仁爱版九年级英语上册Unit2Topic2课件(共62张)

problems and effects
Part 1
How long have we lived on the earth?
35,000 years
4.6 billion years old How old is the earth?
Has our planet changed a lot?
Yes
E. More carbon dioxide sentence.
pollute the air;
become deserts; have health
disappear
problems
pollute land and water; be dead
fewer trees traffic pollution factory pollution
effects
We can find the effects of other environmental problems in this way.
Thank you
/‘ka: bən dai’a: ksaid/ 二氧化碳
CO2 carbon dioxide increase a lot, form a “blanket”, the heat from the sun can’t escape
/ ‘blæŋkit/ 毛毯
Paragraph 2
problems
A__l_l_o__v_e__r__th__e__w__o__r_ld__,__p_e__o_p__le___h_a__v_e___c_u__t_d__o_w__n___m__i_ll_io__n__s__o_f t_r_e__e_s__._W___h__e_n__i_t__r_a_i_n_s__o__r__w__h_e__n__t_h__e__w__i_n_d__b__l_o_w__s__,_t_h__e__e_a__r_t_h_ i_s__t_a__k_e__n__a__w__a_y_._ F__o_re_s_t_s_h_a_v_e_b_e_c_o_m__e_d_e_s_e_r_ts_,_s_o__m_a_n_y_ _k_in_d_s_o_f_a_n_i_m_a_l_s_a_n_d__p_la_n_ts__a_re__d_is_a_p_p_e_a_r_in_g_.___

Because China has become the world's largest producer and user of coal.
3. What should students do and not do to protect the environment?
We shouldn’t leave rubbish here and there. Don’t spit anywhere in public. Don’t walk on grass or pick flowers. Everyone should care for wild animals and plant more trees.
1b Listen to 1a and number the following pictures.
2
3
4
1
5
Read 1a and Answer the questions.
1. What is Michael doing now?
He is reading an article.
2. Why is air pollution a serious problem in China?
•Homework:
• (1) Copy the new words . • (2) Make a speech about protecting our
environment. • (3)Preview Section C.
Thank you!
可用于各种句式
下面的题你会做吗？
I have __B__ to tell you.
A.important something
B. something important

吐 __________________
2 5.
② Don’t spit anywhere in public.
3
4
_______anywhere
④We should do everything we can to protect the environment.
可能____________ 12.
没什么严重的东西 _n__o_t_h_i_n_g__s_e_r_io_u__s____
Eg：今天的报纸上有一些有趣的事。 There is _s_o_m_e_t_h_in__g _in_t_e_r_e_s_ti_n_gin today’s
3. None of us likes pollution.
默写本课有关单词及词组后对号批改。
1.用户 ___u__s_e_r _______ 2.没有一个 _n_o_n_e_________
3.垃圾____r_u_b_b_is_h______ 4.吐 ______s_p_i_t _________ We must do something to stop the river from ______ too dirty.
thing
body
one
where
some any
something somebody
somewhere
someone
anybody
anywhere
anything
anyone
everyห้องสมุดไป่ตู้no
everything
everyone
everybody
everywhere
nothing
nobody none nowhere

_b_e_e_s_a_n_d__b_u_t_te_r_f_li_e_s_d_a_n_c_i_n.g ___w_a_s_t_e_w_a_t_e_r___ into the
stream.
4. __E__v_e_ry_t_h_in__g__has changed.
2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.
倒出；倾泻 pour… into… 把……倒入…… e.g. Pour red wine into the glass.
1b Listen to 1a and mark the words with P (Past) or N (Now).
__P__ beautiful __P__ butterflies __N__ dirty
a place with
beautiful flowers many hills
green trees
Oh, my goodness. What a mPe27s1sa m!p3
Is it beautiful now? What has happened there?
Look! There are several chemical factories pouring waste water into the stream.
factories pouring waste water
into the stream.有几家化工厂正在往小溪里排
放废水。
There be…doing sth…
……有……在做某事
e.g. There are some people waiting for the bus at the bus stop.

