2014年鲁教版九年级化学下册 9.1 常见的金属材料练习卷

1.

某钢铁厂每天消耗4000t含Fe₂O₃80%的赤铁矿石，该钢铁厂理论上可日产含Fe98%的生铁质量是多少？（计算结果保留到0.1）

查看解析收藏

2.

焊锡是锡铅合金，把铅加入锡中制成合金的主要目的是( )
A．增加强度 B. 降低熔点
B．增加延展性 D. 增强抗腐蚀性

查看解析收藏

3.

下列有关铁的说法不正确的是( )

A．生铁和钢都是铁合金

B．铁是地壳中含量最多的金属元素

C．工业炼铁的原理是：3CO＋Fe₂O₃

2Fe＋3CO₂

D．用铁制作铁锅利用了铁的导热性

查看解析收藏

4.

下列设计中不符合实验设计意图的是（）

A．说明CO具有还原性

B．说明生成物CO₂的密度比空气大

C．说明CO和Fe₂O₃的反应需要加热

D．可以防止有毒的CO气体对空气的污染

查看解析收藏

5.阅读短文，从短文下面方框中的六个句子中选择五个还原到短文中，使短文通顺完整、衔接自然。

Someone says, "{#blank#}1{#/blank#}" But I think time is even more important than money. Why? Because when money is spent, we can get it back. However, when time is gone, it'll never return. __{#blank#}2{#/blank#}__

It goes without saying that the time is usually limited (有限的). Even a second is very important. {#blank#}3{#/blank#}But it is a pity that there are a lot of people who do not know the importance of the time. They spend their limited time smoking, drinking and playing. {#blank#}4{#/blank#}

In a word, we should save time. {#blank#}5{#/blank#} Remember we have no time to lose.

A. That is why we must not waste time.

B. Time is money.

C. They don't know that wasting time means wasting part of their own lives.

D. We should make full use of our time to do something useful.

E. We should make use of our time to do everything.

F. We shouldn't leave today's work for tomorrow.

查看解析收藏

6.阅读短文，从短文下面方框中的六个句子中选择五个还原到短文中，使短文通顺完整、衔接自然。

Someone says, "{#blank#}1{#/blank#}" But I think time is even more important than money. Why? Because when money is spent, we can get it back. However, when time is gone, it'll never return. __{#blank#}2{#/blank#}__

It goes without saying that the time is usually limited (有限的). Even a second is very important. {#blank#}3{#/blank#}But it is a pity that there are a lot of people who do not know the importance of the time. They spend their limited time smoking, drinking and playing. {#blank#}4{#/blank#}

In a word, we should save time. {#blank#}5{#/blank#} Remember we have no time to lose.

A. That is why we must not waste time.

B. Time is money.

C. They don't know that wasting time means wasting part of their own lives.

D. We should make full use of our time to do something useful.

E. We should make use of our time to do everything.

F. We shouldn't leave today's work for tomorrow.

查看解析收藏

7."I'm a Singer" is __________ an interesting TV show _________ many people like watching it.

查看解析收藏

8.

生铁和钢都是铁的合金。下表对生铁和钢的成分、性能作了比较。

	生铁	钢
含碳量	2%～4.3%	0.03%～2%
性能	硬而脆、无韧性、可铸、不可煅轧	坚硬而有韧性、可铸、可煅轧

根据表中提供的信息，回答下列问题：
(1)与生铁相比，钢有什么优良的性能？(答出一条即可) 。
(2)写出钢的一条用途：。
(3)比较生铁与钢的成分，说明生铁与钢在性能上有较大差异的主要原因：。

查看解析收藏

2014年鲁教版九年级化学下册 9.1 常见的金属材料练习卷

1.计算题(共1题)

2.单选题(共3题)

3.选择题(共3题)

4.填空题(共1题)

【1】题量占比

【2】：难度分析