bunit1Reading英文四会词汇知识

1、课题9 B Unit 1Life on MarsReadi ng课型新授课教学目标知识目标：四会内容：词汇：imagi ne pla net crowded polluted hopefully huma ndevelop sure settle float fashi on able various compareforce vehicle star population enjoyable normal句型： Many people believe that we will live on the planet Mars by the year 2100.However, n obody

2、is sure if these pla nets can produce eno ugh water. Manypeople believe that robots will do most of our work and that we will have more time for our hobbies.三会 内容： 词汇：spacecraftspaceshuttlegravitydomein terpla netary技能目标：1、了解未来在另一个行星上生活的语境。2、识别和理解有关火星生活的词汇。3、识别并列出地球生活与火星生活的不同之处。情感、态度、价值观：培养学生的环保意识。重

3、点难占八、了解火星地理、环境背景，获取一定的信息，完成课文理解以及书后练 习。学情分析学生具备一定的地理以及环保的常识，但是独立理解科普以及科幻的文 章还是有一定困难，需要教师先对课文背景知识进行讲解与引导，并帮助学生分析课文结构和大意。教学方法任务型教学教具准备多媒体课件教学步骤教师活动学生活动个性化设计Step 1 Pre-read ing通过教师的问学生的讨论既T:Every one knows thatChinahas laun chedChang e Iintospace.That s really exciting.Itcan help us to know more about

4、Moon. Have you ever thought of liv ing on Moon or some other planets? We are used toliv ingon Earth, but somepeople are thi nking about moving to other planets. Why? Let s look at some pictures first. (PPT)1. Lead-i nT: What can you find from the pictures?What problems does Earth have ?T: The pictur

5、es show that Earth has two problems: one is the large population ( It scrowded), the other is the serious pollution ( It s polluted).T: Now Earth is crowed and polluted. What shall we do? Some scientists say there is a better world Mars. (PPT) Do you know the pla net Mars?题激活学生已 有的对义演的 知识。为下面的 写作做铺垫

6、。提出关于地球 污染的问题，引 发学生讨论解 决的办法以及 环保的必要性。能够活跃课堂 气氛消除他们 的紧张心理， 也为他们的下 一步写作做一 个语言知识上 的准备。让学生了解环 境污染所引发 的各种不利方 面以及引导学 生想出各种解 决办法。And before we start to read the article Mars. Let s have a look at these new words first.Prese nt the picture of Mars and a spacecraft.Say: How can we travel to Mars? (we can tra

7、vel to Mars by space craft.)Teach “ spacecraft ”Say: Spacecrafts are too slow to take so manypeople to Mars at the moment. But by the year 2100, we can travel there by spaceshuttles.SpaceshuttlesPresent a pictureof spaceshuttles (PPT)2. Pre-read ingT: Boys and girls,how muchdoyou know about Mars? Do

8、 you its color, its size and some other information? Nowlet me show you my research on Mars. (PPT)1) The color of Mars: red ;2) The size: about on e-half the diameter of Earth;3) Location:It s between利用多媒体手 段让学生了解 火星的地理常 识以及人类登 陆火星所需要 的条件。激发学 生探究科普类 文章的兴趣与 积极性。学生通过教师 的讲解了解一 些天文常识。Earth and Jupiter i

9、n our solar system.4) Its moons: Phobos and Deimos5) Surface: The surface ofMars is a littlelike thesurface of Earth.6) Temperature:The lowesttemperaturewillbe-133C (degreescen tigrade)and the hi ghest will be 27 C(PPTT: (Present more words and expressions)Marsis such apla net how will people live t

10、here? The firstsettlershave to wear space suit and hemetto prevent laserlight.People can easilyfloatbecauseofthelow-gravity.So they wearspecialbootstomakethemselves heavier.Peoplecan live in domes. It is said that Mars will turn into ano ther blue earth in the future. I think people can live more co

11、mfortablebythe n.T:Now you have learnedsometh ing about Mars from my research.But isthereanything else you want to know about Mars?T: Please fill in the bla nkswiththe correctwordsaccord ingto the wholesentence and the En glish expla nati on in the brackets.(PPT)T: OK. Let s check the an swers toget

12、her.1) A large body in space that moves around the star, e. g., the sun means pla net.2) A power that keeps us fromfloat ingin the air meansgravity.3) A vehicle designed fortravelinspace meansspacecraft.4) People who go to live in a new place mean settlers.5) Grow and improve means develop.6) Mach i

13、nes that can do tasks under the control of computer mean robots.教师通过学生 讨论和课件的 展示得出课文 的框架结构，为 下面学生的自 我习作做准备。学生对课文章 节框架结构的 了解为他们的 下一步的课文 理解提供了结 构上的帮助，。7) Small round pieces of medici ne mea n pills.T: Now read the new words after me. (2遍)New words: pla net gravity spacecraftsettlersdevelop robots pill

14、sT: What is the fastest way tolear nmoreaboutMars?That ssearchi ngtheInternet.Now look at thekeywords.Guesstheirmeanings first andthe n usethe search engines to help you.Try to findtheinformation about them on the In ternet. (PPT)1) crowded pla net : The populati on on Earth is about6.4 billionin 20

15、07. It sstillin creas ingquickly populationheremeans the nu mber of people. (PPT)2) space shuttles : They arenew kinds of spacecraft which can travelfaster in space.(PPT)3) speed boots : They arespecial shoes thatcan makeyou walk faster in space. (PPT)4) space home : It s a special round house in sp

16、ace. (PPT)5) robot settlers: Settlersare the pers ons who move to a new place ./ Maybe robotswill move to Mars and live on it first. (PPT)6) online teacher : The teacherwho can help you at any time and any place in an on-1 ine schoolsiscallede - teacher .(PPT)Step 2 While-readi ng1. Skimmi ngT: Now

