【正文】
______ reused paper product. (三 )單項(xiàng)選擇 1. Dangerous pollution are harmful _________ the living environment. A for B on C to D as 2. Remember to __________ before you leave the room. A turn on B turn off C turn up D turn down 3. The Great Wall is one of the ________ of the world that created by human beings! A languages B events C history D wonders 六、實(shí)踐練習(xí) .根據(jù)課本內(nèi)容以及周圍相關(guān)問題,以小組為單位設(shè)計(jì)一張關(guān)于環(huán)保的海報(bào)。學(xué)生看課本第 48 頁第 7題問題,現(xiàn)根據(jù)第 6題內(nèi)容進(jìn)行推測(cè)答案。 1) be good for 2) hear of 3) look after 4) throw away 5) turn off 6) worry about 四.學(xué)習(xí)步驟 1. Greeting 2. Ask students to read the learning aims talk Language practice 部分的句子,并結(jié)合課本 179頁的內(nèi)容歸納總結(jié)出有關(guān)前綴和后綴的構(gòu)詞法。