2019-2020年八年級(jí)英語(yǔ)下冊(cè) Unit4 Lesson25教案 冀教版Lesson25 Lets Do an Experiment!?Step1：復(fù)習(xí)鞏固、激情導(dǎo)入復(fù)習(xí)：提問(wèn)unit3重點(diǎn)詞組和句型導(dǎo)入：Do you like to do experiment? What experiment have you done?Step2：出示目標(biāo)、明確任務(wù)1.牢記本課黑體詞匯：science/experiment/fill/prove/scientific/method等；2.能分角色表演對(duì)話；3.背誦重點(diǎn)句子1-5，并靈活運(yùn)用相關(guān)知識(shí)點(diǎn)。?Step3：自主學(xué)習(xí)、合作探究任務(wù)一：限時(shí)5分鐘，熟讀所有詞匯，牢記黑體詞匯任務(wù)二：熟讀對(duì)話，把握其意，畫(huà)出不理解處，同桌之間交流任務(wù)三：背誦重點(diǎn)句子，并自學(xué)知識(shí)點(diǎn)，畫(huà)出不理解處，同桌之間交流1.I fill a jar with water.2.I turn the jar upside down.3.Im sure the floor wont get wet.4.We can prove whos right.5.Well do the experiment and observe what will happen.?Step4：師生互動(dòng)、展示提升互動(dòng)一：?jiǎn)卧~記憶比賽互動(dòng)二：對(duì)話熟讀接力賽互動(dòng)三：知識(shí)點(diǎn)展示大比拼知識(shí)點(diǎn)一：I fill a jar with water.fillwith意為“ 用裝滿 ”be filled with=be full of意為 “充滿”fill in 意為“ 填上；填充”Eg: On hearing the news, her eyes are filled with tears.They filled the hole with water.Fill in the blanks.知識(shí)點(diǎn)二： I turn the jar upside down.Turnupside down意為“把翻轉(zhuǎn)/倒過(guò)來(lái)”upside down 意為“正面朝下”right side up意為“正面朝上”Eg: That picture is upside down.You hold the book upside down.知識(shí)點(diǎn)三：Im sure the floor wont get wet.be sure （that）從句，意為“肯定，確定”主句的主語(yǔ)必須是人否定形式是be not sure+疑問(wèn)詞引導(dǎo)的從句。Eg: Tom is sure that he will win the game.Tom is not sure whether he can win the game.Im not sure when hell e here.知識(shí)點(diǎn)四：We can prove whos right.prove是及物動(dòng)詞，意為“證明，證實(shí)”常用于以下結(jié)構(gòu)：prove sth.（to sb.）；prove（to sb.）that；prove（to be）+adj/n.Eg： The fact has proved the mans honesty to us all.=The fact has proved to us all that the man is honest.=The fact has proved the man （to be） honest.prove也可以作不及物動(dòng)詞，意為吧“證明表明（自己）是”后跟形容詞或名詞。Eg： My theory will prove right some day.During the trip,he proved a man with a strong will.知識(shí)點(diǎn)五： Well do the experiment and observe what will happen.（1）observe是動(dòng)詞，意為 “觀察”observe sb. do sth.observe sb.doing sth.用法同see/watch/hear等Eg: I observed her dance.When I passed by the grass,I observed him walking.（2）happen vi 意為“發(fā)生”【固定短語(yǔ)】sth happens to sb（無(wú)被動(dòng)語(yǔ)態(tài)）Happen to do sthEg: What has happened to you？I happened to meet an old friend yesterday.?Step5：鞏固練習(xí)、檢測(cè)驗(yàn)收教學(xué)反思：