2019-2020年高中英语 Unit 3 A healthy life Part III Grammar It的用法学案新人教版选修6

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1、2019-2020年高中英语Unit3AhealthylifePartIIIGrammarIt的用法学案新人教版选修6一、【学习目标】1.能根据例句，分析并总结it的用法。2.把握it基本结构之后，会灵活运用。二、【基础知识】一、it用作人称代词[研读思考](1)Thefrogisnotawarmbloodedanimal.It'sacoldbloodedone.(2)---Whoisit?"---"It'sme."(3)Theywatchedthetrainuntilitdisappearedinthedistance.(4)---Isthisyourdog?---No,iti

2、sn’t.(5)Thisisournewcar.Iboughtityesterday.(6)Theygotababyanditwasaten-poundbaby.(7)Someonemusthavebeenhere.Butwehavenoideawhoitwas.(8)HesmokesinbedandIdon’tlikeit.(9)Hermotherkepttellinghernottogooutatnight,butitdidn'thelp.(10)Ihateitwhenpeopletalkwithafullmouth.．[结构归纳]it用作人称代词，主要代替_________

3、________________，以避免重复;it也可指动物或性别不详的婴儿，如例句___________。It还用于指人主要用确定未知人的身份，如例句__________。It还可指代前句或后句所述的抽象事物或抽象环境和情景，如例句___________。[操练巩固]1.Someoneisringingthedoorbell.Goandsee__________.有人在按门铃,去看看是谁。2.ThedoctoradvisedVesastronglythatsheshouldtakeaholiday,but_______.（work）医生建议强烈Vesa应该度假，但医生的建议没有

4、效果。二、it用作非人称代词[研读思考](1)Itisalovelyday,isn’tit?(2)Itwasnearlymidnightwhenshecameback.(3)ItisAprilFirsttoday.(4)Itissome3000kilometersfromBeijingtoGuangzhou.(5)---What'sthecostoftheT-shirt?---Itis150Yuan.(6)Itisthreedollars.(7)Todayitis30degreescentigrade.(8)Itissummernow.(9)Itisabout5kilograms

5、.(10)Itisnoisyhere.[结构归纳]It用作非人称代词,在以上10个例句中分别指代__________、________、________、_________、_________、________、_________、_________、_______、_______、__________。[操练巩固](1)Wearedeterminedtogetourrights____________________________________(不惜代价).(cost)(2)Wemustovereeveryobstacle,_________________________

6、(不管是什么困难)(whatever)(3)Chinaisnolonger__________________________________(过去的样子了)（usedto）三、It做形式主语[研读思考](1)It’simportantforthefigurestobeupdatedregularly．ItisdishonestofhimtosaythathehadadegreefromOxford.Itisourdutytokeeptheclassroomcleanandtidy.(2)It’s/Thereisnouseplaining（抱怨是毫无用处的）,theyneverl

7、isten.(3)Itisashamethatyoucannotjoinusinthisreunion(聚会)(4)Itoccurredtome（我突然想起）thathemighthaveforgottenourdate.(5)Itisreportedthatanotherearthsatellitehasbeenputintoorbit(轨道).(6)Itturnedoutthat（结果）shewasafriendofmysister.(7)Itwilltakeheralong