課標(biāo)分析:在初中英語(yǔ)狀語(yǔ)從句和定語(yǔ)從句學(xué)習(xí)的基礎(chǔ)上,繼續(xù)進(jìn)行名詞性從句的學(xué)習(xí),完成復(fù)合句的學(xué)習(xí),從而提高學(xué)生閱讀分析復(fù)雜句子成分的能力,提高學(xué)生的閱讀水平,并在此基礎(chǔ)上提高學(xué)生語(yǔ)言輸出的能力.教材分析:本部分涉及的要點(diǎn)是以不同的引導(dǎo)詞如what,why,whether等引導(dǎo)的名詞性從句或以形式主語(yǔ)出現(xiàn)的名詞性從句在句中作主語(yǔ)的用法,引導(dǎo)學(xué)生用''發(fā)現(xiàn)法''找出語(yǔ)法規(guī)律,從簡(jiǎn)到繁,逐步學(xué)會(huì)名詞性從句作主語(yǔ)的用法.學(xué)情分析:學(xué)生在初中經(jīng)過(guò)了狀語(yǔ)從句的學(xué)習(xí)和高一對(duì)定語(yǔ)從句的學(xué)習(xí)后,在必修3進(jìn)行名詞性從句的學(xué)習(xí).在第2單元學(xué)習(xí)了賓語(yǔ)從句和表語(yǔ)從句之后,本單元學(xué)習(xí)名詞性從句中的主語(yǔ)從句,從而讓學(xué)生了解英語(yǔ)復(fù)合句的基本知識(shí),在語(yǔ)言輸出方面作好準(zhǔn)備,同時(shí)對(duì)英語(yǔ)閱讀能力的提高更加有幫助.Unit4Astronomy:thescienceofthestarsPeriod4Learningaboutlanguage--Grammar:TheSubjectClauseTeachingplan&designTeachinganalysis：Thisisthefourthteachingperiodofthisunit.Thisteachingperiodmainlydealswiththefollowing:1.Reviewingnounclauses2.Learningthenewgrammaritems:nounclausesasthesubject.Studentsoftenfeelnounclausesabstractanddifficulttolearn,soitisnecessarytomakethelessonsimpleandlivelyinordertoletiteasytoacceptandunderstand.Firstly,theteachercangivethestudentstheaimofthisclass.Secondly,givethekeypointsofeachpartclausebygivingalotofexamplesentences.Thirdly,dotheexercisesinDiscoveringusefulstructuresandmoreexercisesforstudentstomastertherelatednounclauses.Finally,summarizetheuseofnounclausesasthesubjectandletstudentsmakeitclearhoweachnounclauseisbeingusedinthesituations.Attheendoftheclass,askstudentstodotheexercisesinUsingstructuresonPage64(theworkbookexercises)andmoreadditionalexercisesforconsolidation.Teachingimportantpoints：Getstudentstounderstandandusenounclausesasthesubject.Teachingdifficultpoints：Enablestudentstolearnhowtousenounclausesasthesubjectcorrectly.Teachinggoals：Knowledgeaims：1.Getstudentstoknowmoreaboutnounclauses.2.Letstudentslearnnounclausesasthesubject.Whatitwastobecomewasamystery......itwasnotclearwhetherthesolidshapewastolastornot.Abilityaim：Enablestudentstousenounclausesasthesubjectcorrectlyandproperlyaccordingtothecontext.Emotionalaims：1.Getstudentstobecomeinterestedingrammarlearning.2.Developstudents’senseofgroupcooperation.Teachingmethods：Task-basedteachingandlearningCooperativelearningandpracticeDiscoveringandSummarizingTeachingaids：AblackboardandsomePPTTeachingprocedures&ways：→Step1Greeting&Lead-in2’Goodafternoon,everyoneThisclass，let’sdealwiththegrammarpart：TheSubjectClause.→Step2Revising5’Revisenounclausesastheobjectandasthepredicative→Step3Grammarlearning23’主語(yǔ)從句作主語(yǔ)用的名詞性從句,因其在復(fù)合句中作主語(yǔ),又稱主語(yǔ)從句。（1）連接詞:1)連詞that,whether等。that引導(dǎo)主語(yǔ)從句只起引導(dǎo)作用,本身無(wú)實(shí)際意義,在主語(yǔ)從句中不充當(dāng)任何成分,但不能省略。Thatshelefthimcuthimtotheheart.她的離開(kāi)使他很傷心。由whether引導(dǎo)的主語(yǔ)從句放在句首、句末都可。Whetheritwillpleasethemisnoteasytosay./Itisnoteasytosaywhetheritwillpleasethem.很難說(shuō)這會(huì)不會(huì)使他們高興。2)連接代詞who,what,which,whoever,whatever,whichever等。Whatseemseasytosomepeopleseemsdifficulttoothers.對(duì)某些人看來(lái)很容易的事,對(duì)另外一些人可能很困難。3)連接副詞when,where,how,why等。Whyhediditremainsamystery.他為什么做那件事依然是個(gè)謎。（2）位置主語(yǔ)從句可以前置,也可以后置。用it作形式主語(yǔ),而把主語(yǔ)從句放在句末,常用下面幾種句型:1)It+be+表語(yǔ)+主語(yǔ)從句Itisstilluncertainwhetherheiscomingornot.他是不是來(lái)還沒(méi)有確定。2)It+不及物動(dòng)詞+主語(yǔ)從句Ithappensthattheywereabsent.他們碰巧缺席了。