"Nanotechnology is all around us" PPT (Lesson 1)

Description

"Nanotechnology is all around us" PPT (Lesson 1)

Part One: Learning Objectives

1. Recognize 12 new characters such as "ping, pong and support", and be able to write 15 new characters such as "na, support and box". Understand words composed of new words. (emphasis)

2. Able to read texts accurately and fluently. (emphasis)

3. Understand the scientific terms in the text. (difficulty)

In math class, the smallest unit of length we learn is the millimeter. Today we are going to get to know a length measurement unit smaller than a millimeter - nanometer. Let's go into the text "Nanotechnology is all around us" to learn about it.

Nanotechnology is all around us PPT, part 2: Introduction to the author

Liu Zhongfan: (October 30, 1962——), born in Jiutai, Jilin. Physical chemist. In 2011, he was elected as an academician of the Chinese Academy of Sciences. Joined Jiusan Society in 2007. He is currently a member of the Standing Committee of the 13th National Committee of the Chinese People's Political Consultative Conference, Vice Chairman of the Central Committee of the Jiusan Society, Chairman of the Beijing Municipal Party Committee, Vice Chairman of the Beijing CPPCC Committee, Director of the Nanoscience and Technology Research Center of Peking University, and President of the Beijing Graphene Research Institute.

Main academic works: "Analysis of Nanomaterials" and "Basic Research on Nanoelectronics".

Small information

Nano: Nano is a unit of length measurement. How long is one nanometer? Assume that the diameter of a hair is 0.05 mm, and it is divided into 50,000 strands on average in the axial direction. The thickness of each hair is about 1 nanometer, and 1 nanometer is 0.000001 millimeters.

Nanotechnology: refers to the technology for observing and processing atoms and molecules within the scale range of 0.1 nanometers to hundreds of nanometers.

Nanorobots: Microrobots manufactured at nanometer dimensions.

Nanotechnology is all around us PPT, the third part: I will recognize

Ping Pong has bacteria and smelly vegetables

carbon cancer rate disease focus

literacy methods

The method of recognizing and remembering similar characters

Bing (Soldier) - Ping (Ping Pong) - Pong (Ping Pong)

Radical classification and notation method

The word "cancer" with the word "疒" in it is generally related to the disease.

Nanotechnology is around us PPT, part 4: word explanation

Stealth fighter: It coats the fuselage with a material that efficiently absorbs radio waves, making it impossible for radar to track it.

Sentence: My dream is to fly a stealth fighter.

Radar: radio detection and ranging.

Sentence: The invention of radar was inspired by bats.

Lesion: The site where the disease is concentrated or the main site of a complex disease or infection.

Sentence: Grandma went for a physical examination. The doctor said that no changes could be seen in the tissue of the lesion.

Nanotechnology is all around us PPT, Part 5: Self-reading tips

1. Read the text 2-3 times, read the pronunciation of the characters correctly, and read the sentences thoroughly.

2. Think about it: What is nano? What is nanotechnology?

Read paragraphs 1-2 of the text aloud and think: What is nano? What is nanotechnology?

A nanometer is a very small unit of length, 1 nanometer is equal to one billionth of a meter.

Nanotechnology is a science that studies and utilizes the characteristics of these substances between 1 nanometer and 100 nanometers to benefit mankind.

method of comparison

If you put a small ball with a diameter of 1 nanometer on a ping pong ball, it is equivalent to placing a ping pong ball on the earth, which shows how small nanometers are.

What is nanotechnology?

The research objects of nanotechnology are generally between 1 nanometer and 100 nanometers. Not only are they invisible to the naked eye, but even ordinary optical microscopes are unable to do anything. This nanoscale substance has many novel properties. Nanotechnology is a science that studies and uses these properties to benefit mankind.

Given that

Asking a question is a common rhetorical technique, that is, asking a question, asking it knowingly, and answering it yourself.

Questions can be used at the beginning of an article to attract attention; they can also be used in the middle to connect the previous and the next. The correct use of questions can attract attention and inspire thinking; it can make the article clear-cut and compact in structure. For example, when explaining what nanotechnology is in the second natural paragraph, the rhetorical method of questioning is used.

Nanotechnology is around us PPT, Part 6: Classroom exercises

1. Read Pinyin and write the words.

zhì liàng yōng yǒu zhǐ xiāng jiàn kāng

( ) ( ) ( ) ( )

xì bāo jí kǔ yù fáng bìng zào

( ) ( ) ( ) ( )

2. Find a group whose writing is completely correct and put a check mark.

1. Millions of years of deterioration, fine packaging, and a similar smell ( )

2. Keep fit and strengthen your body to prevent disease lesions ( )

3. Happiness and well-being, Jiancai, vague possession ( )

4. Prevent micro-infectious disease, safe, germination rate, preparation ( )

Keywords: Free download of PPT courseware for the fourth grade Chinese language volume 2 of Ministry of Education Edition, nanotechnology is around us PPT download, .PPT format;

For more information about the "Nanotechnology is Around Us" PPT courseware, please click the "Nanotechnology is Around Us" ppt tag.

"Nanotechnology is all around us" PPT (Lesson 2):

"Nanotechnology is all around us" PPT (Lesson 2) Part One: Learning Objectives 1. Understand the uses of nanometers and cultivate the spirit of loving and studying science. (Key Points) 2. Understand the method of introducing scientific knowledge in simple and easy-to-understand terms. (Difficulty) What is Nano? What..

"Nanotechnology is all around us" PPT courseware:

The first part of the PPT courseware "Nanotechnology is Around Us": First Reading Perception Writer's business card: Liu Zhongfan, born in October 1962, native of Jiutai, Jilin, physical chemist, doctoral tutor of Peking University, academician of the Chinese Academy of Sciences, developing country Academician of the Academy of Sciences...

"Nanotechnology is all around us" PPT (second lesson):

"Nanotechnology is Around Us" PPT (second lesson) Part One: Learning Objectives 1. Read the text emotionally and understand the main content of the text. 2. Ask questions that you don’t understand and discuss them with classmates to solve them. (Key points) 3. Understand the magic of nanotechnology and cultivate...

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Update Time: 2024-09-04

This template belongs to Chinese courseware People's Education Press fourth grade Chinese language volume 2 industry PPT template

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