课件26张PPT。24Amazing thingsNumbersGrammar (I):
Cardinal and ordinal numbersCardinal numbersReading cardinal numbersExercises (Ⅰ)Ordinal numbersExercises (Ⅱ)Cardinal numbersWe use cardinal numbers almost every day. We use cardinal numbers to count things.5-112345Give me six packets.5-2Can you say these numbers?zeroonetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteen123455-3Can you say these numbers?twentythirtyfortyfiftysixtyseventyeightyninetytwenty-eightthirty-twoforty-fourfifty-ninesixty-threeseventy-fiveeighty-nineninety-one123455-4Can you say these numbers?one/a hundredone/a thousandten thousandone/a hundred thousandone/a millionone/a hundred and twentyfive hundred and sixtyfour hundred and ninethree thousandfour thousand, two hundred123455-5How do we say them?four thousand and fifty-sixtwenty-three thousand, eight hundred and thirteenfive hundred and sixty-seven thousand, one hundred and tensix million, four hundred and twenty-five thousand, two hundred12345Among the cardinal numbers, hundred, thousand and million have no –s.TipsReading cardinal numbersRead the following numbers. Pay special attention to the stressed syllables as underlined below.3-1123How do you say ‘13’ and ‘30’?3-2When we say thirteen, we stress the second syllable.When we say thirty, we stress the first syllable.123Read the following numbers. Pay special attention to the stress as underlined below. Note the pauses after thousand and million.100 one hundred
200 two hundred
375 three hundred and seventy-five
1,000 one thousand
4,189 four thousand (pause) one hundred and eighty-nine
15,362 fifteen thousand (pause) three hundred and sixty-two
100,000 one hundred thousand
284,653 two hundred and eighty-four thousand (pause) six hundred and fifty-three
1,000,000 one million
1,367,982 one million (pause) three hundred and sixty-seven thousand (pause) nine hundred and eighty-two12312A Kitty is learning how to say large numbers. Help Kitty match the words on the left with the numbers on the right. Write the correct letters in the blanks.3459-2bdefgac12345B Ben is asking Peter for some telephone
numbers of the Class 1, Grade 8 students. Peter does not want to make a mistake. Help him write out the telephone numbers in words before he calls Ben.9-3five, five, five, three; two, nine, o, oneWhen there is a zero in a phone number or an address, we usually say ‘o’ instead of ‘zero’, e.g., we say ‘seven, o, three, Nanjing Road’.Tips123459-4five, five, five, eight; six, three, nine, ofive, five, five, four; three, nine, eight, sixfive, five, five, two; o, nine, two, eightfive, five, five, six; seven, three, eight, fivefive, five, five, seven; two, one, one, eight12345C The Class 1, Grade 8 students are learning how to write cheques. Work in pairs. Take turns to read out the numbers to your partner and write the numbers out in words on the cheques.9-5123459-51598.00 five hundred and ninety-eight123459-627,493.00 seven thousand, four hundred and ninety-three123459-73422.00 four hundred and twenty-two123459-846,390.00 six thousand, three hundred and ninety123459-9512,312.00 twelve thousand, three hundred and twelve12345Ordinal numbers3-1123We use ordinal numbers to show the order or position of something. We use them to tell about dates, floors, results, etc.I am the second child of my family.Its birthday is on the fifth of June.The flat is on the seventh floor.3-2123Most ordinal numbers are made by adding -th to the cardinal numbers, except for one, two and three.onetwothreefirst
(1st)second
(2nd)third
(3rd)123Find the ordinal numbers.5thfifth8theighth9thninth12thtwelfth13ththirteenth20thtwentieth50thfiftieth21sttwenty-first33rdthirty-third100thone hundredthExercises (Ⅱ)2-112A Work in pairs. Make dialogues according to the example.S1 When is Betty’s birthday?
S2 It is on the second of January.
