Knowledge and skills
1．To enable the students to know something about the five best art galleries in Manhattan in New York.
2．To get the students to learn the following useful new words and structures：consider，appeal to；It is＋adj.＋that clause，It is＋noun＋从句，It's a pity/shame that...(should)．..
3．To help the students learn how to write a letter asking for permission.
4．To foster the students' ability in skimming and looking up information in reference books and improve the students' reading ability.
