1.单选题- (共10题)
| A．透光性好 | B．常温下易与氧气反应 |
| C．易溶于水 | D．见光易分解 |
尼龙书包
塑料瓶
陶瓷花盆
手机塑料外壳| A．掘进机钻头是铬钼钢合金 | B．防水材料使用了聚氯乙烯 |
| C．皮带运输机用到了合成橡胶 | D．地下主体结构使用了钢筋混凝土 |
A. 塑料是最常见的有机合成材料，具有密度小、耐腐蚀、易加工等优点
B. 棉花和羊毛的主要成分都是蛋白质
C. 日常生活中使用的有机玻璃、腈纶、蚕丝等都属于合成纤维
D. 钛合金、玻璃钢、碳纤维复合材料等都属于新型有机合成材料
| A．羊毛属于天然纤维 |
| B．涤纶属于天然纤维 |
| C．羊毛主要成分为蛋白质 |
| D．燃烧方法来区分羊毛和涤纶 |
2.选择题- (共6题)
Do you know the song My future isn't a dream?I love the song{#blank#}1{#/blank#}it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard{#blank#}2{#/blank#}them.
When I was young, my father always{#blank#}3{#/blank#}me what I would be in the future. Sometimes I found it very hard to give {#blank#}4{#/blank#}right answer. “I want to be a doctor.” “I hope to be a{#blank#}5{#/blank#}(science)”. Some of these answers sound like{#blank#}6{#/blank#}(joke), but I never think they are {#blank#}7{#/blank#}(meaning).
I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.
Now my goal is to go to the{#blank#}8{#/blank#}(good) university in China after high school. I know it's hard, and I'll{#blank#}9{#/blank#}(meet) many problems. But no matter how difficult it is, I'll keep on{#blank#}10{#/blank#}(work) on it and never give up.
Do you know the song My future isn't a dream?I love the song{#blank#}1{#/blank#}it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard{#blank#}2{#/blank#}them.
When I was young, my father always{#blank#}3{#/blank#}me what I would be in the future. Sometimes I found it very hard to give {#blank#}4{#/blank#}right answer. “I want to be a doctor.” “I hope to be a{#blank#}5{#/blank#}(science)”. Some of these answers sound like{#blank#}6{#/blank#}(joke), but I never think they are {#blank#}7{#/blank#}(meaning).
I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.
Now my goal is to go to the{#blank#}8{#/blank#}(good) university in China after high school. I know it's hard, and I'll{#blank#}9{#/blank#}(meet) many problems. But no matter how difficult it is, I'll keep on{#blank#}10{#/blank#}(work) on it and never give up.
Do you know the song My future isn't a dream?I love the song{#blank#}1{#/blank#}it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard{#blank#}2{#/blank#}them.
When I was young, my father always{#blank#}3{#/blank#}me what I would be in the future. Sometimes I found it very hard to give {#blank#}4{#/blank#}right answer. “I want to be a doctor.” “I hope to be a{#blank#}5{#/blank#}(science)”. Some of these answers sound like{#blank#}6{#/blank#}(joke), but I never think they are {#blank#}7{#/blank#}(meaning).
I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.
Now my goal is to go to the{#blank#}8{#/blank#}(good) university in China after high school. I know it's hard, and I'll{#blank#}9{#/blank#}(meet) many problems. But no matter how difficult it is, I'll keep on{#blank#}10{#/blank#}(work) on it and never give up.
3.填空题- (共3题)
（1）太阳电池板的主要材料是硅，硅单质与金刚石结构相似， 则构成硅单质的粒子是____（填序号）。
①原子 ②分子 ③离子
（2）灯柱材料用铝合金而不用钢铁，原因之一是因为铝能空气中氧气反应，表面生成一层致密的氧化膜，具有很好的抗腐蚀性，其化学反应方程式为____。
（3）蓄电池白天充电时发生的反应为：2PbSO4＋2H2O=Pb＋X＋2H2SO4，则X的化学式为____。
（4）在太阳能路灯各组件中，其主要材料属于有机合成材料的是____（填序号）。
|
（1）棉花属于_______（填“天然”或“合成”）有机高分子材料。
（2）肉松中含量最多的营养素是_______。
（3）可用燃烧法鉴别肉松与棉花，点燃时闻到烧焦羽毛气味的是_______。
（4）制作肉松饼使用的发酵粉中含有碳酸氢铵(NH4HCO3)。碳酸氢铵中氢和氧两种元素的质量比为_____。
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【1】题量占比
单选题:(10道)
选择题:(6道)
填空题:(3道)
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【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：5
7星难题：0
8星难题：3
9星难题：5