Unit5Nature'sTemperGrammarFocus课件八年级下册英语（人教版）

Unit5Nature’sTemperWhathappensduringanaturaldisaster?SectionAGrammar祁阳市第七中学

唐思learningobjectives1.LanguageAbility-Masterthepastcontinuoustense(was/were+doing)andusewhen/whilecorrectlytotalkaboutpastevents.-Learnkeywordsaboutnaturaldisasters,-Masterthepastcontinuoustense(was/were+doing)andusewhen/whilecorrectlytotalkaboutpastevents.2.ThinkingQuality-Comparethedifferencesbetweenwhenandwhileandusetheminrealsituations.-Analyzepeople’sactionsindisastersandunderstandthelogicofpastevents.3.LearningAbility-Learnnewwordsfromcontextandpictures.-Workingroupstofinishtasksandpracticespeakingwithpartners.4.EmotionalAttitude-Knowthepowerofnatureandlearnbasicsafetytipsfordisasters.-Valuefamilyloveandcare,andbereadytohelpothersinneed.Whatweretheydoingwhenthetyphoonhit?Theywerereadingtogetherwhenthetyphoonhit.Whatweretheydoingwhenthetyphoonhit?Theywerehavingdinnerwhenthetyphoonhit.Whatwashedoingwhenthetyphoonhit?Hewasdrivingbackhomewhenthetyphoonhit.Readthesentences.Underlinetheverbswhichshowanongoingactioninthepast.4aWhatwereyoudoingwhileitwassnowingheavily?Iwastravellingonthetrainthen.Whatwereyourfamilydoingwhenthetyphoonhit?MychildrenandIwerereadingtogether.Whenmyneighbourcalled,myfamilywerehavingdinner.Weweredrivinghomewhenthestrongwindsstarted.Whileweweredrivinghome,thestrongwindsstarted.Itwasraininghardwhileweweredrivingback.过去进行时was/were+doing过去进行时的定义核心定义表示过去某个具体时间，或者过去某个时间段里，正在进行、正在发生的动作。通俗理解就像在拍视频，定格了过去某一刻正在发生的画面，不是完成的动作，是“正在做”的状态。Tips常和表示过去具体时间的词连用：atthattime（在那时）、at9lastnight（昨晚九点）、when...（当……时候）...PastProgressiveTense过去进行时的结构

基本结构：否定形式：一般疑问句：肯定回答：否定回答：特殊疑问句：主语+was/were+doing+其他.主语+wasn’t/weren’t+doing+其他.Was/Were+主语+doing+其他？Yes,主语+was/were.No,主语+wasn’t/weren’t.特殊疑问词+was/were+主语+doing+其他？过去进行时的用法1.

表达过去某一具体时刻，正在做的事。昨晚8点，我正和家人一起看电视。铃声响起时，她正在教室里看小说。At8o'clocklastnight,IwaswatchingTVwithmyfamily.Whenthebellrang,shewasreadinganovelintheclassroom.过去进行时的用法2.

过去某段时间，一直持续做的事昨天晚上7点到9点，我一直在做数学作业。整个周末，他们都在为期末考试做准备。From7to9yesterdayevening,Iwasdoingmymathhomework.Allweekend,theywerepreparingforthefinalexam.

过去进行时的用法3.

两个过去动作同时发生（when/while引导）我正在看书，而我的父母正在看电视。铃响的时候，我们正在上英语课。IwasreadingabookwhilemyparentswerewatchingTV.WewerehavinganEnglishclasswhenthebellrang.when和while引导的时间状语从句中谓语动词有什么区别？Whatwereyoudoingwhileitwassnowingheavily?Whatwereyourfamilydoingwhenthetyphoonhit?Whenmyneighbourcalled,myfamilywerehavingdinner.Weweredrivinghomewhenthestrongwindsstarted.Whileweweredrivinghome,thestrongwindsstarted.Itwasraininghardwhileweweredrivingback.

when&while引导的时间状语从句when引导的时间状语从句可以表示一个时间点,也可以表示一个时间段。从句中可以用瞬间性动词，也可以用延续性动词。when引导的时间状语从句当山体滑坡发生时，天正下着大雨。当野火在山间蔓延时，电力中断了。Itwasrainingheavilywhenthelandslidehappened.Thepowerwascutoffwhenthewildfirewasspreadingacrossthemountain.while引导的时间状语从句常指一个时间段，从句中的动词常为延续性的。while有时还可表示主句的动作与从句的动作同时发生。while引导的时间状语从句他在等公交的时候，朋友叫住了他。妈妈在做饭时，我正在写作业。Whilehewaswaitingforthebus,hisfriendcalledhim.Whilemymomwascooking,Iwasdoingmyhomework.while后通常加过去进行时的句子while引导的时间状语从句既可以指时间段，也可以指时间点

一般只指一段时间（时间段）从句中的谓语动词

可以是延续性动词（如wait,cook）也可以是瞬间性动词（如happen,arrive）

只能是表状态的延续性动词（如wait,read,run,rain）常用时态搭配when后面通常加一般过去时的从句whenwhen和while的区别when后可长亦可短，while后面只可长；若是两边都为长，中间while来帮忙;when多接一般过去时，while常跟进行时。记忆口诀注意：有时when可以代替while，而while则不能代替when。at7:00lastnight,atthatmoment,while…过去进行时相同点动词过去式（did）

was/were+现在分词(doing)动词形式

都表示过去发生的动作或状态

过去某一时刻/时段正在进行的动作，强调动作的过程/状态时间提示词yesterday,lastweek,in2020,justnow,ago…一般过去时一般过去时和过去进行时的区别核心含义

