Module 2 Amazing things.Unit 4 Numbers.Reading课件
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| 名称 | Module 2 Amazing things.Unit 4 Numbers.Reading课件 |  | |
| 格式 | zip | ||
| 文件大小 | 15.4MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 牛津上海版（试用本） | ||
| 科目 | 英语 | ||
| 更新时间 | 2017-09-07 20:10:23 | ||
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课件34张PPT。Unit 4 NumbersReading (the first period )
We are going to read about an international language – numbers. 1. add; plus a
2. equals b
3. divide c
4. zero d
5.multiply e
6. subtract; minus f-A Before you read the passage, look at the following pictures first. Put them in the order of the history of numbers. Then look at the headings on page 57 and check your answers. B Now, look at the title, the introduction, the headings and the pictures. Then on the list below, tick (?) the things you think the article may tell you. Long ago, there were different ways of writing numbers.
Zero is not a number.
Zero is an especially important number.
Machines make it easier for us to calculate.
Your brain may calculate better than a computer.
Your brain is an important part of your body.?
?
?
?
?
?very; more than usual or more than othersHe has been especially busy this week.the part inside the head of a person or an animal that thinks and feelsThat man has a fine brain.
A1 Read the whole passage on page 57 for the first time. Find the following words or phrases in the passage. Work out their meanings by yourself.A2 Choose the right meanings for these words.nearly a most b almost
invented a did not like b made for the first time
accurate
a correct b easyin a flash a in a long time b in a short time
lifetime a time that somebody works b time that somebody lives
like lightning a very quickly b very slowlyA3 Match the words in Column A with the meanings in Column B.A4 Write the words that go with the descriptions.An ancient calculating machine that is still use today.A living computer.A small machine that uses electronic power to do calculations.A very powerful machine for doing calculations.An ____________.The ____________.A ____________.A ____________.a group of things or parts that work togetherThe underground is part of Shanghai’s transport system , yes or no ?
Who invented electric light ?
make or think of something for the first timebecome bigger or more complete; make something bigger or more complete
Is our country developing very quickly? exactly right; with no mistakesCan computer give us an accurate answer ? very strong; with a lot of power Does the car have a very powerful engine?
surprisingWhat an amazing film!find the answer to a question, problem or puzzleWe can solve the maths problemgive a computer, etc. a set of instructions to make it perform a particular taskIn computer class, students will learn how to program.B Read the passage.How many languages do you know? Everyone knows at least two—his or her own language and the international language of numbers.In ancient times, people wrote numbers in many different ways, as these pictures of the number 6 show. However, they nearly all counted in the same way—in tens.Most of us use the system of numbers with numbers from 1 to 9 and 0 (zero). With these ten numbers, we can write any number from the biggest to the smallest. The Indians first invented and developed the 1 to 9 system of numbers. They then invented the zero. This was a very important invention because it made it easier to write big numbers and to calculate.One of the first calculating machines was an abacus. Abacuses are so fast and accurate that people still use them today.
A modern electronic calculator can add, subtract, multiply and divide. It can also calculate percentages and square roots.
Computers are very powerful calculating machines. In a flash, a computer can do a calculation that you could not do in your whole lifetime.Some people call the brain a living computer. Is a human brain a more powerful calculator than a computer? The following story may give an answer.
Shakuntala Devi is a lady from India with an amazing brain. Shakuntala and a very powerful computer were given this problem to solve.C. Complete answers to these questions about article. Work alone or in pairs.Which did the Indians invent first, the 1 to 9 number system or the zero? They invented the ____________________________ first.
Can you explain why we count in tens? We count in tens because we have __________ fingers.Can you complete this sentence with three words to tell us that a computer works very fast? A computer can do a calculation _____________.
Can you use two words to tell us that Shakuntala’s brain works very fast? It can do a calculation _____________.
Is a human brain a more powerful calculator than a computer? Why? __________________________________________________________________________________________D May is asking Mr Li, the writer, some questions about his article on numbers. His answers are not quite clear. Read the article again and make his answers clearer. The first one has been done for you.B Complete the summary.Ancient numbers — In ancient times, people wrote numbers _______ ____________, but they are nearly counted _____________________.
Zero — Everyone uses the __________________ 1 to 9 plus 0 (zero). The __________ invented them. _________ makes it _________ to write big numbers and to calculate.
Calculating machines — The three calculating machines: the ____________, the ____________ and the ____________ make our life easier.
