新沪教牛津版八年级上册英语 Unit 2 Period 4 教学课件

1、Module 1 Amazing thingsUnit 2 NumbersPeriod 4Period 4GrammarRead the numbers aloud.We use cardinal numbers to count things.The king put two grains on the second square.Cardinal numbersWe use cardinal numbers to count things. In the cardinal numbers, we do not add -s to hundred, _ and _ . With large

2、numbers, we put _ between hundred and ten.thousandmillionand plete “Work out the rule”.Read the following numbers.2,53425,342253,4232,534,23325,342,330two thousand five hundred and thirty-fourtwenty-five thousand three hundred and forty-twotwo hundred and fifty-three thousand four hundred and twenty

3、-threetwo million five hundred and thirty-four thousand two hundred and thirty-threetwenty-five million three hundred and forty-two thousand three hundred and thirtyWe use ordinal numbers to show the order of things.Read the numbers aloud. We form most ordinal numbers by adding_ to the cardinal numb

4、ers. There are exceptions, like first, second and third.-thThe king put two grains on the second square.Our flat is on the sixth floor.Ordinal numbersThe students are standing in a line. They each have a number (from 1 to 28). Fill in the blanks with cardinal numbers on the left and ordinal numbers

5、on the right.first2thirdfourthtwelfth19twenty-thirdtwenty-eighthInstructions about numbersadd and subtract from multiply bydivide by Read the instructions aloud.2+1010-2210102Add 2 and 10.Subtract 2 from 10.Multiply 2 by 10.Divide 10 by 2.Instructions about numbersWe can use equals or is to express

6、“=”. Things to rememberPlus and minus are prepositions.Read the statements aloud.2+10 = 1210-2 = 82 10 = 20102 = 52 plus 10 equals/is 12.10 minus 2 equals/is 8.2 multiplied by 10 equals/is 20.10 divided by 2 equals/is 5.In pairs, plete the sentences like those in Table I and Table II.Instructions ab

7、out numbers1 S1: A_ 11 _ 1. S2: _ p_ _ equals/is _. ( )2 S1: S_ 5 _ 13. S2: _ m_ _ equals/is _. ( )3 S1: M_ 7 _ 8. S2: _ m_ by _ equals/is _. ( )4 S1: D_ 16 _ 4. S2: _ d_ by _ equals/is _. ( )5 S1: A_ 9 _ 6. S2: _ p_ _ equals/is _. ( )6 S1: A_ 14 and 4 and d_ the answer by 2. S2: _ p_ _ and d_ the answer by _ equals/is _. ( )ddand11lus11211+1=12ubtractfrom13inus5813-5=8ultiplyby 7ultiplied85678=56ivid