2017-2018学年秋冀教版初中英语九年级英语上Unit5教学案

2017-2018学年秋冀教版初中英语

九年级英语上

Unit5 LookintoScience

1.掌握定语从句的用法。

2.听懂有关实验或介绍科学方面的对话或短文。

3.阅读并描述实验操作步骤并撰写有关科学或小实验方面的短文。

4.运用所学的知识表达对科学的观点。

培养学生的口语交际能力,能够流利地用英语谈论科学实验。

教学突破:突出口语表达,谈论科学实验。能听懂并读懂、描述实验操作步骤,并撰写有关科学或小实验方面的短文。

注意方法与价值观的培养:定语从句采用归纳总结的方法,使知识系统化,口语练习采用Pairwork和Groupwork相结合的方式,谈论伟人及其生活。让学生热爱科学,勇于实践。

第一课时:Lesson25

第二课时:Lesson26

第三课时:Lesson27

第四课时:Lesson28

第五课时:Lesson29

第六课时:Lesson30

名词:experiment,jar,upside,method,raincoat,force,pressure,holder,lighter,

9.考查except,exceptfor,besides,but的区别。

WaterJetScienceExperiment

Scienceexperimentsorprojectsforthekidsaretheperfectmeanstomakechildrenunderstandthefundament alsbehindthethingsthathappenaroundthem.Thesescienceexperimentsarenotonlyeasytoperformbutarea lsoprettyfascinatingforthekids.TheWaterJetScienceExperimentisoneofsuchexperimentswhichispret typopularamongkidsandissafeandsimpletocarryout.

WaterJetScienceProject:

ToperformtheWaterJetScienceExperimentallyouwillneedisanemptybottleofplastic,aneedle,abowl,wa ter,ascotchtapeandatable.

Firstofalltaketheemptyplasticbottleandwiththehelpofaneedlemakeaholeinit.Anadultsupervisionis

neededwhileusingneedles.Thisholeshouldbethreetofourinchesawayfromthebottle’sbase.Now20cmabo vethisholemakeasecondhole.

Takeanadhesivetapeandcovertheseholeswithit.Oncetheholesarecoveredwiththetapeyoucanfillthispl asticbottlewithwaterandthenplaceitonatable.Quicklyremoveboththetapesfromthisbottleandsoonyou willseethejetofwatercomingoutfromboththeseholes.Youwillseethatthejetofwatercomingoutfromthel owerpartofthebottleisstrongerthanthejetofwatercomingoutfromtheupperpartofthebottle.

Thereasonbehindthisisthattheweightofwaterinthebottleputspressureonthelowerregionasaresultofw hichthewaterrushesoutwithmorepressure.Whereasthewaterjetcomingoutfromtheupperpartofthebottle isnotsostrongbecauseoflessweightandpressureofwater.

第一课时Lesson25Let’sDoanExperiment!

1.记忆单词

experiment,jar,upside,pour,correct,scientific,method,raincoat,force,pressure,conclude;短语turn…upsidedown,pourout,scientificmethod,take…off。

2.掌握重点句

型:①ThenIturnthejarupsidedownandtakemyhandoffthecardboard.②That’scalledthescientificmetho

d.

3.能够运用所学知识介绍自己做实验的过程。

4.能够确定定语从句的先行词和关系词。

1.学会并能正确使用单词及短

语:experiment,jar,upside,pour,correct,scientific,method,raincoat,force,pressure,conclude; turn…upsidedown,pourout,scientificmethod,take…off。

2.能够运用下列句

型:①ThenIturnthejarupsidedownandtakemyhandoffthecardboard.②That’scalledthescientificmetho d.③IamsosureofmytheorythatBriancandotheexperimentoveryourheadandIknowyouwon’tgetwet.

1.能够正确应用本课的重点词汇

experiment,jar,upside,pour,correct,scientific,method,raincoat,force,pressure,conclude;掌握短语turn…upsidedown,pourout,scientificmethod,take…off。

2.能够运用所学知识介绍自己做实验的过程。

3.能够确定定语从句的先行词和关系词。

思路一:本课的教学内容是冀教版九年级英语第一单元的第25课,以“让我们一起做一个实验”为题,本单元的中心话题是“研究科学”,对于科学研究实验步骤的理解,因此,本节要以直观的方式来导入新课。思路二:本课的教学内容是冀教版九年级英语第五单元的第25课,以“让我们一起做一个实验”为题,以讨论“ThinkAboutIt”进行师生对话,得出实验步骤,通过小组合作探究,找出本课的重点句子和短语,共同解决疑难。

教师在课前设计教学PPT,准备录音机和磁带,多媒体等,广口瓶,纸板和水。

StepⅠ.Leadin

Leadingin 【情景1】

Theteacherbringsajar,acardboardandwatertotheclass.Showthemtothestudentsandaskwhatexperiments wecandowiththem.Letthestudentsshowthemandexplainthereasonstothestudents. Letthestudentsworkingroupsanddiscusstheexperiments.

[设计意图]教师拿出与课文中的实验相关的教具,导入新课,让学生分组研究实验流程,为课文的学习奠定基础。

Leadingin 【情景2】

T:Goodmorning/afternoon,everyone.Todaywearestartinganewunit.WhocantellmethetitleofUnit5? S1:Ican.It’s “LookintoScience”.

T:Verygood.Whatisscience?

S2:Scienceisanareaofstudy.

S3:Scienceissomethingwelearnaboutinschool.

T:Inwhichsubjectdoyouoftendoexperiments?

S4:Science.

T:Doyoulikeexperiments?

S5:Yes.

T:Experimentsarepartofsomethingcalledthescientificmethod.Thescientificmethed: Askquestions→dobackgroundresearch→constructatheory→testthetheorywithanexperiment→analyzeresults→drawaconclusion→reportresults(Wasyourtheorycorrect?)

OK.Todaywe’lllearnanexperiment.

[设计意图]通过师生互动导入本课话题,教师向学生介绍实验的步骤,为本课的学习做好铺垫。StepⅡ.Presentation

TheteachershowsthenewwordsonPPT.Askstudentstotrytoreadthesewords.Thestudentsfollowtheteacher

threetimes.Thengivethestudentsfiveminutestorememberthewords.Letstudentsspellandreadthemoneby one.

[设计意图]教师以PPT的形式呈现本课中出现的生词,领着学生们朗读并记忆,为下面的课文学习做好充分准备。

StepⅢ.Reading

1.Readthetextaloud.

T:Boysandgirls,it’sourreadingtime.Pleasereadafterthevideoandyoushouldpaymoreattentiontoyour pronunciation.

[设计意图]让学生大声朗读课文,对课文的意思有个大致的了解,对于培养学生的正确发音以及培养学生的语感都有重要作用。

2.Carefulreading.

(1)Givethestudentsfiveminutestoreadthetextbythemselves. Readthelessonandanswerthequestions.

①WheredoesDannythinktheyshoulddotheexperiment?

②Whatkeepsthewaterinthejar?

③IsJennysureofhertheory?Howdoyouknow?

④WhydoesDannyputonhisraincoat?

⑤WhatdoesDannyconclude?

【Keys】①Dannythinksthattheyshoulddotheexperimentoutside.

②Theforceoftheair./Theairpressure.

③Yes,sheis.SheissosureofhertheorythatBriancandotheexperimentoverDann …… 此处隐藏：13932字，全部文档内容请下载后查看。喜欢就下载吧 ……