过去发生的动作，已经完成，强调动作的结果/事实经典例句Icleanedmyroomyesterday.（昨天我打扫了房间——强调过去发生了这个动作,已做完）Iwascleaningmyroomat5yesterday.（昨天5点我正在打扫房间——强调当时正在做）4bCombineeachpairofsentencesusingwhenorwhile.1.Ididmyhomework.Thetyphoonlandedonthecoast.Iwasdoingmyhomeworkwhenthetyphoonlandedonthecoast.2.Thepowerwentout.MyfatherandImadedinner.MyfatherandIweremakingdinnerwhenthepowerwentout.3.Katewrotealetter.Herbrothercalledtowarnherofthestorm.Katewaswritingaletterwhenherbrothercalledtowarnherofthestorm.While/WhenIwasdoingmyhomework,thetyphoonlandedonthecoast.非延续性延续性While/WhenMyfatherandIweremakingdinner,thepowerwentout.While/WhenKatewaswritingaletter,herbrothercalledtowarnherofthestorm.延续性非延续性非延续性延续性4.Myparentspackedthesupplies.Imovedourthingsoffthefloor.MyparentswerepackingthesupplieswhileIwasmovingourthingsoffthefloor.5.Isleptsoundly.Itrainedcatsanddogs.Iwassleepingsoundlywhileitwasrainingcatsanddogs.延续性延续性延续性延续性常用的英语俚语，“倾盆大雨”。Whatnaturaldisastersisthis?It'satornado.

Let'sreadJenny'sstoryandseewhatherfamilywasdoingwhenthetornadohit.4cCompletethepassagewithwas,were,when,orwhile.WhenJennylookedup,thickblackcloudswereforminginthesky,andtherain______beatingagainsttheirroof.“Quick,thisway,”saidDad.Thefamilyrantothesaferoomatonce.____________theywerewaiting,Jenny'slittlesisterstartedtocry.Dadgavehersomechocolateandtoldherthatthey______hidingfromanangrylion.Soon,shewaslaughingagain.Atlast,thestormpassed.______theysteppedoutside,theyfoundthesunshining.Peoplewereaskingoneanotheriftheyweresafewhilesome______startingtoclearthestreets.Jennysmiled.Thetornadowasscary,butitalsobroughteveryoneclosertogether.wasWhen/WhilewereWhenwere非延续性延续性1.WhatdisasterdidJenny'sfamilymeet?2.Weretheysafeduringthedisaster?Howdoyouknow?Whoplayedakeyroleintheprocess?3.WhatdidJenny'sfathercomparethetornadoto?Doyouthinkatornadoislikeanangrylion?Inwhatwayaretheyalike?ReadagainandanswerTheymetatornado.Yes,theywere.Hecomparedthetornadotoanangrylion.Theyrantothesaferoom.Jenny'sfatherplayedakeyrole.

Yes.Bothareveryfierceanddangerous.4.WhatdoyouthinkofJenny'sfather?5.Whydoesthewritersay"Thetornadowasscary,butitalsobroughteveryoneclosertogether."?ReadagainandanswerBecauseitmadethefamilycaremoreabouteachother.calmresponsiblebrave...4dImaginethatyouareareporter.InterviewamemberofJenny'sfamilyandfindoutwhatheorshewasdoingaroundthetimeofthetornado.A:Whatwereyoudoingwhenthetornadohit?B:MyfamilyandIwerehidinginasaferoom.A:Whatwereyoudoingwhileyouwerewaitingthere?B:Oh,whileI...TimeInterviewquestionBeforethetornado-Howwastheweatherbeforethetornadohit?-Wherewereyourfamily?Duringthetornado-Whatdidyoudowhenthetornadocamenear?-Whoactedmostquicklyinyourfamily?-Wereyouafraidofthetornado?Wasanymemberofyourfamilyafraidofit?-Howdidyourfamilymemberscomforteachother?Afterthetornado

-Whatwastheweatherlike?-Whatdidthepeopleinyourneighbourhoodsaytoeachother?-Whatdidtheydo?-Howdoyoufeelaboutyourfamilyandyourneighbourhood?Self-evaluationPeerassessmentTeacherassessmentPronunciationandIntonationFluency流利度GrammarandVocabularyAccuracy准确性ExpressionandCreativityThoughdisastersarecruel,humankindnessneverfades.Aftereverystorm,abrightrainbowwillsurelyshineagain.灾难无情人有情。

风雨过后，定有彩虹。Words:

naturaldisaster,tornado,typhoon...Sentences:

-pastcontinuoustense:was/were+doing,-Whatwereyoudoingwhen...?-Iwas...when/while...Functions:Wecantalkaboutwhatpeopleweredoingwhenanaturaldisasterhappened.Summary1.

I__________(do)myhomework__________thepowerwentout.2.

Kate__________(write)aletter__________herbrothercalled.3.

Myparents__________(pack)supplies__________itrainedcatsanddogs.4.

We__________(drive)home__________thestrongwindsstarted.5.

Thechildren__________(read)together__________thetyphoonhit.语法填空Exercisewasdoingwhen

waswriti