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时间:2018-12-15
《高中英语unit3ahealthylifepartiiigrammarit的用法学案新人教版选修》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、Unit3AhealthylifePartIIIGrammarIt的用法一、【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,itisn’t.(5)
2、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
4、生建议强烈Vesa应该度假,但医生的建议没有效果。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
5、)Itissummernow.(9)Itisabout5kilograms.(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)(
6、2)Wemustovercomeeveryobstacle,_________________________(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.Itisourdutytokeepthec
7、lassroomcleanandtidy.(2)It’s/Thereisnousecomplaining(抱怨是毫无用处的),theyneverlisten.(3)Itisashamethatyoucannotjoinusinthisreunion(聚会)(4)Itoccurredtome(我突然想起)thathemighthaveforgottenourdate.(5)Itisreportedthatanotherearthsatellitehasbeenputintoorbit(轨道).(6)Itturnedoutthat(结果)shewasaf
8、riendofmysister.(7)Itwilltakeheralongtimetorecoverfrom
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