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第二周:“2024新课标试题”实践
英语学科
2024新课标试题•英语新理念素材试题
02
跨学科
Do you like doing experiments? In this experiment, you will use electricity to split(分离) water into hydrogen(氢) and oxygen.
What You Need
✦two 2B pencils with no erasers at the ends scissors
✦thin piece of cardboard
✦1 teaspoon salt
✦small clear glass, half full of warm water two 20cm pieces of electrical wire (线)
✦9-volt battery
1. Sharpen each pencil at both ends. Use scissors to cut two holes in the cardboard about 2.5cm away from each other. Then push the pencils through the cardboard.
2. Add the salt in the glass of water for better electrical conductivity(导电性).
3.Wrap (缠绕) one end of one wire around the positive terminal(+) of the battery, and the other end around the tip (尖端) of one of the pencils. Wrap the second wire around the negative terminal(-) of the battery and the tip of the second pencil.
4. Place the free ends of the pencil in the water, with the cardboard resting on top of the glass.
01
In this experiment, what is used to split water into hydrogen and oxygen?
A.Salt.
B.Scissors.
C.Electricity.
D.Cardboard.
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02
How many kinds of materials are needed in this experiment?
A.4.
B.5.
C.6.
D.7.
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03
Why do we add the salt into the water in this experiment?
A. To split water.
B. To warm water up.
C. To collect oxygen.
D. To increase electrical conductivity.
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04
In this experiment, the ends of the wires are connected to the battery and ______.
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05
In which section of a magazine can you probably read the text?
A. Science.
B. Health.
C. Life.
D. Sports.
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第二周:“2024新课标试题”实践
生物学科
2024新课标试题•生物考前典型试题
要想保证身体健康,除增强身体免疫力外,还要养成多锻炼、勤洗手等良好的生活习惯,原因是:
(一)我们生活的环境中,生存着大量的病原体,如细菌和真菌,但人们却不容易患病,原因是人体有三道防线,抵御病原体的侵入,据图回答。
甲 乙
丙 丁
【1】
图中甲、乙、丙、丁四幅图,属于第一道防线的是 。
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【2】
人体的第三道防线主要是由免疫器官和 组成的。
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(二)勤洗手能减少手上病原体数量。某校生物兴趣小组设计了探究“洗手能否减少手上的细菌和真菌数量”的实验,请分析并回答:
【3】
实验中,相当于细菌、真菌一般培养方法中“接种”的是实验步骤是 (填序号)。
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【4】
预期实验结果与结论:若 ,则说明洗手能减少手上的细菌数量。
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【5】
实验中设置C组的目的是 。
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END
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