【原创】九上Unit 4, Topic 2, Section C修改

1、 Lets enjoy a short film“ The Martian ” 火星救援火星救援 Whats the movie about? Are you interested in exploring Mars? Lets explore Mars. Lets talk about “ Is Mars a good place for humans to live?” Free talk 1. The atmosphere of the Mars is mainly made up of _. A. oxygen B. carbon dioxide C. argon 火星的大气主要是二氧

2、火星的大气主要是二氧 化碳化碳(95.3%)(95.3%)。 2. The Mars is red because there is a lot of _ on the surface of it. A. gold B. silver C. ferric oxide 火星呈现出红色，主要火星呈现出红色，主要 是因为其表面有大量氧是因为其表面有大量氧 化铁。化铁。 3. Mars has _ natural satellites. A. one B. three C. two 火星有两个天然卫星：火星有两个天然卫星： 火卫一和火卫二，可能火卫一和火卫二，可能 是捕获的小行星。是捕获的小行星。 4

3、. It was reported by NASA in 2007 that there was_ on Mars. A. life B. salt C. water 20152015年年0303月月0606日，科学家称日，科学家称 火星表面曾非常湿润火星表面曾非常湿润 ，含，含 水量超过北冰洋。研究还发水量超过北冰洋。研究还发 现火星地表直到大约现火星地表直到大约1212亿年亿年 前还存在着大量的水体。前还存在着大量的水体。 5. After 7 months flight, the explorer _ landed on the Mars successfully on Nov 27,

4、2018. A. Opportunity（机遇号）（机遇号） B. Spirit （勇气号）（勇气号） C. InSight （洞察号）（洞察号） NASANASA今年今年5 5月发射的无人探月发射的无人探 测器测器“洞察号洞察号”于于1111月月2727日日 凌晨成功抵达火星登陆点，凌晨成功抵达火星登陆点， 并顺利传回首张照片。并顺利传回首张照片。 distance from the sun? color? shape? climate? temperature? oxygen? gravity? What do you know about Mars? diameter? 水星水星 （Me

5、rcury） 金星金星 （Venus） 地球地球 （Earth） 火星火星 （Mars） 木星木星 （Jupiter） 土星土星 （Saturn） 天王星天王星 （Uranus） 海王星海王星 （Neptune） solar system sul sistm Which one is Mars ? 1 Pre-reading Mars is the fourth planet from the sun in our solar system. Pre-reading Mars is named after Mars, the Roman god of war. Mars the Roman g

6、od of war 被命名被命名 罗马战神罗马战神 rumn 罗马 It is much smaller than the earth. Its diameter is 53% of the earths. da mi:t n. 直径直径 The gravity on its surface is about 40% as strong as it is on earth. So a person weighs 90 kilos on earth weighs only 36 kilos on Mars. grvti n. 引力，重力引力，重力 / wei / v. 称重称重 gggg hh

7、During spring and summer, the strong storms can cover the whole surface of Mars. n. 风暴，风暴， 暴风雨暴风雨 古罗马的古罗马的 上帝；神上帝；神 直径直径 风暴，暴风暴，暴(风风)雨雨 重力；引力重力；引力 重，有重，有重重 一般地，通常一般地，通常 (尤指长途尤指长途)旅行旅行 限制，限定限制，限定 激动；令人激动的事激动；令人激动的事 太阳系太阳系 Roman rm god d diameter daimit storm st:m gravity rviti weigh wei generally den

8、rli journey d:ni limit limit excitement iksaitmnt solar system sul 1a Read and understand. Which statements are true about Mars? Read the passage and check the answers. _ 1. Mars looks like a red ball. _ 2. The temperature on Mars is very high. _ 3. Mars is much larger than the earth. _ 4. Mars is t

9、oo far away for us to reach. T F F F Skimming for the topic sentence and the best title. 1.Can you find out the topic sentence ? What do you know about Mars? What does it look like? 2.Can you add to the passage ? “Mars” 中心句一般在开头或结尾中心句一般在开头或结尾;skimming 环节是在略读中了解文章的中心意思环节是在略读中了解文章的中心意思 While-reading S

10、canning for the numbers and find out what these numbers stand for? 53% 228 million 2/5 -138 - 28 0.13 % gravity oxygen diameter distance from the sun temperature While-reading Scanning scanning 环节是在跳读中寻找某环节是在跳读中寻找某 些特定信息；些特定信息； Mars is the fourth planet from the sun in our solar system and is named

