Unit 3 The World of Science P2 grammar & writing ppt课件（含学案） -（2019）新外研版高中英语必修第三册.rar

1、Unit3 P2 grammar+writing 导导学案学案Learning aims:1.Review the grammatical rules about the Present Perfect Passive and can use it correctly in different contexts.2.Read an experiment report and understand the structure of an experiment report.3.Learn how to write an experiment report.Part 1 Present Perfe

2、ct Passive Step 1 1. 什么时候用现在完成时态？标志性时间状语有哪些？2.完成时的特殊句式有哪些？Step 2 exercises1)They _(tell) many times not to make noises. 他们被多次告知不要喧哗。2)_ his bike _ ? 他的自行车修好了吗 ? 3)The books _by the students.那些书还没有被学生们借走。 4)The bridge _(build) last year. 5)Great changes _(take) place in my hometown. 6)So far, many vi

3、llages _(visit).7)The party _ _ _(plan) since the New Year. 8)With the help of high technology, more and more new substances _(find) in the past few years.Step 3 Textbook P29 Activity2 Rewrite the underlined parts using the present perfect passive.Part 2 Writing an experiment reportStep 1 Activity 5

4、 Read the instructions for the experiment and answer the questions.Step 2 Learn about the literary form and how to write an experiment report.Step 3 writing参考话题词汇do/ carry out/ conduct an experiment 做实验 aim 目的; 目标 material 材料procedure 步骤 stage 阶段result 结果 draw/ come to a conclusion 得出结论Step 4 Recite

5、 the important sentencesConclusion:1. Review Present Perfect Passive2. Learn the structure and the write procedure of an experiment report.3. Learn how to write an experiment report Unit 3 The World of Science Period 2 grammar & writingEverygreatadvanceinsciencehasissuedfromanewaudacityofimagination

6、.EmersonLearningaims:1. ReviewthegrammaticalrulesaboutthePresentPerfectPassiveandcanuseitcorrectlyindifferentcontexts.2. Readanexperimentreportandunderstandthestructureofanexperimentreport.3. Learnhowtowriteanexperimentreport.Step 1【回顾】关于现在完成时态，你能想起些什么？1.什么时候用现在完成时态？标志性时间状语有哪些？已完成：发生在过去的动作，已完成，强调对现在

7、产生的结果或者影响;常与before，already,never，ever，yet等连用；未完成：某个动作从过去一直持续到现在，还有可能继续延续下去；常与recently,lately，eversince，sincethen,sofar，until/tillnow,uptonow,in/during/overthepast/last.years，thesedays,for+时间段等连用2.特殊句式有哪些？Itis/hasbeen一段时间since从句This/That/Itisthefirst/second/.timethat现在完成时Part 1 Present Perfect Passiv

8、e当主语是动作的承受者时，用被动语态：have/hasbeendoneStep2 1. They_(tell)manytimesnottomakenoises.他们被多次告知不要喧哗。2. _hisbike_?他的自行车修好了吗?3. Thebooks_bythestudents.那些书还没有被学生们借走。注意：现在完成时态的一般疑问句和否定形式。4. Thebridge_(build)lastyear.5. Greatchanges_(take)placeinmyhometown.6. Sofar,manyvillages_(visit).7. Theparty_(plan)sincethe

9、NewYear.8. Withthehelpofhightechnology,moreandmorenewsubstances_(find)inthepastfewyears.注意：一般过去时态仅表示发生在过去的动作，而现在完成时态强调过去动作对现在的影响。havebeentoldHasbeenrepairedhavenotbeenborrowedwasbuilthavetakenhavebeenvisitedhasbeenplannedhavebeenfoundPart 1 Present Perfect PassiveStep 3 ExerciseActivity2:Rewritetheu

10、nderlinedpartsusingthepresentperfectpassive.1.Manythingsinourliveshavealreadybeenaffected.2.Forinstance,3D-printedhamburgershavebeenservedtocustomersinsomerestaurantsinLondon.3.Butperhapsthemostsignificantsuccessthathasbeenachievedtodateisinmedicine.4.Humanbodyparts,includingabeatingheart,havebeenma

11、dewith3Dprintingtechnology.5.InBrazil,anew3D-printedshellhasbeengiventoaturtleinjuredinaforestfire!就连连也包括在内；甚至包括迄今为为止Part 1 Present Perfect Passive面目全非；识别识别 不出Step 1Activity 5 Read the instructions for the experiment and answer the questions. 1.Whatdoyouthinktheresultsofthisexperimentwillbe?/skwiz/v

