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1、八年级上册英语Unit 3 What were you doing when the UFO arrived?课题: Unit 3 What were you doing when the UFO arrived?课时:第一课时(P17-P18)预习导航:I.自学单词(UFOwhile),并重点记忆以下单词.1.浴室 2.卧室 3.厨房 4.出去 5.剪/切 6.买(过去式) 7.着陆 8.得到（过去式） 9.衬衫 10.当时候 11.起飞 12.出去 II.尝试说出下列短语或词组：重点词组: 1.在浴室/卧室/厨房/理发店/理发师的椅子上 2.站在图书馆的前面 3.在图书馆里学习 4.打扫我
2、的房间5.睡过头 6.制作香蕉奶昔7.做晚饭 8.从浴室里出来/从不明飞行物里出来9.在电话里交谈 10.吃午饭11.参观飞行博物馆 12.买纪念品13.在中央街道着陆 14.进入一家商店15.看见外星人出来了 16.报警17.打电话给电视台 重点句子:1.-当不明飞行物到来时你正在做什么？-我正站在图书馆的前面。2.-当不明飞行物到来时他正在做什么？-当它到来时他正在熟睡。3.那个女孩看到外星人出来时，她在购物。4.外星人正在买纪念品时，女孩打电话报警了。5.外星人在参观博物馆时，男孩打电话给电视台了。6.当飞碟起飞的时候，女孩正在做什么？7.当飞碟着陆的时候，男孩正沿着街道散步。8.男孩正
3、在街道散步时，飞碟着陆了。9.当外星人出来的时候，那女孩正在购物。10.女孩正在购物时，外星人出来了。III.语法聚焦: 过去进行时过去进行时：表示在过去的某一时刻内正在进行的动作。构成： was/were + 现在分词 时态标志： at the time（此时此刻）, this time yesterday（昨天的此时） , at 6 oclock yesterday（昨天六点钟） ,just then（正在那时）, when, while 等表示具体又明确的时间。 例如： Tom was playing soccer at 7 yesterday . My parents werent w
4、atching TV at the time. Were you visiting your aunt this time last Sunday? 想一想:你还有那些不明白的地方? 请你写下来吧. IV.随堂小练习:用所给词的适当形式填空.1.Look! Xiao Ming (fly) a kite in the sky.2.On Sundays, I often (sleep late )3.Mrs Li is our, but she (be) ten minutes ago.4.My best friend (clean) the car just then.5.When mother
5、 came in, I (do) my homework.6. While Tom _(cut) hair, Mary played CDs.7.He was riding a bike _(when/ while) he saw his cousin.8当老师进来的时候，我们正在讨论问题。9.当我们正在讨论问题时，老师进来了。阅读短文,完成问题.The sun is always shining. But it can only shine on one side of the earth at one time. When the sun is shining on one side of
6、 the earth, it is night on the other side. At night, you can see the stars. The stars are in the sky all day. But the light from the sun is so bright that you cant see them. When night comes, there is no light, and the stars are bright enough to see. The stars look very small. But some of them are e
7、ven bigger than the sun. They look small because they are so far away from you. Big things look much smaller when they are far away. The sun is closer(近)to the earth than other stars, so it looks bigger. ( ) 1When it is night, the sun _ . A. doesnt shine B. shines for a short time C. disappears(消失)
8、D. shines on the other side of the earth( ) 2We cant see the stars in the sky at daytime(白天)because _ . A. there are no stars there B. the stars are much smaller than the sun C. the bright light from the sun makes them not seen(被看见) D. the stars come out only at night( ) 3The stars look small becaus
9、e _ . A. they are far away B. they are small C. they have no light D. they are in the sky( ) 4Small things may look _ when they are close. A. bigger B. small C. near D. far away( ) 5The sun looks bigger than other stars because _ . A. its bigger B. its far away in the sky C. it gives much bright light D. its closer to the earth than other stars2用心 爱心 专心
