解析：选C　推理判断题。由第三段中的"Mrs. Meer, chair of the biology department, has agreed to supervise (监督) us."可知，Mrs. Meer对作者的建议是持积极态度的，故选C项。

　　3．Why did Terri Olsen write this letter?

　　A．To ask students to care for the plants.

　　B．To try to make the school more beautiful.

　　C．To advise students to visit Natural Springs.

　　D．To draw the headteacher's attention to nature.

　　解析：选B　写作意图题。由第一段中的"we cannot turn our school into such a garden, we can surely add more beauty to its surroundings"以及下文的相关信息可知，作者通过此信旨在说服校长同意自己的建议，即通过举办植物交换活动给自己的学校引进更多植物来美化校园，故选B项。

　　B

　　Ginger Sprouse first noticed Victor Hubbard on the corner of a street in late 2016. She'd drive past Hubbard at least four times a day but began to grow concerned about him when winter approached. Wondering what the man's story was, she decided to introduce herself.

　　She found out that Hubbard, who suffers from a mental illness, had been standing in the same spot his mother left him in for the past three years. He stayed there each day in the hope that his mother would come back for him.

　　Sprouse began visiting Hubbard on her lunch break. They quickly became friends. "I would drive up and he would always ask about me，" Sprouse said.

　　Sprouse was so moved by Hubbard that she created a Facebook page called "This is Victor" in December. She used the page so people could get to know Hubbard and help out. She'd post photos and videos of Hubbard enjoying the simple things in life. He soon stole thousands of people's hearts. Since the Facebook page was created, support has been pouring in for Hubbard. Someone gave Hubbard a free eye exam, while others provided food, clothes, a bike and a phone. Community members also threw Hubbard a block party fundraiser (募集活动) with hundreds of attendees.

Sprouse's kindness didn't just help turn Hubbard's life around, but it helped him find his family. There's no doubt that Sprouse changed his life, but the influence isn't one­sided. "He's changed me greatly because he never even, when he was standing on the corner wet and in the rain, had anything negative to say，" she said. "And if he can be as kind, sweet and positive in