课件30张PPT。
Unit 3 Our world
Topic 2
How can we protect ourselves
from the earthquake?
Section A 仁爱科普 八年级上Warming-upLet’s watch a video:Presentation:What did you see in the video?A terrible earthquake struck Wenchuan.?['??θkwe?k]
地震?[stra?k] 过去式struck [str?k]
侵袭；爆发； 撞击It’s on May 12th, 2008Where was it?When did it happen?It’s in Wenchuan in Sichuan Province.?['pr?v?ns] n. 省Presentation:EarthquakesDid you know any other earthquakes in China?The Yushu earthquake in 2010 in Qinghai Province
and the Tangshan Earthquake in 1976 in Hebei Province.Of the three earthquakes, Which was the most serious?The Tangshan Earthquake was the most serious. More than 24,000 people lost their lives in it.lose one’s life 失去生命Listen to 1a and choose the correct answer.Kangkang and Li Ming are talking about _______.
ways to protect us from earthquakes
the earthquakes in China
the number of buildings falling down
the missing people in earthquakeLet’s know more about these earthquakes:Listening1bRead 1a, complete the table.Yushu earthquakefell downdiedwere missing2008Tangshan earthquake 1976the most serious lost their livesserious1cReading:Reading:Kangkang: Li Ming, come and look! A terrible earthquake struck Qinghai!
Li Ming: Oh, no! When and where?
Kangkang: It stuck Yushu in Qinghai Province early this morning.
Li Ming: Was it serious?
Kangkang: Yes. May buildings fell down. Some people died and many people
are missing.
Li Ming: I'm very sorry to hear that. Read 1a and take notes.地震袭击，爆发，撞击省凌晨严重楼房，建筑物fall down 倒塌死亡失踪Reading:Kangkang: And I know that there were another two terrible earthquakes in
China.
Li Ming: Really? Which was the most serious?
Kangkang: I think the Wenchuan earthquake in 2008 was more serious than
this one, but the Tangshan earthquake in 1976 was the most serious.
More than 240,000 people lost their lives in it.Read 1a and take notes.= over 多于，超过lose one’s life 失去生命Reading:Li Ming: How terrible! How can we protect ourselves from the earthquake?
Kangkang: Let's ask Miss Wang for help.保护……免受…… 向某人求助Read 1a and take notes. lose one’s life 失去生命
Eg: His brother lost his life in the big fire.
protect sb. from 保护……免受……
Eg: 戴太阳镜可以保护眼睛不受伤害。
Wearing sunglasses can ____________________the sunshine.
3. ask sb. for help 向某人求助
Eg: 当我们处于危险时，可以向警察求助。
We can _____________________ when we are in danger.protect our eyes fromask the police for helpKey points in 1aWatch the flash of 1a, Then act out the dialogue in pairs.Pairwork Yushu earthquakefell downdiedwere missing2008Tangshan earthquake 1976the most
serious lost their livesserious1dMake up a conversation based on 1cPairwork An example:A: When did the
Yushu earthquake
happen?
B: It happened in 2010.
A: Was it serious?
B: Yes. Many buildings
fell down, some people
died, and many people
were missing.
A: Which is the most
serious earthquake? Find out the comparative and superlative degrees in 1a.more serious the most seriousWork out your own grammar rules and check them with your teacher and classmates.delicious—
interesting—
carefully—
popular—
careful—More words:more delicious— the most delicious more interesting—the most interestingmore carefully—the most carefullymore popular—the most popularmore careful—the most careful多音节词和部分双音节词：
在词前加more/the most。funny
heavyshort
tallthin
hotoutgoing
importantfunnier
heaviershorter
tallerthinner
hotter more outgoing
more important比较级,要变化,词尾一般加er。辅音字母若加y,记得把y变成i。重读闭音节，单辅音字母要双写。如若遇上多音节，
就要考虑加上more。nice
latenicer
later词尾若有哑音e, 直接加r就可以。形容词副词比较级规则变化规则变化Revision形容词副词最高级的构成——规则变化：Revision形容词副词比较级最高级不规则变化good —better/best well —better/best
bad－worse/worst many/much — more/most
little — less/least
far — farther/farthest (距离远)
far — further/furthest (程度深)
old — elder/eldest (长幼)
old — older /oldest(年龄)Study the rules and complete the table.2aA: The telephone is useful.telephoneB: I think The mobile phone is ___________
than the telephone. mobile phoneC: Yes, But the computer is _______________
of the three. computermore usefulthe most usefulLook and sayPractice:['m?ubail f?un] 手机Presentation:Look and sayfire ?earthquake 地震A: Which is more serious? A fire or an earthquake?
