Question

英语短文帮忙做下，谢谢

X. Read the following passages, and determine what type of clause each of the underlined parts is.

Passage 1
The Number 13
One of our strongest taboos concerns the number 13.
It is perhaps our most deep-seated superstition; it would be difficult to find a Western-educated person (1)who did not fear or feel uneasy at the prospect of sitting 13 at table, or being allocated room 13 on the 13th floor of a hotel, and so on.
There are also superstitions attached to other numbers; even those master rationalists, the ancient Greeks, believed that all numbers and their multiples had some mystical significance.
Thirteen, as we well know, is regarded with great awe and fear.
The common belief is (2)that this derives from the fact that there were 13 people at Christ’s Last Supper.
This being the eve of his betrayal, it is not difficult to understand the significance given to the number by the early Christians.
In more modern times 13 is an especially unlucky number for a dinner party; (3)should this occur, it is believed (4)that one of the 13 guests will die within the year.
Hotels will avoid numbering a floor the 13th; the progression is from 12 to 14, and no room is given the number 13. Many home owners will use 12½ instead of 13 as their house number.
Yet oddly enough, to be born on the 13th of the month is not regarded with any foreboding at all, which just goes to show (5)how irrational we are in our superstitious beliefs.
(1) A. 名词从句——作动词宾语 B. 名词从句——作同位语
(2) A. 定语从句——修饰先行词 B. 名词从句——作表语
(3) A. 状语从句——表示虚拟条件 B. 状语从句——表示对比
(4) A. 名词从句——作主语 B. 名词从句——作宾语
(5) A. 名词从句——作同位语 B. 名词从句——作动词宾语

Answer 1

(1)B. 名词从句——作同位语（这个句子是定语从句，可是选项没有，但是不可能是A）
(2)B. 名词从句——作表语（be动词后面的句子是表语从句）
(3) A. 状语从句——表示虚拟条件（should置于开头，为虚拟条件，表示如果）
(4) A. 名词从句——作主语（it 做形式主语，that引导的句子是真正的主语）
(5)B. 名词从句——作动词宾语（show后面的句子作为它的宾语从句）