11、after Mars, the Roman god of war. Its diameter is 53% as wide as that of the earth. Mars goes around the sun at a distance of about 228 million kilometers. name diameter distance 2. While-reading: careful reading-key words It looks like a red and orange ball. Its very beautiful. You can tell which p

12、lanet is Mars because it is bright red in the night sky. But during spring and summer, the surface of Mars is covered by strong storms. climate color shape 2. While-reading: careful reading-key words The gravity on the surface of Mars is about two-fifths as strong as it is on earth. So a person who

13、weighs 90 kilos on earth weighs only 36 kilos on Mars. The temperature on Mars is between -138C and 28C. The air has only 0.13% oxygen. air gravity temperature 2. While-reading: careful reading-key words While-reading Detail-reading. Write down the information about Mars. Diameter Color Shape Climat

14、e Gravity Distance from the sun 53% as wide as that of the earth red and orange a ball during spring and summer: strong storms temperature: between -138 and 28 about two-fifths as strong as it is on earth about 228 million kilometers What do you know about Mars? What does it look like? Mars is the f

15、ourth planet from the sun in our solar system and is named after Mars, the Roman god of war. Its diameter is of the earth. Mars goes around the sun at a distance of about 228 million kilometers. You can tell which planet is Mars because it is bright red in the night sky. It looks like a red and oran

16、ge ball. Its very beautiful. But during spring and summer, the surface of Mars is covered by strong storms. The gravity on the surface of Mars is about it is on earth. So a person who weighs 90 kilos on earth weighs only 36 kilos on Mars. The temperature Mars is between -138 and 28 . The air has onl

17、y 0.13% oxygen. It takes a spaceship about eight months to reach Mars from the earth when the two planets are closest to each other. Scientists are still searching for more information about Mars. 太阳系太阳系 被以被以命名命名 罗马战神罗马战神 地球直径的地球直径的53% 绕太阳运转绕太阳运转 距离距离/相隔相隔远远 在夜空中呈明红色在夜空中呈明红色 在春夏季期间在春夏季期间 被强风暴覆盖被强风暴覆

18、盖 火星表面引力火星表面引力 五分之二强五分之二强 重重90千克千克 离离最近最近 搜寻更多信息搜寻更多信息 solar system be named after the Roman god of war 53% as wide as the diameter of the earth go around the sun a distance of bright red the night sky during spring and summer be covered by strong storms the gravity the surface of Mars two-fifths we

19、igh 90 kilos be closest to more information Find and underline the following phrases 1. be named after 以以命名；按命名；按来命名来命名 中国的第一颗月球探测器以嫦娥命名。中国的第一颗月球探测器以嫦娥命名。 The first lunar probe in China _. name v. 命名命名, 说出名字说出名字 n.名字名字 他们给孩子起名叫尼克。他们给孩子起名叫尼克。 They named their child Nick. named 过去分词作定语过去分词作定语 我过去居住在一个

20、我过去居住在一个叫费尔蒙特的叫费尔蒙特的小山城。小山城。 I used to live in a small mountain town named Fairmont. was named after Change 2. at a distance of +数字数字 “相隔相隔远远” 月球在距地球月球在距地球38万千米的地方绕地球旋转万千米的地方绕地球旋转. The moon _ the earth _. at a distance of +数字数字+ from +某物某物/某地某地 “离某处离某处远的地方远的地方” 他把书桌放在离床一米的地方。他把书桌放在离床一米的地方。 He put th

21、e desk at a distance of one meter from the bed. 让这人站在离我大约让这人站在离我大约3米的地方米的地方. Ask the man to stand at a distance of about 3 meters from me. goes around at a distance of 380000 km. at+价格价格： They sell the rice at 5 yuan per kilo. at+速度速度： He drove at a speed of 90 kilometers per hour. at+时刻时刻： I usuall

22、y get up at 6 oclock. 3. tell 3. tell 辨别辨别, , 区别区别, ,认出认出 (与与can, could, be able to连用连用) 1）tell A from B 辨别辨别A和和B 我辨别不出她和她的双胞胎妹妹。我辨别不出她和她的双胞胎妹妹。 I cant tell her from her twin sister. 2）tell the differences between A and B: 我辨别不出这个词和那个词的区别。我辨别不出这个词和那个词的区别。 I cant tell the differences between this wor

