Unit2 lesson1 modern heroes-grammar课件(北师大版必修1)
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规则动词词尾加-ed有三种读音: 1. 在清辅音后读作[t]。如:asked, helped, watched, stopped 2. 在浊辅音和元音后读作[d]。如:enjoyed, studied, moved, called 3. 在t / d后读作[id]。如:wanted, needed

基本结构