人教版高中英语必修五全套教案

英语必修 5

Unit 1 Great scientists Teaching Aims

Skill Goals

▲ Talk about science and contributions of scientists

▲ Practice expressing will, hope and suggestions

▲ Practice expressing the stages in examining a new scientific idea

Key new words and expressions The First Period Reading StepⅠ Lead-in Ask the students to think of some great inventions and inventors in history. T: Welcome back to school, everyone. I guess most of you have enjoyed your holiday. Maybe I

should say everyone has enjoyed a scientific life. Why? Because you have enjoyed the results of the

science and scientists. Now can you tell me the scientists who invented the lights, the gramophone and the computer?

S1: Edison invented the lights and the gramophone.

S2: The first computer was invented by a group of American scientists.

StepⅡ Warming up

First, ask some questions about great scientists. Second, tell all the students to play the game called

Guess Who I Am. T: You know our life is closely related to science and scientists. We benefit a lot from them.

Can you name out as many scientists as possible? T； what contributions did they make?

T: Ok, you ’ve known a lot about scientists and now let ’s play a game called Guess Who I Am. I

will show you some hints of a scientist one by one, and you guess the name of the scientist. Let ’s

see which group will do the best. 1. I lived in ancient Greek. 2. I was a mathematician. 3. I discovered that objects in water were lifted up by a force that helped them float.

Answer: Archimedes 1. I lived in Britain. 2. I published The Origin Of Species . 3. I could explain how animals and plants develop as the environment changed.

Answer: Charles Darwin 1. I am Englishman

2. I ’ve worked in astronomy.

3. I ’ve put forward a theory about black

holes. Answer ； Stephen Hawking 1. I was a Chinese.

2. My invention had eight dragon heads round the top with eight balls in their mouths.

Around the bottom were eight frogs directly under a dragon ’s mouth. 3. My invention was the earliest instrument that told people where earthquakes happened.

Answer: Zhang Heng 1. I was an American. 2. I invented electric light bulb 3. I invented the way of giving electricity to everybody in large cities.

1

Answer: Thomas Edison

1. I was a lady and born in Poland. 2. I received two Nobel prizes. 3. I discovered radium.

Answer : Marie Curie

Step Ⅲ Pre-reading

Get the students to discuss the questions on page 1 with their partners. Then ask the students

to report their work. Encourage the students to express their different opinions.

T: Now, class, please look at the slide. Discuss these questions with your par tners. Then I ’ ll ask some

students to report their work.

Show the following on the screen:

1. What do you know about infectious diseases? 2. What do you know about cholera? 3. Do you know how to prove a new idea in scientific research? 4. What order would you put the seven in? Just guess.

Draw a conclusion think of a method collect results

make a question find a problem analyse the results

find supporting evidence

T: Well done! When we want to solve some problems, first we should find out the problem, do

some research on it, prove your findings, and then make a conclusion. This is a scientific and

objective way of researching. Now let ’ s see how doctor John Snow did his research.

Step Ⅳ Reading

T: Now lets read the title and the picture and guess what the passage may tell us.

T: The effect of cholera in the nineteenth century London was devastating. Many people died

without knowing the reason. It was doctor John Snow who saved the people. Please look at the

screen. Let ’reads the whole passage quickly and find the number below and the relevant

happenings in the passage.(Competition among groups)

Two theories The first suggested that ⋯ multiplied in the air;. The second suggested ⋯ absorb

this disease into their bodies with their meals.

In 1854 Another outbreak hit London.

500 , 10 More than 500people had died in 10 days.

16, 37, 38 These numbers in Broad Street near the water pump had many of the deaths

and 40

20 ,21; 8,9 20 and 21 Broad Street and 8 and 9 Cambridge Street had no deaths ⋯ .They didn

drink the water from the Broad Street pump.

7 These families worked in the pub at 7 Cambridge Street. They didn ’drinkt the

water from the pump.

Step Ⅴ Text analyzing

Ask the students to analyze the text in groups.

T: Please look at the chart on the screen. The chart shows that each paragraph of the text explains

John Snow’ sstages in his research. Please read the text and find out the general idea of each