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2019-2020仁爱科普英语九年级上
unit1topic2sectionc导学案
一单词填一填
根据句意及中文提示，写出单词：
1.He ________(提供) some wonderful advice.
2.It’s _________(自然的) to worry about our children.
3.The government has considered the ________ （环境的） problems already.
4.Team sports help to develop a child’s __________(社交的) skill.
5.The weather is bad today, but tomorrow it will even be ______(更糟的)。
二选择选一选
单项选择。

1）Choose the best answer.
1. _____ of the students are girls in our school.
A. Two fifth B. Two threes C. Two fifth s D. fifth two
2. The one-child policy has _____ controlling China’s population.
A. been good at B. done well in C. taken care of D. worked well in
3.Song Zuying is known _____ a great singer.
A. for B. as C. in D. on
4 ._____ your help, I made great progress in English.
A. Thanks for B. Thanks to C. Thank to D. Thank for
C,D,B,B
三重点攻一攻。

根据句意及中文提示，完成句子。(每空一词)
1.因为他来晚了，所以我们错过了火车。__________ ______ his being late, we missed the first bus.
2.我们必须采取措施阻止青少年吸烟,喝酒。We must _____ ______ ____stop teenagers from smoking and
drink.
3.李医生作为一名医生而出名。Mr.Li _______ _________ ________ a doctor.
4.这个办法在提高他的英语口语方面很有效。
This method has ________ ________ _______ improving his spoken English.
5.到目前为止，我学会了5000多个单词。
_______ _______,I ________ ________ more than 5000 words.
答案
一单词填一填
offered, natural,environmental,social, more

二选择选一选

C,D,B,B

三重点攻一攻。

1Because of;2 take measures to 3is famous as 4.worked well in 5. so far have learned



















































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(共31张PPT)
2019-2020仁爱科普英语九上Unit 1
The Changing World topic2sectionC精美课件
Lead in
学习目标：
1.继续学习现在完成时。 2.学习分数和百分数表达法。
3.继续讨论有关人口增长的问题，并引导学生树立正确的人口观念
reach v.实现；达到；够得着；到达 [ri?t?]
luckily adv.幸运地，运气好地 ['l?k?li]
policy n.政策，方针 [?p?l?si]
Russia n.俄罗斯 [?r???]
measure n.措施，方法 [?me??]
social adj.社会的；社交的 [?s???(?)l]
supply v.提供，供应n.供应量；供应 [s??pla?]
natural adj.天然的；天生的 ['n?t??r?l]
















New words

worse adj.更差的,更糟的adv.更差,更糟 [w??s]
What’s worse！ 更糟糕的是 　
so far 到目前为止 　
government n.政府，内阁 [?ɡ?v?nm?nt]
thanks to sb./sth. 幸亏，由于 　
paragraph n.段；段落 [?p?r?ɡrɑ?f]
opportunity n.机会，时机 [ /??p??tju?n?ti ]
newborn adj.新生的，初生的 　/[nju?'b??n/













percent n.百分之······ [p??sent]
offer v.提供（东西或机会）；主动提出 ['??f?]
surround v.围绕，环绕 [s??ra?nd]
garbage n.（生活）垃圾，废物，垃圾场 [?ɡɑ?b?d?]
discourage v.阻拦，阻止；使灰心 [d??sk?r?d?]
local adj.当地的，本地的 [?l??k(?)l]












8
88
888
8,888
88,888
888,888
8,888,888
88,888,888
888,888,888
8,888,888,888
88,888,888,888
888,888,888,888
Tongue twister
Let’s review
The population in developing countries is ________ than that in developed countries.
Which country has the largest population?
What’s the population of China?
larger
1a 1. Before you read the passage, discuss the
questions with your partner.
1) Why does China carry out the one-child policy?
2) What social problems do you think China’s large
population has caused?


1a Read and understand.
2. Write the title of the passage.
1b Read 1a and match the main idea with each paragraph.

