【正文】
genetherapy, big threat, oppose。 Unit21 warm up 學(xué)習(xí)目標(biāo) By the end of the class, the students will be able to: ? learn and revise the words related to the topic. ? get the general idea of the text and the writer’ viewpoints. ? 學(xué)習(xí)過程 課堂活動(dòng) (一) 預(yù)習(xí)交流 .Word bank. Match the words with their Chinese meanings. interval n. 聽覺 digest ;間歇 swap n. 脈搏 hearing