13. A．to remember B．remember

　　C．remembered D．remembering

　　14. A．at most B．at least

　　C．more D．less

　　15. A．third B．first

　　C．another D．other

　　16. A．plants B．windbreaks

　　C．trees D．crops

　　17. A．protect B．keep

　　C．draw D．separate

　　18. A．tree B．table

　　C．wood D．house

　　19．A.news B．report

　　C．knowledge D．information

　　20．A.consequence B．concretion

　　C．construction D．conservation

　　Ⅳ.阅读理解

　　Miss popular

　　I was awkward in middle school: bony and athletic, with a high grade in science and a low one in self­esteem. Though I had a few friends, I wasn't popular. I was picked last in football and I sometimes ate lunch by myself.

　　 I remember the day Brittany came to our school. Her teeth were crooked (歪斜的), and she was a little overweight. Not that this mattered though, because she walked around like she was better than all of us. She was incredibly intimidating (吓人的) and outspoken.

　　 Around Brittany, I tried my best to go unnoticed. Standing out or stealing her spotlight could only result in one thing: confrontation. Brittany was always the first girl picked for teams; I was lucky if I was picked at all. I was thrown the ball while she stood with the quarterback (四分卫), chatting about the last party she'd gone to. I had never been to a party before or kissed a boy.

One day, Brittany bribed a classmate to ask me to the school dance. I was flattered. Then Brittany told me during science class that she had put him up to it. She asked in front of everyone, "Why would anyone even want you？" I went home and cried.