Betty — 2nd January
David — 30th September
Cindy — 16th June
Alan — 3rd March
Lily — 14th April
May — 22nd May
Sam — 12th October2-2B Read the students’ positions in the class, and complete the sentences with cardinal or ordinal numbers.first2thirdfourthtwelfth19twenty-eighth12ConsolidationWorkbook 8A, pages 32 and 33.
课件11张PPT。24Amazing thingsNumbersGrammar (II):
Decimals and fractionsDecimalsFractionsExercisesDecimalsHere are two decimals. How can we read them?3-1123pointzerosixfifty-ninetwothreeWe say each number separately after a decimal point.Tips3-2Read the following aloud.123.3 point three
0.3 zero point three
.368 point three six eight
7.145 seven point one four five
36.36 thirty-six point three six3-3Say the following decimals.123twenty-six point two threeone thousand three hundred and eighty-five point fiveforty-eight point four eightfive hundred and twenty-six point four three twoone point o four six eightFractions4-1123Here are two fractions. How can we read them?Use cardinal numbersUse ordinal numbersonetwothirdthirds44-2Note these special fractions:123a/one halfa/one quarterthree quarters44-3123How to say a mixed fraction?twoone-fifthand44-41234Say the following fractions.one-eighthfourteen twenty-secondsseven-twelfthstwenty-one sixtiethsfive-sixteenthsthree and a halftwenty-two and eleven-nineteenthsseven and three-fourthsExercises In pairs, practise saying the following numbers.0.7
19.21
1/5
53.35
8?
7/9
0.168
6?zero point seven
nineteen point two one
one-fifth
fifty-three point three five
eight and three-fourths
seven-ninths
zero point one six eight
six and a halfConsolidationWorkbook 8A, page 33.
课件12张PPT。24Amazing thingsNumbersGrammar (III):
Instructions and statements
about numbersInstructions about numbersStatements about numbersExercisesInstructions about numbersAdd 3 and 9.Subtract 3 from 9.Multiply 3 by 9.Divide 3 by 9.Table 1Statements about numbers3 plus 9 equals/is 12.9 minus 3 equals/is 6.3 multiplied by 9 equals/is 27.9 divided by 3 equals/is 3.Table 27-1Exercises Work in pairs to solve the problems. S1 tells S2 to do the following sums, using sentences like those in Table 1 above. S2 listens to S1’s instructions and responds with sentences like those in Table 2 above. Then check your answers together. The first one has been done for you.12345677-21A_____ 11 _____ 1._____ p_____ _____ e_____ _____.ddand11lus1quals1212345677-32S______ 5 _____ 13._____ m_____ _____ e_____ _____.ubtractfrom13inus5quals812345677-43M______ 7 _____ 8._____ m___________ by _____ e_____ _____.ultiplyby7ultiplied8quals5612345677-54D______ 16 _____ 4._____ d___________ by _____ e_____ _____.ivideby16ivided4quals412345677-65A______ 14 and 4 and d______
the answer by 2._____ p_____ _____ d_____ by _____ e_____ _____.ddivide14lus2quals94ivided12345677-76S______ 9 from 19 and m______ the answer by 3._____ m_____ _____ m___________ by _____ e_____ _____.ubtractultiply19inus3quals309ultiplied1234567ConsolidationWorkbook 8A, page 34.
课件13张PPT。24Amazing thingsNumbersGrammar (IV):
ImperativesIntroductionPositive and negative imperativesExercisesIntroduction2-1Add 3 and 9.Divide 9 by 3.are imperatives.We use imperatives to give instructions, orders or advice.Generally, we use imperatives only with people the same age as us or younger.Wash the clothes in warm water.Be quiet, Ben.Have some ice cream, please.122-2We do not use imperatives when speaking to people older than us except in the following situations:emergencies ‘I’m bleeding! Call an ambulance!’
cheering ‘Go Dad! Make a goal!’
some requests ‘Mum, help me, please.’12Positive and negative imperativesPositive imperativesGive me your homework, Ben.Please turn off your mobile phones.Be quiet, girls!There are positive and negative imperatives.Negative imperativesDo not turn on your mobile phones.Don’t copy Jane’s work, Sally.Please don’t be late again!122-1Use the base form of verbs in positive imperatives. Add don’t before the base form of verbs in negative imperatives, e.g., Give/Don’t give me your homework, Ben.
