题干

为了探究“水的净化”过程,我校九(1)班实验小组从东沙河中取了水样,观察到:水样浑浊,悬浮有固体小颗粒,散发出淡淡的鱼腥味.现对水样进行如下处理:
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同类题1

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    Emily was an eighth grader. To pass her Civics course, she had to do some volunteer services in a nursing home for a week.

    One Monday, Emily went to the nursing home after school. When she arrived, she was told she would spend an hour every weekday with an elderly lady, Mrs Blair. She was then led into a room, where an old lady in a flowery dress was sitting on a sofa.

    Emily stood awkwardly(别扭地)in front of the lady. She cleared her throat and said, "Good afternoon. I'm Emily."

    "Good afternoon, Emily. Take a seat, please." Mrs. Blair replied.

    Then,1filled the space between them. Emily wondered what to say.

    "Tell me about yourself, Emily," Mrs Blair said suddenly.

    "Well," Emily started, "I don't have any grandparents, so I don't know how to get on well with elderly people. I love the performing arts. I'm here mainly because I have to volunteer here to get a good grade for my Civics class."

    Mrs Blair didn't seem to mind. 'Many people, especially teens, don't seem to2old people like me. Now you are here, and I'm going to change that about you. Ask me anything."

    Emily thought for a moment, and finally decided, "What was your job?"

    "I was a Broadway star in the 1950s."MrsBlair answered.

    Cool! Can you tell me about it?" Emily asked, amazed.

    Mrs Blair smiled. "Back then3the lead actress had the honor to wear a special bracelet. I was the lead in almost all of the plays, so I always wore the bracelet. Till this day, I still have it."

    Emily smiled along with Mrs Blair and listened to the other stories attentively. She had become very4Mrs Blair's stories. She decided to come earlier the next day.

    Tuesday, Wednesday, and Thursday passed by quickly. Then came Friday. As she was leaving, Emily was really upset to say goodbye.

    "Don't be sad. You can still visit me," Mrs Blair comforted her. She then handed a small box to Emily, "It's my gift to you."

    Emily5opened the box and was surprised to see what was inside. "It's the bracelet that you wore. Thank you!" Emily said, with tears in her eyes free.

    I'm sure to visit you whenever I'm on the way home, Emily thought of her own love for the performing arts. She touched the bracelet and6that she would keep her word to Mrs Blair.

同类题3

阅读下面的文章,完成下列小题。

                                                                                                     哭泣的圆明园

                                                                                                          张晓惠

    一直以为,圆明园是哭泣的。英法联军蹂躏着她的肌体,摧毁着她的骨骼,冲天大火燃烧的是一个民族的尊严,百多年的疼痛如那西洋楼的残垣断壁穿越百年的风雨永远存在——伫立在那西洋楼大水法的遗址前,我无法不感受圆明园的疼痛,感受一个民族的屈辱和疼痛,是那种切肤的痛。

    是十年前去的圆明园。没有人愿去,说是那么远,又没啥看的。我说我肯定要去。

    是阴凄凄的天,是冷飕飕的细雨,和着秋风如刀子一般刮在脸上。沿着浩淼的湖水,我走啊走的,不见一个人影。最后,终于走到了那大水法遗址——尽管多少次从图片上,从教科书中见过这遗址的照片,可当我立在苍苍的天空下,真实地面对着这一片一地一旷野的玉白石块时,仍感到那来自心底的震撼!依旧华美——我抚摸着那冰冰凉凉的玉石纹理;依旧精致——那欧式的曲线流畅又不羁;依旧贵族——断碎的罗马石柱在苍天下笔直出一派伟岸和傲然。后来我就流泪了,好在周围没人,我没带相机,但那些石块、石柱、石雕连同那灰苍苍的天空一起烙在了脑海,成为心房上一幅永不磨灭的壁画。

    十年后的今日,我说,再去圆明园。对我来说,去圆明园是一种凭吊,一种拜谒,甚至是一种提醒。说出这些我不怕别人说我矫情,我就是这样想的。

    进了圆明园,才发现今非昔比。十年前的清寂不复存在,曾经寂静的圆明园一片喧嚣,柳绿桃红藤紫,满园春色也罢,昔日皇族的休闲园址,也该平常百姓流连赏目;门票从五角涨到二十五元也罢,这遗址这偌大的园子要人管理也得养活自己。装饰华丽的人力车左右缠着:去福海?去绮春园?就十元,拖您去西洋楼您哪!谢了您哪,我说,我就是想自个儿走走。

    往前,沿着湖边再往前,穿过紫藤架,右拐,是遗址,大水法遗址。

    想不到的是西洋楼遗址这儿,竟也有这许多的人!一群系着红领巾的孩子尖叫着,互掷着石子;一群看来是高中生或是中专生的少男少女咬着冰棍儿在海宴堂遗址前高声唱着“对面的女孩走过来走过来”;几位看上去似干部样的人笑眯眯地摆好阵势在镌刻着“圆明园”字样的大理石碑前照相,那捧着相机的说:“笑!笑啊!”这群人就腆着发福的肚皮蠢蠢地笑了。在大水法遗址前,就是那小时在书中看到,十年前在那儿哭泣的五根大罗马柱那儿,一对情侣旁若无人地拥抱亲吻!

    刹那,我有点不知所措。亲吻示爱干吗到这大水法遗址面前呢?在这样残破颓败的乱石间,怎么笑得出来?要唱歌蛮好去那桃红柳绿的绮春园、长春园或是泛舟福海啊!看着这群在破碎的石块遗址前欢笑的老老少少,仰首凝视那高高而破残的罗马柱,眼眶和心口就都隐隐地疼起来。历史呢?耻辱呢?血性呢?!

    前些年,曾经围绕这圆明园需不需要重建有过争论,结果是理智的人们理解了废墟的价值,尊重了历史留给我们的残酷的真实,这片废墟留下了。当时,我是为留下拍案叫好。可今日见到这么多在废墟上在遗址前欢笑嬉闹的人群,我有点怀疑留下的必要了,在经过那么多岁月之后,眼前这般断壁残垣,还能提醒人们对一个多世纪前那场噩梦的记忆,那场中华民族的灾难与奇耻大辱?!

    该是来圆明园天就要阴的,一阵沙尘扑面而来,豆大的雨点砸了下来,劈头劈脸,欢笑的人群直往外冲。剩下我一人,静静地,在洁白的石块上坐下,对着这大水法遗址,对着这华美残破的罗马石柱,和苍天,和这些断壁残垣一起落泪哭泣……