新人教版八年级上册Unit7全单元课件.ppt
live to be 200 years old live on the earth live on a space station live with somebody use the subway lessvery big and crowdedprediction about the futurea book about futurein the futurebe more crowded and polluted 活到活到200 岁岁居住在地球上居住在地球上生活在空间站生活在空间站和某人生活在一起和某人生活在一起更少使用地铁更少使用地铁非常大而拥挤非常大而拥挤关于未来的预测关于未来的预测一本关于未来的书一本关于未来的书在未来在未来更拥挤,更污染更拥挤,更污染be in (great) dangerhave to do somethingfly to other planetsplay a part in saving the earth blue skiespend time together on weekendsfly rockets to the moonan apartment across the street from herewatch movies about the future human servants处于(巨大的)危险中处于(巨大的)危险中不得不做不得不做飞到另外的星球飞到另外的星球在拯救地球中起重要作用在拯救地球中起重要作用蓝色的天空蓝色的天空周末在一起度过周末在一起度过飞火箭到月球飞火箭到月球这条街道的对面的公寓这条街道的对面的公寓看关于未来的电影看关于未来的电影人类仆人人类仆人ndo jobs like working in dirty or dangerous placesndo simple jobs over and over againnhelp to do somethingnget borednmake robots look more like humansndisagree with somebodynagree with somebodynIf buildings fall down with people insidenlook for nat some point, n 做那些在又脏又危险的地方的工作做那些在又脏又危险的地方的工作n 反反复复做证简单的工作反反复复做证简单的工作n 帮助做帮助做n 变得厌倦变得厌倦n 使机器人看起来象人类使机器人看起来象人类n 不同意某人的意见不同意某人的意见n 同意某人的意见同意某人的意见n 要是楼房倒塌,把人压在里面要是楼房倒塌,把人压在里面n 寻找寻找n 在一定的时候,在一定的时候,n do the same things as we can n keep a birdn look less smartn take a holidayn the meanings of wordsn fresh watern clean airn clean the kitchenn fly up in to the skyn in the worldn pretty far fromn 做我们能做的事情做我们能做的事情n 养鸟养鸟n 看起来没有那么漂亮看起来没有那么漂亮n 度假度假n 单词的意思单词的意思n 淡水淡水n 清新的空气清新的空气n 打扫厨房打扫厨房n 飞上天空飞上天空n 在世界上在世界上n 离离相当远相当远1.Do you think there will be robots in peoples homes? 本句是一个含有宾语从句的主从复合句,本句是一个含有宾语从句的主从复合句,Do you think是是主句,主句,there will be.是宾语从句。如果是宾语从句。如果do you think放在放在句中,则为插入语,常放在疑问句之后,结构为:疑问词句中,则为插入语,常放在疑问句之后,结构为:疑问词+do you think+主语主语+谓语谓语+其他成分?其他成分? e.g. Do you think he is a teacher? What time do you think the train will arrive here?there will be意为意为“将有,会有将有,会有”,是,是there be句型的一般句型的一般将来式,其否定形式是将来式,其否定形式是there wont be.,一般疑问句形式是一般疑问句形式是Will there be.?有时可以与有时可以与There is/are going to be.相互相互转换。转换。 e.g. There will be a film this evening. 否定句,疑问句,答语否定句,疑问句,答语拓展:拓展:there be句型的一个重要用法是句型的一个重要用法是“就近一致就近一致”原则,原则,即谓语动词即谓语动词be和最靠近它的名词在数上保持一致。和最靠近它的名词在数上保持一致。 e.g. There is a book and two rulers on the desk. There are two rulers and a book on the desk.there be与与have/has的区别:前者表示的区别:前者表示某地存在某物某地存在某物;后;后者表示者表示“拥有拥有”的意思。二者有时可以互换。的意思。二者有时可以互换。 e.g. Our school has twenty classes. =There are twenty classes in our class.(2012.