Vocabulary scaffold ['skæfold] n&v. 施工架;建施工架 drone [dr əʊ n ] n. 雄蜂 tether [ ˈ t ɛ ð ə ] n. 绳,链 assessment [ ə 'sesm ə nt] n. 估价,评估 inspection [in'spek ʃə n] n. 检查,视察 identify [ai'dentifai] vt. 识别,认明,鉴定 vi. 认同,感同身 reactive [ri'æktiv] adj. 反应的,反作用的, proceed [pr ə 'si:d] vi. 继续进行,开始,着手 maintenance ['meintin ə ns] n. 维护,保持,维修,生活费用 n. 供给, inspiration [.insp ə 'rei ʃə n] n. 灵感,吸入,鼓舞人心(的东西) adaptive [ ə 'dæptiv] adj. 适合的,适应的,能适应的 1. Listen to the recording and work out the summary. Researchers from England and Switzerland are ________________________________________________________.