learning aims(学习目标) 1. to memorize the new words and phrases in reading . 2. to gain some information about the united nations and about the work and responsibility of a un goodwill ambassador. important points (学习重、难点): 1. to understand the text and remember the new words and phrases. 2. to understand a speaker’s attitude during a speech. learning guide (方法引导): read, copy, conclude and recite. 《自主学习》 :(a级)