高中英语 Unit3《Inventors and Inventions》using language课件 新人教选修8.ppt

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1、2.Speaking&Writing1.Listening&Discussing2021/8/11 星期三11.Listening&discussing2021/8/11 星期三2Listening on Page 62Read these questions before listening and discuss them in pairs.1.What functions are already included on a mobile phone?2.Which ones do you find useful?3.What else do you expect a mobile pho

2、ne to do for you?2021/8/11 星期三3 a mobile that“think”a mobile that spends your money a mobile that can teach you English a mobile that chooses your holiday Listen to the tape and tick the descriptions you have heard.2021/8/11 星期三4 a mobile that makes tea a mobile that is a computer a mobile that wake

3、s you up a mobile that orders your food2021/8/11 星期三5Listen to the tape again and answer these questions.1.Which mobile does Mary think she will buy and why?2.Mary wants to buy the mobile that turns itself on when it receives important calls.She missed three yesterday when her mobile was switched/tu

4、rned off.2021/8/11 星期三62.What extra applications do mobiles have now?Mobiles can take photographs and act as a computer now.2021/8/11 星期三73.What extra applications will they have with the 3-G mobiles?They will be able to monitor how you use your phone.They will book holidays,choose the airline,hotel

5、 and an appropriate place to stay.They will authorize paying for them too.2021/8/11 星期三84.Why is Mary worried?Mary is worried because it might spend her money.2021/8/11 星期三95.What advantages do the 3G mobiles offer?The advantages are that it helps people who are busy at work to order goods at the ch

6、eapest price or book holidays,air tickets,etc.6.What do you think might go wrong?2021/8/11 星期三10Listening textWHICH ONE SHOULD I CHOOSE?Mary Brown is asking her friend,Zhang Jie,for advice.MB:Hallo,is that Zhang Jie?This is Mary.Im thinking of buying a new mobile phone.What do you suggest?2021/8/11

7、星期三11ZJ:Hallo Mary.Im happy to help.Its lucky you could get through.Ive been having some trouble with the line and I keep getting cut off.If the line goes dead,ring me back immediately on my mobile and it should be OK.Now what do you want your mobile to do?2021/8/11 星期三12MB:Well,Ive heard about mobi

8、les that are computers and can take photographs as well.Do you think theyre a good idea?ZJ:Mmm.Yes,theyre useful.I can use the Internet even when Im on the train.2021/8/11 星期三13MB:So you suggest one like that then?ZJ:Not necessarily.It seems therell be some new mobile phones coming on the market nex

9、t year.Theyre going to be even more powerful than the ones on the market now.2021/8/11 星期三14MB:What are they going to do?ZJ:Oh,youve no idea what theyre planning!These new phones will be able to organize your life.Theyre called 3G phones because theyre the third generation of mobile phones.They“thin

10、k”for you.2021/8/11 星期三15MB:How can they do that?ZJ:Well,theyll be able to monitor how you use your phone.When you plan a holiday,the phone will know which airline you like to fly with,and will book the seats and the hotel.Then itll pay for you.2021/8/11 星期三16MB:Wow!Im not sure Id be happy with that

11、!I dont like the idea of a machine spending my money.ZJ:Well,many businesses already use mobile phones to buy goods.They leave them to order goods when they are at their cheapest.2021/8/11 星期三17MB:Do they really?Well,I never!What I need is a mobile to stop me missing important calls.I missed three y

12、esterday because my mobile was switched off.2021/8/11 星期三18ZJ:You can have that too.Theres a new mobile coming out soon that will turn itself on when important calls come through.2021/8/11 星期三19MB:Are you sure?If thats the case,thats the one for me!Thank you,Zhang Jie,I think Ill wait for that one.G

13、oodbye.ZJ:Goodbye.2021/8/11 星期三202.speaking&writing2021/8/11 星期三21 Look at these Chinese Look at these Chinese inventions on P68 in pairs inventions on P68 in pairs and discuss what you and discuss what you know about them.know about them.2021/8/11 星期三222021/8/11 星期三232021/8/11 星期三242021/8/11 星期三25

14、Think about what they were used for and the date they were invented.Collect the information by doing some research.Fill in the chart and prepare to talk about one of the inventions to the class.2021/8/11 星期三26What was its possible use?Why?When and where did it appear in Europe?1 An abacus is used to

15、 calculate mathematical problems including equations.It is more efficient than using the brain alone.It was never used in the West,but it is closest in function to a modern personal calculator.2021/8/11 星期三27What was its possible use?Why?When and where did it appear in Europe?2 The printing press wa

16、s used to print messages from the Emperor to the people.It helped the efficiency of government.Gutenburg(1398-1468)began to print books on his press about 1450AD in Germany.2021/8/11 星期三28What was its possible use?Why?When and where did it appear in Europe?3 A water-powered clock was used to measure

17、 the position and movement of the stars in the sky.It dates back to the Northern Song Dynasty.The West did not even discover the sun was the centre of the universe until Copernicus in the fifteenth century AD.2021/8/11 星期三29 You have been asked to write an entry for an encyclopedia about one of thes

18、e three Chinese inventions.Choose one and prepare to write your report.You will include a photograph or drawing,but you must explain some important points in your report:Writing2021/8/11 星期三30a description of the object what it was used for how it was used when it was invented2021/8/11 星期三31 Make su

19、re that each point is a new paragraph.Make the first sentence of each paragraph a topic sentence and then add all the information.Finish the report by station when it was produced in China and when it was found in Western countries.2021/8/11 星期三32A sample version:The abacus is typically constructed

20、of various types of hardwoods and comes in various sizes.The frame of the abacus has a series of vertical rods on which a number of wooden beads are allowed to slide freely.A horizontal beam separates the frame2021/8/11 星期三33into two sections,known as the upper deck and the lower deck.The standard a

21、bacus can be used to perform addition,subtraction,division and multiplication.The abacus can also be used to extract square-roots and cubic roots.2021/8/11 星期三34 The abacus is prepared for use by placing it flat on table or ones lap and pushing all the beads on both the upper and lower decks away fr

22、om the beam.The heads are manipulated with either the index finger or the thumb of one hand.Each head in the2021/8/11 星期三35upper deck has a value of 5;each beads in the lower deck has a value of 1.Beads are considered counted,when moved towards the beam that separates the two decks.After 5 heads are

23、 counted in the lower deck,the result is carried to the upper deck;after both heads in the upper deck are counted,the result 10 is2021/8/11 星期三36then carried to the left-most adjacent column and so on.Floating point calculations are performed by designating a space between 2 columns as the decimal-p

24、oint and all the rows to the right of that space represent fractional portions while all the rows to the left represent whole number digits.2021/8/11 星期三37 The abacus is one of many counting devices invented to help count large numbers.The earliest counting device was the human hand and its fingers.

25、Then,as larger quantities(larger than ten human fingers could represent)were counted,various natural items like pebbles and twigs were used to help count.2021/8/11 星期三38Merchants who traded goods not only needed a way to count goods they bought and sold,but also to calculate the cost of those goods.Until numbers were invented,counting devices were used to make everyday calculations.2021/8/11 星期三392021/8/11 星期三40