Unit 4 Section Ⅱ
Ⅰ.语法填空
1．Everyone in the village is very friendly.It doesn't matter __whether__ you have lived there for a short or a long time.
解析：考查名词性从句。句意：村子里的人都很友好，所以你住在那里时间长还是短都没关系。it是形式主语，真正主语是whether引导的名词性从句。
2．It is immediately clear __whether__ the financial crisis will soon be over.
解析：考查主语从句的用法。句意：经济危机是否会很快结束是很明显的事情。“是否”用whether表示，不能选when是因为从句中由soon这一时间状语。
3．It has been proved __that__ eating vegetables in childhood helps to protect you against serious illnesses in later life.
