"Marie Curie's Three Grams of Radium" PPT Courseware 2

Description

"Marie Curie's Three Grams of Radium" PPT Courseware 2

New course introduction

A highly radioactive element that constantly emits large amounts of heat. Radium can generate sulfates, carbonates, chromates, and iodates that are only slightly soluble in water; chlorides, bromides, and hydroxides of radium are soluble in water. There are 13 known isotopes of radium, 226Ra has the longest half-life of 1622 years. Radium can emit two kinds of rays, α and γ, and generate radioactive gas radon. The rays emitted by radium can damage and kill cells and bacteria. Therefore, it is often used to treat cancer, etc. In addition, the mixed preparation of radium salt and beryllium powder can be used as a neutron radiation source to detect petroleum resources, rock composition, etc. It is one of the materials of atomic bomb.

Introduction to Marie Curie

Marie Curie (1867-1934), formerly known as Marie Sklodowska, was a Polish-French physicist who was the first woman to win the Nobel Prize. She worked hard and received a master's degree in physics in 1893 and a master's degree in mathematics in 1894. In 1903, the Curies won the Nobel Prize in Physics. In December 1911, Marie Curie won the Nobel Prize in Chemistry. Marie Curie dedicated her life to science for the happiness of mankind and never cared about personal gain and honor. She has received as many as 10 types of bonuses, 16 types of medals, and more than 100 honorary titles.

learning target

1. Master new characters and new words.

2. Read the text and understand the great personality and noble spirit of Marie Curie as a scientist through the story of three grams of radium.

3. Find out which things in the text show Mrs. Curie’s great contribution to mankind, which things show Mrs. Curie’s economic difficulties, and have a preliminary understanding of the benefits of writing the text this way.

I can read the following words

léi lòu lán� hón�

laser crude franc promotion

juān zèn� ái qiān

donate gift cancer sign

�uàn nán�

Rich and rich, give money to help

Learn words:

Dignified and elegant: (female behavior and expression) dignified and solemn, graceful and not vulgar.

Simple: (house equipment, etc.) simple and crude; incomplete.

Patent: The law protects the creator and inventor's exclusive benefits for creating an invention within a certain period of time.

The rich party A: A: ranks first. The richest people in this area.

antonym:

Elegant (vulgar) Simple (luxurious) Confused (understood)

Stubbornness (flexibility) harvest (loss) giving up (retention)

Selfless (selfish)

Being rich (poor) and giving money to help (having nothing)

synonyms

dignified (solemn) elegant (elegant) setbacks (twists and turns)

shabby (crude) inferred (guessed) distressed (poverty)

Confused (confused) Donated (donated) Stubborn (stubborn)

Carry forward (carry forward) selflessness (selfless)

First reading text

overall perception

Reading text perception

1. What is the text about?

2. In what order are the texts written?

Classroom Inquiry (1)

think

Could you please tell me what is the main thing about the article?

Classroom Inquiry (2)

Read the text silently and think about the order in which this article is written?

think

1. The title of the article is "Marie Curie's Three Grams of Radium". Is there any description of the three grams of radium in the article?

2. Considering Marie Curie’s situation, what questions do you have?

Classroom Inquiry (3)

The dignified and elegant Marie Curie and the extremely simple laboratory.

From this sentence, how do you understand the greatness of Madame Curie?

Wonderful appreciation

1. Why is it said that these three grams of radium show the great personality of a scientist? (discussion question)

From the story of three grams of radium, we can see that the scientist Marie Curie was a scientist with very noble moral character but a very difficult material life. Her ideological realm was so lofty. When she and her husband extracted the first gram of radium, they believed that this scientific research result should "belong to all mankind", and then "unreservedly announced the radium "purification method" without considering that this is a great opportunity for them to obtain huge wealth. Marie Curie did not seek personal gain, so that her material life fell into a difficult state. Her laboratory was very simple and she could not even afford one gram of radium needed for experiments. She had to rely on donations from the public. Therefore, from the story of these three grams of radium, we can see the great personality of this great scientist.

2. Which three grams of radium does Marie Curie’s three grams of radium refer to?

Answer: Three grams of radium refers to: one gram of radium extracted by Madame Curie; one gram of radium raised by Mrs. McLone; and one gram of radium donated by the American public to establish the institute.

3. What things in the article show Marie Curie’s great contribution to mankind?

Answer: Marie Curie discovered radium and published the purification method of radium without reservation; she established a radium research institute in Poland and carried out cancer treatment work, etc., which demonstrates Marie Curie's great contribution; the laboratory is extremely simple. , could not afford one gram of radium, etc., which also showed that Mrs. Curie was very financially distressed. Writing this way highlights the great personality of Madame Curie.

Class summary

This article tells the story of the discoverer of radium, Madame Curie, who owned three grams of radium. It praises her great character of being devoted to scientific research, dedicated to contributing to all mankind, and selfless. In order to express this theme, the author uses three Ke Lei is a clue that runs through the whole text. Grasp specific examples and describe the characters' words and deeds.

Central idea:

This article tells the story of the discoverer of radium, Madame Curie, who owned three grams of radium, and praises her great and selfless character of being obsessed with scientific research, dedicated to contributing to all mankind, and

Homework assignments and preview arrangements

1. Copy new words.

2. Read the text emotionally. And write about your feelings.

3. Change the title of the text

Keywords: Marie Curie’s Three Grams of Radium teaching courseware, Chinese S version fifth grade Chinese courseware volume 2, fifth grade Chinese slide courseware download, Madame Curie’s Three Grams of Radium PPT courseware download, .ppt format

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"Marie Curie's Three Grams of Radium" PPT courseware 4:

"Marie Curie's Three Grams of Radium" PPT Courseware 4 About Radium Radium is a very radioactive metal element. Silvery white crystal, its luster is extremely radioactive and can continuously release a large amount of heat. Radium radiation has strong penetrating power and can destroy animal tissues and kill...

"Marie Curie's Three Grams of Radium" PPT courseware 3:

"Marie Curie's Three Grams of Radium" PPT Courseware 3 Introduction to Marie Curie Marie Curie (18671934), formerly known as Marie Sklodowska, was a Polish physicist and the first woman to win the Nobel Prize. She worked diligently and obtained a master's degree in physics in 1893. In 1894...

"Marie Curie's Three Grams of Radium" PPT courseware:

"Marie Curie's Three Grams of Radium" PPT courseware Introduction to Marie Curie Marie Curie (1867-1934), formerly known as Marie Sklodowska, was a Polish physicist and the first woman to win the Nobel Prize. She worked hard and received a master's degree in physics in 1893 and 189...

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Update Time: 2024-09-30

This template belongs to Chinese courseware S version fifth grade Chinese language volume 2 industry PPT template

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