B: I think an earthquake is more serious than a fire.['fa??] 火灾Practice:['re?nst??m] n.暴风雨rainstormsnowstorm['sn??st??m] n.暴风雪A: Which is the most serious?
B: I think…earthquakecoldtoothachefeverLook at the pictures and ask and answer with your partner. Pair work:A: Which is more terrible? …or…?
B: I think…is more terrible than …
A: Which is the most terrible?
B: …Number the things according to the degrees you like them, Then follow the example to make small conversations:2bdangerousfootball basketball baseballAsk and answer with your partner according to 2b.A：The __________ is dangerous.
B: I think the ________ is more dangerous than the ________.
C: Yes, but the _________ is the most dangerous of the three.An example:Listen to the passage and complete the table.trainlateterribleeightfooddrinks3ListeningsummaryThe phrases of the dialog : lose one’s life 失去生命
protect sb. from 保护……免受……
ask sb. for help 向某人求助The comparative and superlative of adjectives: more + adj. the most + adj. １.我的学校比你的学校更漂亮。
２.我认为英语比数学更有趣。
３.狮子是最危险的动物。
４.他的病更严重了。My school is more beautiful than yours. I think English is more interesting than math.Lions are the most dangerous animals. His illness is more serious. 翻译句子。Exercise:1. The building is ____ than that one.
A. more taller B. very taller C. taller D. so taller
2. Everything is getting ________.
A. good and better B. better and better
C. best and better D. best and best
3. Which is ______ , the moon or the earth ?
A. big B. very bigger C. the bigger D. biggerChoose the best answers.Exercise:
Recite 1a.
2. Try to remember the rules of the comparative and superlative degrees .Homework上21世纪教育网 下精品教学资源谢谢21世纪教育网（www.21cnjy.com)中小学教育资源网站有大把优质资料？一线名师？一线教研员？
赶快加入21世纪教育网名师合作团队吧！！月薪过万不是梦！！
详情请看：http://www.21cnjy.com/zhaoshang/Unit4 Our world
Topic 2 How can we protect ourselves from the earthquake?
Section A 同步练习
一、单选题。
1.Some old houses ????in my hometown last summer.
A.fall down B.fell down C.write down D.wrote down
2.We should do something ???????the animals in danger ???????being killed.??
A.?to protect, from ?B.?protect, from
??C.?to protect, for D.?protect, for
3.Ya'an earthquake happened??? an ordinary morning . ???
A.?at????????????????????????????????B.?on????????????????????????????????C.?in?????????????????????????????????D.?of
4.Air pollution has become ______ than ever before. We must do something to stop it.
A.?serious??????????????? ??B.?more serious??????????????????
C.?most serious?????????????? ????D.?the most serious
5.— The earthquake in Wenchuan in 2008 killed ????????people. — We were sad to hear that.
A.?thousands???????????? ???? B.?thousands of????????????????
C.?thousand of???????????????? ?D.?two thousand of
6.__________ earthquake happened in Ya'an Sichuan, on the morning of April 20.
