howlonghaveyoubeencollectingshells課件(1)(留存版)
【正文】 1999 6 years old 2021 10 years old now 13 years old How long have you been playing basketball? I have been playing basketball since 1999. When did you start playing basketball? I was ten years old. I started playing basketball when 現(xiàn)在完成進行時態(tài) have / has been + 現(xiàn)在分詞 表示從過去某一時刻開始一直延續(xù)到現(xiàn)在的 動作，這個動作可以仍然進行。 1b Listen. A reporter is talking to the participants in a skating marathon. Fill in the chart below. How long? Alison I’ve been skating for five hours. Sam I skated for four hours. Victor Celia I’ve been skating for five hours. I skated for two hours. 1c PAIRWORK Ask and answer
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