译林版(三起)英语四年级上册《How many?》Part B PPT教学课件(第5课时)
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人教版三年级英语下册《How many?》Part B PPT教学课件(第5课时),共19页。
Find the rules
three—thirteen seven—seventeen
four—fourteen eight—eighteen
five—fifteen nine—nineteen
six—sixteen
Look and say
5+5=10
Five and five makes ten.
7+8= 10+3=
9+4= 8+4=
12+2= 6+5=
4×2=8
Four times two makes eight.
3×5= 3×4=
2×8= 3×6=
4×4= 4×5=
Extension
英语数词不难记, 找出规律就容易。
后面加 -teen 变十几,eleven, twelve 单独记。
thirteen, fifteen 有变异。
eighteen 只有一个 t,两个音节念清晰。
twenty 不同重点记。
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