A.?An????????????????????????????B.?A?????????????????????????????C.?The???????????????????????????????D.?/
二. 完形填空。从A、B、C、D四个选项中选出能填入空白处的最佳答案。 ??? About five hundred years ago, an earthquake happened in a small village.? 1 for them, nothing was destroyed（毁坏）and no one was hurt. But a huge stone? 2 ?from a nearby mountain and stopped in the middle of the road. ? ??? 3 the earthquake stopped, many people came to the road and saw the stone. Some of the? 4 men tried to lift the stone out of the road. But they couldn't move it. They tried to push it? 5 failed. They tried to pull it with ropes but nothing? 6 . ? ??“Well," they said sadly, “there's nothing we can do about it. We'll have to change the way." At this time a boy about 12 years old said,? “I think I can help you to move the stone away." “You?" they shouted. “What are you talking about?" The men all? 7 the boy. ??? The next morning, some people came into the road. One of them shouted, “The stone is gone." More people ran out to see 8 had happened. It was true. The stone wasn't on the road any longer. It wasn't even near the road. ??? The boy walked over to where the stone had been and said, “I buried it." ??? The people looked very? 9 .“You see," he said, “I dug a deep hole next to the stone and I dug a small incline(斜坡)up to the stone and the stone rolled(滚)down into the hole? 10 . Then I covered it with earth." ?? ?The villagers shouted, “Clever boy! Clever boy!" And some of them said, “Why didn't we think out this good idea?"
1. A. Unluckily
B. Luckily?
C. Suddenly?
D. Sadly
2. A. fell?
B. rose??
C. raised??
D. felt
3. A. While?
B. As?
C. When
D. Before
4. A. weakest
B. strongest??
C. oldest
D. cleverest
5. A. and??
B. or
C. but
D. so
6. A. did??
B. worked
C. made?
D. followed
7. A. looked at?
B. shouted at??
C. laughed at
D. pointed at
8. A. what?
B. why??
C. how??
D. which
9. A. excited??
B. bored????
C. interested?
D. surprised
10. A. myself??
B. themselves
C. itself??
D. it
三. 阅读理解。 ?? On 26th January, the biggest earthquake（地震）in India took the lives of 25000 people. In the morning, when everybody was enjoying holiday, earthquake began. It was about 7.5 on the Ritcher scale. "There is nothing left between the sky and the earth any more. Everything has been pulled down," said one of the villagers alive. "There is no water, no food and no one has come to help." ?? Nobody died in Pakistan, a country next to India. The City of Lahore was lucky. In Lahore American school, where I was studying, all of the students were safe. They were on the field, so most children didn't feel anything. The earthquake was felt by the teachers that were on the second floor. However, though Mrs Young was also on the second floor, she didn't feel anything. She didn't know what happened until a teacher told her about it. Those teachers who were on the other floors had different feelings. Mr Emond, the maths teacher from Australia, said that when the earthquake started he thought there was something wrong with him, but then another teacher said that it was an earthquake. After those words Mr Emond felt better. Mrs Davis and ?? Mr Frost didn't feel anything either. ?? My mother didn't feel anything. She didn't even know that it was an earthquake till she saw a shaking (moving from side to side) light. My dad saw the computer shaking and then he looked out of the window and saw many people going out.
（1）People use "Ritcher scale" to tell ______.
A.?where the earthquake takes place??????????????????B.?when the earthquake takes place C.?how serious the earthquake is????????????????????????D.?how long the earthquake lasts
（2）We learn that ______ from the sentence "There is nothing left between the sky and the earth any more."
A.?India is a large country??????????????????????B.?the Indian people had nothing after the earthquake C.?there is no tall building in India????????D.?the earthquake in India was serious
（3）The city of Lahore is ______.
A.?in India????????????????????????B.?in America????????????????????????C.?in Pakistan????????????????????????D.?in Australia
（4）Which one is true?
A.?I was with my parents when the earthquake happened. B.?The earthquakes in the city of Lahore wasn't serious. C.?People in the City of Lahore were frightened when they knew if was an earthquake. D.?The teachers in Lahore American school were afraid of the earthquake.
四. 写出下列词的比较级。
1. big _________?? ?? 2. little _________??
3. friendly _____________ ? 4. early _________? ?
5. beautiful _____________ 6. expensive_________
7. easy _________ ? 8. late _________
9. far _____________ 10.useful_________
11.clever_________ 12.dangerous_________
同步练习答案
一、单选题
1. B 2. A 3. B 4. B 5. B 6. A
三. 阅读理解。
（1）C （2）B （3）C （4）B
四. 写出下列词的比较级。
略
