代词it和that的用法

代词it和that的用法

it，单数，特指，相当于“the + 单数/不可数名词”；与所指代名词属同一类，而且是同一个。
This is my watch; it’s a Swiss one. (《牛津现代高级英汉双解辞典》)。
Where is my book？Have you seen it？(同上)
以上两句中的it均特指前面所指代名词，和前面所指代名词同类而且是同一个。

that的用法
that, 特指，单数，相当于“the + 单数/不可数名词”，与所指代名词同类，但不同一，具体指哪个取决于其后定语of-短语。例如：
My seat was next to _______ of the teacher.
A. one B. it C. that D. seat
空白处需一代词代替其前可数名词seat,以避免重复。因有后置定语of the teacher, 故所需代词为特指，且与所指代名词同类不同一（老师的座位），故排除A、B、D，答案为C (that)。又如：
Nine in ten parents said there were significant differences in their approach to educating their children compared with _______ of their parents.
A. those B. one C. both D. that
空白处需一代词代前面名词approach, 单数，故排除A、C。因有后置定语of their parents, 特指，故排除B。答案为D (that)。

英语人称代词和物主代词 一,人称代词 第一人称 i me we us 第二人称 you you you you 第三人称 he him they them she her it it 人称代词主格:作主语,表示谁怎么样了,干什么了. i am a teacher. you are student. he is a student, too. we/you/they are students. 人称代词宾格作宾语,表示动作行为的对象. give it to me. let's go (let's =let us) 二,物主代词 形容词性物主代词 my your his her its our your their 名词性物主代词 mine yours his hers its ours yours theirs 形容词性物主代词(my/your/his/her/its/our/their)+名词 而名词性物主代词(mine/yours/his/hers/its/ours/theirs则相单于形容词性物主代词+名词,故其后不必加名词.如: is this your book no,,it isn't, it's hers(her book) jim's , tom's, maria's

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