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四年级科学评估

Authored by LEE Moe

Science

4th Grade

Used 1+ times

四年级科学评估
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. 哪项能够证明光沿着直线传播?

舞台的聚光灯直射在舞台

泳池里的水看起来比实际的浅

碗中的硬币看起来再比较浅的位置

放大镜放大所观察的物体

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

影响影子形状的因素包括?

物体与屏幕的距离

物体与光源的距离

光源照射的方向

物体摆放的方式

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如何让影子变大?

将物体远离光源

将物体靠近光源

将物体换成半透明体

将物体靠近屏幕

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

材料的来源有几种?

2

3

4

5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

棉是从哪来的?

岩石

石油

动物

植物

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

什么器官能帮助我们排汗?

皮肤

大肠

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

吸气时,膈是往哪移?

往上

往下

保持不变

往左移

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