We may add please before the base form of verbs, e.g., Please turn off/don’t turn off your mobile phones.
We need to add be before adjectives when we use them as imperatives, e.g., Be/Don’t be quiet, girls!Tips122-26-1ExercisesA Look at the example sentences in the table again. Which ones are polite?123456Positive imperativesGive me your homework, Ben.Please turn off your mobile phones.Be quiet, girls!Negative imperativesDo not turn on your mobile phones.Don’t copy Jane’s work, Sally.Please don’t be late again!B What does the teacher say? Make sentences with the words or phrases in the box. Some of the sentences must begin with Don’t.6-21234561Ben is eating in class.2Amy has left the door open on a cold day.________________________________________________________________________________Don’t eat in class, Ben.Please close the door, Amy.6-31234563Sue is answering a question but the teacher can’t hear her.4Mike is falling asleep in class.________________________________________________________________________________Please speak louder, Sue.Don’t sleep in class, Mike.6-41234565Andy has brought his pet mouse to school.6Harry is looking at page 47. He should be looking at page 74.________________________________________________________________________________Don’t bring your pet mouse to school, Andy!Harry, turn to page 74.C1 Sam’s grandmother looks after his little sister, Pat. Sam is writing a poem about them. First, look at the words in these boxes, and find the correct pairs.6-5123456make a big castlewash your handsthrow sandclimb up the laddereat this nice cakefall off the wall6-6123456C2 Help Sam complete his poem. Use the words and phrases in C1. Begin some of them with Don’t.Grandma and Pat
Grandma looks after Pat all day.
She takes her to the park.
(1)____________________________, Pat. Clever girl.
Don’t (2)_____________________________________!
(3)_____________________________. That’s naughty.
(4)_______________________________. That’s good.
Now, (5)_________________________________, Pat.
Are you hungry, Patty? Here. (6)_________________.
Grandma and Pat,
Young and old,
Happy together.Climb up the ladderfall off the wallDon’t throw sandMake a big castlewash your handseat this nice cakeConsolidationWorkbook 8A, pages 35 and 36.
课件10张PPT。24Amazing thingsNumbersListeningA quiz about numbersA quiz about numbers7-1123We have learned a lot about numbers in this unit. We are going to do a quiz in the LISTENING section.Pre-listening4567Before we do the quiz, let’s have some games to see if you really know a lot about numbers.Read and match.7-2cbdea1234567Find the odd one in each group and tell the reason.7-3odd numberpercentagefractioneven numberdegree1234567While-listeningA Now try a quiz about numbers. Listen to the recording, and draw a circle around the right answer for each item.7-41234567 1 80 49 17
2 2.66 26% 5/6
3 ￥75 75% 75°
4 2 32 84
5 21 43 23
6 1/8 0.75 33
7 56 65 66
8 90° 90% 1/9
9 2 1.6 5?
10 9 11 12
11 2565 3881 2566 2881 2565 2881
12 13A 30A 138
13 1.8% 80% 18%
14 ￥15,000 ￥50,000 ￥50,000,000
15 30.5° 13.5° 35°7-51234567B Listen and write down the formulas and answers below the pictures.7-60.5×3 + 2 = 3.550 – 23 = 278×4 = 327.52 + 30’ = 8.22163 + 12 = 17512÷4 = 312345677-7Post-listeningRead the numbers on the right again. Can you make a quiz about number by yourself? Think about your questions and ask your partner to do the quiz.1234567ConsolidationWorkbook 8A, page 36.
课件8张PPT。Progress file 424Amazing thingsNumbersVocabularyGrammarVocabularyChoose the word from the box for each blank.45oC is a number showing ____________.
