地质中学初中英语肖弦课件教学设计新目标英语九年级Unit1Unit1GrammarFocusClassTypeGrammarObjectives1.Tolearnthestructure“verb+bywithgerund”.2.Tobetterunderstandandexpressthestructurewellinpractice.Keystructure1.HowdoyoulearnEnglish?—IlearnEnglishbystudyingwithagroup.2.DoyoulearnEnglishbyreadingaloud?—Yes,Ido.3.HowcanIreadfaster?—Youcanreadfasterbyreadingwordgroups.4.HowcanIimprovemypronunciation?—Onewayisbylisteningtothetapes.DifficultiesHowtowelldescribethesentencestructures“verb+bywithgerund”inpractice.Vocabularyrepeat,note,physical,chemistry,memorizetakenotes,penpalPeriod1ProcedureLead-inReadsomesentenceswith“by…”underlined.Step1Explain“by+动名词”,andgivesomeexamples.Step2Answersomequestionsusingtheform“by…”.Step3Exercises.TranslatesentencesintoEnglish.Step4Explaintheusesof“by”,andgivesomeexamplesaccordingly.Step5Givecomparisonsabout“by,in,with”.Step6Moreexercises.1.EnglishandChinesetranslations.2.Completesentenceswithphrasesof“by”.介词by的用法观察GrammarFocus中by+V-ing的部分HowdoyoulearnEnglish?Ilearnbystudyingwithagroup.DoyoulearnEnglishbyreadingaloud?Yes,Ido.Ithelpsmypronunciation.HowcanIreadfaster?Youcanreadfasterbyreadingwordgroups.HowcanIimprovemypronunciation?Onewayisbylisteningtotapes.注意：“介词by+动名词”常常表示手段、方式或方法，可以用来回答how引导的特殊疑问句。如：---HowdoyoulearnEnglish?---IlearnEnglishbywatchingEnglishmovies.HowdoyoupracticespeakingEnglish?Byhavingconversationswithfriends.等讲解一些相关练习全面总结by的用法by是介词,表示“通过……方法或途径”的意思,译成“靠,通过”,后面可加名词、名词短语或动名词。可用来回答how引导的特殊疑问句。1)Thehousewasdestroyedbyfire.房屋被火烧毁了。2)travelbyair/land/sea航空（陆路，航海）旅行3)gobytrain/boat/bus乘火车（船，公共汽车）4)shakesb.bythehand和某人握手5)IstudyEnglishbywatchingEnglishmovies.我通过看英文电影学英语。另外,by作为介词的意义有很多。例如:1）在……旁边，靠近Thereisapowerstationbytheriver.河边有一个电厂。2）沿着，经由toenterbythedoor由门进去3）由于bymistake由于差错；错误地4）被，由somearticleswrittenbyLuXun一些由鲁迅写的文章5）表示相（乘）除（以计算面积）aroom5mby4m一个长五米宽四米的房间6）逐一；连续onebyone一个接一个近义词辨析：讲解相关练习。
