一、Reading:
Tony and Tina are very different. Tony likes music. Tina doesn't. Tony is an athlete. Tina isn't.
On the other hand, Tina likes movies, but Tony doesn't. She is a good student, but he isn't.
Tony and Tina are brother and sister, but are they alike? NO, they aren't. They're very different.
二、解析：
■ Tony and Tina are very different.
- 主：Tony and Tina
- 系：are
- 状：very
- 表：different
■ Tony likes music.
- 主：Tony
- 谓：likes
- 宾：music.
■ Tina doesn't.
= Tina doesn't like music.
句型： 省略句。
省略句的功能：省略两句的重复部分，使句子结构简单又不失清楚的涵义。
省略句的先决条件：
a. 两句的结构必须相同（亦即两句有相同的时态及动词），第二句方可形成省略句。
b. 第一句若为肯定句，第二句则为否定句；第一句若为否定句，第二句则为肯定句。
■ Tony is an athlete.
- 主：Tony
- 系：is
- 表：an athlete.
■ Tina isn't.
= Tina isn't an athlete.
句型： 省略句。
■ On the other hand, Tina likes movies, but Tony doesn't.
On the other hand：表“另一方面来说”或“话又说回来”。有副词的功能，通常置于句首，修饰整个句子。
此处 movie 加 s,告诉我们 movie 是个普通可数名词，使用复数 movies 来表整体的概念。
■ She is a good student, but he isn't.
- 主：She
- 系：is
- 表：a good student
- 省略句：he isn't ...
■ Tony and Tina are brother and sister, but are they alike?
句型：主系表，一般疑问句。
此句 brother 与 sister 是可数名词，照理本句应为：They are a brother and a sister. 但两个名词所表示的是相对的关系，如父子、兄妹、母子等，这些名词之前的不定冠词就应省略。
alike：adj.相像的。 注：使用时，主语一定要是复数，两个人以上。