85% is a ____________.percentage
degreesdegreespercentage1233-1In the article on page 57, find adjectives beginning with a which mean:correct and true a____________
very surprising a____________.ccuratemazing1233-2Match these words with their meanings.to calculate a to find an answer to
to invent b to give orders to a computer
to solve c to make for the first time
to program d to use numbers to find answers1233-3Write the numbers in words.Grammar32nd _________________________________________________
857,120 _________________________________________________12thirty-second3-1eight and fifty-seven thousand one hundred and twenty3Insert words so that you make true sentences.123-216 ____________ 4 equals 4.
8 ____________ 9 equals 17.
144 ____________ 12 ____________ 11 equals 12.3divided byplusminusdivided byPut the following words in the right order.123-3desks/do/on/the/Please/not/write/.
stop/and/attention/Alan/pay/talking/,/.3Please do not write on the desks.Alan, stop talking and pay attention.课件64张PPT。24Amazing thingsNumbersReadingCartoon talkPuzzle timeWhat do you know about …?Before you readWhile you readAfter you readCartoon talk2-112Can animals count, Hi?My cat can!How do you know, Hi?I asked it what 6 minus 6 was and it said nothing.122-2Answer the following questions.What’s in Lo’s hand?
What’s in Hi’s hands?
Which question did Lo ask?
What did Hi think?
Do you think that animals can count?It’s an abacus.It’s a cat.He asked, ‘Can animals count?’He thought his cat could count.122-1Puzzle timeIn these two pictures, Grandad is helping Billy with his homework. Billy is using a calculator and Grandad is using an abacus. Mum and Dad are watching. Can you find 15 differences between the pictures? Say and write a sentence about each of the differences.2-212ABExample:
In Picture A there are four sweets, but in Picture B there are five sweets.128-1What do you know about …?A1 We are going to read about an international language – numbers. Do you remember what ‘international’ means? 345international between different nations or countries678A2 Do you know what ‘language’ means?8-212345language (n.) words that a certain group of people say and write/'l??ɡw??/Do you know any international languages?678A3 The word digit has two meanings, a number (1, 2, 3, etc.) and a finger. The words calculator and calculate came from a word that meant a stone. Guess the connections between number and finger and between stone and calculator.8-312345Before numbers were invented, people counted with their fingers or with stones.digit10+10=?6788-412345calculate (v.)
find the answer by using maths/'k?lkjule?t/Can you calculate how much the holiday will cost?calculator (n.)
an electronic machine that adds, subtracts, multiplies and divides/'k?lkjule?t?(r)/＋－×÷addsubtractmultiplydivide/s?b'tr?kt//'m?lt?pla?//d?'va?d/6788-512345A4 Can you give the largest number that exists?In fact, there isn’t one. Every number can always be made bigger by adding 1 to it.A5 Think of the jobs that use numbers a lot and the jobs that do not use numbers often.6788-612345B1 Use your dictionary to look up these words and phrases.6788-712345B2 We all use numbers in our daily life. Numbers are an international language. What do you know about the language of numbers? Try this quiz. Match the words with the signs and numbers.6781 a decimal number 7 add; plus
2 equals 8 subtract; minus
3 a pair of odd numbers 9 multiply
4 a pair of even numbers 10 divide
5 a fraction 11 a number showing degrees
6 zero 12 a percentage8-812345123456789101112/d?'ɡri://p?'sent??/678123-1Before you readA 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. 303-2123This history of numbers0Ancient numbersZeroCalculating machinesBrain against computerB 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. 3-3123Long 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.?
?
?
?
?