3)It+及物動(dòng)詞（被動(dòng)語(yǔ)態(tài)）+主語(yǔ)從句IthasbeendecidedthattheexhibitionwillnotopenonSundays.現(xiàn)經(jīng)決定展覽會(huì)星期日不開(kāi)放。注意:1)主語(yǔ)從句在句首時(shí),必須由連接詞引導(dǎo),不能省略這些連接詞;但是如果用it作形式主語(yǔ),而把主語(yǔ)從句放在句末時(shí),從屬連詞that可以省略。他們相互喜愛(ài)是很自然的。誤:Theyshouldlikeeachotherisnatural.正:Thattheyshouldlikeeachotherisnatural.正:Itisnatural(that)theyshouldlikeeachother.2)如果主語(yǔ)從句放在句首,不能用if引導(dǎo);但是如果用it作形式主語(yǔ),而把主語(yǔ)從句放在句末時(shí),也可以用if引導(dǎo)?，旣愂遣皇钦媛?tīng)見(jiàn)他了,很值得懷疑。誤:IfMaryreallyheardhimisreallydoubtful.正:WhetherMaryreallyheardhimisreallydoubtful.正:Itwasdoubtfulwhether/ifMaryreallyheardhim.→Step4Grammarpractice15’1.AskstudentstodosomeExercisesinDiscoveringusefulstructures.Firstletthemfinishthemindividually.Thenchecktheanswerswiththewholeclass.Givesomeexplanationsifnecessary.10’2.Askstudentstofinishthefollowingexerciseswithin5minutes.Thenchecktheanswerswiththewholeclass.PS:EnglishWeeklyexercises：Fillintheblankswithproperconnectors(連接詞).1._____hegotthefirstprizeintheEnglishContestsurprisedallofus.2._____wewillgotovisitHongKonginthiswintervocationremainsunknown.3._____willtaketheplaceofMrLiuasournewheadmasterhasn’tbeendecided.4._____causedtheaccidenttohappenhas’tbeenmadeclearyet.5.It’sapity__hecan’ttakepartintheoutingwithusbecauseofhissickmother.6.Itdoesn’tmatter_____shehasbeentoAmericaornot._______reallymattersishowfluentlyshecanspeakEnglish.7.Itsohappened______hearrivedhomewhenIwentouttopickhimupatthestation.8._______hefoundthewayhomeafterhelosthiswayinthedeepforestisnotcleartous.→Step5Makeasummaryaboutthesubjectclause2.用that/whether/if//where/how/when/why/who/what/which/howmuch/etc.來(lái)連接主語(yǔ)從句.That在主語(yǔ)從句中不能省略.3.名詞性從句只能使用陳述句語(yǔ)序.4.有時(shí)為了使句子結(jié)構(gòu)平衡,避免“頭重腳輕”,常用it作形式主語(yǔ),而把從句放在后面.4種句型。5.主語(yǔ)從句作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞一般用單數(shù)形式。Step6Domoreexercisestomasterthesubjectclauses.1.______wewillgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where2._______thattheycanpassthewrittenexamthistime.A.ThatishopedB.ItishopedC.IthopesD.Thathopes3._____madetheschoolproudwas______morethan90％ofthestudentshadbeenadmittedtokeyuniversities.A.What;becauseB.What;thatC.That;whatD.That;becauseInthereadingpassagetherearesomesentenceswherenounclausesareusedasthesubject.translatethemintoChinese.Suggestedanswers:1)Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.地球會(huì)變成什么（樣子）,直到45億至38億年前這個(gè)云團(tuán)變成一個(gè)固體的球狀物,才確定下來(lái)。2)Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.地球變得激烈動(dòng)蕩,不知道這個(gè)固體形狀是否會(huì)繼續(xù)存在下去。3)Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.更重要的是,隨著地球的冷卻,地球的表面就開(kāi)始出現(xiàn)了水。4.Sowhetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.所以,在未來(lái)的數(shù)百萬(wàn)年中,生命能否在地球上延續(xù)取決于這個(gè)問(wèn)題能否得到解決。2.Thinkinganddiscussing3’Letstudentsreadthesentencestheypickedout,thinkoveranddiscusswithapartnerhoweachofthesenounclausesisbeingusedinthesituations.Ifstudentshavesomedifficulty,givethemahand.Questions：(whataretheconnectors(連接詞)?Howdoweusethemcorrectly?)Step7HomeworkFinishExesIV.V.VIinworkbook評(píng)測(cè)練習(xí):1._____hegotthefirstprizeintheEnglishContestsurprisedallofus.2._____wewillgotovisitHongKonginthiswintervocationremainsunknown.3._____willtaketheplaceofMrLiuasournewheadmasterhasn’tbeen