... I. Pre -Listening 1. Vocabulary: !"#$%& !'() * +ɔ ' &, - ʒ .,/&0#12 ... of these species. hunting or killing of these species. - Littering might pollute the environment. Littering might pollute the environment. - Feeding animals may change their eating habits Feeding ... food. source of food. - Touching animals can transmit diseases to them, Touching animals can transmit diseases to them, which are already in danger. which are already in danger. - Boating might cause...