八年级英语下册Module3JourneytospaceUnit2WehavenotfoundlifeonanyotherplanetsyetampUnit3课件新版外研版.ppt

课前自主预习课前自主预习课堂互动探究课堂互动探究课前自主预习课前自主预习单词单词闯关闯关1. 1. 环环境境( (n.n.) ______________) ______________2 2．太阳的；与太阳有关的．太阳的；与太阳有关的( (adj.adj.) ________ ) ________ 3 3．系．系统统，体系，体系( (n.n.) ________) ________4 4．群；．群；组组( (n.n.) ________) ________5 5．宇宙．宇宙( (n.n.) ______________ ) ______________ 6. 6. 光光线线；光亮；光亮( (n.n.) ________ ) ________ 7 7．可能的．可能的( (adj.adj.) ________ →() ________ →(反反义词义词) ____________ ) ____________ 8 8．．联联系；交流系；交流( (n.n.) ______________ →() ______________ →(v.v.) ________) ________9 9．没有一人；没有一个；一点儿也没有．没有一人；没有一个；一点儿也没有( (pron.pron.) _________) _________ →( →(反反义词义词) ________) ________10. 10. 那，那个那，那个pron. pron. _________→(_________→(对应词对应词) ________) ________ groupgroupuniverseuniverselightlightimpossibleimpossiblepossiblepossibleenvironmentenvironmentsolarsolarsystemsystemcommunicationcommunicationcommunicatecommunicatenonenoneallallUnit 2 We have not found life on any other planets yet. & Unit 3thatthatthisthis短短语语互互译译1. 1. 数以数以亿计亿计的的 ________________________________________________________________________　　　　　　　　　　2. 2. 绕绕着着…………转转 __________________________3 3．和．和…………交流交流 __________________________________________4. 4. 在地球上在地球上 __________________ __________________ 5 5．．solar system __________________ solar system __________________ 6. as good as___________________6. as good as___________________7 7．．take photos______________take photos______________8. none of8. none of……____________________________________________communicate withcommunicate with……on the earthon the earth太阳系太阳系和和……一样好一样好……中没有一个中没有一个照相照相hundreds of millions of to hundreds of millions of to ……go aroundgo around……Unit 2 We have not found life on any other planets yet. & Unit 3连连词词成成句句1.them1.them，，has, that, ofhas, that, of，，an, likean, like，，none of, environment, the none of, environment, the earth(earth(它们中没有一颗有像地球那样的环境。

它们中没有一颗有像地球那样的环境) )____________________________________________________________________________________________________________2 2．．life, on, there, millions of, the earth, for, has been, life, on, there, millions of, the earth, for, has been, years, hundreds of(years, hundreds of(地球上有生命已有数亿年了地球上有生命已有数亿年了) )________________________________________________________________________________________________________________________________________________________________________________________________________________________3 3．．spaceship, travelled, reach, other, far enough, stars, spaceship, travelled, reach, other, far enough, stars, to, however, no, has, in our Galaxy(to, however, no, has, in our Galaxy(然而，没有一艘宇宙飞船能飞然而，没有一艘宇宙飞船能飞得足够远以到达银河系的其他恒星。

得足够远以到达银河系的其他恒星) )________________________________________________________________________________________________________________________________________________________________________________________________________________________4 4．．impossible, large, it is, to, how, is, the universe, impossible, large, it is, to, how, is, the universe, imagine(imagine(根本无法想象宇宙有多大根本无法想象宇宙有多大) )____________________________________________________________________________________________________________5 5．．named, the, after, planet, Saturday, is, Saturn(named, the, after, planet, Saturday, is, Saturn(星期六是星期六是以土星的名字命名的。

以土星的名字命名的) )____________________________________________________________________________________________________________None of them has an environment like that of the earth.None of them has an environment like that of the earth.There has been life on the earth for hundreds of There has been life on the earth for hundreds of millions of years.millions of years.However, no spaceship has travelled far enough to However, no spaceship has travelled far enough to reach other stars in our Galaxy.reach other stars in our Galaxy.It is impossible to imagine how large the universe is.It is impossible to imagine how large the universe is.Unit 2 We have not found life on any other planets yet. & Unit 3Saturday is named after the planet Saturn.Saturday is named after the planet Saturn.课课文文初探初探根据根据课课文内容完成下列句子，每空一文内容完成下列句子，每空一词词。

