课件16张PPT。Unit 6How many pens are there?thirteen eighteen seventeen sixteen fifteen fourteennineteentwentytwelveeleven13到19数字的规律thir + teen = thirteen 十三
four + teen = fourteen 十四
fif + teen = fifteen 十五
six + teen = sixteen 十六
seven + teen = seventeen十七
eight + een = eighteen 十八
nine + teen = nineteen 十九11How many ____ _____ _____ ?cows arethereEleven cows.How many dogs are there?
There are dogs.twelveHow many ____ _____ _____?cars arethere13thirteenHow many boys are there?14Fourteen boys.How many ____ _____ _____?horses arethere15fifteenHow many bananas are there?Sixteen bananas.How many ducks are there?17Seventeen ducks.How many ____ _____ _____?pencils arethereeighteenHow many bikes are there?nineteenHow many rats are there?有多少只老鼠?twentyThank you!
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