高一英語必修3 Unit 4教案
conclusion:
before making a trip into space, we’d better make full preparations, such as : collecting as much information about the space as possible; checking whether you have got the proper spacesuits or not; making sure of all the safety rules; not leaving the spaceship alone unless the space guide tells you to; paying attention to recording some important time during the space traveling and so on.
step 3. listening (workbook)
purpose: to develop ss’ listening ability.
to gain some experience of traveling in space
1. get ss to look through the exercises before giving them the listening material. at the same time remind them of the new and key words: astronaut, experience, instruments, pilot, air force, rocket.
2. ask ss to look through the questions of the first part and listen to the tape carefully. play the tape twice. for the first time, just ask ss to listen for the gist. for the second time, ask ss to prepare to do the exercises. if time permits, play again in order to give the class a chance to check or complete their exercises.
period 2 pre-reading, reading & comprehending
teaching goals:
1. to enable ss to better understand the theory about the origin of the universe and life on the earth — the “big band” theory.
2. to enable ss to concern about the future of life on the earth.
step 1. pre-reading
purpose: to arouse ss’ interest in learning about some relative information about the universe.
1. show some pictures to the class and encourage ss to say some information about how life began on the earth. they can say some relative legends, folk tales or scientific theories about the topic.
the solar system is made up of the sun and the objects that orbit it.
the earth’s atmosphere
for reference:
some ideas about the beginning of the universe:
● pan gu turns into a myriad of (各種) things 盤古化生萬物
● pan gu separates the sky from the earth 盤古開天地
● nu wa makes men 女媧造人
conclusion and leading-in:
but these ideas are all not the correct and scientific ideas. do you know the scientific idea of the development of the life on the earth? then we’d better come to the text.
step 2. fast reading
purpose: to get the gist of the passage.
to correctly understand some information given in the text.
1. ask ss to read the text quickly and try to get the main idea of the text.
suggested answer:
the main idea of the text is the title — how life began on the earth.