代词it&that&one-区别

点成教育1.it,one,that作代词时的区别:it特指上下文提到的是同一事物。one泛指上下文提及的同类事物中的一个，属于同一类而不是同一个事物。that常用在比较结构中，代替前面提到的名词，以避免重复。如：—Whohasapen?—Ihaveone.Thebookismine.Itisveryinteresting.TheweatherinShenyangismuchcolderthanthatinGuangzhouinwinter.2.it的用法：1）不知性别的孩子（婴儿）：Hernewbabyistiny.Itonlyweighs2kilos.Whatabeautifulbaby—isitaboy?2)指代前面提到过的事物。如：Thebookonthedeskisnotmine.ItisTom’s.Whereismymap?Ileftitonthetable.Lookatthebird.Italwayscomestomywindow.3)指不明身份的人。如：—Whoisshoutingintheclassroom?—ItmustbeTom.4)表示时间、距离和天气。如：Itisraining(snowing)!—What’stheweatherliketoday?—Itissunny.Whattimeisit?—Itiseighto’clockWhat’sthedate?—It’sthethirdofApril.HowfarisittoChicago?—It’s700kilometers.5）用作形式主语，常用在下列句型中：①It’s+adj.+(forsb.)todosth.②It’stimetodosth./forsth./that从句③Itseemsthat…④It’sone’sturntodosth.⑤It’s+adj.+that从句It’simportantforustolearnEnglish.It’stimetogotoschool.Itseemsthatsheisveryexcited.It’syourturntomakeabriefintroductionaboutyourself.It’snecessarythatyoushouldreadEnglisheverymorning.6)作形式宾语DoyouthinkitdifficulttolearnEnglish?IfounditeasytosurftheInternet.7)引导强调句型Itis/was+被强调部分+that/who/whom+其他成分Itwasonthecoldmorningthatwesawanexcitingfilm.(强调状语)ItisIwho/thatamright.（强调主语）Itwashimthat/whowemetattheschoolgate.（强调宾语）ItwasintheparkthatPeterlosthismoney.(强调状语)