Unit 4 Amazing Science Topic 3 China is the third nation that sent a person into space.SectionC课件18张

课件18张PPT。Unit 4 Amazing ScienceTopic 3 China is the third nation that sent a person into space. Section CIn space, computers have been used to control the speed and direction of a spaceship. Besides, computers are very useful in the business.They are used to place and cancel orders.
它们被用于下单和取消订单。adv.
prep. 除此之外；还…In factories, robots are controlled by computers that are like human brains.n. 机器人A tiny computer which is inside patients’ bodies
can keep our hearts beating.
adj. 极小的，微小的 prep. 在…里面；
adv. 在里面There is no doubt that computers can be used in the medical care.毫无疑问The Importance of ComputerTask 1 Read the title and get the main idea.
Tip1
The title is helpful to find out the main ideas.Task 2 Underline the topic sentence of each paragraph.
Pra.1Pra.2Pra.3?In workIn daily lifeProblemsTask3 Read carefully and draw the mind-map with key words.computerswork Pra.1&2control the speed and direction of a spaceship
help doctors find
diseases easily
control the robots
in factories
help businessmen place
and cancel orders
Tip2 Mind map can make you understand the passage more clearly and completely.
Task3 Read carefully and draw the mind-map with key words.computerswork Daily lifePra.1&2play games, watch movies
do shopping and do business at home
send emails, chat on lineTask3 Read carefully and draw the mind-map with key words.work Daily lifePra.3get headaches or sore eyes
No time to study or excise.
Something is not
true or good.
computersSomething on the
internet is not true or good.The importance of computerswork control the speed and direction of a spaceshiphelp doctors find
diseases easilycontrol the robots
in factorieshelp businessmen place
and cancel orders Daily lifeplay games, watch movies do shopping and do business at home send emails, chat on lineTask 5 Retell No time to study
or excise.get headaches and sore eyes 1 Why does the writer wrote the problems shortly and briefly（简短地）？We should focus on the key points.Task 1 Think it over! Nowadays, the smart phones bring so much convenience to our study and life, while there are so many students lost themselves in them.
Task 2 ProjectGroup WorkWhat do you think of the cell phone among the students?
What are the usage and problems?
1problemsDiscuss and draw your mind-map.1Task 3 Homework Write a composition based on your mind-map.
The Importance of Smart PhonesEvery coin has two sides.THANK YOU We should use them properly.