Unit6 When disaster strikes Listening and speaking优质课件新外研版八上英语

这是一份初中Understanding ideas一等奖课件ppt，共35页。PPT课件主要包含了➷➷➷➷➷➷➷➷➷➷，typhoon，rainstorm，heavy fog，smog，hail，icy road，灾害预警系统，警报器突然大作，many years等内容，欢迎下载使用。
In this class,we will
Have yu ever received an emergency alert? Can yu describe the situatin and yur reactin?
What d yu see in the picture?
These are early warning systems fr natural disasters.
What d yu knw abut disaster warning?
The disaster warning is a system that helps peple knw abut the cming f natural disasters befre they happen. It helps peple gain mre time t make preparatins fr them.
Sme cmmn natural disaster warnings
high/lw temperature
thunderstrm and strng wind
Hw can the gvernment warn peple f disasters?
What d yu knw abut tsunami(海啸)?
A tsunami is a large wave caused by sudden events under the sea. These events include underwater earthquakes, vlcanic eruptins, underwater landslides, r large meterite impacts(陨石撞击). They displace a large amunt f water rapidly, frming huge waves. A tsunami is a pwerful natural phenmenn that can cause great damage t human beings.
A radi prgramme is n. It’s abut hw Tilly Smith save many lives in a disaster. Let’s listen and find ut mre infrmatin.
a She ran t the htel and stayed under the table.b She sensed the danger and warned thers.c She helped a 10-year-ld girl at schl.d She helped her classmates leave the cast.
danger n. 危险
dangerus adj. 危险的
Listen t the radi and chse hw Tilly Smith saved lives.
What d yu knw abut the disaster? What d yu knw abut Tilly Smith? Listen again and fill in the blanks.
Abut the tsunamiWhere did it happen? It happened alng a busy beach in ___________ (Thailand / Italy).Hw lng has it been since a tsunami happened here? It's been ___________ since a tsunami happened here.
Abut Tilly SmithHw ld was she? She was _______ years ld.What did she see befre the tsunami? She saw the water ging _______ up the beach.Hw did she knw it was a tsunami? She learnt abut tsunamis at schl __________ earlier.What did she d then? She warned peple n the ______. They all ran t a ______.Hw many lives did she save? She saved abut _____ lives with the schl lessn she remembered.
Listen again and crrect the mistakes in the hst's ntes. Crss ut the mistakes and write the crrect wrds.
辅音连缀/br/、/fr/
常见的含有/br/、/fr/的单词有：
In the face f disasters, we can als depend n technlgy.
Earthquake Early Warning Systems地震预警系统
Wildfire Detectin Satellites森林火灾探测卫星
Seaflr Seismmeter海底地震仪
Nw, listen t the cnversatin and answer the questin.What technlgy is mentined in the cnversatin?
A new app, Safety Net.
warning n. 警告，警示
warn v. 警告；提醒；告诫
Listen t the cnversatin and fill in the chart abut the app.
earthquakes
Listen again. Then talk abut hw the app is intrduced.
Hw d the speakers intrduce the prduct? What infrmatin d they include?
main functin
hw it perates (wrks)
give ther details
Summarise hw t intrduce a warning app.
a warning app
Retell the cnversatin.
Chse a piece f life-saving technlgy and intrduce it. D mre research if necessary.
Drnestake phts and vides t shw the effects f disastersprvide useful infrmatin t emergency services find survivrs and quickly send medicine and fd
A: What are these?B: They're drnes. They're made f plastic.A: Hw d they help in disasters?B: They can take phts and vides t shw the effects f disasters. This can prvide useful infrmatin t emergency services.A: That's amazing! Can they save lives?B: Yes. They save lives by finding survivrs. They can als quickly send medicine and fd t them.A: D they have any drawbacks?B: Yes, they d. They can't wrk in strng wind r heavy rain. Als, their batteries dn't last very lng.
1. Warning times fr strms in China have been increased t 42 minutes, with mre than 90% being crrect. 中国的暴雨预警时间已延长至42分钟，正确率超过90%。
1) warning n. 警告，警示
e.g. The warning will let users knw hw big and hw far the earthquake is.
warn v. 警告; 告诫; 提醒注意
e.g. Dad ften warns me nt t swim in the river. Jack warned us abut the dg just nw.
【常用短语】 warn sb. (nt) t d sth. 警告某人(不要)做某事 warn sb. abut sth. 提醒 / 警告某人注意某事
【语境应用】翻译句子1) 刚才那个男孩提醒我们注意地上的洞。2) 十分钟前我警告他们不要在这儿玩耍。
Just nw, that by warned us abut the hle(s) in the grund. / That by warned us abut the hle(s) in the grund just nw.Ten minutes ag, I warned them nt t play here. / I warned them nt t play here ten minutes ag.
e.g. It will help t increase yur speaking skills. 这会帮助提高你的口语能力。 Cmpared with last year, ur cal utput has increased by three times. 与去年相比，我们的煤产量增长了三倍。 Our cal utput has increased t 6 millin tns this year. 我们今年的煤产量增加至六百万吨。
2) increase v. 增加; 增大; 提高
【归纳】 increase by 增长了(后接百分比或倍数) increase t 增长到(后接具体数字)
2. She sensed the danger and warned thers. 她察觉到了危险，并且提醒了其他人。
danger n. 危险 (反义词：safety)in danger 处于危险中
e.g. It is reprted that many wild animals in the wrld are in danger because f human behaviur.
dangerus adj. 危险的
dangerus — mre dangerus — mst dangerus 
3. SAFETY NET 安全网
safety n. 安全
e.g. Safety cmes first. 安全第一。
【归纳】 fr safety 为了安全起见 in safety（=safely） 安全地
e.g. Fr yur safety, yu mustn’t get clse t the train until it stps. 为了你们的安全，直到火车停下来你们才能靠近它。 They crssed the rad in safety. 他们安全地穿过了马路。