1. _____ Paragraph 1 A. the measures to deal with the
problems
2. _____ Paragraph 2 B. the world’s and Asia’s population
3. _____ Paragraph 3 C. the problems caused by large
population
Population Problems
B
C
A
1c Read 1a again and complete the table.
Population of China ____________________
Social problem less ______________
fewer _______ opportunities
less _______ and ______
crowded ________
heavy _________
________ natural environments
Government measure _____________________
1.37 billion
job
water
energy
cities
traffic
worse
the one-child policy and others
living space
Exercise
Read Paragraph 1 and fill in the blanks.
Asia has a population of _____________. That’s to say, almost ______ of the people in the world live in Asia now.
more than 3 billion
half
Paragraph 1
The world’s and Asia’s population.
Drills
3 billion÷ 7.2 billion≈1／2
(half)
50 percent (50%)
Almost half of the people in the world live in Asia.
1.37 billion÷7.2 billion≈1 ／ 5


20 percent (20%)
About one fifth of the people in the world live in China.


one
What social problems has it caused
Paragraph 2
The problems caused by large population.
fifth
Because of the large population,
there is __________________ for each family.
Read Paragraph 2 and fill in the blanks
less living space
Because of the large population,
it is difficult for lots of people ______________.
to find jobs
Because of the large population,
it is hard for China to supply _______ and ______ to satisfy people’s daily needs.
energy water
Because of the large population,
most cities are ______________ than before, and the traffic is much __________.
more crowded
heavier
Because of the large population,
natural environments are becoming _______
_____________.
worse
and worse
The one-child policy
— Every couple can have only one child.
So far, the one-child policy worked well in controlling China’s population.
We still have a long way to go.
Paragraph 3
The measures to deal with the problems.
one sixth


one ninth


one twentieth

five sixths


two ninths



seven twentieths


Language points
点拨：分数表达口诀：分子基数词，分母序数词，分子大于一，分母用复数。
one / a half
a quarter
three quarters
three and a half

past



now

so far
So far, I have read five English novels .
点拨：so far 到目前为止, 常用于现在完成时时态。
1a Listen，look and say.
P13-1a视频
Every minute, about 261 babies are born in the world. That means people have to _____ food for about 375 840 newborn babies every day. The world’s population _______________ very fast. It has _______ one of the biggest social problems today.
China ______ the largest population in the world. There are about 1.37 billion people in China. It has ________ 20 percent of the world’s population. China has ____________ some policies to solve the population problem, and these policies have _______ well. But China still _______ a serious population problem.
2 Complete the following passage with the correct forms
of the given words or phrases.
find
grows/ is growing
become
carried out
reached

grow reach have find work become face carry out
has
worked
faces
Exercise
3a Work in groups and search for the information
about the following questions. Then share your
idea with your group members.
1. How do you think we can get more living space?
2. What should the government do to offer more
job opportunities?
3. The energy and water is less and less. What
should we do to deal with it?
4. The traffic in cities is much heavier than before.
How can we solve the problem?
3b Write a short passage of three paragraphs based on 3a.
One possible version:
China has the largest population in the world. It has caused many problems. Everyone should do something to solve them.
First, the government shouldcarry out some policies to control the increasing population, and practice the reform and opening-up to develop our economy. Only in this way can we get more jobs and improve our living conditions.
Second, the energy and water is becoming less and less. We’d better save them as much as possible, and try to find more new energy. In order to solve the problem of heavy traffic, we call on everyone to take a bus or walk as often as possible.
Choose the best answer.
1. _____ of the students are boys in our school.
A. Two third B. Two threes
C. Two thirds D. Second three
2. The one-child policy has _____ controlling China’s
population.
A. been good at B. done well in
C. taken care of D. worked well in
3. Edison is known _____ a great inventor.
A. for B. as C. in D. on
4 ._____ your help, I made great progress in math.
A. Thanks for B. Thanks to
C. Thank to D. Thank for
C
D
B
B
Exercises
We learn:
1. Read the fractions in English.
2. Talk about population problems.
We can:
1. Some words:
social, supply, natural, worse, government,
paragraph, opportunity, newborn, percent, offer
2. Some phrases:
half of, one fifth, because of, satisfy people’s daily
needs, so far, take measures to do, be known as,
work well in, thanks to
3. Some sentences:
We still have a long way to go.
Summary
2. Write the composition
in 3b.
1. Read 1a aloud.
3. Finish Section C in
your workbook.
4. Preview Section D.
Homework
Thank you.
谢谢
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