1 1．．There has been life on the earth for ________ There has been life on the earth for ________ ________ ________ ________ years according to the ________ ________ ________ years according to the scientists. scientists. 2 2．．According to the passage, ________ planets go According to the passage, ________ planets go around the sun.around the sun.3 3．．We call the sun and its planets ________ ________ We call the sun and its planets ________ ________ ________________．．4 4．．The light of the other galaxies has to travel for The light of the other galaxies has to travel for ________ ________ to reach us.________ ________ to reach us.5 5．．Scientists have sent spaceships to the planet Scientists have sent spaceships to the planet Mars in order to ________ ________.Mars in order to ________ ________.eighteightmany yearsmany yearssystemsystemof millions ofof millions ofthe solarthe solarUnit 2 We have not found life on any other planets yet. & Unit 3hundredshundredstake photostake photos课堂互动探究课堂互动探究词汇点睛词汇点睛1 none1 none　　pron.pron. 没有一个；没有一人；一点儿也没有没有一个；没有一人；一点儿也没有 [ [观察观察] ] NoneNone of them has an environment like that of of them has an environment like that of the earth. the earth. 它们中没有一颗它们中没有一颗( (行星行星) )有像地球那样的环境。

有像地球那样的环境There's There's no oneno one in the classroom. in the classroom. 教室里没人教室里没人 Unit 2 We have not found life on any other planets yet. & Unit 3[ [辨析辨析] none ] none 与与no oneno onenonenone(1)(1)意为意为““没有一个没有一个”” 既可指既可指____________，又可指，又可指____________，可与，可与____________连用2)①none of(2)①none of与可数名词复数连用作主语时，谓语动词用单数或复与可数名词复数连用作主语时，谓语动词用单数或复数形式均可数形式均可None of the students comes/come from America.None of the students comes/come from America.②none of②none of与不可数名词连用作主语时，谓语动词用单数形式与不可数名词连用作主语时，谓语动词用单数形式。

3)(3)常用于回答常用于回答how many/how muchhow many/how much引导的疑问句引导的疑问句no no oneone(1)(1)意为意为““________________”” 只可指人，不可指物，只可指人，不可指物，________(________(能能/ /不能不能) )与与ofof连用2)(2)作主语时，谓语动词用单数形式作主语时，谓语动词用单数形式3)(3)只能回答以只能回答以whowho开头的疑问句开头的疑问句 Unit 2 We have not found life on any other planets yet. & Unit 3人人物物ofof没有人没有人不能不能——How many boys are there in the room?How many boys are there in the room? 房间里有多少个男孩？房间里有多少个男孩？——None. None. 一个也没有一个也没有——Who is in the room? Who is in the room? 谁在房间里？谁在房间里？——No one. No one. 没人。

没人Unit 2 We have not found life on any other planets yet. & Unit 3活学活用活学活用(1)(1)[2016[2016··齐齐哈尔齐齐哈尔] ] ——Who was hurt in the traffic Who was hurt in the traffic accident accident？？ ——　　　　　　　　. . A. None A. None　　　　　　 B. No one C. NothingB. No one C. Nothing [ [答案答案] B] B　　Unit 2 We have not found life on any other planets yet. & Unit 3(2)(2)[ [2012017 7• •武汉武汉] ]——The frozen yogurt tastes like ice The frozen yogurt tastes like ice cream but has ________ of the fat.cream but has ________ of the fat. ——It suits me fine. I'm on a diet.It suits me fine. I'm on a diet. A A．．nonenone　　　　B B．．neitherneither C C．．any Dany D．．some some Unit 2 We have not found life on any other planets yet. & Unit 3 [ [答案答案] A] A　　[ [观察观察] ] A A groupgroup of people are walking up the Great of people are walking up the Great Wall. Wall. 一群人正在登长城。

一群人正在登长城[ [探究探究] ] groupgroup是可数名词，常构成短语是可数名词，常构成短语 a group of, a group of, 意为意为““ ””，其后只能接可数名词其后只能接可数名词2 group2 group　　n.n. 群；组群；组 Unit 2 We have not found life on any other planets yet. & Unit 3一群；一组一群；一组[ [拓展拓展] (1) a group of] (1) a group of后面加复数名词时，谓语动词用复后面加复数名词时，谓语动词用复数形式；而数形式；而a pair of/a piece ofa pair of/a piece of等后面加复数名词时，等后面加复数名词时，谓语动词用单数形式；谓语动词用单数形式；““数词＋数词＋pair(s) ofpair(s) of””在句中作主在句中作主语时，谓语动词要与语时，谓语动词要与pairpair的单复数保持一致的单复数保持一致A group of students are running on the playground. A group of students are running on the playground. 一群学生正在操场上跑步。

