题目内容：

高中英语选择求讲解
(1)Durban Climate Conference calls on the developed
countries to ____efforts to increase funds and technical aid to developing countries.
A.step up B.make up C.turn up D.put up
(2)____ at Beijing ,together with all his family,was what he strongly wished for during the last leg of his life.
A.Uniting B.United C.Getting united D.Having united
(3)It is the hotel ____located in the downtown _____he applied to for a job.
A.that;that B.which;that C.that;where D./;that
第一题的各个词组啥意思?
第二题是非谓语动词?如何分析出答案?
第三题是定从和强调句,可是我不会判断啊,如何判断?如何分析?