17、would you please open your books at page 8? Read the article quickly and find out thekeywordofeachparagraph. It can be a word or somewords. You don t have to read it word by word. Just skim it. This kind of readi ng skill is called skimmi ng.T:OK, boys and girls.Let s check the answers now:(PPT)Para

18、1Crowded,polluted(populatio n,polluti on)Para2Tran sportPara3Food, water and airPara4GravityPara5HomePara6SchoolPara7Food2. ScanningT: That s very easy for you, right.Read each paragraphagain, this time you should be more careful and pay more atte nti onto the details.While readi ng the article,plea

19、se find out the answers to the questions .It s anotherkind of read ing skill called sca nningT:Now, boys and girls ,please look at the scree n here,let s check theanswers. (PPT探 Tran sport ( PPT1) What vehicle do people use to Mars at prese nt? And how long does it take?(Spacecraft. Mo nths.)2) What

20、 vehicle maypeople use to go to Mars in the future?And how long will it take?(Space shuttles. Only a very short time.)探 air, water, food( PPT3) What will scie ntists do tosolve the problemsof food,water and air?(Scie ntistswill developpla nts that can grow on Mars and produce the food, water and oxy

21、ge n .)4) What will food on Mars be like?(Maybe the food will be in theform of pills and will not beas tasty as they are today.)探 Gravity (PPT5) Is gravity on Mars a big problem? Why?(Yes,it is.Because thegravityonMarsisthree-eighths of the gravity on Earth.)6) What may happe n the n? (People may ju

22、mp high easily and float away into space.)7) What kind of shoes should people wear?(Peopleshould wearspecialbootstomakethemselves heavier.) 探 Home (PPT8) What kind of house may people live in?(A special dome with 10 bedrooms is highly possible.)9) Who will do most of our work?(Robots will do most of

23、 ourwork.)探 School ( PPT10) What kind of school will students study in? And what dothey call their teacher?(Students can study in online schools and they call their teacher e- teacher .)T: Well, you really did a good job today. From the reading we know that life on Mars is very different from that o

24、n Earth. Pleasecomparethesediffere nces and fill in the form below (PPT)T: Have you finished now? Let s check the answers together.Step 3 Post-readi ng1. Fill in the blanks (PPT)EarthtodayMarsin2100pollutedandcrowded1Spacecraftareslow.2Gravity is not a problem for us.3People can wear many types of s

25、hoes.4People do not have much space.5We take exams at school.6We havemanykinds offoodwithdiffere nttastes .7Keys:1) clean and has lots of space2) Space shuttles travel at half the speed of light.3) only about three-eighths of the gravity that we have on Earth4) People wear special boots.5) People li

26、ve in a dome with10 bedrooms.6) We take exams in online schools.7) Meals are just pills.T: Congratulations! You vegot all the right answers. You know every coinhas twosides . Here are some good points and bad points of livi ng on Mars. We call thegoodpoints “ adva ntages ”and badpoints “disadvantage

27、s ” .Please look at the scree n andfill in the right words.T: OK? Let s check the an swers now.Adva ntages探It snotor.探 Theis moreconvenient .People will wear specialPeoplewillhavespace.will do most of our work.we ll have more time for.探 Stude nts will study in schools.Keys:1 crowded polluted2transpo

28、rt3 boots 4 more5 Robots6 hobbies7on li neDisadvantages :探 Lowwillbedan gerous.Food does not taste.Space travel make peoplefeel.探 It s tooto stayoutside.探 It s tooaway fromfrie nds on Earth.Keys:I gravity 2 good 3 ill/sick4 cold 5 farT: Now would you please open your books at page 11 of the Students

29、 Book.Pleasecomplete Exercise C1 on pageIIT: .Have you fini shed them?Let s check the answers.(PPT)Keys:1 a 2 b 3 c 4 c 5 b 6 b7 a 8 bT:Welldone,you veremembered so much about Mars. Do you have any difficultieswhile read ing?Let s look at somesentences together.Step 4 Explain someimportant senten ce

30、s1There will be variousdesig ns for settlerstochoose from.将有许多种设计可供移居者选择。to choosefrom从中挑选 。e.g.我有很多双鞋子可以选择，但我决定不了选哪双。I have many pairs of shoes(to choose from), but I don tknow which pair.(to choose)2. The journey might take only a very short time in space shuttles that travel at halfthe speed of l

31、ight.用以光速一半速度飞行的太空穿梭机进 行旅程可能只花很短的时间。分析：此句是that连接的定语 从句。that引导的定语从句修饰 先行词space shuttles, 从句中 的动词的人称和数由先行词 space shuttles 决定。3. Compared with lifeonEarth, life on Mars will bebetter in many ways .与在地球上的生活相比，火星上 的生活在很多方面将会更好.compare with意思是与做比较”。在句中是过去分词短 语作状语，此时with和to可通 用。e.g.与我们的那条路相比,这条 路繁忙得多。This

32、road is quite busyours. (compared with/ to )4. Every student will have a computer at homeconnected to in ter-pla netaryn etwork. 每个学生家有一台连接星际网络 的电脑。connect to 意思是与连接”。这里的 connected to 是 过去分词后置作定语，修饰 computer。当然我们也可以用 connect to结构表示把和连接起来。e.g.江阴大桥把江阴和靖江连 接了起来.Jia ngyinBridgeJia ngyinJingjiang. (connectsto )T: Well, boys and girls, you really did a good job today.Homework:1 Read the passage aloud.2 Finish off the additional exercises.Additi