inventors and inventions学案5

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1、【学习目标】通过阅读了电话发明家亚历山大·格雷厄姆·贝尔的故事【重点难点】通过阅读材料，理解文章的内容后对该话题进行理解，然后进一步深化该话题，掌握有关的句子。【学习内容】◆课前预习I.wordsandphrases:1.________________n.额头2._____n.稻草；饮料吸管3.______n.三角形4.______n./adj.流；电流/现在的；当前的；5._____adj.稳定的；稳固的6._______________adj.实际的7._______________n.冰箱8._________________开始（做）9.________________

2、_迅速把手伸入；一心投入10.________________次序颠倒，发生故障II.Readthetextcarefullyandchoosethecorrectanswertocompleteeachsentence.1.Bellinvented______bychanceaccordingtothetext.A.Morsecode　　　　　B.telegraphC.telephoneD.tetrahedron2.Whichstatementistrueaccordingtothetext?A.Bellmadeacontributiontothedeafeducatio

3、n.B.Bellinventedthetelephoneforthedeaf.C.Bellthoughtyoushouldn’tthinktoomuchaboutsomethingyouhadneverseenbefore.D.Bellinventedalotofflyingmachineswhilesearchingforakitetocarryamanintotheair.3.Accordingtothetext,Bellgotsuchgreatachievementthanksto_______.A.astrawjoinedtoadeafman’searB.thee

4、xploringaroundproblemsC.amovingelectricalcurrentD.hisexcellentassistantWatson4.Wecaninferfromthetextthat______.A.doingresearchintelegraphhelpedBellgreatlyininventingthetelephoneB.BellwasgiventhepatentafterhesucceededinsendingthefirsttelephonemessageC.inordertomakethebridgesstrongerBelld

5、iscoveredtelephoneD.Belldiscoveredsomanypracticalsolutionsthathemustbeamillionaire◆课堂学习I.MatchthemainideaofeachparagraphPara1A.BellisacontinuingsearcherPara2B.Bell’slifeinformationandespeciallyinterestPara3C.Bell’scuriosityPara4D.Bell’sinventionofthetelephonePara5E.Theimportanceofhisinventio

6、n-----telephonePara6F.Bell’sfirsttelephonemessagePara7G.Bell’snewdiscoveriesinotherareasofinventionII.Tellwhetherthefollowingstatementsaretrueorfalse.1.Bell’smotherwascompletelydeaf,butwiththehelpofBell,shecouldhearwhatBellsaid.2.ItwasBell’sinterestandcuriositythatledtotheinventionoftheteleph

7、one.3.Inordertoimprovehisinvention,BellmadeMorsecode.4.Heinventedthehelicopterandotherflyingmachines.III.ImportantsentencesReadthetextagain,findoutthesentencesandanalyzethem.1.Hefoundthatbypressinghislipsagainsthismother’sforehead,hecouldmake