初中九年级英语课件Lesson0 Science Affects Us

Lesson30ScienceAffectsUs白团中学李红芳教学目标1．记忆单词affect,

suggest,development,

mobilephone,discovery;短语turn…over,

pushup,pushdown,

inplace.2．掌握重点句型:（1）Isuggestyoutryit,

too!（2）Coverthejarwiththecardboardandturnthejarover.（3）Theairpressurepushinguponthecardboardishigherthanthatofthewaterpushingdownfrominsidethejar.（4）Thehigherairpressureoutsidethejarholdsthecardboardinplace.（5）Scientificdiscoveriesaremakingourlivesbetterandbetter.3．能够运用所学知识介绍自己所做过的科学实验.4．理解课文意思并能回答课后的问题.教学重难点1．能够正确应用本课的重点词汇affect,suggest,

development,

mobilephone,discovery;掌握短语turn…over,

pushup,pushdown,

inplace.2．能够运用所学知识用英语介绍自己所做过的科学实验.Doyoulikedoingscienceexperiments?Whyorwhynot?1.Haveyoueverdoneanyinterestingexperiments?Canyoudescribeoneofthem?2.Whatwouldlifebelikewithoutcomputersormobilephones?Thinkaboutitdiscoveryaffectsuggestmobilephonedevelopmentn.

发现v.影响v.建议n.手机n.发展NewwordsMain

phrases:·be

like·turn…over·push

up·push

down·in

placeRead

the

text

and

find

out

main

phrases

and

sentences.JennydidanexperimentinscienceclasswithDannyandBrian.Howdidtheydoit?Let’s

listentothetapeandcompletethesteps.First,getajarfullof_______andapieceof_________.Second,________thejarwiththecardboardand________thejarover.Finally,______

yourhandoff.Canyouguesswhathappens?ReadWangMei’sletterandfillintheblanks.Scienceaffectspeople’s________lives.Withoutthescientificdevelopmentsofrecentyears,ourliveswouldbeverydifferent.Canyouimaginelifewithoutcomputersor_____________?everydaymobilephonesScientific__________aremakingourlivesbetterandbetter.DNAisreallyoneofthemostamazingthingsontheearth.Manypeoplethinkitwill_______theworld.discoverieschange●Whatwouldlifebelikewithoutcomputersormobilephones?1.Isuggestyoutryit,too!

我建议你也试一试！

suggest动词,意思是“建议;提出”。后可接名词和v.-ing,也可接that宾语从句,that从句用should+动词原形,should可以省略。e.g.Dannysuggestedgoingtogetherinonecar.

丹尼建议大家同坐一辆车去。

Shesuggestedthatwe(should)takeawalk.

她提议我们出去散步。2.Coverthejarwiththecardboardand

turnthejarover.

用硬纸板盖住广口瓶,再把它倒过来。

turnover的意思是“把……翻过来”。

e.g.Thesoilmustbeturnedoverbeforeplanting.

播种前必须先翻土。3.Theairpressurepushinguponthecardboardishigherthanthatofthewaterpushingdownfrominsidethejar.

托着纸片的向上的空气压力要大于广口瓶内水的向下的压力。

pushup意思是“向上推；提高”。

e.g.Willyouhelpmetopushupthewindow?

你能帮我把窗户推上去吗？4.Thehigherairpressureoutsidethejarholdsthecardboardinplace.

广口瓶外面的空气压力大,把纸片托在原位置。

inplace意思是“原位;在恰当的位置”。

e.g.Iliketohaveeverythinginplace.

我喜欢把一切东西都放在适当的位置。Fillintheblankswiththecorrectformsofthewordsinthebox.discoveraffectsuggestplacedevelop1.Jenny_________________theyuseastrongerpieceofcardboardfortheexperiment.2.Theairpressure_____________theresultoftheexperiment.suggests/suggestedaffects/affected3.Theexperimentledtoawonderful_________.4.Whatareyourplansforthe____________ofyourcompany?5.Theyusedarocktoholdthemapin_____.discoverydevelopmentplaceHerearesomeinventions.Howdotheyaffectoureverydaylives?Talkaboutthemwithyourpartner.TVcameraradiocomputertelephonelightbulbclockwashingmachinecompasstelescopeX-rayeyeglassesWithTVWithoutTVIwatchTVtogetinformation.________________________________________________Iwouldspendmoretimetalkingwithmyfamily.________________________________FreeTalkHowdotheseinventionsaffectoureverydaylives?Whatlifewouldbelikewithouttheseinventions?Researchandcollectsomefun