牛津譯林版九年級(jí)下Unit4Reading2課件(共20張PPT)

1、Pre-task Task 1 Revision A: Answer the following questions about the life on Mars.1. When will people move to the planet Mars?2. Why will we leave our own planet Earth ?3. How long does the spacecraft need to get to Mars at present ?4. How long does the spacecraft need to get to Mars in the future ?

2、5. What would food on Mars be like?By the year 2100.Because Earth is becoming more and more crowded and polluted.It takes months.About 20 minutes.Food would probably be in the form of pills and would not be so tasty.6. What will be a problem for people on Mars ?7. How can people prevent this problem

3、 ?8. What are the advantages for people on Mars ?9.Which school would the students study at?10. Where should the students connect their computers ?Gravity.People will have to wear special boots to prevent themselves from floating off into space.a. More space b. More time to relax c. No school.They w

4、ould study at online schools withe-teachers.They should connect their computers to an interplanetary network.Revision B: Fill in the blanks with proper words. Our own planet , earth , is becoming more and more _ and _. Hopefully, we can build a better world on _ by the year 2100. At present , our sp

5、acecraft are too slow to carry large numbers of _ to Mars. By 2100, the _might take only 20 minutes in spacecraft that travel at the speed of light. Food on Mars would probably be in the _ of pills and wound not be so _ as that on the Earth. Gravity could be another problem for people on Mars. The g

6、ravity on Mars is only about_ of that on the Earth . People on Mars have to wear special_ to prevent themselves from_off into the space.crowdedpollutedMarspassengersformjourneytastythree-eighthsbootsfloatingTask1: : Language points. While-task1.Our own planet, the Earth, is becoming more and more cr

7、owded and polluted.more and more crowded 越來(lái)越擁擠越來(lái)越擁擠more, most 放在多音節(jié)形容詞、副詞前面，幫助構(gòu)放在多音節(jié)形容詞、副詞前面，幫助構(gòu)成比較級(jí)和最高級(jí)。成比較級(jí)和最高級(jí)。如：如：more beautiful, most slowly這里，這里，more and more 用來(lái)加強(qiáng)程度，表示越來(lái)越用來(lái)加強(qiáng)程度，表示越來(lái)越怎么樣。相當(dāng)于：怎么樣。相當(dāng)于：more crowded and more crowded而短形容詞則這樣構(gòu)成：而短形容詞則這樣構(gòu)成：bigger and bigger 越來(lái)越年輕越來(lái)越年輕 越來(lái)越快越來(lái)越快越來(lái)越聰明越來(lái)

8、越聰明越來(lái)越細(xì)心越來(lái)越細(xì)心越來(lái)越好越來(lái)越好越來(lái)越舒服越來(lái)越舒服 At the moment , I want you to say a sentence to praise(贊揚(yáng)贊揚(yáng)) your partner or your best friend with the “ “comparative + comparative ” ”.comparative + comparative 越來(lái)越越來(lái)越y(tǒng)ounger and younger faster and faster clever and clever more and more carefulbetter and better more

9、and more comfortablecrowded用作形容詞，意為用作形容詞，意為“擁擠的擁擠的”。be crowded with意為意為“充滿(mǎn)，擠滿(mǎn)充滿(mǎn)，擠滿(mǎn)”。如：。如：The room was crowded with guests. 房間里擠滿(mǎn)了客人。房間里擠滿(mǎn)了客人。根據(jù)漢語(yǔ)意思完成句子。根據(jù)漢語(yǔ)意思完成句子。1. The bus was so _ (擁擠的擁擠的) that I didnt get on it.2. As we get nearer, the image becomes _ (越來(lái)越大越來(lái)越大). crowdedbigger and bigger2. At pr

10、esent, our spacecraft are too slow to carry large numbers of people to Mars.(1).too +adj.+ to do Sandy 太小了而不能去上學(xué)。太小了而不能去上學(xué)。Sandy is too young to go to school. so . that .can t .Sandy is so young that she can t go to school. adj. +enough to do .Sandy is not old enough to go to school.=It s time for y

11、ou to make sentences with the sentence structures above.large numbers of 許多，大量，許多，大量，修飾修飾_名詞，做主語(yǔ)時(shí)，名詞，做主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常用謂語(yǔ)動(dòng)詞常用_形式，相當(dāng)于形式，相當(dāng)于a lot of, many。eg. Large numbers of birds fly to the south every winter.(2) large numbers of . manythe number of 的數(shù)目的數(shù)目 后常接可數(shù)名詞復(fù)數(shù)，做主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常用后常接可數(shù)名詞復(fù)數(shù)，做主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常用單數(shù)單數(shù)形式。