?????While you read16-112345A1 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.67891011121314151616-2A2 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 easy1234567891011121314151616-312345678910111213141516in 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 slowly18-412345678910111213141516A3 Match the words in Column A with the meanings in Column B.16-512345678910111213141516A4 Write the words that go with the descriptions.1An ancient calculating machine that is still use today.2A living computer.3A small machine that uses electronic power to do calculations.4A very powerful machine for doing calculations.An ____________.The ____________.A ____________.A ____________.abacusbraincalculatorcomputer16-612345678910111213141516B 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.16-712345678910111213141516In 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.Ancient numbers16-812345678910111213141516ZeroMost 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.16-912345678910111213141516Calculating machinesOne 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.Find the number that, when it is multiplied 23 times by itself, gives this answer:
91674867692003915809866092758538016248310668014430862240712651642793465704086709659327920576748080679002278301635492485238033574531693511190359657754734007568168830562082101612913284554680578015880677116-1012345678910111213141516Brain against computerSome 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.16-1112345678910111213141516Shakuntala’s brain took fifty seconds to find the answer, like lightning. The computer took a minute. However, someone had to first program the computer with instructions, and that took many hours. No one had to program Shakuntala!
Use your own living computer to solve the problem above. If it is not powerful enough, you will find the answer on page 67.Answer: 546, 372, 891.Passage16-1212345678910111213141516C 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.18-1312345678910111213141516languagenumbersNumbersIn tensZeroAbacusesCalculating machineshuman braincomputer16-1412345678910111213141516D Complete answers to these questions about Mr Li’s article. Work alone or in pairs.16-1512345678910111213141516Can you explain why we count in tens? We count in tens because we have __________ fingers.
Which did the Indians invent first, the 1 to 9 number system or the zero? They invented the ____________________________ first.ten1 to 9 number system16-1612345678910111213141516Can 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? __________________________________________________________________________________________in a flashlike lightning(You can write your own answer here.)After you read3-1A Work in pairs. Ask and answer question about Mr Li’s article on numbers. S1 asks the questions and S2 tries to answer his or her questions.123B Complete the summary.3-2123Ancient 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.indifferent waysin tensnumber systemIndiansZeroeasierabacusescalculatorscomputersladycomputerladyHuman beingsC Say something about the history of numbers according to the pictures below.3-3123ConsolidationWorkbook 8A, pages 31, 37 and 38.
/?'spe??l?/especially adv.very; more than usual or more than othersHe has been especially busy this week.Mini-dictionary/bre?n/brain n.the part inside the head of a person or an animal that thinks and feelsThat man has a fine brain.
Brains are more than just education. Mini-dictionary/pɑ:t/part n.some, but not all of something; one of the pieces of somethingWe spent part of the time in the museum.
The novel is good in parts. Mini-dictionary/'n??l?/nearly adv.almost; not quiteMini-dictionaryI’m nearly 16 — it’s my birthday next week. /'s?st?m/system n.a group of things or parts that work togetherMini-dictionaryI prefer this system of teaching English.
They are devising a road system.invent v.Mini-dictionaryWho invented the bicycle?
Thomas Edison invented electric light./'?nvent/make or think of something for the first time/d?'vel?p/develop v.become bigger or more complete; make something bigger or more completeMini-dictionarySome children develop more slowly than others.
Our country is developing very quickly./?n'ven?n/invention n.a thing that somebody has made for the first timeMini-dictionaryDo you know the four great inventions in Chinese history? /'?b?k?s/abacus n.Mini-dictionary/'?kj?r?t/accurate adj.exactly right; with no mistakesMini-dictionaryHe gave an accurate description of the thief. /??lek'tr?n?k/electronic adj.Things like computers, calculators and radios are all electronic.Mini-dictionaryThis dictionary is available in electronic version.
The firm is Britain’s main producer of electronic equipment./?swe? 'ru:t/square rootMini-dictionaryThe square root of 4 is 2./'pa??fl/powerful adj.very strong; with a lot of powerMini-dictionaryThe car has a very powerful engine.
The president is very powerful. in a flashvery quicklyMini-dictionaryIn a flash, the car disappeared./'k?lkj?'le??n/calculation n.the act or result of calculatingMini-dictionaryPerhaps you have made a mistake in your calculation.
All these calculations are based on the data you have provided. /h??l/whole adj.complete; with no parts missingMini-dictionaryShe ate the whole cake.
