（1）纤维有天然纤维和合成纤维两种，棉花和羊毛属于 ______纤维，涤纶（的确良）、棉纶（尼龙）和腈纶等属于 ______纤维．

（2）微量元素对人体健康的影响很大，如缺 ______会引起贫血．

（3）现有①大米②水果③鱼④萝卜，其中能提供丰富蛋白质的食物是 ______（填序号）．

文段表达。

     根据下面中英文提示的内容，写出意思连贯、符合逻辑、不少于60词的短文。

     在你的生活中总有挥之不去的记忆。假如你是李明，在即将与高老师分开之时，请你按以下英文

提示用书信形式写出你想对她说的话。

     After three years' staying together, you will say goodbye to Miss Gao. You must have a lot to say to her.

We want to know:

     ● what you want to say to your English teacher most;

     ● why you want to say so;

     ● what you want to tell her about your future plan.

     注意：1. 开头和结尾已给出，不计入总词数。

                2. 请不要写出真实姓名和学校名称。

Dear Miss Cao,

     I want to say ________________________________________________________________________

______________________________________________________________________________________

                                                                                                                                             Yours,

                                                                                                                                           Li Ming