12、形式。(1)China has _ of people.(2) _ of the population of china is 1.3 million.(3) _ my friends came to my birthday party.a (large) number The number A number of=可數(shù)可數(shù)復(fù)數(shù)復(fù)數(shù)eg.The number of tourists starts to tail off in October. 游客在十月份開(kāi)始逐漸減少。游客在十月份開(kāi)始逐漸減少。3. By the year 2100, the journey might only take a

13、bout 20 minutes in spacecraft that travel at the speed of light.光的速度是光的速度是300,000,000 米每米每(per)秒秒.汽車(chē)正高速行駛。汽車(chē)正高速行駛。我們要全速前進(jìn)。我們要全速前進(jìn)。The speed of the light is 300,000,000 meter per second.The cars are driving at high speed.We should move at full speed.at the speed of() 4. The gravity on Mars is only ab

14、out three-eighths of that on Earth.Three-eighths 八分之三八分之三分?jǐn)?shù)在英語(yǔ)中通常是借助于基數(shù)詞和序分?jǐn)?shù)在英語(yǔ)中通常是借助于基數(shù)詞和序數(shù)詞來(lái)共同表達(dá)的。其中基數(shù)詞表示分?jǐn)?shù)詞來(lái)共同表達(dá)的。其中基數(shù)詞表示分子，序數(shù)詞表示分母。如：子，序數(shù)詞表示分母。如：one-tenth 十分之一十分之一a third 三分之一三分之一注意：分子除用注意：分子除用one外，也可用外，也可用a；two thirds 三分之二三分之二four fifths 五分之四五分之四但是，但是，1/2不能說(shuō)不能說(shuō)a (one) second, 而而要說(shuō)要說(shuō) a (one) hal

15、f。1/4和和3/4可以說(shuō)可以說(shuō) a (one) fourth 和和 three fourths, 但常用但常用a quarter 和和 three quarters表示。表示。如果分子大于如果分子大于1， 分母要用復(fù)數(shù)形式。分母要用復(fù)數(shù)形式。如：如： 選擇題。選擇題。About _ of the students are from foreign countries. (2011山東東營(yíng)山東東營(yíng))A. three four B. three fourthC. third fourth D. three fourths翻譯句子。翻譯句子。我們班五分之三是女生。我們班五分之三是女生。_ the

16、students in my class_ girls.Three-fifths ofare5.Compared with life on Earth, life on Mars will be better in many pare: examine people or things to see how they are similar and how they are different (v. 比較，對(duì)比比較，對(duì)比)We carefully compared the first report with the second.我們仔細(xì)的對(duì)第一份報(bào)告和第二份報(bào)告我們仔細(xì)的對(duì)第一份報(bào)告和第二

17、份報(bào)告進(jìn)行了對(duì)比。進(jìn)行了對(duì)比。compare with 把把相比較相比較 拓展：拓展：compare . to 意為意為“把把比作比作”。Shakespeare compared the world to a stage.莎士比亞把人世比作舞臺(tái)。莎士比亞把人世比作舞臺(tái)。 用用compare with 和和 compare to 的正確形式填空。的正確形式填空。1. He cannot _ Shakespeare as a writer of tragedies.2. You cannot _ this war _ the Vietnam war (越南戰(zhàn)爭(zhēng)越南戰(zhàn)爭(zhēng)).compare withc

18、ompare to6.Life on Mars would be better in some ways.在很多方面我們都做的很好。在很多方面我們都做的很好。We did well in many ways.in some ways; in many ways; by the way (1). _, do you know how to get to Xishanqiao school?(2). You are very clever, you are right _. (3). It is a good idea to work alone _.By the wayin many waysi

19、n some ways7.Food would most probably be in the form of pills and would not be so tasty.as + adj. / adv. + asAmy 和和sandy 一樣苗條。一樣苗條。Amy 跳舞沒(méi)有跳舞沒(méi)有Sandy跳得優(yōu)美。跳得優(yōu)美。Amy is as slim as Sandy.Amy doesn t dance as/so beautifully as Sandy.not as / so + adj. / adv.+ asin the form of 以以形式形式life on Mars Not crowde

20、d/polluted Have more space Robots will do our work. Students will study at home. People will have more time to relax. People will wear special designed boots. No traffic jam Low gravity Food doesnt taste good Travel will make people feel sick. Money is not important Far away from friends on Earth Ad

21、vantagesDisadvantagesTask 2 : : Every group , please give a report.Task3 : : Do More exercises.A.Translate the following phrases.1.以光速運(yùn)行以光速運(yùn)行 _ 2.在很多方面在很多方面 _3.飄進(jìn)太空飄進(jìn)太空 _ 4.現(xiàn)在，目前現(xiàn)在，目前 _pare with _ 6.large numbers of _travel at the speed of light in many waysfloat off into space at present與與比較比較許多的，許多的， 大量的大量的B. Fill in the blanks with the correct forms of the words in the brackets1.We had a _ meal with he