We are going to Spain for a whole month. /'la?fta?m/lifetime n.all the time you are aliveMini-dictionaryIn my father’s lifetime there have been many changes in the village./?'ɡenst/against prep.used when you compare two thingsMini-dictionaryWhat’s the rate of exchange against the dollar?
You must weigh the benefits against the cost. /'l?v??/living adj.alive; not deadMini-dictionarySome people say he is the greatest living writer./'hju:m?n/human adj.of or like people, not animals or machinesThe tsunami caused a terrible loss of human life.
A human skeleton was found by the building workers. Mini-dictionary/'f?l????/following adj.that are going to be mentioned nextAnswer the following questions. Mini-dictionary/?'me?z??/amazing adj.surprisingMini-dictionaryWhat an amazing article!/s?lv/solve v.find the answer to a question, problem or puzzleMini-dictionaryThe police are still trying to solve the crime./'la?tn??/lightning n.a sudden bright light in the sky when there is a stormMini-dictionarylike lightningvery quickly; rapidly/'pr??ɡr?m/program v.give a computer, etc. a set of instructions to make it perform a particular taskMini-dictionaryIn this class, students will learn how to program./'pa??(r)/power n.what makes things work; energyMini-dictionaryThe shortage of power dimmed the streets. /k?m'pli:t/complete v.finishing doing or making somethingMini-dictionaryBy the end of August we had completed the work.
Complete the sentences in the exercise by filling in the blanks. 课件13张PPT。24Amazing thingsNumbersSpeakingTalk timeSpeak up6-1123456A1 Say the time in two ways.noontwelve o’clockquarter past oneone fifteenTalk timetwenty past twotwo twentytwenty-five past threethree twenty-fivehalf past fourfour thirtytwenty to sixfive fortyquarter to sevensix forty-five6-2We use past to say times after the hour until half (thirty minutes) past the hour.
We use to to say times before the hour from 31 minutes until the full hour.
We use o’clock only at the full time.
We can also say the numbers in groups of two.Tips123456A2 Say these telephone numbers.6-3123456When we say telephone or ID card numbers, we say each number separately. For 0 we say zero or oh. When two of the same number are together, we can say double before the number, for example, 2341 2205— two three four one, double two zero five, or two three four one, two two zero five.2921 51432565 13512471 01222389 41672010 51002724 55662978 11212356 43996-4123456It is important to pause when we say long numbers. We usually pause if there are more than four numbers. Pay attention to the breaks in the following set of numbers. Say the numbers below.
2534
25342
253–423
2534–233
2534–2330Tips*A3 May is calling her friend, Rita, on the telephone. Listen to or read their conversation, and practise it until you can say it well. Then work in pairs to check the other homework problems in May’s notebook.6-5123456Rita: Hello, 890 6521 (eight nine zero, six five two one).
May: Hello. This is May. Is that Rita speaking?
Rita: Hi, May. This is Rita.
May: I don’t think I copied down a homework problem correctly. Can I check it with you?
Rita: Sure. Which one?
May: Number 5. Is it 0.92 (zero point nine two) multiplied by 18.18 (eighteen point one eight)?
Rita: No. It should be multiplied by 18.16 (eighteen point one six).
May: Thanks, Rita. Bye.
Rita: Goodbye, May.6-6123456*Speak upMr Tang was a student at your school 15 years ago. He has given your school 35,000 yuan. His instructions are:
the money must be used to buy three different things for the school.
students must decide what three things to buy in groups.4-11234decide on three things to buy with the money and how much you think each thing will cost;
write down your decision, using the pattern below to help you.B1 Work in groups of four and:4-21234Hi, everyone
Mr Tang has given our school a gift of 35,000 yuan. Our group thinks we should buy these three things.
First, __________. This will cost about __________ yuan.
Second, __________. This will cost about __________ yuan.
Third, __________. This will cost about __________ yuan.