江苏扬州)江苏扬州)-Why are you in such a hurry, John? -There _ a basketball match between Class Three and our class in ten minutes. A. is going to be B. is going to have C. will have D. will holdA2. I think every home will have a robot. 这是一个含有宾语从句的主从复合句,这是一个含有宾语从句的主从复合句,I think为主句,为主句,every home will have a robot 是宾语从句,用来表述自己是宾语从句,用来表述自己的看法。的看法。 e.g. I think the boy will buy a few new books about English.拓展:根据语法的惯例,拓展:根据语法的惯例,I think/suppose/believe等后的宾语等后的宾语从句如果是否定句,要把否定转移到主句的动词上,这种从句如果是否定句,要把否定转移到主句的动词上,这种现象称之为现象称之为“否定转移否定转移”。 e.g. I dont think he can swim. I dont think you can go there by bus.:其反意疑问句的变法:其反意疑问句的变法此处用作形容词,意为此处用作形容词,意为“每个的,每一每个的,每一”。 e.g. Not every horse can run fast.辨析:辨析:every与与eache.g.Every teacher knows her. There are lots of trees on each side of the road. Each of us has a dictionary. every形容词形容词指三者或三者以上范围中的指三者或三者以上范围中的“每一个每一个”,侧重总,侧重总体,不能单独使用体,不能单独使用each形容词形容词指两者或两者以上中的指两者或两者以上中的“每一个每一个”,侧重个体,侧重个体代词代词可作主语或宾语,其后可跟介词可作主语或宾语,其后可跟介词of every与与each的区别的区别every用来表用来表整体整体,each用来表用来表个别个别,each最低需最低需是是两两,every最低需是最低需是三三。every作主用作主用单数单数,each可单可单也也可复可复,作,作主、定主、定用用单数单数,其他其他情况用情况用复数复数。3Books will only be on computers,not on paper. 书只会在电脑上,而不会在纸上。书只会在电脑上,而不会在纸上。 paper n. “纸,纸张纸,纸张”,是,是不可数名词不可数名词。表示。表示“一张一张纸纸”用用a piece of paper,“两张纸两张纸”用用two pieces of paper。e.g. There is a piece of paper on the table.桌子上有一张纸。桌子上有一张纸。paper n. “试卷试卷”,作可数名词,有复数形式。,作可数名词,有复数形式。 e.g. I lost a history paper. 我丢了一份历史试卷。我丢了一份历史试卷。【例题】【例题】 The teacher marked(批分数批分数) the exam _ and wrote the students grades on a piece of _.Apapers;paper Bpaper;papersCpaper;paper Dpapers;papers解析解析: 根据前半句的根据前半句的marked可知第一空填可知第一空填papers,意为,意为“试卷试卷”,是可,是可数名词;第二空填数名词;第二空填paper,构成固定搭配,构成固定搭配a piece of paper “一张一张纸纸”。答案。答案 A句意句意老师批阅了试卷并把学生们的分数写在了一张纸上。老师批阅了试卷并把学生们的分数写在了一张纸上。4.Will people use money in 100 years?in 100 years意为意为“在在100年以后年以后”,其中,其中in为介词,其后跟一段时间表示为介词,其后跟一段时间表示“.之后之后”,通常用于一般将来时,对其提问时须用,通常用于一般将来时,对其提问时须用how soon(多久)。(多久)。 -How soon will your mother finish cooking dinner? -In an hour.辨析:辨析:in 与与afterin和和after都表示都表示“在在.之后之后”,它们的用法见下表:,它们的用法见下表: e.g. He will be back in two days. He started on Sunday and arrived in Beijing after three days.in用来表示以现在为起点的将来某用来表示以现在为起点的将来某一段时间之后,后接时间段一段时间之后,后接时间段用于将来时用于将来时after既可接时间点又可接时间段既可接时间点又可接时间段用于过去时用于过去时5There will be fewer people.将有更少的人。将有更少的人。本句是含有本句是含有there be句型的一般将来时的简单句。句型的一般将来时的简单句。 结构为:结构为:There will be主语其他。主语其他。其否定形式是在其否定形式是在will 后加后加not;疑问句形式是把疑问句形式是把will 提到提到there前前。简略肯定回答:简略肯定回答:Yes,there will.简略否定回答:简略否定回答:No,there wont.e.g. There will not be enough room for people to live in. 将没有足够的给人住的空间。将没有足够的给人住的空间。e.g. Will there be fewer animals in the world? 