What other things are harmful and beneficial to human beings in our life, such as lightning and typhoons! ! Who can answer who I thank!

Give you a lesson plan, courseware, don't go to the next one, do nothing, and you can just say it?

Course plan home page

theme

Catastrophic weather

Knowledge and skills for teaching purposes:

Knowledge: ① The origin and harm of typhoon, thunderstorm and gale, fog and waterlogging.

⑤ Hail ⑤ Tornado Skills: The weather forecast map we know and learn: the symbol of typhoon, fog and thunderstorm.

2。 Methods and process: intuitive view analysis

3。 Emotional attitudes and values: cherish life.

Teaching requirements. The origin and harm of typhoon √√√√

Thunderstorm and strong wind, what should I do?

3。 Fog√.

4。 Waterlogging √ √

5。 hail

Tornado √

Design teaching method

Design: By watching the courseware, we can analyze the harm of disastrous weather and how people do it.

Experimental equipment BR/>

Symbols of fog, thunderstorm and typhoon in the working diagram

Post-teaching comments

Value-added content

In the process of teaching

Review course:

1, what kind of climate does this area belong to?

Sunny: subtropical monsoon climate

2。 What are the climatic advantages of this area?

The high temperature and rainy period is obvious and consistent, which is beneficial to the growth of rice and trees.

To the new course,

Ask students to think about the fields, your life experiences and disastrous weather;

Sunny: Typhoon, thunderstorm, gale, fog, flood, hail, tornado, etc.

Students, in these bad weather, what should we do to reduce injuries?

Today, material life has been relatively rich, just in case of accidents. Event ability is a must for everyone.

First, let's take a look at the scene after the typhoon.

. typhoon

After 2005, "Mai Sha" was in Shanghai.

Objective: To make students have a sense and a strong thirst for knowledge.

Let the students observe the source direction of the typhoon. Is it in Shanghai?

Sunny: tropical ocean, southeast wind

The multimedia demonstration of typhoon, from an abstract concept, has become intuitive, static and dynamic, showing the events and development process in the region.

What did the three students show from the typhoon in the disaster?

Clear: strong wind, rainstorm and flood.

4。 The typhoon is coming, what should we do?

The clearance is reduced, for example, students in Shanghai have a day off after the typhoon in September 2005.

Be sure to go out of places with low traffic, such as Yangpu and nanpu bridge, and it will be very small after the "Mai Sha".

When the typhoon comes, the disadvantages outweigh the advantages, but where are the advantages?

Obviously, in order to alleviate the high temperature in Shanghai, a mild typhoon provided 300 million tons of fresh water after the typhoon was severe, and the nutrient volume of river bottom and ocean increased the natural growth of production.

Two. tornado

Ask students to watch courseware under the condition of thunderstorm and strong wind;

2。 Excuse me, when does the thunderstorm happen?

Sunny: Late spring, early summer.

3。 What's the thunderstorm like? This is a safe weather forecast symbol.

?

Clear: When you are away from home, if you don't use mobile phones, computers and other electrical appliances, don't take a bath or wash, because lightning will hurt you. If you are in the wild, don't ride a bike or motorcycle, don't make a phone call, don't thunder and lightning (the sun is dead), don't carry metal objects to drive in thunderstorm weather, and don't stand in an empty highland or under a big tree to shelter from the rain.

All five students know what benefits lightning will bring.

Clear: Lightning can produce a lot of ozone. Ozone lives on the earth, and the creatures on the umbrella surface are harmed by ultraviolet rays. Lightning kills bacteria and ultraviolet rays in the air. Lightning can reduce the content of clean pathogens by 90%. Lightning nitrogen fertilizer can be synthesized and easily absorbed by human body.

3。 fog

1。 Please look at the courseware, citizens in foggy city travel.

2。 Please look at the weather forecast symbol of fog.

3。 What are the hazards of foggy weather?

Clear: reduced visibility can easily lead to traffic accidents.

For example,1987 65438+February 10, Lujiazui ferry stopped for more than four hours, and it was crowded at 9 o'clock. 16 people were killed and 7 1 people were injured.

The color change of fog angel, such as green, yellow and green.

Yellow fog can make people have visual illusion;

The car seems to move slowly in the fog. These so-called students must be in foggy days, at traffic lights or riding bicycles. We must be careful.

4。 flood

1。 Please watch the scene when the flood happens.

2。 After the flood, is it low-lying Shanghai?

Clear:

What should students pay attention to in the floods in Jinshan, Qingpu and Songjiang:

Clear: don't play with water, drink water, eat healthily and prevent diseases.

Five, long live

Observe that occurrence of hail in courseware,

What is the biggest disaster recorded in this area and what is it like (for example)

Do you know the hail time of three students?

Sunny: Hail occurs in the afternoon of April, which is rare.

Shanghai and other six disasters. tornado

1。 Please pay attention to tornadoes

Danger: The trees passed by the tornado are uprooted, people and animals are thrown into the air, and some crops, farmland and houses are damaged.

The strange rain in the world, baby rain, Yu Yu, and coin rain tornado are caused in this area.

4. For example, in Shanghai, it was recorded that on September 2, 1956, the church building on Simon Road was blown down, causing 6 1 person to die and 490 people injured, and the 1 10 ton oil storage tank was blown down at one time; 1988, a woman's tornado swept more than 500 meters, and her family's safety declined.

5。 Tornadoes are very small in Shanghai.

abstract

The study of this lesson requires students to understand the bad weather conditions in this area, enhance their awareness of survival and inspire them to learn to cherish life.

Teaching reflection:

The content of this lesson is to expand the knowledge in books. According to the actual situation in this area, the impact of severe weather typhoons and typhoons on Shanghai is highlighted. Thunderstorms and strong winds are also more common in Shanghai, especially in spring and early summer. Bad weather and fog in summer are more common in Shanghai. I use the advantages of multimedia abstraction to become intuitive. From static to dynamic, the ringing of the bell when students enter the stadium leads to these disastrous weather. What shall we do? My purpose is to make students realize that people in bad weather are fragile in life. Nowadays, the only child of students is selfish and indifferent. For example, students see a dead person in the room where the typhoon passes, and some students even laugh. I asked the students, if this kind of thing happened to me and my family, what would be the consequences? How can students discuss in order to arouse their strong sense of existence and make them cherish and treat life well? Students spend too much time discussing shortcomings.