高一第16单元 reading 课件[下学期]

课件29张PPT。Unit 16Scientists at workPre-readingLook at the pictures.
Who are they? Are they famous?
What are they famous for?EdisonElbert EinsteinBellHowkingNewtonDarwinMadame CurieLaite BrothersAre these discoveries important?Life without electricity Find the words that fit the descriptionsc______ allow(heat,electricity etc) to pass into
a battery.
p______ show that sth is true or certain by
means of argument or evidence(证据)
t______ pull (sth) forcibly apart or away or to
pieces
f______ firmly attach sth to sth or two things
together
e______ make sth clear or easy to understand
onductroveearastenxplainTask 1Read the text quickly and try to get the main idea of each paragraph.While-reading to make a special kite for the experiment?should be done to get ready for the experiment?to do the experiment with a kite, a key and a condenser?did Franklin succeed in doing the experiment?did Franklin do the experimentWhyFranklin’s famous kite experimentPara 1
Para 2
Para 3

Para 4
Para 5
Para 6IntroductionHowHowWhatHowLook at the textbook and listen to the tape carefully, then try to complete the following chart.Task 2A record of the experimentKite ExperimentFranklin and his sonLightning and electricity are the same.a kite, a key, some really bad weather and a condenserIn June 1752Read the text carefully, then divide the passage into three parts.Task 3Part I:
Part II:
Part III:para 1-3para 4para 5-6The description of the experiment.The equipment of the experiment.The tips of the experiment.DemonstrationDraw a sketch(草图) of the kite which was used in the experiment according to the instruction.Instruction① A small cross of two pieces of light wood.
② Tie the corners of a handkerchief to the points of the cross.
③ Add a tail to the frame.
④ Tie a long string to the cross.
⑤ Fix a sharp piece of metal to the top of the longer stick of the cross.
⑥ Fasten a key to the end of the long string.
⑦ Tie a silk ribbon to the string.sharp piece of metalOne foot or moreLong string“cross”tailSilk ribbonPost-reading Exercise 1Multiple choiceFranklin made the kite of silk because ______.
wet silk does not conduct electricity
silk kite flies high
silk kite will last longer in weather with rain and strong winds
silk kite is cheaperC. silk kite will last longer in weather with rain and strong winds2. Which is not stated but can be inferred from the text?
Franklin did the experiment with the kite.
Franklin’s experiment with electricity was dangerous.
Franklin failed the experiment again.
The experiment was conducted in bad weather.B. Franklin’s experiment with electricity was dangerous.3. Which of the following is in the correct order?
①The experiment proves that lightning and electricity are the same.
②The kite flew high in the rainy sky.
③He made a silk kite.
④Very sharp piece of metal was fixed.
⑤A key was fastened to the end of the string.
⑥ A ribbon was tied to the string. ④ ⑤ ⑥ ③ ② ① B. ③ ④ ⑤ ⑥ ② ①
C. ④ ③ ⑤ ⑥ ① ② D. ③ ④ ⑤ ⑥ ① ②True or FalseIn 1752 scientists already knew what electricity is .
Franklin was helped by a friend to do the experiment.
Franklin made the kite of silk because wet silk does not conduct electricity.
A condenser was used in the experiment to store electricity.
The key tied to the string was put into the door to stop the kite from flying away.
TFFTFExercise 2The pictures below show how Franklin do his experiment. Pick out the correct ones.Exercise 3
HomeworkTry to retell the text after class.
Search and Collect more information about your favourite scientist at work on the internet.
Bye-bye!