九年级Unit4Topic3S.ppt

Check your homework,Marias pet dog should be taken to pet hospital. 2.We decide to study hard to make our dreams come true . 3. The film is based on a science fiction . 4.I dont think it will rain tomorrow . 5.We will wait for you till twelve oclock .,Unit 4 Amazing Science,Section C,Topic 3 What do you know about Mars?,The Roman god of war 罗马战神,1. Do in Rome as the Romans do . 2. All roads lead to Rome.,Solar system 太阳系,冥王星（Pluto）,水星（Mercury）,金星（Venus）,地球（Earth）,火星（Mars）,木星（Jupiter）,土星（Saturn）,天王星（Uranus）,海王星（Neptune）,慧星（Comet）,Do you know their names?,Solar system,Mars is the fourth planet from the sun in our solar system and is named after Mars, the Roman god of war.,圆圈被直径分成两半。 A circle is divided into two halves by diameter.,storm 暴风(雨),But during spring and summer, strong storms can cover the whole surface of Mars.,What does Mars look like? Whats the weather like on Mars? Compare the gravity on Mars with that on the earth. Whats the temperature on Mars? How far is Mars from the sun?,Pre-reading questions,1a Read and understand,1b Work alone,Diameter: _ Color: _ Shape: _ Climate: _ _ Gravity: _ Distance from the sun: _ _,Read 1a again and write down the information about Mars.,It is 53% as wide as that of the earth.,It is red and orange.,It looks like a ball.,During spring and summer, strong storms can cover the whole surface of Mars.The temperature is between -138 and 28.,It is about two-fifths as strong as it is on earth.,Mars goes around the sun,at a distance of about 228 million kilometers.,Language Points,1.name sb./sth. after sb 以的名字给取名 我们以李小龙的名字给这个婴儿取名。 We named the baby after Bruce Lee . （被动）The baby was named after Bruce Lee. 他们以他父亲的名字给这个学校命名。 They named the school after his father . (被动）The school was named after his father .,2.two-fifths as strong as 相当于无分之二的强度 倍数的表示：倍数+as +形容词或副词的原级+as 像的一半那样大 half as big as 像两倍那样长 twice as long as 这个盒子是那个盒子的四倍重。 The box is four times as heavy as that one . e.g. 这个城市的人口是那个城市的两倍。 The population of this city is twice as large as that city.,请根据汉语意思完成下列句子（每空一词）。 1. 这个包是那个包的两倍重。 This bag is _ _ _ _ that one. 2. 新楼是旧楼的四倍大。 The new building is _ _ _ _ _ the old one. 3. 中山大街有健康大街的70%长。 Zhongshan Street is _ _ _ _ Jiankang Street.,twice as heavy as,four times as big as,70% as long as,Your apple is about _ mine. A. second threes as big B. two threes as big as C. two thirds as big as D. second thirds as big as,C,3.go around the sun 绕着太阳转 4. at a distance 在远处 at a distance of 相隔 警察在远处跟踪他。 The police followed him at a distance. 月球在距地球38万千米的地方绕地球转。 The moon goes around the earth at a distance of 380 000 km.,You can tell which planet is Mars . 5.tell 辨别，区别，认出 天太黑了，我没有认出是你。 It was so dard that I couldnt tell it was you . 6. cover the whole surface of Mars 覆盖整个火星的表面 7 .between -138 and 28 读作：between minus one hundred and thirty-eight degrees celsius and twenty-eight degrees celsius .,8.be close to 与靠近 9.each other 互相 10. search for 搜索 search是搜寻某个地方或人，指的是搜索的客体的媒介。 search for后面加具体的客体。 如： 1、他翻遍了自己的口袋，什么也没找到。 He searched his pockets, but found nothing. 2、他翻遍了自己的口袋找钥匙。 He searched his pockets for his keys. 我们搜遍了整个森林找那个小女孩。 