人教课标版B5 Unit 1 Great Scientists Warming up and Reading+42张

课件42张PPT。人教课标
高二 必修 5 Unit 1ReadingUnit 1 Great scientists There are some great scientific achievements that have changed the world. Can you name some of them? What kind of role do they play in the field of science? Do these achievements have anything in common? Match the inventions with their inventors below before you answer all these questions. Warming UpAlexander Bell electricity
Thomas Edison the First telephone
Laite Brothers the electric Lamp
Madame Curie black holes in Universe
Franklin Theory of Gravity
Steven Hawking the First Plane
Elbert Einstein Radium
Isaac Newton the Theory of RelativityWho is he?He is … Archimedes (阿基米德)Which scientist discovered that objects in water are lifted up by a force that helps them float?Charles Darwin.Who is he?He is … Who wrote a book explaining how animals and plants developed as the environment changed?Thomas Newcomen.Who is he?He is … Who invented the first steam engine?Gregor MendelWho is he?He is … Who used peas to show how physical characteristics are passed from parents to their children?Marie CurieWho is he?She is … Who discovered radium?Thomas EdisonWho is he?He is … Who invented the way of giving electricity to everybody in large cities?Leonardo da VinciWho is he?He is … Who was the painter that studied dead bodies to improve his painting of people?Humphry DavyWho is he?He is … Who invented a lamp to keep miners safe underground? Stephen HawkingWho is he?He is … Who put forward a theory about black holes? put forward 提出
e.g. He put forward a valuable suggestion
at the meeting.
Josh put forward a plan for an outing
this weekend.【拓展】
★ 我们在以前还学过表示“提出”的短语，它们是 ________ 和come up with。bring up★ 常见的put短语还有：
put away 收起来；存蓄
put off 推迟，延期
put on 穿上，戴上；上演
put out 使熄灭；生产；出版
put through 接通电话；使经历；使通过
put up 举起；修建；张贴 【小试】
选用以上短语的适当形式填空。
The suggestion ___________ by Mr.
Wang at yesterday’s meeting was a
wonderful one.
2. They decided to ______ the picnic
because of the rain.put forward put off1. Do you know how to prove a new idea in scientific research? Discuss in small groups the stages in setting out a new scientific idea. What order would you put them in?Pre-readingPlease put the
7 stages in right order according to the passage. 2. What do you know about infectious diseases? What do you know about cholera?Germany
Great BritainDeath of first cholera case in London during the 1848-49 epidemic LondonPrevious cholera epidemic in Great Britain in 1831-32The spread of cholera3. Look at the picture, the map and the title and predict the content of the reading passage. Then skim it quickly to see if you are right.ReadingJohn Snow Defeats “King Cholera”John SnowSkimmingRead the text (P2-3) quickly and complete the main idea of it.
The text is mainly about _____
______ and how he _______________.Johndefeated choleraSnowI. To prove a new scientific idea, seven stages are needed. Read the text (P2-3) carefully and fill in the blanks.Careful readingcause absorbed multipliedcuremap provesourceBroad StreetMany deaths happened here.No death happened here.The water from the pump was to blame.Public houseSmall, white, flocculent particlesThe water was from the river which had been polluted by the dirty water from London. drinking the water Polluted waterexaminedextra evidence: A woman and her daughter who lived far away but drank the water also died.I. Choose the best answer.
We know from the text that John Snow
______.
had collected information before
cholera broke out
B. felt not quite sure after he finished the
map
C. helped the woman from Broad
Street
D. became famous after defeating
cholera2. Why did John Snow use a map in his
research?
It could help him find exactly how
many people died of cholera.
B. It could help him find the source of
drinking water for people.
C. It could help him organize his ideas and
find evidence.
D. It could help him find his way in
Broad Street.3. Why was cholera called “King Cholera” in the text?
Because it caused many deaths.
B. Because it got its name from Queen
Victoria.
C. Because it was defeated with the help
of the King.
D. Because it was the most deadly
disease of its day.Post readingNumber these events in the
order that they happened.
___ John Snow began to test two theories.
___ An outbreak of cholera hit London in
1854.
___ John Snow marked the deaths on a
map. 124___ He announced that the water
carried the disease.
___ John Snow investigated two streets
where the outbreak was very severe.
___ King Cholera was defeated.
___ He found that most of the deaths were
near a water pump.
___ He had the handle removed from the
water pump.35678 Answer these questions.
John Snow believed Idea 2 was
right. How did he finally prove it?John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected
information and was able to tie cases
outside the area to the polluted water.2. Do you think John Snow would have
solved this problem without the map?
Give a reason.No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. Heidentified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause. 3. Cholera was a 19th century disease.
What disease do you think is similar
to cholera today? Why?Three diseases, which are similar today, are SARS, AIDS and bird flu, because they are serious, have an unknown cause and need public health care to solve them. Drink only water that you have boiled or treated with chlorine or iodine. Other safe drinks include tea or coffee made with boiled water and carbonated, bottled beverages with no ice.Group
Discussion Eat only food that’s been thoroughly cooked and is still hot, or fruit that you’ve peeled yourself.
Avoid undercooked or raw fish and shellfish. Avoid raw salads and vegetables.
Avoid food and drinks from street vendors. "Boil it, cook it, peel it, or forget it."Thank you!