重点句型
1.not only...but also...不但……而且…....:
Not only can you post specific questions,but_(你不但可以就特定的问题发帖而且) you can also broaden your
knowledge by reading posts from other English learners aroundthe world.
2.spend time (in) doing sth.花时间做某事:Ispent dayspreparing and writing_(我花了几天时间准备和写) my firstEnglish paper.

be made up of由……组成
(教材P1z)And sometimes a word is made up of the first lettersof several words...
而且有时一个单词由几个单词的首字母组成……(1)be made up of—consist of
由……组成
(2)be made of
由……材料制成(看出原材料)
be made from
由……材料制成(看不出原材料)

1All substances, whether they are gaseous, liquid or solid,aremade up of atoms.
所有物质，不论它们是气体、液体或固体，都是由原子构成的。
2The collection consists of/is made up of three parts:
poems, essays and short stories.
这本作品是由诗、散文和短篇小说三部分组合而成的。