世界上将有更少的动物吗?世界上将有更少的动物吗?fewer adj. (few的比较级的比较级) 较少的;更少的,修饰较少的;更少的,修饰可数名词的复数可数名词的复数形式。形式。 e.g. I have fewer friends.我有更少的朋友。我有更少的朋友。fewer,less和more(1)fewer同上。 e.g. My friend has fewer apples than I. 我朋友比我的苹果少。(2)less较少的;更少的,little的比较级,修饰不可数名词。 e.g. I have less money in my bag. 我包里的钱更少了。(3)more更多的,many和much的比较级,可修饰可数名词,也可修饰不可数名词。 e.g. There is more water in the bottle. 瓶子里的水更多了。 e.g. We have more challenges. 我们有更多的挑战。【例【例1】Will there _ any paper money in 100 years?No,_. Ahave;there wontBbe;there wont Chave;they wontDbe;they wont点拨:根据问句中的点拨:根据问句中的there可知是考查可知是考查there be句型;其简略否定答语也用句型;其简略否定答语也用there。答案:答案:B【例【例2】Well try our best to do the work with _money and _ people. Afew;little Ba few;a little Cless;fewer Dfewer;less点拨:点拨:money是不可数名词,要用是不可数名词,要用little及其有关的词或短语修饰;及其有关的词或短语修饰;people是复数是复数形式,要用形式,要用few及其有关的词或短语修饰。句意为及其有关的词或短语修饰。句意为“我们将尽力用更少的资金、更少的我们将尽力用更少的资金、更少的人去完成这项工作人去完成这项工作”。答案:答案:C【例【例3】根据汉语意思完成下句】根据汉语意思完成下句我想要更多水、更少的食物。我想要更多水、更少的食物。I would like _ water and _ food.答案:答案:more;less6. There will be (more/less/fewer)pollution. pollution不可数名词,意为不可数名词,意为“污染;污染物污染;污染物”。 air pollution 空气污染空气污染 noise pollution 噪音污噪音污染染 e.g. There is a lot of pollution in the air here.拓展:拓展:pollution的动词形式是的动词形式是,意为意为“污染;弄脏污染;弄脏”,其过去式为其过去式为polluted,现在分词为现在分词为polluting。 e.g. All these waste products are polluting the river.【例题】【例题】Now _ is very serious.Some rivers and lakes are _.Apollution;polluteBpolluted;pollutionCpollution;polluted Dpollute;polluted点拨:浏览题干可知,第一空在句中作主语,故用名词点拨:浏览题干可知,第一空在句中作主语,故用名词pollution;第二;第二空在系动词空在系动词are后,故用形容词后,故用形容词polluted;pollute是动词。句意为是动词。句意为“现在污染很严重。一些河流、湖泊被污染了现在污染很严重。一些河流、湖泊被污染了”。 答案:答案:C7.Whats your prediction about the future?future名词,意为名词,意为“将来;未来将来;未来”。常用短语:常用短语:in the future意为意为“在将来,以后在将来,以后”,特指将来,特指将来的某一时刻。的某一时刻。 e.g. Who knows what will happen in the future?拓展:拓展:in future指从今以后的全部将来,相当于指从今以后的全部将来,相当于from now on。 e.g. In future youd better get his permission first.8. I dont think so. I dont think so.是英语口语中常用的一个短句,表示否定是英语口语中常用的一个短句,表示否定对方的意见或观点,意为对方的意见或观点,意为“我不这样认为我不这样认为”,其肯定形式,其肯定形式为为I think so.。 e.g. -Look at the clouds. It will be rainy soon. -I dont think so. I think it will be sunny soon.拓展:类似的结构还有拓展:类似的结构还有I hope so.(我希望是这样的)(我希望是这样的) I hope not. (我希望不是这样)(我希望不是这样) Im afraid so. (恐怕如此)(恐怕如此) Im afraid not.(恐怕不是)(恐怕不是)9We can use less water and plant more trees. plant v. 种植种植e.g. In spring,people are busy planting trees. 春天,人们忙于植树。春天,人们忙于植树。plant n. 植物植物 e.g. Green plants are good for health. 绿色植物有益于身体健康。绿色植物有益于身体健康。 e.g. I like putting some plants in my living room. 