身体的阑尾–第 1 级

08-02-2024 15:00

阑尾在我们的肚子里。它看起来像一根小管子。它紧挨着大肠。大肠从食物中获取水分。它将剩余的食物排出体外。

科学家仍然不知道我们为什么会有阑尾。也许它是某些动物的重要器官。我们就是从这样的动物进化而来的。

阑尾仍然在我们体内。我们不需要它。没有它,我们也能生活。

一些研究表明阑尾很重要里面有好的细菌它们帮助消化食物它们能抵抗一些疾病

阑尾能让人变得更强壮。没有阑尾的人会患上更严重的疾病。

您可以在三级部分观看原始视频。

根据科学研究,人体阑尾有哪些潜在功能?

LEARN 3000 WORDS with CHINESE IN LEVELS

Chinese in Levels is designed to teach you 3000 words in Chinese. Please follow the instructions
below.

How to improve your Chinese with Chinese in Levels: 

Reading

  1. Read two news articles every day.
  2. Read the news articles from the day before and check if you remember all new words.

Listening

  1. Listen to the news from today and read the text at the same time.
  2. Listen to the news from today without reading the text.

Writing

  1. Answer the question under today’s news and write the answer in the comments.