北师大高中英语选修八Unit22Lesson3NaturalDisasters课件2

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英语北师大版选修8 Unit22 Lesson 3 Natural Disasters 构词法

.
.专业. Unit 22 Lesson 3 Natural Disasters 1
构词法之派生法:
派生是由词根加词缀构成新词.构成的新词称为派生词.词缀分为前缀和后缀.除少数前缀外,前缀一般只改变词的意义,不改变词类;后缀一般只改变词类,不引起词义变化.
一些前缀的用法:
dis-表示“分开,分离,否定,不〞之义
over-表示“在...上面, 优越〞之义
de-剥夺, 分离
under-表示“在...下，次于〞之义
re-表示“又, 再〞之义
un-用于形容词之前, 表示“不〞
semi-表示“半,不完全地〞之义
multi- 表示“多，多种，多个〞之义
mis- (=miso-) 表示“坏,错误,否定〞之义(用于元音之前)
en- 表示“使、使成为〞之义
in- 表示“否定,与...相反〞之义
il-〔用于l之前〕= in-
im-〔用于b, m, p之前〕= in-
ir- (=in-),(用于以r开始的字)
inter-表示“在一起, 交互〞之义
tele-表示“远距离传递，电视〞之义
non- 表示非, 无, 不。

北师大版高二英语必修8_Unit22_Lesson3_Natural_Disasters参考课件

(1-5) with these sentences (a-g) .There are two
extra sentences you do not need .
(1) b)
(2) f ) (3) g )
(4) e )
(5)
a)
Exercise 4 :Read the text again and answer these questions. 1 What is the attitude of the journalist towards the
future? Pessimistic/negative
2 Who are most likely to be the victims of natural disaster? Poor people
3 Why are there now more hurricanes ,floods and droughts ? Overpopulation and mismanagement of the world’s resources
Unit 22 Environmental Protection Lesson 3 Natural Disasters
Look at the following pictures and point out what kind of disasters they are?
Are they caused by people? Are they made worse by people? Are they natural?
Vocabulary: Nouns or Verbs?
Exercise 5
1 a) n.手臂
4 a)
b) v.武装

北师大版模块8 Unit 22 lesson3 Natural Disasters课件

Sequencing of information,
which are quite similar to strategies learnt in this lesson.)
1st Reading
Reading strategy 1 → skimming Read the text to get general idea. (2m’)
Para 3: Para 4:
Para 5:
D. Experts predict that natural disasters will get worse
E. Causes of natural disasters— Urbanization & industrialization
Reading strategy 3 → Read the sentences before and after the gap and look for clues about the missing sentence , e.g. is it an example of what is mentioned before? Reading strategy 4 time references (then), pronoun references (it , that ), linking words (however).
Step 2: Task : Learn to use Reading Strategies: Completing texts with sentence gaps
(In
lesson 3, P38, Unit 21, Module 7, we have learn the reading strategies:

2019学年度北师大版选修8Unit 22 Lesson3Natural disasters (共22张PPT)名师精编课件

Answer: D
Part III
After-Reading
Complete the structure of the text.
Part IV
Homework
Finish exercises 5 & 6 in your textbook on P11.
Thank you for listening,
Part II
Reading
Completing Texts with sentence gaps
Reading strategies:
1. Read and understand the given sentences.
2. Read the sentences before and after the gap and look for clues about the missing
高二北师大版模块八
Unit 22
Environmental Protection
Lesson 3 Natural Disasters
Objectives
■ To practise using the vocabulary of natural disasters.
■ To practise reading strategies to complete texts with sentences gaps.
hurricane
landslide
tsunami
typhoon
volcanic eruption
Vocabulary about natural disasters
droughts, earthquakes, floods, forest fires, hurricanes, landslides, tsunamis, typhoons, volcanic eruptions

北师大版选修8 unit22 lesson 3

hurricanes
forest fires
typview the words
• • • • • • • • • Droughts Earthquake Floods Forest fires Hurricanes Landslides Tsunamis Typhoons Volcanic eruptions 地震森林火灾飓风滑坡，山崩海啸台风火山爆发洪水，水灾旱灾
Step 1: General idea
Listen to the material from the text and then gain the general idea: floods earthquakes In the last decade, thunderstorms,_______,__________, typhoons forestfires have ________,volcanic eruptions, tsunamis and _____ become increasingly common. There has been terrible Asia _______, Africa American and Oceania. Even flooding in _____, Europe has suffered and large areas have been __________. underwater Storms have been getting worse everywhere too, with a US Central growing number of hurricanes hitting the _____,and ______ American ________.

