科普仁爱英语九上Unit 1 Topic2 The population in developing countries is growing faster Section B课件13张

课件13张PPT。Section BUnit 1 The Changing WorldTopic 2 The population in developing countries is growing faster.please read the numbers,please.543.7
five hundred and forty-three point seven
1 562
one thousand, five hundred and sixty-two
6 004 001
six million, four thousand and one
7 198 764 502
seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and two【课前预习，探索新知】
一·单词互译与记忆?
(1).population?n.____________????
(2).(使)增加，增__________??
(3).?billion?num.?___________???
(4).reach?v.__________????
(5)·政策.方针____________??????
(6)?幸运地?___________???
二·读1a找到下列短语? ??????
1)一份有关人口的报告________________??
2).68亿人口____________________????????????
3).增加了__________________________???
4).美国的人口___________________?
5).发展中国家___________________????
6).发达国家____________________________????????
7).另外_____________________________??????
8).人口问题__________________________?
9).执行____________________人口，人数十亿实现，到达increase v.policy n.luckily adv.a report on populationa population of 6.8 billionincrease bythe population of the U.S.Adeveloping countriesdeveloped countriesWhat`s morethe population problemcarry out ---China has a population of 1.3 billion.---What's the population of China?=It's 1.3billion.The population in developing countries is larger than that in developed countries.China has the largest population. and India is second with 1.1 billion.6.8
billion80
millon80
million80
millionThe population is increasing by 80 million every year. 6.8
billionincrease by + 数字 / 倍数 / 百分数 增加了
increase to +数字 增加到……
e.g. The price of the house has increased
by three times.
e.g. The price of the house has increased
to 500 000.
Luckily,China has already carried out the one-child policy to control the population. The population problem has become more serious in developing countries. What should we do???实施，执行Wow, what a large population!1b Listen to 1a and match the information.1c Read 1a and fill in the blanks. The world has a population of 6.8 billion and it is increasing by __________ every year. _______ has the largest population. It has already reached __________ and India is _________ with 1.1 billion. The population in developing countries is ______ and is growing ________ than that in developed countries. Luckily, our country has carried out the ___________ policy to control the population.80 millionChina1.3 billionsecondlargerfasterone-childChoose the best answer.
1. — ______ is the population of Russia?
— 143 million.
A. How much B. How many
C. What D. How
2. There are ______ students in our school.
A. three thousands B. three thousands of
C. three thousand of D. three thousand
3. The population of China is ______ than that of
Japan.
A. larger B. more
C. fewer D. lessCDAExercisesChoose the best answer.
4.The weather in the north is colder than ______ in the south in China?
A. this B. that
C. it D. /
5.The price of the book has increased ______
twice.
A. by B. to C. with D.at
BExercisesAsummaryWe learn:1. Read numbers in English.
2. Talk about population problems.We can:1. Some words:
population, billion, increase, reach, luckily, policy
2. Some phrases:
increase by, developing countries, developed
countries, carry out, the one-child policy
3. Some sentences:
What's the population of China?
What a large population!
The world has a population of 6.8 billion.
Homework2. Read the numbers in
Part 2 on P12.1. Read 1a aloud.3. Finish Section B in
your workbook.4. Preview Section C.Thank you.