ž   Organize your speech carefully to improve understanding.

ž   Identify various typesof supporting material to enrich the speech.

ž   Use a variety of transition words.

 Please preview the words before watching the video. 

1.  illustrate ['ɪləstreɪt]vt. 阐明，举例说明；图解

2.  assertion [ə'sɜːʃ(ə)n]n. 断言，声明；主张，要求；坚持；认定

3.  authoritative [ɔː'θɒrɪtətɪv; -,teɪtɪv]adj. 有权威的；命令式的；当局的

4.  mislead [mɪs'liːd]vt. 误导；带错

5.  Testimonies证词

6.  Definitions 定义

7.  Narratives叙事

8.  Analogies比拟，比喻

9.  phenomenon [fɪ'nɒmɪnən]n. 现象；奇迹；杰出的人才

10.brief example简单例子

11.extended example 长例子

12.multipleadj. ['mʌltɪpl]多重的；多样的；许多的

13.fictitious [fɪk'tɪʃəs]adj. 虚构的；假想的；编造的；假装的

14.humiliating[hjʊ'mɪlɪeɪtɪŋ]adj. 丢脸的；羞辱性的

15.mathematical [mæθ(ə)'mætɪk(ə)l]adj. 数学的，数学上的；精确的

16.subfield ['sʌbfiːld]n. [数] 子域；分区

17.make inferences做出推论

18.naked statistic 纯数据

19.Expert testimony专家证词；鉴定人证据；专家作证

20.Peer testimony同行证词

21.tariff['tærɪf]n. 关税表；收费表

22.Etymological definitions词源的定义

23.Functional definitions功用性定义

24.literal analogy：a literal analogy is about two things that are nearly exactly alike.

25.figurative analogy：A figurative analogy is a comparison about two things that are notalike but share only some common property.

26.Emoji n. 表情符号

Please watch the video.

Questions to be discussed in class: 

1. Why do we use supporting material? 

2. What kind of supporting matrial can be choosed?