英语八年级上册(2013秋审查)Unit 2 Numbers评优课教学ppt课件
展开Try t read these numbers?
0.25 17.17 27% 1:15 3412205 11 Dec.2008
We can express numbers in different ways:0.25 17.1727%11 Dec.20191:15341 2205
(zer) pint tw five
seventeen pint ne seven
twenty-seven per cent
the eleventh f December, tw thusand and nineteen
ne fifteen/(a) quarter past ne
three fur ne, duble tw zer five/three fur ne, tw tw five
twenty-six pint tw three
ne thusand three hundred and eighty-five pint five
frty-eight pint fur eight
ne pint fur six eight
zer pint five per cent
twenty-ne per cent
thirty-three pint three three per cent
nine pint fur five per cent
Percentages
a quarter past ne/ne fifteen
twenty past tw/tw twenty
twenty-five past three/three twenty-five
twenty t six/five frty
try t read the numbers alud.
Listen t a quiz abut numbers. Then circle the crrect answers n Page 22.
The “A quiz abut numbers”
In mst sentences, we use the weak frms f articles, prepsitins,prnuns, auxiliary verbs, mdal verbs, cnjunctins, etc.
Sme wrds have bth a strng frm and a weak frm.
Strng and weak frms
In mst sentences, we use the weak frms f these wrds.
Smetimes we use the strng frms fr emphasis.
Listen t the cnversatin belw. Pay attentin t the prnunciatin f the wrds in blue. Then practise it in pairs.
May: What’s yur favurite subject, Ben?Ben: Maths. Our Maths teacher uses a lt f games t help us learn. He makes the class really interesting. Als, I like t wrk with numbers.May: OK. D yu knw the number f students in yur class?Ben: Yes, I d. There are 35 students in my class—18 bys and 17 girls. I can remember all their birthdays!May: Yu’re amazing!
Mandy did nt cpy her hmewrk crrectly,s she called Jyce.
Jyce: Hell, this is Jyce speaking.Mandy: Hell, Jyce. It’s Mandy.Jyce: Hi, Mandy. What can I d fr yu?Mandy: I dn’t think I cpied dwn the Maths prblems crrectly. Can I check them with yu?Jyce: OK.Mandy: Number 1. Is it seventy-tw plus twenty-seven?Jyce: N. It shuld be seventy-tw plus tw hundred and seventy-
In pairs, check the Maths prblems in Mandy’s exercise bk.
Mandy's hmewrk
Jyce's hmewrk
1. Listening : the “a quiz abut numbers”: knw hw t express numbers in different ways such as , decimals, percentages, dates, and time2. talking abut “ strng and weak frms ”
一、情景对话。请根据所提供的情景作出回应。1. English is very imprtant. Hw many years have yu learned English?2. Watching t much TV is bad fr us. Hw ften d yu watch TV?3. What time d yu usually g t bed at night?
Pssible answers1. ① I have learned English fr tw / three / fur / five / six / seven / eight / nine / ten years. ② I have learned English fr mre than ten years.2. ① I watch TV every day. ② I watch TV nce / twice / three times / fur times / five times / six times a week / mnth. ③ I seldm / never watch TV.
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