Lectura TOEFL

📖 Texto de lectura

❓ Pregunta According to the passage, what is a primary reason why ecosystem services are often under-provided in free markets?

A. A. They are difficult to measure scientifically, making their value unknown.
B. B. They are public goods, which are non-excludable and non-rivalrous, leading to a lack of market incentives.
C. C. Governments tend to over-regulate these services, discouraging private investment.
D. D. Most ecosystem services are provisioning services that are already adequately priced.

✅ Respuesta correcta

B. They are public goods, which are non-excludable and non-rivalrous, leading to a lack of market incentives.

TOEFL Reading Tips

Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Infer vocabulary meaning from context, not just memory
Base inferences on the passage; avoid over-extrapolation
Manage time: about 18 minutes per passage

📝 免费在线练习

基于 700+ 托福真题题库 · 即时对错反馈

⚠️ 点击选项立即查看对错。建议先仔细阅读上方听力/文章再作答。

📝 题目：

加载中...

📚 Libros TOEFL

Official TOEFL iBT Tests Volume 2

Official TOEFL iBT Tests Vol.2

Ver en Amazon →

🎯 Practica en línea y obtén análisis con IA

📐 免费在线画户型图 → 一键导出 CAD 🛠️ 全部工具