全国名师优秀公开课--it的用法课件.ppt

《全国名师优秀公开课--it的用法课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、theusageof"it"高考考查动向：1.It作指示代词的替代作用It构成的习语，固定搭配，作形式主语或形式宾语的特殊用法3.强调句型Who’sit?_________me.Lookatthepicture._____isapictureofourschool.It’sIt2._______________________________________---Isthisjacketyours?---Yes,______is.itit做代词一.基本用法:用于代替指示代词this和that.1.________________________

2、________________用作人称代词，代表前面提到的人或事物,也可以指动物或婴儿(未知性别的婴儿或孩子):(自主探究):3.________________________________________Itishalfpasteightnow.It’sonlyhalfanhour’swalkfromheretoourschool.Ihopethatitwillbefinetomorrow.Ithasrainedmuchthisyear.It’sspringnow.It’squiethere.TimeDistanceWeatherWea

3、therSeasonCircumstance用以表示时间、距离、天气、气候、季节、环境等Itisimportanttoknowyourlimitations.Itisagoodideatohavealittlenotebookathand.Itisnotworthwhilequarrellingwithhim.Itisstrangethatithasn’tbeennoticedbefore.Ithappenedthattheharvestwashadthatyear.Itisstillaquestionhowmanypeoplewillbeli

4、eveyou.ItisnobusinessofyourswhereIspendmywinter.Itwasclearenoughwhathemeant.你知道下列句中“it”分别指什么吗?Itisimportanttoknowyourlimitations.Itisagoodideatohavealittlenotebookathand.Itisnotworthwhilequarrellingwithhim.Itisstrangethatithasn’tbeennoticedbefore.Ithappenedthattheharvestwash

5、adthatyear.Itisstillaquestionhowmanypeoplewillbelieveyou.ItisnobusinessofyourswhereIspendmywinter.Itwasclearenoughwhathemeant.替代作主语的___________________而把真正作主语的___________________置于句尾。Summary:it用作形式主语从句,动词不定式、动词-ing，从句、动词不定式、动词-ing二.it做形式主语（1）It+be+名词+that从句e.g.Itis__________

6、____________________that…（2）It+be+形容词+that从句e.g.Itis______________________________that…（3）It+不及物动词+that从句e.g.It________________________________that…（4）It+be+动词的过去分词+that从句e.g.Itis______________________________that…apity/ashame/anhonor/asurprise/awonder/nowonderimportant/like

7、ly/possible/strangeseems/happens/appearssaid/believed/known/reported常见形式：（it做形式主语（5）It+be+形容词/名词+(forsb./ofsb.)+todoe.g.It’scarelessofhertomakeaspellingmistake.It’shardformetofinishitintwodays.It’smydutytotakecareofallthestudents.（6）It+be+名词+doinge.g.It’s____________________

8、_________doingsth.nouse/nogood/awasteoftime(1).Itisapity(ashame/anhonor/ago