2. According to the passage, computers cannot help farmers decide_______.

A. what livestock to raise

B. whether to plant a certain kind of crop

C. how much money they can earn from their products

D. when to sell their products

【解析】选A。细节理解题。根据第二段的内容可知电脑是不能帮助农民决定养什么家畜的。

3. What is the best title for the whole passage?

A. Computer, Farmers' Best Friend

B. The Agricultural Revolution

C. Farmers in The Future

D. Computers and Robots

【解析】选B。标题归纳题。本文主要讲的是电脑技术与机器人技术在农业上的应用。这两项技术可以称之为"农业革命"。故B项最佳。

　　Towards evening, Jennifer was walking on the beach with a gentle breeze blowing through her hair. Looking up at the golden red sun ball, she was surprised by its color, deep red in the middle, softly fading into yellow. She could hear nothing but the waves and the seagulls flying up above in the sky.

　　The atmosphere relaxed her. This was what she needed. "It's getting late, "she thought, "I must go home. My parents will be wondering where I am. "She wondered how her parents would react when she got home after the three days she was missing. She kept on walking, directing herself to bungalow 163, where she spent every summer holiday. The road was deserted. She walked slowly and silently. Just in a few hundred meters, she would have been safe in her house.

　　It was really getting dark now. She wished she had her favorite coat on. It might keep her really warm. She imagined having it with her. This thought dissipated(消散)when she finally saw her front door. It seemed different. Nobody had taken care of the outside garden for a few days. She was shocked: her father was usually so strict about keeping everything clean and tidy, and now. . .

　　She entered the house. First, she went into the kitchen and saw a note written by her father:

　　"Dear Ellen, there's some coffee ready; I went looking for her. "But where was Ellen? On the right side of the hallway was her parents' room. She went in and saw her. Her mother, lying on the bed, was sleeping. Her face looked so tired, as if she hadn't slept for days. She was really pale. Jennifer would have wanted to wake her up, but she looked too tired. So Jennifer just fell asleep beside her. When Jennifer woke up something was different. She wasn't in her mother's room and she wasn't wearing the old clothes she ran away in. She was in her cozy bed in her pajamas(睡衣).

　　It felt so good being back home. Suddenly she heard a voice. "Are you feeling better now, dear? You know you got us very, very scared. "

【语篇概述】本文是记叙文。文章描述了Jennifer从海滩漫步到家后的心情变化过程。文章反映了父母对女儿的关心和无私的爱。