初中英语D Being thankful (Writing & Discovery)教学演示ppt课件

这是一份初中英语D Being thankful (Writing & Discovery)教学演示ppt课件，共21页。PPT课件主要包含了S O S，···---···，HELP， 15 19，S O S等内容，欢迎下载使用。
Learning bjectives
通过本课时学习，学生能够：1. 获取有关求助信号SOS以及聋哑人如何用手语向别人寻求帮助的 信息；2. 运用阅读技巧获取关键信息，能够准确回答与文本相关的问题；3. 思考并尝试发现其他可能的求救信号及其应用场景；4. 增强安全意识，认识到求救信号在紧急情况下的重要性。
What is the wman talking abut?
1. D yu knw what’s in the picture?
Mrse Cde(摩尔斯电码)
Mrse cde is a way t send messages using shrt and lng signals. These signals are called dts (.) and dashes (-). Each letter f the alphabet and each number has its wn cmbinatin f dts and dashes.
2. Can yu write the Mrse cde fr SOS based n the picture?
Lk and write
3. Can yu write the Mrse cde fr HELP based n the picture?
···· · ·-·· ·--·
Lk and find
4. Can yu find the letters represented by “191519” in the picture?
5. Can yu write dwn what these numbers represent?
0912152205251521
SOSThe best-knwn signal fr help may be “SOS”. It’s an internatinal signal that can be used in any emergency. It cmes frm the Mrse cde, which uses dts and dashes, s it’s nt the shrt frm f any English wrds. Hwever, it des have a less-knwn frm— “191519”, which are the psitins f “S”, “O”, “S” in the 26 English letters.
Signals fr help
Skim the text and answer the questin.
Sign languages fr the deaf-muteSign languages allw the deaf-mute t ask fr help, but they vary frm cuntry t cuntry. In China, shwing yur palms ut and flapping twice means “help”, but in America, yu have t put a thumb up n yur ther palm t deliver the same message.
What tw signals fr help can yu find in the text?
Read SOS and answer the questins.
1. Where des the SOS signal cme frm? 2. What des Mrse cde use?2. Is SOS the shrt frm f sme English wrds? 3. What des “191519” represent in the text?
It cmes frm the Mrse cde.
N, it’s nt the shrt frm f any English wrds.
The psitins f “S”, “O”, “S” in the 26 English letters.
It uses dts and dashes.
Hw can we send Mrse cde in ur daily life?
Read sign languages fr the deaf-mute and match the picture with the cuntry.
Read again and answer sme questins.
1. What allw the deaf-mute t ask fr help? 2. Are sign languages the same all ver the wrld?2. Hw can yu use sign language t shw “help” in China? 3. Hw can yu use sign language t shw “help” in America?
Sign languages.
Shw yur palms ut and flap twice.
Put a thumb up n yur ther palm.
N, they vary frm cuntry t cuntry.
Let’s read the text ludly tgether.
D yu knw any ther signals fr help?
Bdy signalsFr example, raise yur arms abve yur head, and keep swinging and waving, especially when yu see a rescue plane passing by.
Smke r fire:Cvering the fire with sme green branches with water will prduce white smke, which can be seen several kilmetres away. If rubber is added t the fire, black smke will be prduced.
Shuting r calling fr helpCalling ut “Help!” in a lud, clear vice is ne f the mst basic and direct frms f signaling fr help.
Three shrt whistle blastsBlw a whistle r make a lud sund (e.g., using a hrn) in three shrt bursts, fllwed by a pause, and repeat.
Using a “help” flagA flag (r any brightly clred clth, shirt, r bject) can be used as a signal fr help. The persn waves it in the air t attract attentin.
Mirrr signalA small mirrr r any reflective surface can be used t reflect sunlight, creating a visible flash that can be seen frm a distance.
Night signalA glw stick r flashlight can be used t create visible light that attracts attentin. At night, a flashlight can be flashed in SOS patterns.
Grund signalYu can create large grund signals that can be seen frm the air, such as spelling ut SOS with rcks, lgs, r any ther materials.
Wrk in grups t chse ne f the emergency situatins, use yur knwledge t send ut signals fr help, and act it ut.
A (the injured): My leg is bleeding! We need t send a signal fr help.B (the captain): Use the flashlight! Three shrt, three lng, three shrt—that’s SOS in Mrse cde!C: ...
After learning this lessn, I can
send signals fr help when I’m in an emergency situatin.
knw sme signals fr help.
1. Gather mre infrmatin abut the signals fr help, which can be texts, pictures r vides, and share it in the next class. 2. Write a shrt article under the title f Signals fr Help, and list at least three different signals fr help and hw they are used.