世界地理与人文·英语30篇（2）

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大堡礁：脆弱平衡中的生命

Stretching over 2,300 kilometers, the Great Barrier Reef is the world’s largest coral structure.
Corals host microscopic algae called zooxanthellae, which provide food through photosynthesis.
When ocean temperatures rise just 1°C above normal for several weeks, corals expel these algae and bleach.
Mass bleaching events occurred in 2016, 2017, and 2020, killing up to 60% of shallow-water corals in some areas.
Runoff from sugarcane farms carries fertilizer that fuels algal blooms, blocking sunlight needed by corals.
Ranger teams now plant heat-resistant coral fragments grown in underwater nurseries.
Indigenous sea country managers work alongside scientists to monitor reef health using traditional knowledge.
Tourism supports local jobs but requires strict zoning to prevent anchor damage and pollution.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Corals host microscopic algae called zooxanthellae, which provide food through photosynthesis. 珊瑚体内共生着一种名为虫黄藻的微小藻类，通过光合作用为珊瑚提供养分。
Ranger teams now plant heat-resistant coral fragments grown in underwater nurseries. 护林员团队如今在海底苗圃培育耐热珊瑚幼体，并将其移植到礁区。
Stretching over 2,300 kilometers, the Great Barrier Reef is the world’s largest coral structure. 大堡礁绵延2300多公里，是全球最大的珊瑚结构。

这篇中文题目最接近哪一句？大堡礁：脆弱平衡中的生命一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？大堡礁绵延2300多公里，是全球最大的珊瑚结构。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） Great Barrier Reef: Life in Fragile Balance How to cook noodles A maths worksheet

Corals host microscopic algae called zooxanthellae, which provide food through photosynthesis.

Corals host microscopic algae called zooxanthellae, which provide food through photosynthesis.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Corals host microscopic algae called zooxanthellae, which provide food through photosynthesis.