Unit5 A Delicate World 第 2 课时（Using Language 课件)-高中英语（外研社版2019选择性必修第二册）.pptx

外研社版高中英语选择性必修二

Unit5ADelicateWorld

UsingLanguage

Findandsummarizetheusageandcompositionof“it”asanemptyobject;Payattentiontothelisteningmaterialsandhaveabetterunderstandingofecosystem.LearningObjectivesPracticetheuseofitasanemptyobjectinarealcontexttostrengthenthegrammar;

Grammar

NovisitorwouldthinkitsurprisingthattheislandisaUNESCOWorldHeritageSited.Expertsfeltitnecessarytocomeupwithaplantoremovealltherabbitsfromtheisland.Analyzethestructureofthesentences

83%58%NovisitorwouldthinkitsurprisingthattheislandisaUNESCOWorldHeritageSited.Expertsfeltitnecessarytocomeupwithaplantoremovealltherabbitsfromtheisland.AnalyzethestructureofthesentencesWhatdoes“it”refertoinsentence(a)andsentence(c)?宾语从句不定式

ADDYOURTITLEHERE单击编辑标题单击此处可编辑内容，根据您的需要自由拉伸文本框大小单击编辑标题单击此处可编辑内容，根据您的需要自由拉伸文本框大小单击编辑标题单击此处可编辑内容，根据您的需要自由拉伸文本框大小NovisitorwouldthinkitsurprisingthattheislandisaUNESCOWorldHeritageSiteNovisitorwouldthinkthattheislandbeingaUNESCOWorldHeritageSiteissurprising.c.Expertsfeltitnecessarytocomeupwithaplantoremovealltherabbitsfromtheisland.d.Expertsfelttocomeupwithaplantoremovealltherabbitsfromtheislandwasnecessary宾语从句宾语从句

It作形式宾语条件真正的宾语是有宾语补足语不定式动名词从句具备了这两个条件，形式宾语it一定要用。

It指代不定式think/find/consider/feel/make/regardit+形容词/名词+todosthIfinditpleasanttoworkwithhim.Allthesenoisesmadeitimpossibleformetogoonthework.Theyfeltitmyhonortobeinvitedtospeakhere.Sheconsidersitherdutytotakecareofus.

It指代动名词动词+itnogood/nouse/uselessdoingsthTheprofessorconsidersitnogoodreadingwithoutunderstandingDoyouconsideritanygoodtryingagain?Hefoundituseless(nouse)arguingwithhim.

It指代从句动词+it+形容词/名词+从句WeallthoughtitapitythattheperformancehadbeendelayedYoushouldmakeitclearwhetheryouwantitornot.Theyfounditpleasantthattheywo