英语必修 第一册Unit 4 Natural disasters课文ppt课件

这是一份英语必修 第一册Unit 4 Natural disasters课文ppt课件，共27页。PPT课件主要包含了Prediction等内容，欢迎下载使用。
When an earthquake happening, we...
shuln't run anywhere
stay away frm the windws
stay away the things that culd fall n yu
shuldn't hide under the dr frames
drp, cver, hld n
In the face f the natural disasters,what shuld we d?
1.If yu are inside, take shelter under sturdy furniture r in the cner f a wall.2. If yu are utside,stay away frm buildings and everything that culd cllapse （倒塌） yu are driving, pull up （停车）at a safe distance frm everything that culd fall dwn, stay inside until the earthquake is the earthquake, be careful, since there might be aftershcks（余震）.Leave the building and make yur way t（行走）an pen space.
Activity1 Listening
1. Mrs Frs is a rescue wrker. She and her dg, Lucky, are visiting a senir high schl. Listen t the cnversatin and cmplete the table belw.
wh t cntact
2. Listen again and fill the blanks.Student 1: Mrs Frs, I think yu’re a her. And Lucky is very cute. I’d like t knw what we can d t prevent natural disasters.Mrs Frs: Well, there is n way (1)_________ earthquakes and strms. But if we prepare, we can keep them frm becming disasters that kill r injure peple. T be ready, we shuld make a safety list f what t d, where t g, and wh t cntact.Student 1: S what shuld we d if there’s an earthquake?Mrs Frs: (2) “drp, cver, and hld n”. (3) nt yur hands and knees, cver yur head with yur hands,
and (4) glasses, windws, r anything that culd fall. Yu shuld find (5)_______ under a desk r table. Hld n t the desk r table s it desn’t mve away frm yu.
stay away frm
Teacher: What shuld we d if we’re utside when an earthquake happens?Mrs Frs: (6) an pen space away frm buildings, trees r pwer lines.Student 2: And what abut after an earthquake?Mrs Frs: Well, if yu’re trapped, (7) yu can ________t call r text fr help. Yu can als (8) a pipe r a wall, r whistle fr help. That way Lucky and I can find yu.
use a cellphne
What natural disaster is shwn in the picture?
What is a tsunami?
What causes it?
What is its damage?
Lk thrugh the picture and intrductin
Befre Yu Watch
Read the sentences abut the frmatin and effects f tsunamis. Then match each sentence with the crrect picture.
A. Tectnic plates(地壳板块) push tgether.B. A series f waves expands in all directins.C. Whle sectins f cities are destryed.
While Yu Watch
Task1: Decide whether the statements are true (T) r false (F).
1.There are few warning signs just befre a tsunami hits.2. A tsunami breaks just like an rdinary wave but is at the Pacific Tsunami Warning Center mnitr the earth’s mvements 24 hurs a day in rder t track tsunami.
Check yur answers
1. There are few warning signs just befre a tsunami hits.
2. A tsunami breaks just like an rdinary wave but is bigger.
A tsunami wave desn’t break like an rdinary wave.
3.Scientists at the Pacific Tsunami Warning Center mnitr the earth’s mvements 24 hurs a day in rder t track tsunami.
Task2: Circle the crrect wrd(s) in each sentence.
1. An earthquake ccurs when plates belw the earth’s surface push tgether/pull apart.2. Tsunami waves deep at sea mve fast and rise nly a few/ hundreds f feet.3. As these killer waves enter shallw waters, their speed is reduced/raised.4. Mst tsunami damage is caused when the waves cme in frm/mve back ut t the sea.
1. An earthquake ccurs when plates belw the earth’s surface push tgether /pull apart.
2. Tsunami waves deep at sea mve fast and rise nly a few/ hundreds f feet.
3. As these killer waves enter shallw waters, their speed is reduced/raised.
4. Mst tsunami damage is caused when the waves cme in frm/mve back ut t the sea.
After Yu Watch
Task3: Wrk in pairs. Discuss the questins.
1.What have yu learnt abut tsunamis?
harbr wavea natural disastertectnic plates undersea earthquakes
2.What kind f help d yu think peple wh have suffered frm a tsunami need?
2.Huses are damaged.
Shelters shuld be built there.
3.Resuces are cut ff.
Fd and water shuld be sent there.
4.Peple lst their lved nes.
Emtinal help shuld be given.
Task4:Wrk in grups. Discuss and present yur ideas.
What shuld we d when a tsunami hits?D yu knw sme safety instructins?
Safety instructins:
If yu hear tsunami warning, evacuate at nce. G as high and as far as yu can.Take yur emergency kit. Drp, cver, and hld n t prtect yurself frm the pssible earthquake. Avid dwned pwer lines and stay away frm buildings and bridges.
Live t tell: Raising Awareness, Reducing Mrtality. ----United Natins Internatinal Strategy fr Disaster Reductin(2016)
Optin 1:1.Gather mre knwledge abut a mindmap t intrduce tsunami.Optin 2:Write an essay abut hw t help the peple wh have suffered frm a tsunami .