第二题
A.正确.
as it is用在句末时,常跟在名词或代词之后,表示“照旧、照原来样子”之意.It 指其前面句中的名词或代词.若前述的是复数名词,“as it is”则需变成“as they are”.如：
Carry out the plan as it is.
请按照原计划执行.
Leave the things as they are.
请别动这些东西.
B.错误.意思为“尽管它没有多大价值”,与句意不符,原题中without any changes强调“不要做修改”,可见意思是“照原来的样子”,选A.
C.错误.what it is是一个从句,相当于一个名词,意为“它是什么”
如：I don't know what it is .
我不知道那是什麽.
D.错误.
so it is 是表示进一步的强调,是说事情确实是这样,与句意不符.
例如：It is good to practise everyday,so it is
每天锻炼身体是好习惯,确实是这样