enough bamboo to eat
【点击播放】
B. Listen to again and fill in the blanks.
1. Now some kinds of animals are becoming ______ ______ ______.
2. Some animals are ______ ______ of dying out completely.
I think we should make rules to change the situation. Perhaps it will be hard for us to keep the rules in the beginning, but if ______ does their best to follow the rules, our school will become better and better day by day.
3. As we know, none of us likes pollution. 正如我们知道的, 我们没有人喜欢污染。
none意为“没有任何东西或人、一个也没有”， none可以指人也可以指物，表示三者或三者以上中 没有任何人或物，常与介词of连用，表示一定范围 限制。none作主语时，谓语动词用单数或复数都可 以，但of后为不可数名词时，谓语动词只能用单数 形式。它还常用来回答How many / How much引导 的问句。
B. protect
C. to protect
D. protecting
4. Jane came into the classroom, __A____ some
flowers.
A. carrying

Read aPnadraagnraspwhe2r.and mark T or F. • How can we avoid a serious water shortage?
( FfFSiei)erlcsdSot.c,niedwn,etwisshetsosuhhlaodvuseldanv’ptermowataedtcetraoanunyrdwpnraotget rrwerasessstoeinuirtt.cheiss ( Fan) dWnaotterpoisllureteustehdemn.owhere. ( TdTah) yirP.de,opwlee’shnoeueld fdoisr cwoavter wisaiynscrteoarseiunsgedwayatbeyr.
can’t live without water.
water on the earth
While there is so much water around the world, Nweeahrluymtharnese aforuertshtsillosf hthoerteoafrtdhriisnkcionvgerwedatwerit.h water.
• Q: How can we change sea water into fresh water? • We need to take the salt away from the sea
water.
Enjoy Reading
1. be short of
1. 缺乏……
2. on the earth
______________________
2. How can we __a_v_o_id____(避免) a serious water shortage?

Listening Practice and Improvement
要点一
Listening exercises
Provide a variety of listening exercises, including multiple choice questions, fill in the blank questions, and true/false questions to help students practice their listening skills
Activity 2
Prepare and deliver a short speech on a topic related to the unit theme
Ninth grade unit 2 topic 2 section a courseware for Ren'ai English
目 录
• Introduction • Vocabulary learning • Listening training • Oral expression • Reading comprehension • Grammar knowledge guidance • Classroom Summary and Homework
3. Independent - C. Need
2. Impoverilary practice and consolidation
4. Afflict - D. To relief 5. Derived - E. Lacking needs
Activity 2: Fill in the blanks with the appropriate words from the key vocabulary list

3. Which of the following is not true?
A. It’s quick to go to the airport by maglev train.
√B. China is the first country in the world to use biogas technology. C. Electric vehicles are friendly to the environment. D. The disadvantage of biogas technology is that the process requires a long time.
Match the words with the pictures on Page 48 (1b).
A. acid rain B. nuclear energy C. biogas 酸雨
B
C
A
Step 3 Fast reading
Choose the right picture for each paragraph.
The train can reach a top speed of 431 km per hour.
Task 5：Read 1a again and complete
the table. （1c）
renewable
save energy, no pollution
quiet, quick, energyefficient, no pollution
6.在不久的将来 6. in the near future
7.达到最高时速 7. reach a top speed
8.更贵得多
8. much more expensive

九英 上
Unit 2 Saving the Earth
Topic2 All these problems are very serious.
Section A
制作：舒庄一中
修订人；郭红杰
学习目标
1、学习并能说出、写出P35—36的生词， 并能进行英汉互译 2、熟读1a，能够说出1a中重要的知识点，能 够熟练做题。 3、能够说不定代词和不定副词的用法,并能熟 练做题。
We can: 1. Use the indefinite pronoun and adverb. 2.Talk about the sandstorm and its harm.
1. Read 1a.
2. Memorize the useful expressions and key sentences which we learn today. 3. Finish Section A in your workbook. 4. Preview Section B.
【自学指导2 】 1.自学内容：课本35页1a 2.自学方法：听录音和扫读。 3.自学时间：5分钟 4.自学要求：听1a，完成1b; 读1a，完成1c.
自学检测2 完成1b Listen to 1a and choose
the best answer.
Focus on the main idea of the conversation when you listen for the first time.
Listen and answer the questions
1.What’s the weather like today ? It’s bad. The wind is so strong . And the sand really hurts face. n.沙 2.What causes these sandstorms ? People have cut down too many trees. As a result, a lot of rich land has changed into desert. 3.Do we still need to do something to protect the environment ? Yes, we do. Although we have built “The Green Great Wall”, we still need to do something to protect the environment .

