资源简介

(共19张PPT)
U3
starting out and
understanding ideas
Learning objective
1.Students can correctly confirm reading and spelling the key words and collocations in this lesson; Be able to communicate and discuss the theme of this class smoothly.
2.Through the development of teaching activities, we can cultivate students' thinking ability of analyzing and inferring the content of the text, understand the logical relationship in the article.
3.Through the study of this lesson, students can understand the influence of scientific and technological inventions on their lives and realize that teenagers can change the world through practice.
Great inventions could change our lives, in this unit, let's explore
inventions. Where dosmart ideas come from What qualities do
inventors have What drives people to invent By the end of this
unit, you will make a display board about an invention.
After completing the unit, you will be able to:
use words and expressions in the unit to talk about inventions.
use to-infinitive and -ing as object to talk about invention ideas.
explain the importance of invention.
Look at the picture and answer the questions.
1.What do you know about the differences between the lives of ancient people and ours
2.What caused these differences？
1.What do you know about the differences between the lives of ancient people and ours
There are many differences. Ancient people lived in caves or simple huts , while we live in comfortable houses and buildings. They hunted animals and gathered fruits for food , but we have different kinds of food from supermarkets. They mainly travelled on foot, while we have cars , trains , and airplanes to travel.
2.What caused these differences？
The main reason for these diferences is the development of science and technology。
Look at the pictures and answer the questions
1.What are these inventions
The inventions from left to right are the compass, the wheel, the computer, and the smartphone.
2.How have they changed our lives
The compass has helped people find directions, making exploration and navigation(航海)easier.
The wheel has been widely used in(被广泛用于)transportation, making it possible to carry heavy goods over long distances;
The computer has changed the way we work, study, and communicate. We can get information, do office work, and have online classes with it.
The smartphone has made our lives more convenientWe can use it to make phone calls , send messages, take photos, surf the internet.and use various apps at any time.
Look at the word cloud and predict, What's the passage about
The passage is about an to help people
It shows that someone is a robotic arm to offer a to those
who need it. The invention likely makes daily tasks easier for people with
disabilities and can truly their living standards.
inventing
artificial arm
designing
helping hand
improve
Read the passage and check your answer.
Order the following events in the passage.
Easton made a robot arm with blocks and fishing line.
Easton allowed people to use his design for free.
Easton and Jenny met at a science fair.
Easton made an artificial arm with a 3-D printer,.
1
4
2
3
A helping hand
1Easton LaChappelle,a 14-year-old student, stood beside his work at a science fair. It was a robotic arm. He built it out of plastic blocks and fishing line.
2“Hello," said a girl with an artificial arm, as she shook hands with Easton's work.
3This was the first time Easton met Jenny, a girl with a special condition, She was born without an arm. Her artificial arm was just a simple hook, but it cost $80,000.What's worse, children like her grow quickly and need new arms all the time.
伊斯顿·拉查佩尔
科学展览会
build...out of 用...制作
塑料积木
with +n.表伴随
连词：1.当...时
2.正如，如同
介词：作为。以、、身份
shake hands with ab.
与...握手
特殊的情况
was born with/without...
天生具有/缺乏
钩子
花费sth. coat sb.
更糟糕的是...
一直
A helping hand
4“It blew me away! l built my arm for only $300," thought Easton, “I must lend a hand to people like her."
5After the fair, Easton's room became a lab. He stayed there all dayHe always tried to improve his work. For his 16th birthday, Easton got a 3-D printer, And with it, he invented an artificial arm, It was able to move with brain signals of the user, But it wasn't good enough yet: the arm weighed 3.6 kilograms. It was too heavy for a child.
blow sb. away使某人大吃一惊
to one’s surprise
lend(sb.) a hand,帮助某人做事
try to do sth.努力做某事
3D打印机
be able to =can可能
大脑信号
be+adj.+enough to do sth.
足够...可以做某事
too+adj.+for sb.对某人来说太...
A helping hand
6Easton kept working on it, He enjoyed fixing problems one after another. And finally he hit on success at age 23. His design only weighed 0.5 kilograms and cost around $500!
7Easton's invention has helped many children. He didn't want to make money from it, He decided to post his design online... for free! People can download the design and make an artificial arm with their own 3-D printers!
8What a helping hand!
接二连三的
enjoy doing sth.喜欢做...
enjoy oneself
at age+数字=at the age of
在。。。岁时
大约
挣钱
决定做某事
download...from...从。。。下载
MIND MAP
A Helping Hand
Beginning (Paras. 1–4)
Development (Paras. 5–6)
End (Paras. 7–8)
A 14-year-old student built a robotic arm out of plastic blocksand fishing line.
He met a girl who was born without an arm at a science fair.
He thought he must lend a hand to people like her.
He invented an artificial arm with a 3-D printer when he was 16.
But it wasn't good enough yet.
Finally he hit on success at age 23.
His invention has helped many children.
He decided to post his design online for free!
Complete the chart with the words and expressions from the passage
Where: At a(n) 1
Who: Jenny, a girl born 2
Problem to solve: Jenny's artificial arm cost $80,000. But children like her ,so they always need new arms.
How did Easton come up with the idea
What are Easton's inventions
Age 14: A robot arm, lt was made from plastic blocks and4
Age 16: An artificial arm.lt could 5 with brain signals, but weighed 3.6 kilograms.
Age 23: Another artificial arm. lt6 just 0.5 kilograms and around $500.
science fair
without an arm
grow quickly
fishing line
move
cost
weighed
What did Easton do with his invention
He decided to post his8 online for free.People could make an artificial arm with their own with 3-D printers.
design
Think and share
1.How would Jenny's life change with Easton's invention
With Easton's invention, Jenny could have a lighter and much cheaper artificlal am. lt would be much easier for her to use and replace her artificial arm as she grows up.
2.What can you learn from Easton
We can learn from Easton that we should be creative and persistent(坚持不懈的)in solving problems. We should also be kind and willing to help others.
Board Design
Age Invention Details
14 Robot arm Plastic blocks + fishing line
16 Artificial arm (3-D printer) Brain signals, 3.6 kg (too heavy)
23 Improved artificial arm 0.5 kg, $500, free design online
A helping hand
Homework
Write a short paragraph about an invention you want to create, using to-infinitive or -ing forms (e.g., I want to invent a... to help...).
THANK YOU

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