教案课时4Grammarandusage.docx

牛津高中英语教学设计
单元：Unit4Publictransport
板块：Grammarandusage

Thoughtsonthedesign:
本课将分别从四个方面具体介绍现在分词和过去分词的用法（av-edorav-inglikeanadjective,av-edorav-inglikeanadverb,passiveandperfectformsofv-ing,thesubjectofv-ingorv-edclause）。由于学生在上语法课时，往往会思想不集中或有枯燥厌倦之感，所以，教师采用“悟、导、练”的教学方法，即首先呈现一些典型例句，让学生通过朗读自己领悟语言规则，然后再引导他们在对比分析的基础上，进行归纳和总结。最后配一些相应的练习（填词、选择题、句型转换等）或创设各种真实的情境，来帮助学生运用所学的知识。这样的设计旨在激活学生的思维，调动其学习积极性，提高课堂效率。
Teachingaims:
Afterlearningthisperiod,studentswillbeableto
understandhowthev-edorav-ingcanbeusedasadjective;
understandhowthev-edorav-ingcanbeusedasadverb;
summarizetherulesinwhichav-edorav-ingisused;
learntousev-edorv-ingincorrectwayaccordingtodifferentcontexts.
Teachingprocedures:
Step1Leadin
Guidestudentstoreadthefollowingpassageandhelpthemtoanalyzethefunctionofthev-ingusedinthepassage.(PPT4)
Carsaretheleading()causesofairpollutionintheworldtoday.
Realizing()howserioustheproblemhasbecome,thegovernmenthasbeenencouragingpeopletowalk,cycleormakebetteruseoftheundergroundsystem.
Answers:定语adj.状语adv.

[Explanation]
教师可以根据教学内容灵活运用教材中的练习。如，将57页上练习A的篇章进行适当改写后，作为本课的导入，旨在帮助学生通过语篇来感悟现在分词做定语和状语的功能，为后面的教学做好铺垫。

Step2GrammarPoints
Partoneav-edorav-inglikeanadjective
Helpthestudentsunderstandhowtheycanuseav-inglikeanadjectivebyanalysingthesentencesgivenandthendrawaconclusionbythemselves.(PPT5)
☆Shesatbesidethewindow,watchingthefallingleavesfloatingintheair.
☆Itwasanexcitingmatch.
Conclusion:itusuallyexpressesanactionthatisgoingon,orwhatsomethingislike.
[Explanation]
向学生呈现一些典型例句，让他们通过朗读来体会现在分词作形容词的用法。
Helpstudentsunderstandthedifferencesbetweenv-edandv-ingwhenusedlikeadjective.Whiledoingthis,studentsaresupposedtoreadthefollowingsentencesandtrytoanalyzewhenv-edcanbeused.(PPT6)
☆Thepolicefoundthestolencar.
☆Therewasathicklayeroffallenleavesontheground.
☆Manyexcitedpeoplewantedtotravelontheunderground.
Answers:expresspassivemeaning,refertoafinishedaction,tellhowwefeelaboutsth.
[Explanation]通过对比，帮助学生分析现在分词与过去分词作形容词时的差别。
2.Helpstudentsusev-edorv-ingasadjectiveinrealcontext.(PPT7)
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