自然与环境 through practical Chinese.
6 official Level-2 groups lead to 16 complete scenario tasks.
Choose a focused group.
Each group opens its first Level-3 task inside the complete scenario practice workspace, without creating another public directory route.
Open 3 official Level-3 tasks in scenario practice.
地4 scenesLEVEL-2 TOPIC地质环境Open 4 official Level-3 tasks in scenario practice.
大3 scenesLEVEL-2 TOPIC大气环境Open 3 official Level-3 tasks in scenario practice.
水2 scenesLEVEL-2 TOPIC水环境Open 2 official Level-3 tasks in scenario practice.
土2 scenesLEVEL-2 TOPIC土地环境Open 2 official Level-3 tasks in scenario practice.
生2 scenesLEVEL-2 TOPIC生物环境Open 2 official Level-3 tasks in scenario practice.
See how the area becomes action.
Open a lesson for dialogue, three verified words, a context decision, and complete speaking lines.
Explain a scientific model of cosmic origin and evolution with careful analogy.
地16 min 地球构造 · 02Explain Earth's interior without showing a cut-open solid planetExplain how scientists infer planetary structure from indirect evidence.
气16 min 不同气候类型 · 03Delay a flight departure before a convective storm reaches the airportExplain a weather decision using pressure, convection, timing, and uncertainty.
水16 min 水资源分布和利用 · 04Allocate drought water without counting the same source twiceDiscuss water allocation using source limits, uncertainty, and minimum needs.
土16 min 土地资源分布和利用 · 05Use temporary construction land without leaving permanent soil damagePlan temporary land use with soil, water, livelihood, and restoration safeguards.
生16 min 生物资源分布特点和利用 · 06Survey cave biodiversity without extracting the discoveryPlan biological-resource research with conservation and benefit safeguards.