人教版高一英语必修1Unit4全套课件

Functional Items
Talking about past experiences Expressing thanks
Grammar
Learn to use attributive clause: (以that, which, who 和whose 为引导）
Ability Goals
Difficult Points
1. Try to know the ways to rescue in a disaster.
2. Try to develop the ability of speaking.
Warming Up
Compare the two pictures, then have a discussion about the earthquake's harm to the people with your partner.
Emotion Goals
Have a scientific attitude towards disaster, and grasp more knowledge about how to deal with it.
Important and Difficult Points Important Points
Lead-in
How many natural disasters do you know?
typhoon
Introduction of Typhoon
Pacific typhoon refers to tropical cyclones forming in the northwestern Pacific Ocean. Other tropical cyclones include hurricanes that form over the Atlantic Ocean, Caribbean Sea, the Gulf of Mexico, or the Pacific Ocean north of the equator and east of the Date Line. The basin is demarcated within the Pacific Ocean from Asia, north of the equator, and west of the international date line. Storms from the Eastern and Central Pacific crossing the date line are re-designated as typhoons. Typhoon paths follow three general directions: -Straight: A general westward path affects the Philippines, southern China, and Vietnam. -Recurving: Storms recurving affect eastern China, Korea, and Japan. -Northward: From point of origin, the storm follows a northerly direction, only affecting small islands.
How many natural disasters do you know?
volcano
How many natural disasters do you know?
fire
How many natural disasters do you know?
tsunami
Introduction of Tsunami
How many natural disasters do you know?
sand storms
Learning Goals
Knowledge Goals Topic
Basic knowledge about earthquake How to protect oneself and help others in disasters
A tsunami is a series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale. Earthquakes, landslides, volcanic eruptions and large meteorite impacts all have the potential to generate a tsunami. The effects of a tsunami can range from unnoticeable to devastating. The term tsunami comes from the Japanese language meaning harbor and wave. Although in Japanese tsunami is used for both the singular and plural, in English tsunamis is well-established as the plural. The term was created by fishermen who returned to port to find the area surrounding the harbor devastated, although they had not been aware of any wave in the open water. A tsunami is not a sub-surface event in the deep ocean; it simply has a much smaller amplitude (wave heights) offshore, and a very long wavelength (often hundreds of kilometers long), which is why they generally pass unnoticed at sea, forming only a passing "hump" in the ocean.
How many natural disasters do you know?
thunderstorm
How many natural disasters do you know?
flood
Introduction of Flood
Flood happens when an area of land, usually low-lying, is covered with water. The worst floods usually occur when a river overflows its banks. Floods happen when soil and vegetation cannot absorb all the water ; water then runs off the land in quantities that cannot be carried in stream channels or kept in natural ponds or man-made reservoirs. Periodic floods occur naturally on many rivers, forming an area known as the flood plain. These river floods usually result from heavy rain, sometimes combined with melting snow, which causes the rivers to overflow their banks. Coastal areas are occasionally flooded by high tides caused by severe winds on ocean surfaces, or by tidal waves caused by undersea earthquakes. There are often many causes for a flood.
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Compare the two pictures, then have a discussion about the earthquake's harm to the people with your partner.
Enable to write a small article to describe an event. Develop the ability to get the message from different ways, just like the video. Then try your best to use the message in your article.
congratulation jቤተ መጻሕፍቲ ባይዱdge
express cyclist
Useless
shock
rescue
Expressions:
1. have time to do 有时间做某事 2. happen to do 碰巧做某事 3. shake hands with sb 握手 4. burst into tears/ laughter 突然哭/笑起来 5. in ruins 成为废墟 6. cut across 穿过、横穿 7. blow away 吹走、刮走 8. fall down 倒塌 9. rescue workers 救援人员 10. be pleased to do 乐意做某事 11. judging….from 根据……来判断