这几句英语如何解释(1)He is the younger og the two brothers我想问的是这里youn

(1)He is the younger of the two brothers 我想问的是这里younger前面为什么要加the 因为是两者比较,特指较小的那个(2)Beyond the stars ,the astronaut saw nothing but space 我想问的是stars前面为什么要加the,而space前面不加the。space做太空不用加冠词,做空间就要加(3)We elected him headmaster of our school for a second time。我想问的是headmaster前面怎么不加定冠词,而second time后面要加定冠词a 顺便问一下这句话是什么意思。elect什么什么职位都不用加冠词,是固定用法；a second time =another time意思是：我们又一次选举他为学校校长(4)That man doesn't look like his age; I think he's somewhat in his sixties。除了用in his sixties 表示,还有其他表示在他60岁的短语吗?in his sixties 是他六十几岁了 可以是60 -69的任何一岁 (5)Most students can go to college for further education in our city。我们城市的大多数学生可以去大学深造(6)We should have confidence in ourselves and we will make it if we have a try。我们应该对自己有信心,并且如果我们尝试了我们就一定能够做到