Cardiovascular System 心血管系统
The cardiovascular system sends blood to every part of the body.
It is made up of the heart and many blood vessels like arteries and veins.
The heart pumps blood, delivering oxygen and nutrients to organs and tissues.
Arteries carry blood away from the heart, while veins bring it back again.
This system helps the body stay healthy and strong by moving blood around.
Regular exercise helps the cardiovascular system work well.
心血管系统把血液输送到全身每个部位。
它由心脏和动脉、静脉等许多血管组成。
心脏负责泵血，把氧气和养分送到器官和组织。
动脉把血液送出心脏，静脉则把血液带回心脏。
该系统通过输送血液帮助身体保持健康和强壮。
规律运动有助于心血管系统正常工作。
配套练习✍️ cardiovascular system /ˌkɑːdiəʊˈvæskjʊlə ˈsɪstəm/
🔍 完形填空（Cloze Test）
-
The cardiovascular system sends ______ to all parts of the body.
（a. water / b. blood / c. air） -
The heart and blood ______ make up this system.
（a. cells / b. vessels / c. bones） -
Arteries carry blood ______ from the heart.
（a. away / b. over / c. inside） -
Blood brings ______ and nutrients to organs and tissues.
（a. sweets / b. oxygen / c. sand） -
This system works better when you ______ often.
（a. sleep / b. exercise / c. read）
✅ 选择题（Multiple Choice）
-
What does the heart do?
A) Pumps blood
B) Makes sounds
C) Feeds the stomach -
What connects the heart to the rest of the body?
A) Muscles
B) Blood vessels
C) Hairs -
How do veins help this system?
A) Bring blood back to the heart
B) Pump blood out
C) Make oxygen
✏️ 填空题（Fill in the Blanks）
-
The heart pushes blood into ______ and veins.
（可选答案：arteries, shoes, ears） -
Blood travels around the ______.
（可选答案：body, car, table） -
Blood brings nutrients and ______ to each organ.
（可选答案：oxygen, salt, stone） -
Exercising helps the ______ system stay strong.
（可选答案：cardiovascular, train, skin）
练习答案✅
完形填空
- b. blood
- b. vessels
- a. away
- b. oxygen
- b. exercise
选择题
6. A) Pumps blood
7. B) Blood vessels
8. A) Bring blood back to the heart
填空题
9. arteries
10. body
11. oxygen
12. cardiovascular
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