Dear Sandy,

    I am very glad to enter my school. I enjoy the life here except for the school lunch. I prefer hamburgers,ice creams and potato chips,but we are not allowed to order them according to the school rules. I usually have little for lunch and I often feel tired and can't follow the teachers in the afternoon classes. What should I do? Do you have any good ideas? Please write to me as soon as possible.

Yours sincerely,

Lucy

注意事项:1）词数90左右，开头和结尾已经写好，不计入总词数;

2）文中不得提及真实的人名、校名等相关信息。

Dear Lucy,

    I am glad to receive your letter.

Yours,

Sandy

①在表中空格A、B、C、D内填写相应内容.

②当烛焰从远处靠近透镜时，仍要在光屏上得到清晰的像，光屏应____透镜，此时像比之前的____.（选填“大”或“小”）

③小威做到第2次实验时，如果用手挡住透镜的下半部分，光屏上的像发生的变化是____

④小威做到第3次实验时，蜡烛由于燃烧而变短了一点，此时，像会成在光屏的____半部分（选填“上”或“下”），如果想让像成在光屏中央，应将透镜向____移动（选填“上”或“下”）．

⑤如果把物距调节到5cm，看到的像比第4次实验____（选填“大”或“小”）．