請問老師，下面的句子中兩個that分別起什么作用。
New sources of energy must be found, and this will take time, but it is not likely to result in any situation that will restore that sense of cheap and plentiful energy we have had in the past time.第一個that引導的是result的賓語從句嗎?如果是，它在賓語從句中應做主語。那它指代的是什么呢？第二個that應該只是一個代詞吧。因為sense of cheap and plentiful energy做restore的賓語，它并不是一個句子，而是這個賓語由一個定語從句所修飾。老師，請您給指導一下，我真的搞不太明白。謝謝。