Are there any questions?4-31234B2 One member of each group should read the decision to the class.4-41234/?ek/check v.look at something to see that it is right, good, safe, etc.Mini-dictionaryDo the sums and then use a calculator to check your answers.课件32张PPT。24Amazing thingsNumbersWorkbookVocabularyGrammarListeningReadingWritingABABCABABABDECVocabularyAUnderline the odd word in each group. The first one has been done for you.three seven twelve nineteen
first fourth four fifth
abacus brain calculator computer
add develop divide multiply
fraction percentage system square root
equals means minus plus123456The people in the picture live on different floors in the block of flats. First, count the floors to find out which floor they live on. Write the correct number next to each name. Then write sentences like the examples.B2-112_______ Mr Yu_______ Mr and Mrs Cheng_______ Mrs Wo_______ Miss Lan_______ Mr Li_______ Ms Luo_______ Mr and Mrs Lin_______ Mr and Mrs Ma123471011122-212________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________12345678Mr Yu lives on the first floor.Mr and Mrs Cheng live on the second floor.Mrs Wo lives on the third floor.Miss Lan lives on the fourth floor.Mr Li lives on the seventh floor.Mr and Mrs Lin lives on the tenth floor.Ms Luo lives on the eleventh floor.Mr and Mrs Ma live on the twelfth floor.Grammar7-1123ACardinal and ordinal numbersCommon errors??456fifteenPositive statements7three hundredfive thousand one hundred7-2A1Write these numbers in words. 123456719 ___________________________________________
90 ___________________________________________
11 ___________________________________________
28 ___________________________________________
55 ___________________________________________
12 ___________________________________________
100 ___________________________________________1234567nineteenninetyeleventwenty-eightfifty-fivetwelvea/one hundred7-31234567297 ______________________________________
3,000 ______________________________________
10,000 ______________________________________
8,431 ______________________________________
150,000 ______________________________________
342,000 ______________________________________
708,000 ______________________________________891011121314two hundred and ninety-seventhree thousandten thousandeight thousand four hundred and thirty-oneone hundred and fifty thousandthree hundred and forty-two thousandseven hundred and eight thousand7-41234567Common errors??fifthninthtwelfthfortieth11th42ndWrite the correct date in words to complete each sentence. Use the information in the box. The first one has been done for you.7-51234567A2Dates of festivals in China
1/1 New Year’s Day
8/3 International Women’s Day
12/3 Tree Planting Day
10/9 Teacher’s Day
1/10 National Day7-61234567Dates of festivals in China
1/1 New Year’s Day 10/9 Teacher’s Day
8/3 International Women’s Day 1/10 National Day
12/3 Tree Planting Day12345New Year’s Day is on ________________________________.
International Women’s Day is on ______________________.
Tree Planting Day is on ______________________________.
Teachers’ Day is on _________________________________.
The National Day is on ______________________________.the first of Januarythe eighth of Marchthe twelfth of Marchthe tenth of Septemberthe first of October7-71234567Answer these questions.A3What is the date today?
It’s ______________________________________________.
When is your birthday?
It’s on ___________________________________________.12(Students’ own answers)2-112Common errors??BDecimals and fractionssix point one twofive-ninthsfour-seventhsMatch the numbers on the left with the words on the right.2-212345bcead123-1123Common errors??CInstructions and statements about numbersSubtract 8 from 15.Multiply 12 by 5.8 multiplied by 8 is 64.10 divided by 5 equals 2.Use the answers on the right to help you complete the instructions. The first one has been done for you.3-2C11234AddandMultiplybyDividebySubtractfrom123Some of the underlined words in these statements are incorrect. Cross out the incorrect words and write the correct words above them. If the sentences are correct, put a tick (?). The first one has been done for you.3-3*C210 minus 10 equals 20. 28 multiplied by 4 is 7.
6 multiplied by 4 is 24. 16 plus 9 equals 25.
