Unit 1

Reading One

Reading Two

Reading Three

Reading Four

Unit 2

Reading One

Reading Two

Reading Three

Reading Four

Unit 3

Reading One

Reading Two

Reading Three

Reading Four

Unit 4

Reading One

Reading Two

Reading Three

Reading Four

Unit 5

Reading One

Reading Two

Reading Three

Reading Four

Uhit 6

Reading One

Reading Two

Reading Three

Reading Four

Unit 7

Reading One

Reading Two

Reading Three

Reading Four

Unit 8

Reading One

Reading Two

Reading Three

Reading Four

Unit 9

Reading One

Reading Two

Reading Three

Reading Four

Unit 10

Reading One

Reading Two

Reading Three

Reading Four

Unit 11

Reading One

Reading Two

Reading Three

Reading Four

Unit 12

Reading One

Reading Two

Reading Three

Reading Four

参考答案及解析