一群学生正在操场上跑步Three pairs of jeans are in the bag.Three pairs of jeans are in the bag. 包里有三条牛仔裤包里有三条牛仔裤2)in groups(2)in groups意为意为““成群结队地；以小组为单位成群结队地；以小组为单位””Do you teach your students singly or in groups?Do you teach your students singly or in groups?你教学生是单个教还是按组教？你教学生是单个教还是按组教？Unit 2 We have not found life on any other planets yet. & Unit 3 活学活用活学活用(1)(1)用所给动词的适当形式填空用所给动词的适当形式填空①Look! A group of Americans ______________ ①Look! A group of Americans ______________ (visit)the History Museum now.(visit)the History Museum now.②The pair of sunglasses ________ (look) cool. The ②The pair of sunglasses ________ (look) cool. The sunglasses ________ (be) very colourful.sunglasses ________ (be) very colourful.(2)(2)单项填空单项填空It's a good idea to learn English ________It's a good idea to learn English ________．．A A．．by groupsby groups　　B B．．in groupin groupC C．．in groups Din groups D．．at groupat groupare visiting are visiting Unit 2 We have not found life on any other planets yet. & Unit 3[ [答案答案] C ] C looks looks are are 3 communicate3 communicate　　v.v. 联系；交流联系；交流[ [观察观察] ] She often She often communicatescommunicates with her mother with her mother by phone. by phone. 她经常用和妈妈通话。

她经常用和妈妈通话[ [探究探究] ] communicatecommunicate用作不及物动词，意为用作不及物动词，意为““ ””常用搭配：常用搭配：communicate communicate with sb.with sb.意为意为““ ”” Unit 2 We have not found life on any other planets yet. & Unit 3通讯；沟通；交流通讯；沟通；交流和某人沟通和某人沟通/ /交流交流/ /通话通话[ [拓展拓展] ] communicatecommunicate用作及物动词，意为用作及物动词，意为““传达；传传达；传递递””其常用搭配：其常用搭配：communicate sth. to municate sth. to sb.意为意为““把某把某事传达给某人事传达给某人””People now communicate greetings to each other by People now communicate greetings to each other by email or by mobile phone.email or by mobile phone.人们现在使用电子邮件或传递问候。

人们现在使用电子邮件或传递问候Unit 2 We have not found life on any other planets yet. & Unit 3[2016[2016··菏泽菏泽] ] TodayToday，， WeChatWeChat（）（） becomes very becomes very popularpopular，， and more and more people like to use it and more and more people like to use it to to 　　　　　　　　 each other. each other. A. depend on A. depend on B. communicate with B. communicate with C. believe inC. believe in活学活用活学活用[ [解析解析] B] B　考查动词短语辨析句意：现在，变得非常　考查动词短语辨析句意：现在，变得非常受欢迎，而且越来越多的人喜欢使用它来与彼此受欢迎，而且越来越多的人喜欢使用它来与彼此 ________________。

depend ondepend on意为意为““依赖，依靠依赖，依靠””；；communicate withcommunicate with意为意为““和和…………交流交流””；；believe inbelieve in意为意为““相信相信””由句意可知此处是由句意可知此处是指越来越多的人使用交流，故选指越来越多的人使用交流，故选B BUnit 2 We have not found life on any other planets yet. & Unit 3句型透视句型透视1 The sun and its planets are called the solar 1 The sun and its planets are called the solar system system…… 太阳和它的行星被称为太阳系太阳和它的行星被称为太阳系…………[ [探究探究] ] ““are calledare called”” 是被动语态形式当主语是谓是被动语态形式当主语是谓语动词的动作对象时，句子要用被动语态被动语态结构是语动词的动作对象时，句子要用被动语态被动语态结构是““主语＋主语＋bebe动词＋动词＋donedone＋其他＋其他””。

The machine is made in Shanghai. The machine is made in Shanghai. 这台机器是在上海制造的这台机器是在上海制造的Unit 2 We have not found life on any other planets yet. & Unit 3Chinese New Year ________ the Spring Festival. Chinese New Year ________ the Spring Festival. People often eat dumplings.People often eat dumplings.A A．．is calledis called　　 B B．．was calledwas calledC C．．calls Dcalls D．．calledcalled活学活用活学活用Unit 2 We have not found life on any other planets yet. & Unit 3[ [答案答案] A] A[ [探究探究] ] 句中的句中的itit是形式主语，真正的主语是动词不定式是形式主语，真正的主语是动词不定式““to imagineto imagine””。

It isIt is＋＋adj.adj.＋＋(for sb.)to do (for sb.)to do sth.sth.””意为意为““( (对某人来说对某人来说) )做某事是做某事是…………的的””It's necessary for us to wait in line. It's necessary for us to wait in line. 对我们来说，排队等候是有必要的对我们来说，排队等候是有必要的2 It is impossible to imagine.2 It is impossible to imagine.无法想象无法想象Unit 2 We have not found life on any other planets yet. & Unit 3[2017[2017• •南充南充] ]——Mario, your mobile phone is ringing.Mario, your mobile phone is ringing.——Wait a minute. ItWait a minute. It’’s dangerous ________ us s dangerous ________ us ________ it while crossing the street.________ it while crossing the street.A A．．for; answering for; answering B B．．for; to answerfor; to answerC C．．of; answer of; answer D D．．of; to answerof; to answer活学活用活学活用Unit 2 We have not found life on any other planets yet. & Unit 3[ [答案答案] A] A[ [探究探究] (1)enough ] (1)enough 既可作形容词又可作副词。