北师大高中英语选修八22.3Lesson3NaturalDisasters(23ppt)

The 5.
growing population of the
world.
The huge amounts of carbon dioxide 6.
by factories and vehicles.
The 7.
of the world’s forests.
Volcanoes and earthquakes are even more 8.
(2)Nobody can turn
the wheel of history.
(3)The plan turned
to be a failure.
(4)We often turn
this handbook for information on transistors.
(5)Why did they suddenly turn you
二、根据提示,完成单词
1.change→
adj.多变的
2.irrigate→
n. 灌溉
3.separate→
n.分离,分开
4.mountain→
adj. 多山的
答案:1.changeable 2.irrigation 3.separation
4.mountainous
5
一二三四
Y 预习导引 U XI DAO YIN
A.flood
B.earthquake ndslide
D.volcanic eruption
E.tsunami
F.forest fires
1.
ቤተ መጻሕፍቲ ባይዱ
2.
3.
4.
5.
6.
答案:1.C 2.A 3.F 4.B 5.D 6.E

北师大版高中英语选修八Unit 22《Lesson 3 Natural Disasters》课件 3

目录退出
②—Did you take enough money with you?
—No,I needed
I thought I would.
A.not so much as
B.as much as
C.much more than
D.much less than
提示:根据“No”可判断出说话人没有带足够的钱,由此可以推
C.no more interesting
D.any less interesting 提示:考查形容词。根据题中“not a bit interesting”可知,说话人认为
这部电影实在是没意思。再根据答语中“Why?”可知,第二个人并不同
意第一个人的看法,所以答案为 A 项。far more“多得多,更加”。
at all.
提示:turn up“出现,来到”;句意为:“我们别等了,他也许不会来了。”
答案:B
目录退出
②With no one to
in such a frightening situation,she felt very
hopeless.
A.turn to B.turn on
C.turn off D.turn over
断,“我”需要比“我”认为的更多的钱。因此选 much more than。答案:C
目录退出
③How much
she looked without her glasses!
A.well
B.good
C.best
D.better
提示:句意为:“她不戴眼镜看起来好得多!”此句为感叹句,且根据句
意可知应用比较级 better。答案:D
10.

【学案导学设计】-高中英语 Unit22 Period Three Lesson 3 Natural Disasters课件北师大版选修8

[题组训练] 用 flee，escape 的适当形式填空 (1)During the war， thousands of people fled the country. (2)The enemy soldiers were fleeing in all directions， but few of them could escape .
解析 flee 逃跑但未必能逃脱，侧重动作本身及逃跑时的紧急状况。 escape 侧重逃跑的结果，即逃脱。
4．The last few years have seen environmental disasters on a grand scale， and experts are predicting far worse to come. 最近几年里，人们已经见证了大规模的环境灾难，专家们预测更为严重的灾难即将到来。
hand
.
老师手里拿着本书走进了教室。
(4)The old couple often take a walk after supper in the park
with their pet dog following them .
晚饭后这对老夫妻经常在公园里散步，他们的宠物狗跟在他们后面。
[归纳拓展] flee vt.& vi.(fled，fled)逃走 flee to...逃到…… flee (from) some place 从某地逃离，逃离某地
[语境助记] (1)The burglars were frightened and fled. 盗贼受惊后落荒而逃。 (2)They were forced to flee their motherland. 他们被迫逃离他们的祖国。
[题组训练 2] (1)As a child grows up，he starts to make/earn his own living . 当孩子长大后，便开始自己谋生。 (2)You are old enough to earn your own living . 你到了自己谋生的年龄了。

北师大版高中英语选修八Unit22《Lesson3NaturalDisasters》教案3

北师大版高中英语选修八Unit22《Lesson3NaturalDisasters》教案3Lesson 3 Natural DisasterTeaching Aim:(1) to introduce some reading strategies--completing texts with sentence gaps△Read the text to get the general idea.△Read a paragraph with a sentence gap and identify the topic.△Read the sentences before and after the gap and look for clues about the missing sentence.△Certain words may help you: time references (then), pronoun references (it , that ), linking words (however).△Decide which sentence goes in the gap. Check that it fits the sentences before and after it.(2) to get some knowledge about natural disasters(3)Some words can be used as nouns as well as verbs, with different meanings. Students will be introduced some of these words in the exercises.(4)To master uses of some words and expressions.Stage 1 introduction of the topic—setting a discussionStage 2 reading extensively①read for the first time and complete the gaps in the text②read for the second time and answer the questionsStage 3 reading intensivelyFinish the summary of the whole passage. All the words needed are very important for text understanding.Stage 4 word-studyarm result means slide slip rollStage 5 solve language puzzlesSince students have read the passage for 2 times and got the main idea of the passage, there are few language puzzles for them now.Here, several words are explained. They are:result in result fromwith的复合结构wipe outturn on sb.at the rate offor instancewithin the range ofHomework: exercise on 1,2 on page56 and 4,5 on page57 can be used as exercise resources.练习：1【·2015届浙江省温州市十校联合体高三上学期期初联考】More and more people are advised to arrange for insurance _________ that they or their family members need medical care.A. in orderB. in needC. in caseD. in hope【解析】C 。