12、.挤挤；压榨Theeggwillsqueezeintothebottle.2.Whatcanyoulearnfromthisexperiment?Theexperimentshowsustheeffectsofairpressure.Airpressureindeedexists,anditisverypowerful.Part2WritinganexperimentreportEgginaBottleExperimentWhydoestheegggetpushedinsidethebottle?Theanswerisallaboutairpressure.Ifyoufirstsettheeg

13、gonanemptybottle,theairpressureinsidethebottlematchestheairpressureoutside,sonothinghappens.Butwhenyoupoursomehotwaterintothebottle,itcausestheairinsidetoheatupandexpandrapidly,sosomeoftheairinthebottlegetsout.Whentheeggisputonthebottle,theairpressureoutsideofthebottlepushestheeggintothebottle.There

14、sultisanunbalancedforcetheforceoftheairpushingontheeggfromoutsidethebottleisgreaterthantheforceoftheairpushinguponitfrominsidethebottle.Asaresult,theeggispushedintothebottle.Background information【文体解读】话题特点实验报告是把实验目的、方法、过程、结果等记录下来,经过整理写成的书面汇总材料。实验报告要明确体现实验目的、步骤和结果,对具体实验现象的描述要客观准确,分析要全面具体,语言要简洁质朴、通俗易

15、懂。【布局】Part2WritinganexperimentreportExperimentreportIntroductionTheaimoftheexperiment.Thematerialsusedintheexperimentandtheexplanationoftheprocedure.Theresultsoftheexperimentandsomethingyouhavelearned.MainbodyConclusionStep 2Activity 6 Complete the boxes with the information in Activity 5. Do furthe

16、r research if necessary.话题词汇do/carryout/conductanexperiment做实验 aim目的;目标material材料procedure步骤stage阶段result结果draw/cometoaconclusion得出结论Part2WritinganexperimentreportIntroduction:Thisexperimentisdesignedtoprovewhetherairpressurereallyexists.Mainbody:Ipreparedthematerials,includingaboiledegg,aglassbottl

17、ewhoseneckisabitsmallerthantheegg,andsomehotwatertodothisexperiment.Procedure:First,Iremovedtheshelloftheegg.Then,Icarefullypouredsomehotwaterintothebottle,andshookthebottlegently.Afterafewminutes,Ipouredoutthehotwater.Justatthesametime,Iquicklyplacedtheeggontopofthebottle.Conclusion:Aftertheexperim

18、ent,Icandrawtheconclusionthatairpressureindeedexists,anditisverypowerful.Itistheforceoftheairthatpushedtheeggintothebottle.Structure of the passagePossibleversionTheexperimentisdesignedtoprovewhetherairpressurereallyexists.Atthebeginningoftheexperiment,Ipreparedthematerials,includingaboiledegg,aglas

19、sbottlewhoseneckisabitsmallerthantheegg,andsomehotwater.Withallthethingsprepared,theexperimentbegan.First,Iremovedtheshelloftheegg.Then,Icarefullypouredsomehotwaterintothebottle,andshookthebottlegently.Afterafewminutes,Ipouredoutthehotwater.Justatthesametime,Iquicklyplacedtheeggontopofthebottle.Tomy

20、amazement,theeggsqueezedintothebottleatonce.Aftertheexperiment,Icandrawtheconclusionthatairpressureindeedexists,anditisverypowerful.Itistheforceoftheairthatpushedtheeggintothebottle.Recitethesesentences1.这个实验是为了证明空气压力是否真的存在。Theexperimentisdesignedtoprovewhetherairpressurereallyexists.2.在实验开始时，我准备了材料

21、，包括Atthebeginningoftheexperiment,Ipreparedthematerials,including3.一切准备就绪，实验开始了。首先Withallthethingsprepared,theexperimentbegan.Firstly4.然后，我小心翼翼地往瓶子里倒了一些热水，轻轻地摇晃着瓶子。Then,Icarefullypouredsomehotwaterintothebottle,andshookthebottlegently.4.使我惊奇的是，鸡蛋立刻被挤进了瓶子。Tomyamazement,theeggsqueezedintothebottleatonc

22、e.5.经过实验，我可以得出结论，空气确实存压强在，而且是非常强大的。是空气的力量把鸡蛋推进了瓶子。Aftertheexperiment,Icandrawtheconclusionthatairpressureindeedexists,anditisverypowerful.Itistheforceoftheairthatpushedtheeggintothebottle.Conclusion:1.ReviewPresentPerfectPassive2.Learnthestructureandthewriteprocedureofanexperimentreport.3.LearnhowtowriteanexperimentreportThank you