作形容既可作形容词又可作副词作形容词时，修饰名词，通常放在名词词时，修饰名词，通常放在名词 ；作副词时，修；作副词时，修饰形容词或副词，放在其饰形容词或副词，放在其 There is enough bamboo for the pandas to eat.There is enough bamboo for the pandas to eat.有足够多的竹子给熊猫吃有足够多的竹子给熊猫吃3 3However, no spaceship has travelled far However, no spaceship has travelled far enough to reach other stars in our Galaxy.enough to reach other stars in our Galaxy.然而，没有一艘宇宙飞船能飞得足够远以到达银河系然而，没有一艘宇宙飞船能飞得足够远以到达银河系的其他恒星的其他恒星Unit 2 We have not found life on any other planets yet. & Unit 3前面前面后后(2)(2)其常用结构：其常用结构：““adj./adv.adj./adv.＋＋enough to doenough to do…”…”意为意为““足够足够…………能够做能够做……”……”，其反义词组是，其反义词组是““tootoo……to to dodo…”…”，意为，意为““太太…………而不能做而不能做……”……”。

The girl runs fast enough to catch up with her The girl runs fast enough to catch up with her brothers.brothers.这个女孩跑得足够快，赶上了她的哥哥们这个女孩跑得足够快，赶上了她的哥哥们Unit 2 We have not found life on any other planets yet. & Unit 3(1)(1)单项填空单项填空[2017[2017• •黔南黔南] ]Amanda read the article ________Amanda read the article ________，， and and found something important in it.found something important in it.A A．．enough careful enough careful B B．．carefully enoughcarefully enoughC C．．enough carefully enough carefully D D．．careful enoughcareful enough活学活用活学活用Unit 2 We have not found life on any other planets yet. & Unit 3[ [答案答案] B] B(2)(2)改为同义句改为同义句The little girl isn't old enough to dress herself.The little girl isn't old enough to dress herself.The little girl is ________ young ________ ________ The little girl is ________ young ________ ________ herself.herself.Unit 2 We have not found life on any other planets yet. & Unit 3tootooto dressto dress[ [探究探究] ] (1)(1) ““with so many stars in the universewith so many stars in the universe””是是介词短语，在句中作状语。

介词短语，在句中作状语With so many things to do, we have no time to play.With so many things to do, we have no time to play.要做的事情这么多，我们没有时间玩要做的事情这么多，我们没有时间玩2)so many(2)so many意为意为““如此多的如此多的””，其后接可数名词复数其后接可数名词复数so so muchmuch意为意为““如此多的如此多的””，其后接不可数名词其后接不可数名词4 4 ……with so many stars in the universe, are we with so many stars in the universe, are we alone, or is there life out there in space? alone, or is there life out there in space? …………宇宙中有这么多恒星，我们是孤独的吗？或者说太宇宙中有这么多恒星，我们是孤独的吗？或者说太空中还有其他生命存在吗？空中还有其他生命存在吗？Unit 2 We have not found life on any other planets yet. & Unit 3(1)(1)我们的老师手里拿着书进了教室。

我们的老师手里拿着书进了教室 Our teacher came into the classroom, _____ books Our teacher came into the classroom, _____ books _____ his hand. _____ his hand.(2)(2)春节期间，大街上有如此多的人春节期间，大街上有如此多的人 There are ______ _________ people in the street There are ______ _________ people in the street during the Spring Festival. during the Spring Festival.活学活用活学活用withwithininso manyso manyUnit 2 We have not found life on any other planets yet. & Unit 3课文回顾课文回顾In the universe, are we 7.________In the universe, are we 7.________，， or is there 8.________ out there in space? or is there 8.________ out there in space? Unit 2 We have not found life on any other planets yet. & Unit 3Anyone out Anyone out therethere？？There has been life on the earth for There has been life on the earth for 1._________________________ years.1._________________________ years.The sun and its planets are called 2.________________.The sun and its planets are called 2.________________. There are 3.There are 3.__ ________ ______ stars in the Galaxy. stars in the Galaxy.Scientists have 4Scientists have 4.___ _____ many other galaxies many other galaxies in the universe.in the universe.Scientists have sent spaceships to 5.________ Scientists have sent spaceships to 5.________ and 6.________ the solar system.and 6.________ the solar system.hundreds of millions ofhundreds of millions ofthe solar systemthe solar systembillions ofbillions ofdiscovereddiscoveredMarsMarsoutsideoutsidealonealonelifelife。