Reaching the top of the mountain was an exciting moment,____all of us would never forget.A.that B.one C.it D.what(附加说明,不然不给分）参考答案是B

Reaching the top of the mountain was an exciting moment,____all of us would never forget.A.that B.one C.it D.what(附加说明,不然不给分）参考答案是B
Reaching the top of the mountain was an exciting moment,____all of us would never forget.
A.that B.one C.it D.what
(附加说明,不然不给分）参考答案是B

Reaching the top of the mountain was an exciting moment,____all of us would never forget.A.that B.one C.it D.what(附加说明,不然不给分）参考答案是B
B,这是一道代词的题,首先我们要搞清代词one, the one,that,ones,those 的区别
代词one, ones, that, those在比较结构中的用法辨析
在比较结构中,为了避免重复,常用替代词替代名词词组或它的中心词.可以这样用的替代词常用的且较难掌握的有one, ones,that和those.
I．替代词one和ones的用法：
1．one只能替代单数名词,one的复数形式ones只能替代复数名词.例如：
My child doesn't like this book．Show her a more interesting one．
2．替代词one或ones必须带有一个限定或修饰词,它们和所替代的名词中心词所指不一定是同一对象,这是替代词one或 ones在用法上的一个重要特征.例如：
I don't like this book．I'd like a more interesting one．
3．当替代词one或ones带有后置修饰语时,它们前面总有定冠词.例如：
Our new cassette is more expensive than the one we had before．
4．当替代词one或ones在形容词比较级、最高级以及某些限定词如this,that, which和序数词等之后,可以省略.例如：
This book is much better than that（one）．
5．替代词one或ones通常不用在物主代词和名词所有格之后.如不可说my one（s）,your one（s）,Peter's one（s）等等.one或
ones也不能用在own之后.
但是,如果有了形容词,one（s）可以和物主代词及名词所有格连用.如：
My cheap camera seems to be just as good as John's expensive one．
6．one作替代词时,在of前面不能用 the one来表示所属关系和类似概念.如不可说：
＊He put down his gun and picked up the one of Henry．
该用一个所有格来表示 He picked up Henry's．
7．当两个形容词表示对照的意思时,不能使用替代词 one.仅在其中一个形容词后加上名词即可.例如：
Don't praise the younger child in the presence of the elder．
8．替代词
one如果不带任何前置修饰语,即它的前面既没有限定词,又没有形容词时,便不是替代名词词组的中心词,而是替代整个名词词组.这时,one＝a＋单数名词.例如：
A cake made of wheat costs less than one made of rice．（one ＝a cake）
one的这种用法是泛指同类事物中的任何一个,相当一个不定冠词,因此它没有复数形式.要泛指复数事物,只能用some.例如：
Here are a few apples．Would you like some（＝some of them）?
II．替代词that和those的用法：
1．that和those通常用作指使代词,也可用作替代词.它们总是伴随着限定性的后置修饰语,分别等于the one和 the ones.例如：
The houses of the rich are generally larger than those of the poor．
2．that也可替代不可数名词,但是 the one则不能.例如：
The resistance of a thicker wire is less than that of a thin one．
以上两例中的that都不能换成the one.
3．that作替代词,只能指物,不能指人.those作替代词,既可指物,也可指人.例如：
The blonde girl I saw was older than the one you were dancing with．
该句中的the one不能换成that.
4．that用作替代词和它所替代的名词词组的中心词的“数”可以不一致.替代单数名词时,只替代“the ＋单数名词”,不可替代“a＋单数名词”.例如：
The song by Schubert is more tuneful than that by Britain．（that＝the
song.song为可数名词.）
请注意,这里说的that只替代“the＋单数名词”,不可替代“a＋单数名词,系指that在句子中实际的作用,并非要求它在句子中所代表的前面出现的词组必须是“the ＋单数名词.例如：
In those days they lived a life worse than that of a beast of burden．
在该句中,前面出现的词组为a life,但that替代的却是the life.
that作为替代词,它不能用于零关系分句（即没有关系代词的定语从句）之前.例如：
The problem confronting us today is not dissimilar from that which the nation
confronted in the 1930s．



代词one, ones, that, those在比较结构中的用法辨析
在比较结构中,为了避免重复,常用替代词替代名词词组或它的中心词.可以这样用的替代词常用的且较难掌握的有one, ones,that和those.
I．替代词one和ones的用法：
1．one只能替代单数名词,one的复数形式ones只能替代复数名词.例如：
My child doesn't like this book．Show her a more interesting one．
2．替代词one或ones必须带有一个限定或修饰词,它们和所替代的名词中心词所指不一定是同一对象,这是替代词one或 ones在用法上的一个重要特征.例如：
I don't like this book．I'd like a more interesting one．
3．当替代词one或ones带有后置修饰语时,它们前面总有定冠词.例如：
Our new cassette is more expensive than the one we had before．
4．当替代词one或ones在形容词比较级、最高级以及某些限定词如this,that, which和序数词等之后,可以省略.例如：
This book is much better than that（one）．
5．替代词one或ones通常不用在物主代词和名词所有格之后.如不可说my one（s）,your one（s）,Peter's one（s）等等.one或
ones也不能用在own之后.
但是,如果有了形容词,one（s）可以和物主代词及名词所有格连用.如：
My cheap camera seems to be just as good as John's expensive one．
6．one作替代词时,在of前面不能用 the one来表示所属关系和类似概念.如不可说：
＊He put down his gun and picked up the one of Henry．
该用一个所有格来表示 He picked up Henry's．
7．当两个形容词表示对照的意思时,不能使用替代词 one.仅在其中一个形容词后加上名词即可.例如：
Don't praise the younger child in the presence of the elder．
8．替代词
one如果不带任何前置修饰语,即它的前面既没有限定词,又没有形容词时,便不是替代名词词组的中心词,而是替代整个名词词组.这时,one＝a＋单数名词.例如：
A cake made of wheat costs less than one made of rice．（one ＝a cake）
one的这种用法是泛指同类事物中的任何一个,相当一个不定冠词,因此它没有复数形式.要泛指复数事物,只能用some.例如：
Here are a few apples．Would you like some（＝some of them）?
II．替代词that和those的用法：
1．that和those通常用作指使代词,也可用作替代词.它们总是伴随着限定性的后置修饰语,分别等于the one和 the ones.例如：
The houses of the rich are generally larger than those of the poor．
2．that也可替代不可数名词,但是 the one则不能.例如：
The resistance of a thicker wire is less than that of a thin one．
以上两例中的that都不能换成the one.
3．that作替代词,只能指物,不能指人.those作替代词,既可指物,也可指人.例如：
The blonde girl I saw was older than the one you were dancing with．
该句中的the one不能换成that.
4．that用作替代词和它所替代的名词词组的中心词的“数”可以不一致.替代单数名词时,只替代“the ＋单数名词”,不可替代“a＋单数名词”.例如：
The song by Schubert is more tuneful than that by Britain．（that＝the
song.song为可数名词.）
请注意,这里说的that只替代“the＋单数名词”,不可替代“a＋单数名词,系指that在句子中实际的作用,并非要求它在句子中所代表的前面出现的词组必须是“the ＋单数名词.例如：
In those days they lived a life worse than that of a beast of burden．
在该句中,前面出现的词组为a life,但that替代的却是the life.
that作为替代词,它不能用于零关系分句（即没有关系代词的定语从句）之前.例如：
The problem confronting us today is not dissimilar from that which the nation
confronted in the 1930s．
由前面的an exciting moment.我们知道选择B
谢谢