我喜欢在客厅摆放一些植物。我喜欢在客厅摆放一些植物。【例题】【例题】Do you like _?Aplanting planting Bplants plantingCplanting plants Dplant plant点拨:浏览各选项可知点拨:浏览各选项可知 like后接动词后接动词-ing形式;形式;plant有两种含义,作名有两种含义,作名词时意为词时意为“植物植物”。句意为。句意为“你喜欢种植物吗?你喜欢种植物吗?”,故选,故选C项。项。答案:答案:C10Everyone should play a part in saving the earth.play a part 参与参与(某事某事),常用短语为:,常用短语为:play a part in.参与到参与到中,中,in是介词,后接名词、代词或是介词,后接名词、代词或动词动词-ing形式形式。 e.g. Lets play a part in the discussion. 我们参与到讨论中吧。我们参与到讨论中吧。e.g. Children are playing a part in cleaning the classroom. 孩子们正参与打扫教室。孩子们正参与打扫教室。【例题】【例题】Will you play a part _ the animals? Asave Bto save Cin saving Din save点拨:点拨:play a part in.意为意为“参与到参与到中中”,in是介词,后接名词、是介词,后接名词、代词或动词代词或动词-ing形式。故选形式。故选C项。项。答案:答案:C11.So what will the future be like? 为固定句式,意为为固定句式,意为“.怎么样?怎么样?”其中其中,like是介词,意为是介词,意为“像,相似像,相似”。 e.g. Whats the weather like today?拓展:拓展:Whats sb. like?某人怎么样?(某人怎么样?(常用于询问某人的相常用于询问某人的相貌、性格、品质貌、性格、品质) e.g. -Whats Tom like? -He is funny. -Whats your father like? -He is tall and thin.12.There will be fewer trees and the environment will be in great danger. in danger意为意为“处于险境,在危险中处于险境,在危险中”,其反义词为,其反义词为out of danger,意为,意为“脱险脱险”。 e.g. Some animals are out of danger.拓展:拓展:danger的形容词是的形容词是dangerous,意为,意为“危险的危险的”。 e.g. Its very dangerous to play on the road.【例题】【例题】Its _ to climb(爬爬) the tall tree.Be careful.AdangerBdangerousCbusy Ddifficult点拨:根据点拨:根据“小心小心”可知可知“爬那棵高树是危险的爬那棵高树是危险的”。danger是名词,意是名词,意为为“危险危险”。is后接形容词作表语。后接形容词作表语。答案:答案:B13Today there are already robots working in factories.现在已现在已经有机器人在工厂里工作了。经有机器人在工厂里工作了。本句含有固定句型:本句含有固定句型:There is/aresb./sth.doing sth.表示表示“有有某人某人/某物在做某事某物在做某事”。e.g. There are some boys swimming in the swimming pool. 有一些男孩在游泳池里游泳。有一些男孩在游泳池里游泳。e.g. There is a bag lying on the ground. 有一个包躺在地上。有一个包躺在地上。【例题】【例题】There will be robots _ with us in the future.Atalk Bwill talk Ctalking Dtalked点拨:句意为点拨:句意为“将来会有机器人和我们交谈将来会有机器人和我们交谈”。There will besb.doing sth.是是There is/aresb./sth.doing sth.的变形。的变形。答案:答案:C14. But I want to live on the earth.辨析:辨析:on the earth与与on earth on the earth意为意为“在地球上在地球上”,用作地点状语,位于句首,用作地点状语,位于句首或句末。或句末。 on earth意为意为“究竟,到底究竟,到底”,用于疑问代词或副词后,以,用于疑问代词或副词后,以加强语气。加强语气。 e.g. All the living things on the earth depend on the sun. What on earth do you mean?15For example,they can help to build cars,and they do simple jobs over and over again.over and over again 多次;反复地多次;反复地e.g. He told me to look after his dog over and over again. 他再三地告诉我照顾他的小狗。他再三地告诉我照顾他的小狗。e.g. I dont like to do boring exercises over and over again. 我不喜欢反复地做无聊的习题。