北师大版模块8-Unit-22--Lesson-3-Natural-Disasters的教(学)案

Unit 22 Lesson 3 Natural Disasters崇世界I. Teaching Aims1. To practise reading strategies to complete texts with sentence gaps.2. To practise using the vocabulary of natural disasters.3. To do exercises about the text.4. To talk about disasters and aid.II. Teaching Important Points and Difficult Points 1. Some students may have problems with the pronunciation of the vocabulary.2. How to read the text and grasp the main idea of it.3. To help the students improve their ability to express English and to be creative.III. Teaching Methods1. Multimedia computer assisted instruction2. Communicative teaching method3. Student-centered teaching method4.Activity-based teaching methods (Question-and-answer; Free discussion; individual work, pair work, group work) IV. Teaching AidsMulti-media computer, the blackboardV. Teaching ProceduresStep 1 GreetingGreet the whole class as usual.Step 2 Warm upShow them some pictures of the disasters. Look at the following pictures and point out what kind of disasters they are?♦Are they caused by people?♦Are they made worse by people?♦Are they natural?And then lead in new subject: Natural Disasters.Step3 Read to learnAsk Ss to read the text and check their answers to Exercise1.Tell Ss to read through the sentences first before they go back to the text and study each paragraph, and thenask them to complete exercise3 individually, check their answers.Use the Strategies to complete the gaps in the text (1-5) with these sentences (a-g). There are two extra sentences you do not need:a)But evidence shows that 73,000 years ago there was a muchgreater eruption.b)Even Europe has suffered and large areas have beenunderwater.c)That is probably not the most important factor either.d)Third, the other bits of land you might have been ableto farm are now useless.e)On top of that add global warming.f)For example, the Yellow River, once famous for flooding,failed to reach the sea at all for 226 days in 1997.g)One answer is overpopulation.Step 4. ListeningPlay the cassette, while they are listening, ask them to pay attention to the pronunciation of the speaker and check theanswers in exercise 3.Step 5. Intensive readingAsk students to read the text again and answer the questions. Read the passage carefully again and fill in the following blanks on the screen.1. what is the attitude of the journalist towards the future?2. Who are the most likely to be victims of natural disasters?3. Why are there now more hurricanes, floods and droughts?4. Why are volcanoes and earthquakes more dangerous now?5. What could be the biggest threat to the planet in the future?6. What effects might this threat have?Step 6. Post-readingRead the text carefully and fill in the following blanks.Step 7. DiscussionWork in pairs. Discuss these questions:1. What natural disaster has happened in the last year?2. What were the results of the disaster?3. What do you think governments can do to help prevent natural disasters?3. What can we do to improve the environment and help victims of natural disasters?Step 8. Homeworkask students to do the exercise5 and 6 as homework.2nd PeriodTeaching objectivesIn this lesson, we will:1. Learn and practise vocabulary about natural disasters，esp collocations.2. Practise identifying nouns and verbs.Step 1 Guessing the new vocabulary1. Nature is turning on usturn on sb. : attack 攻击, 变得与……敌对e.g. The dog turned on me and bit me in the leg.Erlang turned on Lisa, who, he thought, had deceived him.2. A number of nations have already been in armed conflict over water. (L8, Para 1)armed conflict over water/land 因水/土地而引起的武装冲突3.The tsunami killed 132,000 Indonesians and another 100,000 people of other nationalities. This catastrophe is still very fresh in the minds of people worldwide who have not get over their separation from loved ones lost in the tsunami. (L7, Para 2)catastrophe -- a great, often sudden disaster4. …had to flee as they thought it was about to erupt.flee--to run away, as from trouble or dangerStep 2. Learn Collocations1.reduced rainfall 减少了的降雨量2.irrigation canals 灌溉渠道3.be in armed conflict over water 因水而引起的武装冲突4. volcanic eruption 火山爆发5. be a threat to sb/sth 对…构成威胁6. recover from a tsunami 从海啸（的灾难）中恢复过来7. be fresh in the minds of people 在人们的心目中记忆犹新8. get over their separation from loved ones lost in the tsunami从与海啸中丧失亲人的打击中恢复过来9. construct shabby homes搭建破烂的房屋10. slip and slide downhill in the landslides 在山体滑坡时滑下山坡11.howling winds with speeds of 300 km/h 每小时300公里（咆哮）的大风12. live within the range of a volcanic eruptions 生活在火山喷发的围13. occur at random times 不定时发生14.to some degree 在某种程度上15.The earthquake claimed 1.6 million lives.地震夺取了160万人的生命。