23、d and that one. 3）tell +从句从句 我辨别不出哪个是对的。我辨别不出哪个是对的。 I cant tell which one is true. 告诉告诉 tell sb. to do tell sb. sth.=tell sth. to sb. 4. weigh v. weight n. weigh+重量重量 “重重” Judy重重50千克。千克。 Judy weighs 50 kilos. put on weight 体重增加体重增加 lose weight 减肥减肥 The students _(weigh/weight)80 kilos, so they decid

24、e to lose_(weigh/weight). weigh weight 5. search for + 寻找的目标寻找的目标 e.g. 他们整晚找那个失踪的男孩。他们整晚找那个失踪的男孩。 All night they searched for the lost boy. search+对象对象+for+寻找的目标寻找的目标 e.g. 她找了很多店为吉姆买礼物。她找了很多店为吉姆买礼物。 She searched many shops for Jims gift. 6 . 分数分数/百分数百分数/倍数倍数+as+adj./adv.原级原级+as e.g.那栋房子只有教学楼的那栋房子只有教

25、学楼的3/4那么高。那么高。 That house is only _the teaching building. 那个国家的人口有我们国家的那个国家的人口有我们国家的40%这么多。这么多。 The population of that country is _ that of our country. 这个房间是那个房间三倍大。这个房间是那个房间三倍大。 This room is _that one. 他跑起来有她的两倍快他跑起来有她的两倍快. He runs twice as fast as she. three fourths as tall as 40% as large as thr

26、ee times as big as Mars, the _ planet of the solar system , goes around the sun at a _ of about 228 million kilometers. Its _ is 53% as wide as that of the earth. It looks like a _ and _ball. Its very beautiful. But during _ and _, strong _ can cover the whole _of Mars. The gravity on the surface of

27、 it is about _ as _as it is on earth. fourth distance red orange spring summer storms surface two-fifthsstrong diameter Post-reading Finish the passage. 1.Does Mars have a good climate for plants ? 2.Is Mars a useful place to dry fruit ? 3.Is Mars a good place for human beings to live ? 4.Is Mars a

28、comfortable place for heavy people ? 1C Discuss the following crazy questions with your partner and state your reasons. v. 烘干，使烘干，使干燥干燥 Post-reading Discuss “What have we learnt about Mars?” and lets draw a mind map. Mars What does it look like? Is it a good place to live? Its diameter Distance from

29、 the sun colorshape A good climate? Proper temperature? Enough oxygen? Strong gravity? Writing practice: Mars 1. Its color and shape. 2. Its diameter and its distance from the sun. 3. Its climate. 4. Its temperature. 5.Its gravity. 6.Its oxygen. Body Beginning Ending What do you know about Mars? Is

30、it a good place for us to live? In my opinion, Mars is (not) a good place for us to live. Hi Kangkang, It has been two days_( since ,from) we landed on Mars. It _(cost, took) us more than two years to_ (reach, get) here. Generally, the journey went well, but the living conditions were _ ( quiet, qui

31、te) bad during the journey. We had to produce most of the food in the spaceship. _(Whats more, Whats worse), our water supplies were very low. We had to limit the use of water during _ (those, these) days. So we had a shower every six weeks. We will spend another seven hundred and sixty-three days o

32、n Mars. _ ( How, What )a long time! I often miss the family, but the excitement of being on Mars is worth it! Wish me luck! Yours, Uncle Stephen since took get/reach quite Whats worse those What 2 Kangkangs uncle sent an e-mail to him from Mars. Choose the right words to complete the letter. The jou

33、rney has gone very well. The journey has gone very well. Hi Kangkang, It has been two days since we landed on Mars. It took us more than two years to get here. Generally, the journey went well, but the living conditions were quite bad during the journey. We had to produce most of the food in the spa

34、ceship. Whats worse, our water supplies were very . We had to limit the use of water during those days. So we had a shower every six weeks. We will spend seven hundred and sixty-three days on Mars. What a long time! I often miss the family, but the excitement of being on Mars is worth it! Wish me lu

35、ck! 2c work alone generally speaking 总体来说总体来说 1. Its +一段时间一段时间+since 从句（一般过去时从句（一般过去时) =It has been+一段时间一段时间+since 从句（一般过去时从句（一般过去时) =一段时间一段时间+has passed +since 从句（一般过去时从句（一般过去时) 表示：自从表示：自从以来已经有多长时间了以来已经有多长时间了 e.g.自从他离开家乡以来已经有自从他离开家乡以来已经有10年了。年了。 Its ten years since he left his hometown. It has been

36、 ten years since he left his hometown. Ten years has passed since he left his hometown. It is six weeks since we had a proper shower. = Six weeks _ since we had a proper shower. =_six weeks since we had a proper shower. has passed It has been 2. 供给，补给，供应品供给，补给，供应品 v. supply sb. with sth.=supply sth.