我不喜欢反复地做无聊的习题。once again 再一次再一次 e.g. Lets do that once again.我们再做一次。我们再做一次。【例题】【例题】Teachers shouldnt ask students to copy the words _.Its simple and boring.Aagain Bonce againCover and over again Dagain over and over点拨:点拨:A项意为项意为“又一次又一次”;B项意为项意为“再一次再一次”;C项意为项意为“多次;反多次;反复地复地”;D项短语有误。由句意项短语有误。由句意“教师不应该让学生反复地抄写单词。教师不应该让学生反复地抄写单词。那简单又无聊。那简单又无聊。”可知可知C项符合句意。项符合句意。答案:答案:C16.However, some scientists believe taht although we can make robots move like people. believe此处用作及物动词,意为此处用作及物动词,意为“相信;认为有可能相信;认为有可能”。 e.g. You cannot believe anything she says.拓展:拓展:believe sb.意为意为“相信某人(所说的话是真的)相信某人(所说的话是真的)”;believe in sb. 意为意为“信任某人信任某人”。 e.g. I believe him, but I cant believe in him.17.Bue many scientists disagree with Mr. White. disagree不及物动词,意为不及物动词,意为“不同意不同意”,其反义词是,其反义词是agree。 拓展:拓展:able (能,会)能,会)-disable(使丧失能力)(使丧失能力) like(喜欢)喜欢)-dislike(不喜欢)(不喜欢) appear(出现)(出现)-disappear(消失)(消失) believe(相信)(相信)-disbelieve(不相信)(不相信)18.However, they agree it may take hundreds of years. hundreds of意为意为“许多,大量许多,大量;数百的;数以百计的数百的;数以百计的”。 e.g. Hundreds of birds fly in the sky.拓展:拓展:hundred, thousand, million, billion等数词,当前面等数词,当前面是是具体数字具体数字时,其后不加时,其后不加-s,不和,不和of连用。连用。若表示一个不确定的数字,前面若表示一个不确定的数字,前面没有具体数字没有具体数字时,其后要时,其后要加加-s,而且与,而且与of连用。连用。【例题】【例题】There are _of students in our school but only _ of them are girls. Ahundreds;two hundred Bhundred;two hundreds Chundreds;two hundreds Dhundred;two hundred点拨:点拨:hundreds of students意为意为“数百名学生数百名学生”;two是基数词,是基数词,因此因此hundred用原形。句中第二空格后用原形。句中第二空格后of 意为意为“的的”,并非,并非two hundreds of,故选,故选A项。句意为项。句意为“我们学校有数百名学生,但其中我们学校有数百名学生,但其中只有二百名是女生只有二百名是女生”。答案:答案:A19.This was not possible 20 years ago, but computers and rockets also seemed impossible 100 years ago. possible形容词,意为形容词,意为“可能的可能的”,其反义词为,其反义词为impossible,意为意为不可能的不可能的”。 拓展:拓展:as.as possible “尽可能地尽可能地.”,两个,两个as中间用形中间用形容词或副词原级。容词或副词原级。 as soon as possible 尽可能快(指时间)尽可能快(指时间) as fast as possible 尽可能快(指速度)尽可能快(指速度) as quickly as possible 尽可能快(指动作)尽可能快(指动作) as early as possible 尽可能早(指时间)尽可能早(指时间)if possible 如果可能的话如果可能的话 e.g. If possible I want to go to the USA for study.20If buildings fall down with people inside,snake robots will be able to help look for people under the buildings.本句是复合句,本句是复合句,if引导的是条件状语从句。引导的是条件状语从句。. 倒塌;跌倒;掉落,过去式为:倒塌;跌倒;掉落,过去式为:fell。 e.g. Rain is falling.雨正在下。雨正在下。e.g. fall down 突然倒下;跌倒;倒塌突然倒下;跌倒;倒塌e.g. An earthquake happened and many houses fell down. 地震发生了,许多房屋都倒塌了。地震发生了,许多房屋都倒塌了。fall n. 秋天秋天e.g. Its cool in fall.秋天很凉爽。秋天很凉爽。