Brain against computer — There was once a competition between an Indian __________ and a __________ in which the __________ won. Computers cannot do anything by themselves. ___________________ must program them first.Homework:1.copy the new words
2.Do exercises: workbook8A 37and 38
We are going to read about an international language – numbers. 1. add; plus a
2. equals b
3. divide c
4. zero d
5.multiply e
6. subtract; minus f-A Before you read the passage, look at the following pictures first. Put them in the order of the history of numbers. Then look at the headings on page 57 and check your answers. B Now, look at the title, the introduction, the headings and the pictures. Then on the list below, tick (?) the things you think the article may tell you. Long ago, there were different ways of writing numbers.
Zero is not a number.
Zero is an especially important number.
Machines make it easier for us to calculate.
Your brain may calculate better than a computer.
Your brain is an important part of your body.?
?
?
?
?
?very; more than usual or more than othersHe has been especially busy this week.the part inside the head of a person or an animal that thinks and feelsThat man has a fine brain.
A1 Read the whole passage on page 57 for the first time. Find the following words or phrases in the passage. Work out their meanings by yourself.A2 Choose the right meanings for these words.nearly a most b almost
invented a did not like b made for the first time
accurate
a correct b easyin a flash a in a long time b in a short time
lifetime a time that somebody works b time that somebody lives
like lightning a very quickly b very slowlyA3 Match the words in Column A with the meanings in Column B.A4 Write the words that go with the descriptions.An ancient calculating machine that is still use today.A living computer.A small machine that uses electronic power to do calculations.A very powerful machine for doing calculations.An ____________.The ____________.A ____________.A ____________.a group of things or parts that work togetherThe underground is part of Shanghai’s transport system , yes or no ?
Who invented electric light ?
make or think of something for the first timebecome bigger or more complete; make something bigger or more complete
Is our country developing very quickly? exactly right; with no mistakesCan computer give us an accurate answer ? very strong; with a lot of power Does the car have a very powerful engine?
surprisingWhat an amazing film!find the answer to a question, problem or puzzleWe can solve the maths problemgive a computer, etc. a set of instructions to make it perform a particular taskIn computer class, students will learn how to program.B Read the passage.How many languages do you know? Everyone knows at least two—his or her own language and the international language of numbers.In ancient times, people wrote numbers in many different ways, as these pictures of the number 6 show. However, they nearly all counted in the same way—in tens.Most of us use the system of numbers with numbers from 1 to 9 and 0 (zero). With these ten numbers, we can write any number from the biggest to the smallest. The Indians first invented and developed the 1 to 9 system of numbers. They then invented the zero. This was a very important invention because it made it easier to write big numbers and to calculate.One of the first calculating machines was an abacus. Abacuses are so fast and accurate that people still use them today.
A modern electronic calculator can add, subtract, multiply and divide. It can also calculate percentages and square roots.
Computers are very powerful calculating machines. In a flash, a computer can do a calculation that you could not do in your whole lifetime.Some people call the brain a living computer. Is a human brain a more powerful calculator than a computer? The following story may give an answer.
Shakuntala Devi is a lady from India with an amazing brain. Shakuntala and a very powerful computer were given this problem to solve.C. Complete answers to these questions about article. Work alone or in pairs.Which did the Indians invent first, the 1 to 9 number system or the zero? They invented the ____________________________ first.
Can you explain why we count in tens? We count in tens because we have __________ fingers.Can you complete this sentence with three words to tell us that a computer works very fast? A computer can do a calculation _____________.
Can you use two words to tell us that Shakuntala’s brain works very fast? It can do a calculation _____________.
Is a human brain a more powerful calculator than a computer? Why? __________________________________________________________________________________________D May is asking Mr Li, the writer, some questions about his article on numbers. His answers are not quite clear. Read the article again and make his answers clearer. The first one has been done for you.B Complete the summary.Ancient numbers — In ancient times, people wrote numbers _______ ____________, but they are nearly counted _____________________.
Zero — Everyone uses the __________________ 1 to 9 plus 0 (zero). The __________ invented them. _________ makes it _________ to write big numbers and to calculate.
Calculating machines — The three calculating machines: the ____________, the ____________ and the ____________ make our life easier.
Brain against computer — There was once a competition between an Indian __________ and a __________ in which the __________ won. Computers cannot do anything by themselves. ___________________ must program them first.Homework:1.copy the new words
2.Do exercises: workbook8A 37and 38