问题 阅读理解

On Thanksgiving Day, a teacher asked her class of first-graders to draw a picture of something they were thankful for. She thought that these children from poor families actually had little to be thankful for. And she found most of them drawing pictures of flowers or tables with food. The teacher was very surprised to see the picture Douglas handed in. It’s a hand, a simple hand.

But whose hand? The class were very interested in the strange picture. “I think it must be the hand of God that bring us food,” said one child, “A farmer,” said another, “Because he grows beautiful flowers.” Finally when the others were at work, the teacher went over Douglas’ desk and asked whose hand it was. “It’s your hand, Teacher,” she said quietly and shyly.

She remembered that she had often taken Douglas, a dirty lonely child, by the hand while having a class break. She often did that with the children. But it meant so much to Douglas. Perhaps this is everyone’s thanksgiving, not for the material things we get, but for the chance, in whatever small way, to give to others.

小题1:When did the story happen?

A.On Christmas Day.

B.On Teachers’ Day.

C.On Mother’s Day.

D.On Thanksgiving Day.小题2:Why did Douglas draw the picture?

A.He was good at drawing it.

B.His teacher asked him to draw it.

C.He wanted to show his thanks to the teacher.

D.He hoped to get a prize in drawing.小题3:What do you learn about Douglas from the passage?

A.He was a lonely child.

B.He was very active in class.

C.He always kept his hand clean.

D.He often answered questions loudly.小题4:According to the passage, which of the following is an opinion (意见;主张;看法), but not a fact?

A.The teacher went over Dauglas’ desk and talked to him.

B.Different people show their thanksgiving in different ways.

C.The teacher often took Douglas by the hand after class.

D.Most of the students were drawing the pictures of flowers or tables with food.

答案

小题1:D

小题2:C

小题3:A

小题4:B

小题1:本文第一句提到感恩节,所以本故事发生在感恩节,故本题选D。

小题2:本文第一段提到老师要求学生们画一幅画以表示对某人的感谢,第二段提到道格拉斯画了一只手,是老师的手,以表示对老师的感谢,故本题选C。

小题3:本文第三段第一句为She remembered that she had often taken Douglas, a dirty lonely child, 所以我们可知道格拉斯是一个孤独的儿童,故本题选A。

小题4:本文主要谈论了不同的人在感恩节所表现的方式是不一样,故本题选B 。

单项选择题
填空题

金属材料是工农业生产和人们生活离不开的材料之一,人类每年要从自然界获取大量的金属材料资源。

探究铁、铜、银三种金属活动性强弱。下面为某同学的实验方案,我们一起对实验分析、完善并归纳。

[实验药品]铁片、铜片、银片、20%稀硫酸、CuSO4溶液、AgNO3溶液、FeSO4溶液

[提出假设]三种金属的活动性强弱为:Fe>Cu>Ag

[实验方案]取体积相等的金属片,用砂纸打磨光亮;分别进行下列实验操作。

[观察分析]

(1)上述实验中能观察到金属表面有气泡产生的是()(填字母A、B、C)。

(2)我国古代“湿法炼铜”就是利用了实验试管D中的反应原理,该反应属于()反应(填:基本反应类型)。

[方案完善]通过上述实验还不能证明铁、铜、银三种金属的活动性强弱,请你在此基础上补充一个实验达到实验目的。

实验操作步骤 实验现象 结论()

[讨论归纳]

根据上述实验探究过程,请你归纳探究金属活动性强弱的方法一般有:()。

[拓展运用]

(1)向一定量的铁粉中逐滴加入稀硫酸至过量,图是反应过程中某种物质的质量Y随加入稀硫酸的质量变化的关系,则y不可能表示()

A.消耗铁粉的质量

B.生成硫酸亚铁的质量

C.溶液的总质量

D.生成氢气的质量

(2)铜的化学性质比铁稳定,但铜在一定条件下也会生锈。某化学兴趣小组用A~D装置探究铜生锈的条件(A、B、D中均为煮沸过的蒸馏水,B中试管上层充满CO2,C中放有干燥剂,向D中通入空气,一段时间后将试管密封)。

十天后发现,只有A中铜生锈,且水面处铜生锈较严重。铜生锈的条件是()。

(3)实验室废液中含有硝酸银、硝酸铜,实验小组利用稀硫酸和铁粉分别回收银和铜,设计如下方案。先在废液中加入过量的铁粉,充分反应后过滤得到滤渣A。再对滤渣A按如下流程图处理:

a.先在废液中加入过量的铁粉。

b.含有硫酸亚铁的滤液有()(填框图中字母)。

c.如果在过滤操作中发现滤液浑浊,在仪器洁净、滤纸未破损的前提下,你认为滤液的浑浊的原因可能是()。

向一定量的铁粉中逐滴加入稀硫酸至过量,图是反应过程中某种物质的质量Y随加入稀硫酸的质量变化的关系,则y不可能表示()。