Unit3[下學期]section A PPT課件

1、what were you doing when the ufo arrived ?go for it!unit 3a:what did you do at 9 oclock last morning ?tomb:i went to school.a:what was tom doing at the time ?b: he was having breakfast.tom was having breakfast when i went to school.9:00a:what did you do last night?b:i did my homework.a: what was she

2、 doing last night?b: she was playing the piano.she was playing the piano when i did my homework.what was she doing at 6 oclock?she was playing football.what was he doing when they swam in the water ?he was doing homework.he was swimming.what was he doing at 8 oclock?what were they doing at 10:30?the

3、y were running.talk about the pictureswhat were they doing yesterday afternoon?123 ask and answer in pairs where were you at 6:00 yesterday evening? what were you doing ? 1 in a river swimming 2 in a park playing basketball 3 in a shop doing some shopping 4 at home cooking 5 at home watching tv 6 at

4、 home doing my homework unit 3 what were you doing when the ufo arrived?1._i was in the bathroom.i was getting out of the shower.i was sleeping late.i was borrowing some books.i was cooking dinner.i was cutting my hair.i was sitting on the chair.2._i was in my bedroom.3._i was in front of the librar

5、y.4._i was in the kitchen.5._i was in my barber shop.6._i was in the barbers chair.1a. match the statements with the people in the pictures.dbacef1blisten and circle the correct responses.standing in front of the library / studying in the libraryb. cleaning my room /sleeping latec. making a smoothie

6、 /cooking dinnerd. getting out of the shower / talking on the phonee. eating lunch / cutting hairexercises1.昨天早上昨天早上9點鐘你在干什么點鐘你在干什么?what were you doing at 9 oclock yesterday morning?2.不明飛行物起飛時不明飛行物起飛時,小明正在騎自行車小明正在騎自行車.xiaoming was riding his bike when the ufo took off.3.那時那時,他們正在做家庭作業(yè)他們正在做家庭作業(yè).they

7、were doing their homework at that time.4.今早給你打電話的時候你正在干什么？今早給你打電話的時候你正在干什么？what were you doing when i called you up this morning?5.當他正睡覺的時候他夢見了當他正睡覺的時候他夢見了ufo.while he was sleeping ,she dreamed about ufo.summary:summary:過去進行時的構(gòu)成：過去進行時的構(gòu)成：1. 1.概念概念: :表示過去某個時刻或過去一段時間表示過去某個時刻或過去一段時間正在進行的動作正在進行的動作. .2.2

8、.公式公式: :主語主語+was/were+doing sth +was/were+doing sth +時間時間狀語狀語3.3.指示詞指示詞:then, at that time, once, :then, at that time, once, 等連用等連用, ,或者用另一動作來表示過去的時間或者用另一動作來表示過去的時間. .make a surveya: what a: what were were you doyou doing ing at nine oclock last sunday morning?at nine oclock last sunday morning?b: i

9、 was sleepb: i was sleepinging. how about you?. how about you?a: i a: i waswas do doinging my homework. my homework. you student 1 student 29:00 am11:30am1:00 pm4:00 pm6:00 pm9:00 pm有關(guān)外星人有關(guān)外星人外星人和地外文明始終是人們最有興味的話題。那些一直致力于尋找外太空外星人和地外文明始終是人們最有興味的話題。那些一直致力于尋找外太空智慧生命的科學家相信，外星人確實存在，只是人類一直無法找到他們?？茖W智慧生命的科學家

10、相信，外星人確實存在，只是人類一直無法找到他們?？茖W家認為，由于天文物理技術(shù)等因素的限制，靠星際旅行來尋找地外生命是不大家認為，由于天文物理技術(shù)等因素的限制，靠星際旅行來尋找地外生命是不大現(xiàn)實的，與外星人交流的唯一途徑可能只有無線電通訊。現(xiàn)實的，與外星人交流的唯一途徑可能只有無線電通訊。 2525年內(nèi)找到外星生命年內(nèi)找到外星生命 最近，正在澳洲出席外星生物研究會議的美國最近，正在澳洲出席外星生物研究會議的美國“外星生物情報研究所外星生物情報研究所”（set1set1）的高級太空科學家蕭斯塔克透露，由于新科技的幫助，科學家可望在）的高級太空科學家蕭斯塔克透露，由于新科技的幫助，科學家可望在未來未

11、來2525年內(nèi)，在外太空找出其中一個星體上的生物。年內(nèi)，在外太空找出其中一個星體上的生物。 該研究所自該研究所自19841984年成立以來，就開始監(jiān)察無線電訊號，希望能探測到來自外年成立以來，就開始監(jiān)察無線電訊號，希望能探測到來自外太空發(fā)出的訊號。他們開展了著名的太空發(fā)出的訊號。他們開展了著名的“鳳凰計劃鳳凰計劃”。到。到19991999年中期，鳳凰計劃年中期，鳳凰計劃已觀測了大約已觀測了大約500500顆星體，但始終沒有地外文明信息被監(jiān)測到。蕭斯塔克說，顆星體，但始終沒有地外文明信息被監(jiān)測到。蕭斯塔克說，“我們確實經(jīng)常監(jiān)測到信號，可經(jīng)查實都是人類而不是外星人發(fā)出的，大部分我們確實經(jīng)常監(jiān)測到信

12、號，可經(jīng)查實都是人類而不是外星人發(fā)出的，大部分是美國電話電報公司的。是美國電話電報公司的?！笔捤顾送嘎?，研究所在贊助下將斥資蕭斯塔克透露，研究所在贊助下將斥資26002600萬美元，萬美元，研制一組射電望遠鏡陣。這組望遠鏡叫做研制一組射電望遠鏡陣。這組望遠鏡叫做“艾倫望遠鏡艾倫望遠鏡”。艾倫望遠鏡陣將覆。艾倫望遠鏡陣將覆蓋蓋10001000到到10000mhz10000mhz的頻率，預(yù)備在的頻率，預(yù)備在20052005年投入使用。該望遠鏡陣將建于舊金山年投入使用。該望遠鏡陣將建于舊金山市東北的哈特克里克氣象臺，可以全年不停地偵察附近市東北的哈特克里克氣象臺，可以全年不停地偵察附近1010萬甚至萬甚至100100萬顆星體。萬顆星體