高中英语 unit22 lesson3 natural disasters课件北师大选修8

e.g. At last, the army led by Mao Zedong wiped out the enemies . A disease almost wiped out the population of the island.
ten
floods
droughts
typhoons
eruptions
forest
population
__ addition, ______ change and the spectre of global ________ caused by the mismanagement of the world’s resources can lead to the disasters or make them worse.
result from 是由。。。造成的 e.g. It all resulted from jealousy.
1. After the storm they had to ______. 2. Many people in the developing world suffer from diseases because they are ______________. 3. Our team was knocked out in the _________ of the competition.
risk : vt./n. 冒险 e.g. You are to take risks to get what you want, but you must not risk your life ! at risk 处于危险之中, 作表语或者状语
at/ take/run the risk of 冒……的危险 He saved my life at the risk of losing his own. They were ready to run/take the risk of being taken prisoner by the enemy.

高中英语Unit 22 Lesson 3 Natural Disasters 1北师大版选修8

Unit 22Lesson 3 Unnatural disastersTeaching aims1.words and phrases：2.the text3.reading strategies4.exercises about text5.vocabulary: prefixesTeaching timeTwo periods(两课时连堂)Teaching processStep 1 RevisionReview the new words of lesson 2 and have dictionStep 2 learn the new words1.ask some students to read the new words first and correct their pronunciation2.play the tape and have them read after the tape3.give them a few minutes to read the new words freely, tell them if they can’t re ad the words, encourage them to ask the teacher .step 3 reading1.before you starthave students read the key words,pay particular attention to word stress.then let them discuss the questions in pairs.2.let students read reading strategies.get their meaning.3.read to learna)exercise 2. students read the text quickly and check their answers to exercise 1.b)exercise 3.tell students to read through the sentences first before they go back to the text and study each paragraph.then ask them to plete the exercise individually. check their answers c)exercise 4.play the cassette twice, and ask students to read the text again and answer the questionsstep 4 vocabulary: prefixes1．Exercise 5a)read the instructions to the class and let students know what to dob)students do the exercise in pairs2.exercise 6a)read the instructions to the class and tell students the answers include words that are in brackets in exercise 5.b)ask some students to do the exercise on the blackboard.c)check their answers and read the sentences3.speaking:exercise 7a)give them a few minutes to discuss the questions in pairsb)go around and monitor themc)check their answersstep 5 HomeworkExercise 2 in page 56。

高中英语 Unit22 Period Three Lesson 3 Natural Disaster

第十七页，共23页。
[题组训练] (1) The last three months have seen your rapid progress in
learning English. 你在最近三个月的英语学习中进步迅速。 (2) The 20th century saw the landing of humans on the moon. 人类在 20 世纪登上了月球。
你到了自己谋生的年龄了。
第十一页，共23页。
3．In May 2006，thousands of Indonesians living near Mt Merapi (which means mountain of fire) had to flee as they thought it was about to erupt. 2006 年 5 月，成千上万的住在默拉皮火山(意思是火之山) 附近的印尼人不得不逃离家园，因为他们认为火山要喷发了。
第十六页，共23页。
[语境助记] (1)The old house saw the changes in the big family.
这座老房子见证了这个大家庭的变迁。 (2)As you know，Jinan saw the 11th National Games.
如你所知，济南见证了第 11 届全运会。
第十九页，共23页。
[归纳拓展] “with a growing number of hurricanes hitting the US， and Central America”为 with 复合结构。 “with＋宾语＋宾语补足语”称为 with 复合结构，此结构在句中常作状语，可位于句首或句尾，常作时间、原因、方式、伴随状语，亦可作后置定语。在此结构中可用形容词、副词、介词短语、不定式、现在分词、过去分词作宾语补足语。

高中英语北师大版选修8第22单元第3课U22-L3-2

从海啸（的灾难）中恢复过来
Difficult points 7. be fresh in the minds of people
在人们的心目中记忆犹新
8. get over their separation from loved ones lost in the tsunami
从与海啸中丧失亲人的打击中恢复过来
resulted in a draw. 8. The match ________ They had 2 points each.
Assignment
1. Go over the new words 2.Read the article.
Complete the sentences 6
armedforces protected the city. 1. The ______ 2. When will you get your exam ______?
3. Don broke his arm when he ______ and results fell on the ice.
Difficult points 2. reduced rainfall 减少了的降雨量 3. irrigation canals 灌溉水渠 4. be in armed conflict 武装冲突 5. be a threat to… 对…构成威胁 6. recover from a tsunami
5
1.a) She put her arms around me to comfort me. n. 手臂 b) The soldiers were armed with guns. v. 武装 2.a) Heavy rains resulted in floods. v. 引起 b) His results were not as good as he had hoped. n. 结果