Unit4theinventionofthemicrowaveoven市公開課一等獎省賽課微課金獎P

Unit4ReadingandWriting2

PassageBTheInventionoftheMicrowaveOven1/15Leadinamicrowaveoven2/15PercySpencer3/15FastreadingWhenwasthemicrowaveoveninvented?In1946.4/15CarefulreadingSumuptheimportanteventsintheinventionofthemicrowaveoven,usingthecluesontheleft.chocolatebarpopcornkernelseggmetalboxCluesEventsItstartedtomeltwhenitgottooclosetoanelectronictube.Popcornwaspoppingoutoverthelabfloorwhenplacedneartheelecctronictube.Itstartedtoshakeandintheendexplodedandsplashedalloverspencer'scolleague'sface.Themicrowaveovenwasinvented.5/15CarefulreadingReadthepassageagainandchoosethebestanswer.1.Spencer'schocolatebarstartedtomeltwhenitwas_____________.a.nearanelectronicovenb.farawayfromanelectronictubec.nearanelectronictube2.WhateventconfirmedSpencerthatmicrowaveenergycouldcookfoodquickly?a.Theexplodingegg.b.Thepopcornkernels.c.Thecolleague.6/153.WhatdidSpencerfeedintothemmetalboxbesidesfood?a.Highpressure.b.Anelectromagneticfield.c.Microwavepower.4.Whathappenedwhenfoodwasplacedintheboxandmicrowaveenergywasfedin?a.Thetemperatureofthefoodrose.b.Thetemperatureofthefoodremainedthesame.c.Thetemperatureofthefooddropped.7/15Newwordsandexpressions1.genergate2.high-frequency3.melt4.engineer5.curious6.rise(rose,risen)7.explode(explosion)8.light(lighted/lit,lighted/lit)9.scientific10.concusion11.exposure12.thus13.practical14.domestic15.feed(fed,fed)8/15Newwordsandexpressions1.havenoidea2.getcloseto3.popout4.bejoinedby....5.lightup6.workon7.largequantitiesof8.comeonthemarket1.不知道2.靠近3.噴出4.和......一道5.閃亮，發(fā)光6.從事7.大量8.面市，上市9/151.Intrigued,Spencerplacedpopcornkernelsneartheelectronictube,soonpopcornwaspoppingoutoverthelabfloor.好奇之下，思賓塞將爆米花谷粒放在電子管附近，很快爆米花蹦得試驗室滿地都是。A.intrigedadj."好奇，著迷"

eg.Theboywasintrigedbytheleegendofdragons.男孩對龍傳說著迷了。B.popv."發(fā)出呯呯聲"eg.Theballoonpoppedwhenthecatputitspawonit.貓把爪子一放上去，那氣球就呯地爆了。10/152.Therapidtemperaturerisewithintheeggwascausingtremendouspressure.雞蛋里溫度快速升高，造成巨大壓力。3.Spencerdesignedametalboxwithaholeintowhichhefedmicrowavepower.A.feed"提供（原料）"。eg.Thefireisdying.Willyoufeeditwithsomefood?

火快滅了，你能給里面添加一點柴嗎？B.在本句中，which引導一個定語從句修飾hole,介詞into與fed搭配，該定語從句還原成正常語序后是hefedmicrowavepowerintoahole.斯賓塞設計了一個金屬盒子，在上面開了個洞，他從這個洞里將微波能導入盒子。11/154.EngineerswenttoworkonSpencer'shotnewidea,developingandrefiningitforpracticaluse.工程師們開始忙于斯賓塞這個新主意，對之進行開發(fā)和完善，使之含有實際用途。A.workonsth."努力改進"。

eg.Youshouldworkonyourskillsinpublicspeaking.

你應該努力提升你公開演講技能。B.practical"實際，實用"。

eg.That'sacleverinvention,butnotverypractical.

那創(chuàng)造很精妙不過不太實用。C.在本句中，developingandrefiningitforpracticaluse是伴隨狀語，it指代Spencer'shotnewidea.

12/15Exercisesforconslidation13/151