[求助]蓝皮书语法习题精选的两道题9，15

winnymarco

9.Astronomers at the Palomar Observatory have discovered a distant supernova explosion，one that they believe is a type previously unknown to science.

　　（A） that they believe is

　　（B） that they believe it to be

　　（C） they believe that it is of

　　（D） they believe that is

　　（E） they believe to be of

对这道题，不太清楚考点在哪里，所以这道题不太明白应该选哪一个。

15. In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings. which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.

(A)        mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis

(B)        mood swings, perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis ,

(C)        between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis

(D)        between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis

这道题是对distinguish的用法不太熟悉。是否可以用distinguish A from B,即将A 中的their 去掉作为正确答案?

非常感谢！

Colx

NO9:

1.搭配：believe A to be B

              believe that S V O

2.one that they believe 中that作believe的宾语，可省，简洁

NO12:

distinguish A from B

distinguish between A and B

菜鸟OG上说分辨两个的话优先用distinguish between A and B，我不知何原因

xboytime

第二题我也感觉两个语法应该都是正确的，不知道是不是因为distinguish from和distinguish A and B的意思不同而选distinguish A and B的。。。