48 plus 13 equals 35. 30 divided by 3 is 10.123456plus?minusdivided??1233-1123DImperativesCommon errors??Come at 4.30.Please don’t go to bed late.Be quiet, please.Complete these instructions for taking the underground. Use each verb in the box once only. Use don’t if necessary. The first one has been done for you.3-2123forget follow keep pass use
ask go put wait____________ to the ticket office.
____________ for a ticket.
____________ your ticket into the slot① in the turnstile②.
____________ through the turnstile.1234GoAskPutPass① slot n. 插卡口 ② turnstile n. 十字转门3-3123forget follow keep pass use
ask go put wait____________ to take your ticket.
____________ your ticket in a safe place.
____________ the signs to the correct platform①.
____________ the stairs or the escalators.
____________ for the train to come.5678Don’t forgetKeepFollowUse① platform n. 站台9Wait2-112EReview exerciseComplete the passage with the words in the box.divided don’t hundred numbers six thirty
added give look plus thirdWe met for dinner at (1)__________ in the new Italian restaurant on the (2)__________ floor of the shopping centre. At the end of the meal, Stephanie said to the waiter, ‘(3)__________ me the bill, please.’ The bill was 150 yuan (4)__________ ten per cent for service. Stephanie (5)__________ up everything on the bill and found a mistake.six thirtythirdGiveplusadd2-212divided don’t hundred numbers six thirty
added give look plus third‘(6)__________,’ she said to me, ‘the waiter wrote 1.50 yuan for service instead of 15 yuan. He (7)__________ the total by a (8)__________ instead of by ten!’ Ling said, ‘(9)__________ tell him! We can save 13.50 yuan.’ But Stephanie said, ‘We must tell him. A waiter needs to be good with (10)__________, or he may get in trouble with his boss .’LookdividedhundredDon’tnumbersListeningAListen and write the numbers.12345678910111219902978,4311.50.32.1685.371/33/47/82 2/3BListen and write what you hear. The first one has been done for you.123456784 + 11 = 158÷4 = 29×4 = 3625÷5 = 584 – 27 = 5743 + 35 = 7860 – 49 = 1118×11 = 198Listen to the instructions and write down numbers 1 – 5 in the circles to show how to use a CD player.Cabcde21435ReadingARead about the invention and development of clocks and watches and complete the table. You must do some calculations to get all the information.12344-112344-2Clocks and watchesNowadays, we can calculate time very accurately, but before the invention of clocks, it was very difficult to do that. One way people told the time was by using sundials①, but it was still impossible to tell the time on cloudy days or at night.
The first mechanical clock was invented in China by Su Song in 1088. The first clock in Europe was invented 195 years later, at the end of the 13th century, in Britain. The alarm clock was invented in Germany 67 years later. ① sundial n. 日晷The first watch was invented in Italy in 1462. The early watches were different from today’s in two main ways. First, they only had an hour hand. Second, people could not wear them on their wrists. People had to keep them in their pockets—that is why the early watches were called ‘pocket watches’.
The first wrist watches came from Switzerland 328 years after the first pocket watches, but nobody bought them. They did not become popular until a hundred years later.
Digital clocks and watches came from the United States and are the newest invention in time-keeping. Shops all over the world started to sell them in 1971.12344-312344-4China12831350alarm clock1462Italy1790wrist watchdigital clocks and watchesEach statement below has one mistake. Cross out the false information and write the correct information. The fist one has been done for you.BIt was easy to calculate the time before the invention of clocks.
The ‘pocket watch’ had two hands.
The first wrist watches became popular very quickly.
Wrist watches are the newest invention in time-keeping.1234difficultonly an hour handdid not becomeDigital clocks and watchesWritingAHow did you spend last Saturday (24 hours)? Write down the number of hours that you spent on each activity and work out the percentage.(Students’ own answers)Write a short article according to the table above.BLast Saturday was ____________ (date). I spent ____________ (time) in/on ____________ (activity). That is ____________ (percentage) of the day. I ________________. That is ________________. ___________________________ _________________________________________________________________________________________________________________________________________________________________________________________________________(Students’ own answers)
