Unit 4 Body language 单词详解课件-2022-2023学年高中英语人教版（2019）选择性必修一

Unit 4 1 Unit 4: Body Language vocabulary: 72 (difficult, important) Grammar: -ing form as the object and the predicative Reading: exposition Main Points: 1. vary vi. 2. differ vi. 3. approve vi./vt. 4. demonstrate vt. 5. employ vt. 6. witness vt./n. 7. interpret vt. 8. favor vt./n. 9. appropriate adj. 10. interaction n. interaction /ˌɪntərˈækʃən/ n.交流,相互影响 4 interact vi. 互动，相互影响 interaction n. 交流 短语： interact with sb. Teachers should interact with students more frequently in the class. 老师应该在课堂上与学生有更多的互动。 vary /ˈveəri/ vi.(根据情况)变化,改变 6 vary vi.变化 various adj.各种各样的 variety n. 多样性 短语：vary in ... 在……方面不同/有差异 vary from (person to person) 因人而异 various kinds of 各种各样的 a variety of = varieties of 各种各样的 【及时巩固】①The weather here________ (vary)from hour to hour.②There are _________ (vary) ways of cooking fish.③The variety of the flowers _____ (be) changing every year. ④ I can see __________ (vary) of flowers in the field. varies various is varieties appropriate /əˈprəʊpriət/ adj.合适的, 恰当的 inappropriate adj. 不恰当的 9 You will be informed of the details at the appropriate time. 在适当的时候将把详情告诉你。 appropritae place/ clothes / gift by contrast /略/ 相比之下 = on the contrary 相反 11 The reason is that elephants are a common resource, while cows are private goods. Elephants wander freely without any owners. The hunter has a strong motivation to kill as many elephants as he can find. Because illegal hunters are numerous, each has only a slight motivation to preserve the elephant population. By contrast, cattle live on farms that are privately owned. Each farmer makes great effort to maintain the cattle population on his farm because he harvests the benefit of these efforts. approve /əˈpruːv/ vi.赞成,同意 vt.批准,通过 13 approve vi.赞成 /vt. 批准 approval n.批准，赞同 approving adj. 赞成的 disapprove vi./vt.不赞同 disapproval n. 不批准，不赞同 disapproving adj. 不赞成的