37、 for sb. low / few / limited supplies 有限的供给有限的供给 3. limit v. 限制，减少限制，减少 我们要减少开支。我们要减少开支。 We should limit our spending. n. 限制限制 We can use the water without limit. 无限制地无限制地 limited adj. 有限的有限的 4. every six weeks 每三小时每三小时 每两个月每两个月 每十个人每十个人 奥运会每四年举办一次。奥运会每四年举办一次。 The Olympics are held every four years.

38、 5. excitement n. 兴奋，刺激，令人兴奋的事物兴奋，刺激，令人兴奋的事物 excited adj. （感到）兴奋的（感到）兴奋的(人人) exciting adj. 令人兴奋的（物）令人兴奋的（物） He was _about the _ news. The _ of winning the game made him awake all night. every three hours every two months every ten people excited exciting excitement 6. I often miss the family, but th

39、e excitement of being on Mars is worth it! (虽然虽然)我经常想念家人我经常想念家人, 但在火星探险所带来的兴奋但在火星探险所带来的兴奋 面前面前, 还是值得一试的还是值得一试的! worth的用法的用法: worth be worth it 有好处有好处, , 值得一干值得一干 e.g. The job needs a lot of hard work but its worth it. be worth doing 值得做某事值得做某事 e.g. The islands blue sea, white-sand beaches and the fo

40、rests are well worth seeing. be worth+钱钱 值值钱钱 e.g. Her new bike is worth 500 yuan. 大体说来大体说来 进展顺利进展顺利 更糟糕的是更糟糕的是 而且而且 有限的水供应有限的水供应 限制水的使用限制水的使用 淋浴淋浴 每六周每六周 的兴奋的兴奋 值得值得 祝某人好运祝某人好运 generally speaking go well whats worse whats more low water supplies limit the use of water have a shower every six weeks

41、the excitement of be worth sth./doing sth. wish sb. luck clothing food and drinks weather transportation 3a Write back an e-mail to Uncle Stephen for Kangkang and ask him for more information about Mars. The list may help you. Dear Uncle, Im very glad to receive your e-mail, and I know that the livi

42、ng conditions were quite bad during your journey. I am interested in the information about Mars. Can you tell me more about it ? How about the weather on Mars? Is it very cold? What kind of transportation do you use there? I am looking forward to your e-mail! Good luck! Yours, Kangkang You can write

43、 it like this : 3b. Work in pairs. Check your partners e-mail and use your knowledge of Mars to answer the questions for Uncle Stephen. 1. The temperature _ by computers because it is very_. 2. Lots of _ food _ in the greenhouse. 3. A kind of comfortable spacesuit _ by us _. will be controlled low h

44、ealthy will be planted will be used to wear 假设未来人类可能会移居到火星上。假设未来人类可能会移居到火星上。 请你根据你对火星的了解，描述一下请你根据你对火星的了解，描述一下 人类未来在火星上的生活场景。人类未来在火星上的生活场景。 思路：从火星的环境和衣食住行几个思路：从火星的环境和衣食住行几个 方面来谈。方面来谈。 时态及语态：一般将来时的被动语态。时态及语态：一般将来时的被动语态。 Our life on Mars In the future, we will live on Mars. The temperature. Lots of hea

45、lthy food. A kind of comfortable spacesuit . Many space stations. Schools, hospitals and shopping centers. Whats more, spaceships. Im looking forward to living there. . 根据语境从方框中选出恰当的单词填空，根据语境从方框中选出恰当的单词填空， 有的需要变换形式。有的需要变换形式。 1. My brother is much heavier than me. He _ about 80 kilograms. 2. To be a

46、greener person, youd better not drive a car for short _. excite, gravity, journey, generally, weigh, storm, diameter, limit weighs journeys 3. Dont take shelter under a tree when theres a(n) _. 4. The girl cried with _ when she met her old friend. 5. _ speaking, in our country there is more rain in the south than in the north in summer. excite, gravity, journey, generally, weigh, storm, diameter, limit storm excitement Generally 6. How big the circle is! Its _ is about 20 meters. 7. People in the spaceship h