仁爱科普版九年级上册Unit 1 The Changing WorldTopic 2 The population in developing countries is growing faster.

这是一份仁爱科普版九年级上册Unit 1 The Changing WorldTopic 2 The population in developing countries is growing faster.一等奖课件ppt，共27页。PPT课件主要包含了今日头条，Word bank，Work on 1b，Work on 2，Work on 1a，Work on 1c，Work on 3等内容，欢迎下载使用。

1. Sme wrds: ppulatin, billin, increase, reach, luckily, plicy, Russia, measure2. Sme phrases: increase by, develping cuntries, develped cuntries, carry ut, the ne-child plicy3. Sme sentences: What a large ppulatin! The wrld has a ppulatin f 7.2 billin. S it is.
The wrld has a ppulatin f 7.2 billin.And it is increasing by 90 millin every year.Russia has reached 143 millin.Luckily,it has taken sme measures t slve the prblem.
ppulatin [ˌpɒpjʊˈleɪʃən] n.人口
billin['bɪljən]num．十亿
increase[ɪn'kriːs]v.(使)增加
Russia[ˈrʌʃə]n.俄罗斯
reach [riːtʃ] v.实现；达到；
luckily['lʌkɪli]adv.幸运地
measure[ˈmeʒə]n.措施，方法
ppulatin [ˌpɒpjʊˈleɪʃən] n.人口
billin['bɪljən] num．十亿
increase[ɪn'kriːs] v.(使)增加
Russia[ˈrʌʃə] n.俄罗斯
luckily['lʌkɪli] adv.幸运地
reach [riːtʃ] v.实现；达到；
measure[ˈmeʒə] n.措施，方法
plicy[ˈpɒlɪsi] n.政策，方针
play a game
Lk and guess
Listen t 1a and match the infrmatin.
1. the wrld 2. China 3. India 4. the USA
A. 321 millin B.7.2 billin C. 1.37 billin D. 1.31 billin
Listen and read the numbers, paying special attentin t the intnatin. Then read the ther numbers with yur partner.
1 0 0 0 0 0 0 0 0 0
1 , 0 0 0 , 0 0 0 , 0 0 0
543.7five hundred and frty-three pint seven 1 562ne thusand, five hundred and sixty-tw6 004 001six millin, fur thusand and ne7 198 764 502seven billin, ne hundred and ninety-eight millin, seven hundred and sixty-fur thusand, five hundred and tw
973nine hundred and seventy-three3 980three thusand , nine hundred and eighty98 721ninety-eight thusand , seven hundred and twenty-ne768 540seven hundred and sixty-eight thusand , five hundred and frty
2 346 780tw millin, three hundred and frty-six thusand, seven hundred and eighty82 346 580eighty-tw millin, three hundred and frty-six thusand, five hundred and eighty405 000 000fur hundred and five millin5 555 555 555five billin, five hundred and fifty-five millin, five hundred and fifty-five thusand, five hundred and fifty-five
Make similar cnversatins after the example.
Example:A.: What’s the ppulatin f the wrld?B: It’s abut 7.2 billin.
What’s the ppulatin f
Listen again and fill in the blanks.
(Kangkang is reading a reprt n ppulatin in the newspaper)Kangkang: Ww! What a large(1) !Maria:What?Kangkang: Lk, it says the wrld has a ppulatin f 7 .2 (2) . Andit is (3) by 90 millin every year.Maria:Mmm, that's really a lt. Which cuntry has the largest ppulatin? Kangkang: China has the largest ppulatin.
It has already (4) 1.37 billin, and India is secnd with 1.31 billin.Maria:What's the ppulatin f the USA?Kangkang: 321 millin.Maria:Oh, I see. It shws that the ppulatin in (5) cuntries is larger than that in develped cuntries,desn't it?Kangkang: Yes. What's mre, the ppulatin in develping cuntries is grwing faster.
Maria:S it is. The ppulatin prblem has becme mre serius in develping cuntrics.Kangkang: (6) , China has already carried ut the ne-child (7) t cntrl the ppulatin.
Language pints
increase by 增加了 increase t 增加到
(Kangkang is reading a reprt n ppulatin in the newspaper)Kangkang: Ww! What a large(1) !Maria:What?Kangkang: Lk, it says the wrld has a ppulatin f 7.2 (2) . And it is (3) by 90 millin every year.Maria:Mmm, that's really a lt. Which cuntry has the largest ppulatin? Kangkang: China has the largest ppulatin.
S +主语+ be/情态动词/助动词 的确如此
carry ut 执行，实施
s +主语+ be/情态动词/助动词 的确如此
The supermarket is very crwded.
Lucy dances very well.
Play a game
Read 1a and fill in the blanks.
The wrld has a ppulatin f 7.2 billin and it is increasing by __________ every year. _______ has the largest ppulatin. It has already reached __________ and India is _________ with 1.31 billin. The ppulatin in develping cuntries is ______ and is grwing ________ than that in develped cuntries. Luckily, ur cuntry has carried ut sme plicies t ______the ppulatin.
1.37 billin
Wrk in grups and discuss the ppulatin f the wrld. The fllwing chart and questins may help yu.
1. Which f these 5 cuntries has the largest/smallest ppulatin? What’s the ppulatin f it?
China has the largest ppulatin. The ppulatin f China is 1.37 billin. Canada has the smallest ppulatin. The ppulatin f Canada is 35 millin.
2. What can yu tell frm the ppulatin in develping cuntries and in develped cuntries?
The ppulatin in develping cuntries is larger than that in develped cuntries.
3. What prblems des the large ppulatin cause?
The large ppulatin may cause less living space, mre pllutin and s n.
4. What measures d yu think shuld be taken t slve the ppulatin prblem?
Chse the best answer.
1. — ______ is the ppulatin f Russia? — 143 millin. A. Hw much B. Hw many C. What D. Hw2. There are ______ students in ur schl. A. three thusands B. three thusands f C. three thusand f D. three thusand 3. — Jenny always helps thers. — ______. A. S is she B. S she is C. S des she D. S she des4. The ppulatin f China is ______ than that f Japan. A. larger B. mre C. fewer D. less