【例句精析】：Ever 有时可同who, what, when, where 等一起构成代词或连词，用来加强句子的语气
Compare these pairs of sentences:
He did what I asked him to do.
He did whatever I asked him to do.
Who told you that?
Whoever told you that?
Whatever, whoever, whichever 既可以作关系副词引导让步状语从句，也可作关系代词引导定语从句。
I like whatever you give me.
Whoever feeds him will be his master.
Whatever happens, do trust him.
【高考真题链接】：2000年 北京
These wild flowers are sospecial that I would do _______I can to save them.
A) whatever B) that C) which D) whichever
解析：(A)
【课文例句2】：There are still a few people whorashly attempt to cross the Pass on foot.
【例句精析】：尝试做。。。努力做。。。
attempt to do…. / endeavor to do …. / strive to do …. / doone’s utmost to do… /
spare no effort to …..
【例句拓展】：1. TheXPCC has thus scaled new heights of progress in its endeavor to cultivate andguard the border areas.
2. China will strive to lower market access thresholds, better protectintellectual property rights, and create a fair, transparent and orderly marketenvironment for foreign companies
operatingin China, Li pledged.
3. We do our utmost to support Hong Kong’s prosperity and stability.
4. 24 (Xinhua) -- Hong Kong Chief Executive Donald Tsang told reportersTuesday that the government will spare no effort in assisting hostage families.
