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    I never wanted a dog, but now I'm so glad I have one.

About two years ago my wife, Cathy, got a little dog with a face only a mother could love. We named her Gertie. Gertie is the kind of dog that has to grow on you. So I decided that the dog would be trained. This didn't quite go as planned. At 15 weeks old, she was nearly made to leave the Pet smart Training School. She spent every night lying in our bed — snoring(打鼾) so loudly that I hardly got a good night's sleep.

    Then, about six months after she arrived, I felt that something in my heart was taking place, and I was unable to stop it. My behavior began to change. I began to smile at people when passing them in a street. I started calling my kids and, to my surprise, they started calling me. I even tried to speak to my grandchildren over the phone once. I was even glad to listen to laughter from a 10-month-old granddaughter. The point is that I was changing.

    My wife and I both agree that it is Gertie who has changed my behavior.

    Gertie is now nearly two years old and almost fully grown. I have come to like the pet little by little, though she is my wife's dog.

  1. (1) What did the writer think of the dog at the beginning?
    A . It wasn't very lovely. B . It could change his life. C . It looked very beautiful. D . It wasn't necessary to be trained.
  2. (2) What happened in about six months after Gertie arrived?
    A . The dog didn't like the training school. B . The writer never wanted the dog Gertie. C . The dog began to call my kids, too. D . The writer began to change his behavior.
  3. (3) Which of the following is NOT mentioned about the writers change?
    A . He started calling his kids. B . He began to smile at people. C . He liked helping his neighbours. D . He spoke to his grandchildren over the phone.
  4. (4) What can we learn from this passage?
    A . The dog has been trained very well. B . The dog has made the writer more friendly. C . The writer has become more confident. D . The writer likes the dog better than his wife.
判断下列说法是否正确。
  1. (1) 钱塘江秋潮如此壮观是因为当地的特殊地形形成的。
  2. (2) “空山不见人,但闻人语响。”这句诗出自苏轼的《鹿柴》。
  3. (3) 女娃溺亡后化身为鸟,决定填平大海,女娃的精神令人敬佩。
  4. (4) 写观察日记,主要是记录观察对象的变化。
把下面每组中与其他数大小不相等的数圈出来。
  1. (1) 7.080        7.08       7.80         7.0800
  2. (2) 1.9            1.90           1.900        19
  3. (3) 10.03        100.3      10.030         10.0300
将一个体积是48cm3的圆柱削成一个最大的圆锥,这个圆锥的体积是cm3 , 削去部分的体积是cm3
有关铝及其化合物的说法错误的是(    )
A . 铁易生锈,而铝在空气中较稳定,所以铁比铝活泼 B . 可用铝壶烧开水,不可用其长期存放食醋、碱水 C . 氧化铝是一种较好的耐火材料,但不可用氧化铝坩埚熔化NaOH D . 氢氧化铝能中和胃酸,可用于制胃药
下列常用干燥剂,不能干燥氯气的是(  )

A . 浓硫酸 B . 五氧二磷 C . 碱石灰 D . 氯化钙
When he looked t me, I smiled.
写出下列元素的元素符号
  1. (1) 氯元素
  2. (2) 钙
古罗马法学家乌尔比安在《论告示》第56编中记载:“如果某人伤害了一个自由人,却认为该自由人是他的奴隶,他将不被提起侵辱之诉。”由此可知,其旨在(    )
A . 维护公民的政治地位 B . 维护司法程序的公正 C . 保护公民的私有财产 D . 宣扬自由人超越法律
大豆子叶的颜色受一对等位基因控制,基因型为AA的个体呈深绿色,基因型为Aa的个体呈浅绿色,基因型为aa的个体呈黄色(在幼苗阶段死亡)。下列说法错误的是()

A . 浅绿色植株自花传粉,其成熟后代的基因型为AA和Aa,且比例为1:2 B . 浅绿色植株与深绿色植株杂交,其成熟后代的表现型为深绿色或浅绿色,且比例为1:1 C . 浅绿色植株连续自交n次,成熟后代中杂合子的概率为1/2n D . 经过长时间的自然选择,aa个体逐渐被淘汰
下列含有共价键的离子化合物是(   )
A . Al2O3 B . NH3·H2O C . CH3COONa D . Na2O
已知n是方程x²-2x-1=0的一个根,则3n²-6n-7的值为(    )
A . -5 B . -4 C . -3 D . -2
日本是我国一衣带水的邻邦,下列有关日本的叙述,正确的是(   )
A . 温泉众多,喜爱泡温泉 B . 盛大节日穿唐装 C . 桃花是日本的国花 D . 沿海平原面积广阔
下列句子中,加线词的解释不正确的一项是(     )

A . 群贤毕至,少长集       咸:都。 B . 列叙时人,录其所述     列叙:分别记载。 C . 我书比钟矫,当行       抗:抵挡。 D . 而羲之甚之             轻:轻视。
趣味数字

阿基米德与“ 定理”

阿基米德是古希腊的数学家、力学家,约公元前287年生于西西里岛的叙拉古,约公元前212年卒于叙拉古.阿基米德死后,他的墓碑上刻了一个等边圆柱,等边圆柱内部有一个内切球[如前面练习中第0104题的图(二).阿基米德的墓碑上为什么会刻上这一图形呢?原来这个图形所蕴涵的秘密,是阿基米德最为得意的发现.这个秘密是什么呢?想必同学们经过前面的计算已经发现了,那就是:如果等边圆柱中有一个内切球,则内切球的表面积是圆柱表面积的 ,内切球的体积也是圆柱体积的 .这个数学结论的奇妙绝伦的确让人叹服,大自然的和谐完美令人惊奇.

通过这个例子,你体会到数学的神奇魅力了吗?

“喊泉”是一种地下水的毛细现象,人们在泉口吼叫或发出其他声音时,声波传入泉洞内的储水池,进而产生“共鸣”等物理声学作用,激起水波,形成涌泉.声音越大,涌起的泉水越高,已知听到的声强m与标准声调 ( 约为 ,单位: 之比的常用对数称作声强的声强级,记作L(贝尔),即 ,取贝尔的10倍作为响度的常用单位,简称为分贝,已知某处“喊 泉”的声音响度y(分贝)与喷出的泉水高度x(米)满足关系式 ,现知A同学大喝一声激起的涌泉最高高度为50米,若A同学大喝一声的声强大约相当于10个B同学同时大喝一声的声强,则B同学大喝一声激起的涌泉最高高度约为
下列情况中,属于动能转化为势能的是(   )

A . 爆竹爆炸 B . 上紧的钟表发条带动指针转动 C . 滚摆上升 D . 雪橇从山坡上滑下.
同学甲拿住竖直木尺的顶端,同学乙在木尺下端做好握住木尺的准备,当同学乙看到木尺由静止下落,立即握住木尺,测得木尺下降了大约10cm, 则同学乙此次抓握的反应时间最接近(     )
A . 0.2s B . 0.15s C . 0.1s D . 0.05s
有关下图等温线图的叙述正确的是(   )

A . 该图反映的是七月份的气温分布 B . 该图反映的是一月份的气温分布 C . 该图反映的是南半球的气温分布 D . 图中大致同纬度的陆地气温低于海洋
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