模块三Unit2形式主语it的用法浏阳三中叶青教学目标：通过练习让学生掌握形式主语it的用法教学重点：形式主语it的用法教学难点：用it改写句子以及写短文教学步骤：第一步：复习本单元含it的句子第二步：复习非人称代词it的用法第三步：新授1.通过改写课文原句得出结论：当句子主语是名词性从句时，我们通常用it作形式主语；2.通过翻译句子得出结论：当句子主语是不定式时，我们通常用it作形式主语；3.it用在不及物动词前，如seem,happen,appear,turnout,prove,etc.4.it在强调句型中的用法第四步：练习第五步：总结It作形式主语的句型：1.It+be+adj.+(for/ofsb)+todosthItisnouse/nogooddoingsth.2.It+be+adj.(true,certain,possible,obvious,likely…)that…3.It+be+nounphrase(nowonder,anhonor,apity,…)that…4.It+be+pastparticiple(said,reported,expected,announced…)that…5.It+seems/appearsthat…6.Itdoesn’tmatterthat…补充：it作形式宾语•think/consider/believe/make/feel/find+it+adj/n+that从句/todo/V-ing•Ithinkitnogoodgoingtherenow.•Sheconsideritunbelievabletomarryapoorman.•ThereportermadeitclearthatafewfishermencaughtacrocodileintheYangtzerivertheotherday.•it用在不能直接加宾语从句的动词之后，这些动词有likepreferhatedislikeenjoyfeellikedependonseeto•Ihateitwhenpeopletalkwithmouthfull.•Wetakeitforgrantedthattheywillgetmarried.•Seetoitthatyoubringenoughmoneywhenyougoout.