【例【例1】Last night his house _ after a heavy rain.Afell down Bfalls downCfelt down Dfeels down点拨:根据点拨:根据last night可知时态用一般过去时;可知时态用一般过去时;fall 是动词原形,过去式是动词原形,过去式为为fell;而;而felt是是feel的过去式。句意为的过去式。句意为“昨天晚上,他的房子在一场昨天晚上,他的房子在一场大雨后倒塌了大雨后倒塌了”。答案:答案:A1. - _ will Mr. Green be back? - In a week, I think. A. How often B. How many C. How long D. How soon( )2. There is _pollution and _fishes in the river now than 20 years ago.A. more, less B. more, fewer C. less, much D. fewer, many( )3.The sign(标志牌)(标志牌)made us _ safe. AfeelBfeels Cto feel Dfelt( ) 4. .He seemed_ what had happened.Ato knowBknow Cknows Dknowing( )5.Everyone should play a part in _the earth.A.save B.saves C.saving D.saved DBAAC( )6.There _ a dolphin show in the zoo tomorrow evening.A. was B. is going to have C. will have D. is going to be( )7.Tomorrow he _a kite in the open air first, and then _boating in the park. A. will fly; will go B. will fly; goes C. is going to fly; will goes D. flies; will go( )8.I want to be an astronaut, then Ill _to the moon.A. can fly B. be able to fly C. can flying D. be able to flying( )9. They have_ work today and theyll have_ tomorrow.A. more;moreB. much;much C. much;more D. many;more( )10. My father will be back from Beijing _ a week.A. in B. for C. after D. laterDABCA6. What did teenagers do for fun ten years ago? (用用in ten years 改写改写) What _ _ _for fun in ten years?7.Its raining now.(用用soon替换替换now) It _ _ soon.8.There will be some paper money in 100 years. (改为否定句改为否定句)There _ be _ paper money in 100 years.9. He often watches TV on Sunday evening. (用用tomorrow evening 改写改写)He _ _ TV tomorrow evening.10.They will study at home on computers this Saturday.(改为一般疑问句)(改为一般疑问句) _ they _ at home on computers this Saturday?willteenagersdowill rainwontanywill watchWillstudy be, stand, come true, have to, before, and , scientist, late, find, stay There are many people in the world now. There (1)_ a lot more people next century(世纪世纪). The earth will be very crowded (拥挤的拥挤的) (2)_ there will be little room for each person. Maybe there will be (3)_ room only on the earth 600 years (4)_. That will be a very serious problem. So man is (5)_ of a way to solve the problem. The moon is the satellite (卫星卫星) of the earth. Maybe man will go to (6)_ on the moon one day. But there is no air, no plants, no life there. So (7)_ are doing experiments in many ways. They (8)_ solve(解决解决) many problems (9)_ man can live on the moon. Im sure our dream will (10)_ in the next century. will beandstandinglaterfindingstaycome truehave tobeforescientists Robots seem new to most people, but they have