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own“落下”; fall down from“從??上落下”。until 。t find my house. A. happened。在空白處填 上 課堂資料包 Step1 重難點(diǎn)解析 tea was invented by accident (1)by accident=by chance/accidentally,意為“偶然地;意外地”,作副 He thought out the solution to the problem almost by We didn39。 happened ( A )3. The teacher called me “ Li Lei” time after time_______ . mistake accident chance 環(huán)節(jié)說(shuō)明:學(xué)生進(jìn)一步鞏固對(duì) take place,mistake,accident 等的理解和 Step 3 問題探究 changes have taken_______ in Suzhou in ___________years. place, recent。句意為:你泡的茶被拿 5. _________ (sudden) the boy ____(fall) into the cold Changjiang River. Suddenly,fel