3、We searched the whole forest for the girl.,1C Pair work,Discuss the following crazy questions with your partner and state your reasons. Does Mars have a good climate for plants ? Is Mars a useful place to dry fruit ? Is Mars a good place for human beings to live ? Is Mars a comfortable place for heavy people ?,K,The journey has gone very well.,BernhardFashion BT,Hi Kangkang, It has been two days since we landed on Mars. It took us more than_ _ to get here. Generally, the journey went well, but the living _ were quite bad during the journey. We had to _ most of the food in the spaceship. Whats worse, our water supplies were very_ . We had to limit the use of water during those days. It is six weeks since we had a proper_ . Seven hundred and sixty-three dayswhat a long time! I often _ the family, but the excitement of being on Mars is worth it! Good Luck! Yours, Uncle Stephen,Listen to the tape and complete it.,two,years,conditions,produce,shower,low,miss,（录音）,Read again and mark True (T) or False (F).,( )1. Its been five days since they landed on Mars. ( )2. It took them three years to get to Mars. ( )3.They had lots of food and water in the spaceship. ( )4. They have been away from the earth for 763 days. ( )5. The excitement and risks on Mars are worth it.,F,F,F,T,T,Language Points,It has been two days since we landed on Mars. 我们到达火星已经两天了。 句式： 11.It is/has been +一段时间+since +一般过去时从句 =一段时间+ has passed since + 一般过去时从句 自从到现在已经多长时间了， 我来一中已经三年了。 It has been three years since I came to No.1 High School. = Three years have passed since I came to No.1 High School.,即时演练 1. My father fell asleep half an hour ago. (改为同义句) It _ half an hour _ my father fell asleep. 2. It has been two days since I arrived here. (对划线部分提问) _ _ _ _ _ since you arrived here?,is since,How long has it been,3. 他们做完作业已经有两小时了。(翻译成英语) It _ _ two hours since they _ their homework. 4. 你戒烟有多长时间了？(翻译成英语) _ _ is it since you _ _?,has been,finished,How long,stopped smoking,2. It took us more than It takes/took sb. time to do sth. 做某事花了某人多少时间,3. generally = in general 大体上，总的来说,4. go (very) well: 进展顺利,5. Whats worse 更糟糕的是 Whats more 而且,6. limit v. 限制、减少 limit the use of sth. 限制/减少 用 limit n. 限制，有限 We can use the water without limit. 我们可以无限制地使用水。,7. excitement n. 兴奋，刺激； excite v. 兴奋，激动 excited adj. 兴奋的，感兴趣的（指人） exciting adj. 令人兴奋的，使人激动的 （指物）。 Are you excited about the exciting news? 你为那个激动人心的消息而兴奋吗？,8. being on Mars is worth it! be worth+money. 值钱; 值得; be (well) worth doing sth. 值得做某事 be worth+ sth有好处，值得做; 那本书值100美元。 That book is worth 100 dollars. 那个地方很值得一参观。 The place is well worth visiting. （注意：这里well不能用very代替） 这事值得我们付出劳动。 It is worth our work.,单选题。 ( ) 1. What does it _? A ball. A. color B. shape C. look like D. like,要点回顾,( ) 2. Is Mars bigger than the earth? No, Its about _ the earth? A. as big as B. as bigger as C. the same big as D. a quarter as big as,( ) 3.“2/5” in English is _. A. two fifths B. second five C. two five D. second fifth,( ) 4. If an elephant weighs 1200 kilos on the earth, it weighs _. on the Mars. A. 2400 kilos B. 400 kilos C. 500 kilos D. 800 kilos,( ) 5. What time do you _ Nanning? A. reach to B. get C. arrive D. reach,请借助所给短语将下列句子译成英语。 1. 我昨天起床晚了，更糟糕的是，上学路上自行车坏了。(whats worse),I got up late yesterday. Whats worse, my bike was broken on the way to school.,3. 火星是以罗马战神的名字命名的。(name after) 4. 这本书是那本书的一半大。(as . as),Mars was named after the Roman god of war.,The book is half as big as that one.,I spent a lot of money buying the cellphone. But it was worth it.,2. 这部手机花了我很多钱，但确实物有所值。(be worth it),5. 太阳系有八大行星。(solar system) 6. 老虎很危险，我们可以在离它200米 远的地方观看它。(at a distance of),There are eight planets in solar sys