There were sandstorms before. While I was walking down the street, I couldn’t see anything. The sand really hurt my face. Maria: Why was the weห้องสมุดไป่ตู้ther so bad? Jane : People cut down too many trees. As a result, a lot of rich land changed into desert. Trees can stop the wind from blowing the earth away.
___p_le_n_t_y_ __o_f___food. 4. Humans have _c_o_m__e __t_o__ __u_n_d_e_r_st_a_n_d____ the importance of protecting animals. 5. We should __d_o___ _o_u_r___ b_e_s_t_to protect them.
1c Read 1a and complete trees'functions.
A. Trees can stop the wind B. A lot of water can be C.They can also stop the
from blowing the earth away. saved by forests water from washing the earth away.
wash
away
The rain washed the earth away.The forests have gone.

and plant mfeowreer trees.
groups and act it out.共同体内分
: Answer the questions.回答问题
1. What are Kangkang and Michael talking about? They are talking about air pollution in China.
5.——Jim, can you see the words on the blackboard?
——Sorry, I can’t see _a__n_y_t_h_in__g__.
1.Read 1a. 2.Memorize the useful
expressions and key sentences which we learn today. 3.Finish exercise in your workbook. 4.Preview Section C.
We can:
1. Use the indefinite pronouns correctly. 2. Use the proper ways to protect the environment.
一.单项选择
( )1. Mr. Chen came in and said he had _____ to tell class.
problem. But the government is doing s_o__m__e_th__in__g _u_s_e_f_u_l__to protect the environment. We should do e_v__e_r_y_th__in_g___ we can to protect the environment. We _s_h__o_u_l_d_n_’_t__ leave rubbish here and there. Don’t __s_p_i_t___ anywhere in public. Don’t walk on grass or _p_i_c_k__ flowers. Everyone should _c_a_r_e__ __f_o_r__ wild animals and plant more trees.

1b
Read and Finish the tasks.
Paragraph 1 Paragraph 2 Paragraph 3
A. How to avoid the water shortage.
B. The best way to solve the problem in the future. C. The reason why the world is thirsty.
litter
water pollution
soil pollution
noise pollution
Discuss
—Which one do you think is the most serious pollution? — I think …is…
water pollution
Imagine you are water. Please tell us your functions, problems and wishes.
I’m water. I used to be … …can’t live… People use… to… Now factories usually pour… Now people… I wish human beings …
Learn the new words
The crow is thirsty, it discovers a bottle of water. thirsty adj. 口渴的 discover v. 发现 So People should There make a to protect islaw serious water the water resources. shortage in Africa. So they should avoid wasting water. law n. 法律 resource(s) n. 资源 水缺乏 water shortage avoid doing sth. 避免做某事

Unit 2 Saving the Earth Topic 2 All these problems are very serious.
Section D
Teaching aims:
•1.Review the key grammars and sentences •2.Improve the ability of reading
2. What can we do now to avoid the water shortage?
First, we should save water and not waste it. Second, we should protect our water resources and not pollute them. Third, we should discover ways to reuse water.
3.What will be the best way to solve the problem in the future in the passage?
To find cheaper ways of taking the salt away from the sea water.
4.Do you know any other ways to solve the problem? What is it?
1b Read 1a again and answer the questions.
1.Why is our world thirsty when ¾ of the earth is covered with water ?
Because about 97% of the water on the earth is sea water, we can’t use for watering plants or drinking directly. it