水滴英语小短文，用阅读记住10000单词

Radius 桡骨

Theradiusis a long bone in your lower arm, on the same side as your thumb.
It stretches from your elbow down to your wrist.
The radius moves with the ulna to help you turn your hand and bend your arm.
You use your radius when you pick up a ball, write, or twist a bottle open.
You can feel the radius under your skin near the thumb side of your arm.
If the radius is hurt, it can be hard to hold or turn things.

桡骨是前臂里的一块长骨，在靠近大拇指的一侧。
它从肘部延伸到手腕。
桡骨和尺骨一起运动，帮助你转动手掌和弯曲手臂。
当你捡球、写字或拧瓶盖时，你都会用到桡骨。
在前臂靠近大拇指一侧的皮肤下可以摸到桡骨。
如果桡骨受伤，手握或转动东西会变得困难。

配套练习✍️ radius /ˈreɪ.di.əs/

🔍 完形填空（Cloze Test）

The radius is a bone on the ______ side of your lower arm.
(a. thumb / b. little finger / c. palm)

The radius and ulna help you ______ your hand.
(a. cover / b. find / c. turn)

You need your radius when you ______ a bottle open.
(a. close / b. twist / c. paint)

The radius goes from your elbow to your ______.
(a. shoulder / b. knee / c. wrist)

If your radius is hurt, it may be hard to ______ things.
(a. see / b. hold / c. hear)

✅ 选择题（Multiple Choice）

Which activity uses the radius?
A) Drawing a picture
B) Kicking a ball
C) Singing a song

On which side of your arm can you feel the radius?
A) Next to your thumb
B) Next to your elbow
C) Next to your little finger

Which bone moves with the radius in the forearm?
A) Femur
B) Ulna
C) Jaw

✏️ 填空题（Fill in the Blanks）

The radius helps you bend your ______.
（可选答案：arm, ear, nose）

The radius is found under the skin close to your ______.
（可选答案：thumb, toe, neck）

When you pick up a ball, you use your ______.
（可选答案：radius, knee, jaw）

Turning a bottle may be hard if the ______ is injured.
（可选答案：radius, finger, shoulder）

练习答案✅

完形填空

选择题
6. A) Drawing a picture
7. A) Next to your thumb
8. B) Ulna

填空题
9. arm
10. thumb
11. radius
12. radius

📌文章CEFR 等级：A1级

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