英语专业四级模拟训练题之词汇语法单选题 85
1.___ has been known for about a hundred years, its commercial development has taken place since the beginning of the century.
a.which
b.while
c.that
d.as
answer 答案
2.the elderly man who is moving the lawn is ___ the ,mayor himself.
a.no other but
b.no other than
c.no one than
d.none other than
answer 答案
3.to succeed on a scientific research project, ___.
a.one needs to be persistent
b.persistence is needed
c.one needs be a persistent person
d.persistence is one needs
answer 答案
4.man has used metals for centuries in gradually increasing quantities but it was ___ the industrial revolution that they came to be employed in really vast quantities.
a.till
b.until
c.not until
d.not till
answer 答案
5.peter has just arrived, but he talks as if he ___ everything here.
a.will know
b.has know
c.knew
d.know
answer 答案
答案解析
1.[d]【解析】as作为关系代词引导非限制性定语从句，指代后面的整个主句。
2.[d]【解析】none other than意为“不是别人，正是……”。
3.[a]【解析】to succeed in...是动词不定式做目的状语，后面主句的逻辑主语必须和这个不定式的主语一致；need做实意动词时跟带to的不定式。
4.[c]【解析】强调句式it is not until...that...意为“到……时候才……”。
5.[c]【解析】as if引导的状语从句用虚拟语气，表示从句动作与主句动作同时发生，从句用一般过去时。