课件34张PPT。高二人教新课标版选修八Unit 3
Inventors and inventionsWarming UpGuessing GameGuess what the invention is or who the inventor is. Warming upIt’s made of plastics and metal.
It looks like a small box with a screen and buttons on it.
With the invention you can contact someone while you are walking.40
20
30
What is it?Mobile phone The inventor is from America.
He is one of the father of inventions.
The inventor invented the bulb.40
20
30
Who is he?Edison This invention looks like a bird.
It’s made of metal.
It makes it possible for people to fly to different places in the world.
It is powered by an engine and is flown by a pilot. 30
10
20
40
What is it?Airplane This invention can help people in the street.
It looks like a tree standing beside the street.
It directs cars and trucks.
It uses colored lights. Red means stopping, green means going. Traffic lights30
10
20
40
What is it?He was a world-famous inventor from Sweden.
Here is one of his photos.
He invented dynamite (炸药).
A famous prize was named after him.
???Who is he?40
20
30
50
Alfred NobelLet's guessBrainstormingIs it a discovery or an invention ?Newton ____________gravitydiscovereddiscover/invent?Columbusthe New Continent1493,3,15discovered____________discover/invent?radiumMadame Curie _________discovereddiscover/invent?Zhang Heng ________ the seismograph
inventeddiscover/invent?
existingknowncreatedlead toare based on Reading
The problem of the snakesRead the passage quickly to find the main idea of each part.Task one Skimming Read the passage again and divide it into four parts and work out the main idea for each paragraph.Part I
Part II
Part III
Part IV(Para__)The discovery of the problem of the snakes.(Para___)The research on the approaches to solve the problem.(Para___)The attempts to catch the snakes.(Para___)The requirements of getting a patent.4-612-37-8 Read for detailsTask Two The mother was upset because a family of snakes had made their home near the house.1) What was the mother upset about?Read and answer the questions.para1Find the problemThe writer was happy because it gave her an opportunity to help her mother and invent something to catch the snakes without hurting them at the same time.2) Why was the writer happy to help
her mother?语篇理解
Choose the best answers.
1.What's the problem that the writer came across?
A.Snakes came near her house now and then.
B.Snakes seemed to have made their home near her house.
C.How to catch the snakes without harming them.
D.Her mother felt upset.CPara2 Doing researchhabitsproductskill2.Why did the writer not use powders to solve the problem?
A.Because it was an old thought pattern to use powders.
B.Because that would harm or even kill the snakes.
C.Because that would damage something else near the house.
D.Because she wanted to invent something new.Bhabitattrapcoolinglast /thirdperfumebe easily caught3.The following are the three possible approaches that the writer thought of to catch the snakes EXCEPT ________.
A.removing their habitat
B.attracting them into a trap using male or female perfume or food
C.using the natural enemies of snakes
D.cooling the snakesC1. How did the writer catch the snakes?
A. using something the snakes were
interested to attract them into a trap.
B. taking their habitat to another place.
C. placing the snakes at a low temperature for them to sleep and then caught them.
D. All the above. CRead Paras 4--6carefully and choose the best answer.2. The writer was successful to catch the
snakes in ____ attempt.
A. the first B. the second
C. the third D. everyC3. The following are used in the three attempts EXCEPT ____.
A. perfume B. a bowl
C. jelly D. ice-cubesA4. Why did cooling the snakes make
them less active?
A. Because snakes are warm-blooded
animals.
B. Because snakes like high temperature.
C. Because snakes are reptiles and their
body temperature depends on the
heat around them. CAccording to the text, which subject do you think can be given a patent?A. A new star discovered by a scientist.
B. A new novel written by Huo Da.
C. A new way to make dirty water clean.
D. A new kind of grass found in a mountain which can be used as a medicine.Para 7patentdifferentvalid18Para 8Task three SummaryTask four Discussion HomeworkTo write a composition about
how to prevent the students
from sleeping in class.