冀教版英语八年级下unit4 lesson25课件

Lesson25Let sDoanExperiment Learningaims Aimofknowledge 知识目标 A Vocabulary 词汇 scienceexperimentproveobservecardboardfill withcover with turnupsidedowninsideoutsideB SentencePatterns 句子 1 I msurethefloorwon tgetwet 2 I mnotsure Ithinkthefloorwillgetwet 3 Maybeyoushoulddothisexperimentoutside Aimofability 能力目标 Howtototalkaboutcertaintyanduncertainty Aimofemotion 情感目标 Arousethestudents interestindoingscienceexperiment science科学experiment实验 试验theory理论 学说fill装满jar广口瓶 罐子upside上部 上边prove证实 证明observe观察 监视scientific科学的method方法 办法 Learnthewordsandexpressions Fillintheblankswiththerightwordsandthefirstletterisgiven 1 Let sdoane 2 BrianhasonetandDannyhasanother 3 Theycanpwho sright 4 Iturnthejarudown 5 Pleaseocarefully xperiment heory rove pside bserve 1 WhatwillBraindo Hewilldoanexperiment 1 WhydoesDannysaytheyshoulddothisexperimentoutside BecauseDannythinksthefloorwillgetwet 2 What sBrain stheory Brianissurethefloorwon tgetwet QUESTIONS Finishofftheseexercises 1 用 把 装满 2 用 把 盖住 3 我 不 确信 4 正面朝上 5 把 翻转 6 getwet 7 doanexperiment 8 apieceofcardboard 9 inside 反义词 10 theory 复数 11 careful 副词 11 science 形容词 fill with cover with Iam not sure rightsideup turn upsidedown turn over 变湿 做一个实验 一块硬纸板 outside theories carefully scientific Let sdoit Writedownthestepsofdoingtheexperiment1 Fillajarwithwater 2 Coverthetopwithapieceofcardboard 3 Turnthejarupsidedown Whatwillhappen Youmaysay I msure I mnotsure Thefloorwillgetwet Ithink Thefloorwon tgetwetMaybe Thecardboardcankeepthewaterinthejar 一 Ifillajarwithwater 我用水把瓶子装满 fill with 用 装满 主语是人 befullof befilledwith 主语是物或容器 同义句转换 1 Theroomsarefullofthestudentsnow Therooms thestudentsnow 2 Mypocketisfilledwiththemoney Mypocket themoney 选择 5 Canyou thebox books Afill withBfull withCfilled withDfull in6 Thechild allthebowls water Afill withBfills withCisfull withDisfilled with arefilledwith isfullof A B 学以致用 二 Iturnthejarupsidedown 我把广口瓶倒置 upsidedown的意思是 向下翻转过来 Youholdthebookupsidedown 你把书拿倒了 rightsideup是 正面朝上 的意思 Thatpictureisupsidedown 学以致用 三 I msurethefloorwon tgetwet 我确信地板不会湿 besure表示肯定 有把握 而benotsure表示不确定besure benotsure后可接句子 还可接代词 名词 动名词或不定式 常见用法 besureofsb doingsth besuretodosth完成下列各题 1 我确信她会来 thatshewillcomehere 2 他没有把握通过考试 topasttheexam 3 I msure Jimplaysbasketballwell AofBtoCthatDwith I msure He snotsure C PRACTISE He thestockings christmaspresents 用 装满 Pleasepassmeabottle water A fullwithB filledofC fillingwithD fullof Mymotherisholdingthebook 倒着 我弟弟用一块玻璃盖住了那个杯子 Mybrother theglass apieceofglass 我肯定他会来 hewillcome filled with D upsidedown covered with Iamsure Newwords sciencescientificexperimentfillprovemethodtheoryjarobservePhrases befilledwith befullofcover with turn upsidedownSentencePatterns sb besure that从句 sb benotsure 疑问词引导的从句 Howdowedotheexperiment First ajar water Then thetop apieceofcardboard Finally thejar with with turn fill cover upsidedown Readthetextagainandagai