1.Tom along with his classmates_______for the coming exam.
问题描述：
1.Tom along with his classmates_______for the coming exam.
A.are preparing B.are preparing themselves
C.is preparing him D.is preparing himself
2._______is to attend our party this evening.
A.Both the singer and the dancer B.Either the singer or dancer
C.The singer or dancer D.The singer and dancer
答案我有了,但是不太懂,
答
1.知识点是主谓一致：当主语部分含有with,together with,along with,as well as,besides,except,but,like等介词或介词短语时,谓语动词用单数形式；但“名词+as well as+名词”时,谓语动词一般应与第一个名词一致.
此题用的是along with,Tom是单数名词,所以谓语动词应该用单数,所以选择D
2.知识点也是主谓一致,（a/the)+(单数名词)+(and)+(单数名词),指的是同一个人或物,谓语动词用单数形式；（a/the）+（单数名词）+（and）+（a/the）+（单数名词）,指两个人或物,谓语动词用复数形式.
题中给的谓语动词时单数is,也就是我上面说的第一种情况,对照答案可知选择D,表示同一个人,意思是这个歌手兼舞蹈家今天晚上要来参加我们的聚会.