杭州交通信息网鼻唇角角度:问两道选择题
来源：百度文库 编辑：杭州交通信息网 时间：2024/05/06 02:54:44
1.The bunsen Burner is so named that it is thought ( ) by
Robert Bunsen
A.to be invented B.to have been invented
选哪一个？为什么？
2.-Have you guaduated from collage?
-Yes,( )
A.I have been studying French for 4 years.
B.I studied French there for 4 years.
C.I have studied French for 4 years.
A,C有什么区别？过去时里可以有for？选哪一个？
Robert Bunsen
A.to be invented B.to have been invented
选哪一个？为什么？
2.-Have you guaduated from collage?
-Yes,( )
A.I have been studying French for 4 years.
B.I studied French there for 4 years.
C.I have studied French for 4 years.
A,C有什么区别？过去时里可以有for？选哪一个？
1.B
在be thought 后一般有to have (been) done 和 表示状态的to do/to be两种不定式形式,to have (been) done 是发生在谓语be thought 之前。如：
He is thought to be an honest boy.
They are thought to have invented the story.
2.B
guaduate是过去的动作，但对现在产生影响，故用现在完成时。
现在完成时的另一种用法是延续性动作从过去开始直到现在，所以 C 是四年前开始study直到现在。该题既然回答是yes(已经毕业)，study 不可能持续到现在。study 作为一种持续性动词，答案A 和 C 没有多大区别。
英语里，持续性动作（以及暂时性动作的否定形式）都可以与（for）一短时间连用的，for 常省去（在句首和否定句中一般不省去）。
B 。表示已经完成的动作。
B 根据语境，强调在大学里学4年法语。
同意楼上的