①Have you ever paid for educational podcasts (播客) or live videos? Ask some people and most of them will say yes. The “pay-for-knowledge” has been a popular thing these years. You can find everything you want to know online.
②Why is “pay-for-knowledge” industry (产业) developing so quickly? First, it’s because of the Internet. With a fast network and a smartphone, anyone who has passed the identity (身份) check can be an online teacher, and anyone with an online account (号) can buy “pay-for-knowledge” products (产品). Second, people are afraid to miss any information. They hope for more useful and unknown information. What’s more, the need to learn new skills also pushes people to learn on such educational podcasts.
③Many facts have shown that the industry of “pay-for-knowledge” is lucrative. It is a good way to turn information into money. It is good for the development of our country and it can help sellers make lots of money. Besides, buyers can enjoy self-growth from it.
④However, “pay-for-knowledge” also causes a few problems. For one thing, the market is full of eye-catching words such as “How to be a good CEO?” It sounds like if you pay for it, you are sure to succeed. For another, many buyers buy them just for showing off.
⑤In a word, the best is the one that is right for you most. The “pay-for-knowledge” may be used as a good start for self-growth. But be careful when you make a choice, or your dream of success may not come true.
1.The “pay-for-knowledge” industry is developing quickly NOT because ________.A.people today don’t want to miss information |
B.the traditional education system (系统) doesn’t work |
C.today’s job market needs people to be more skilled |
D.there is a fast network and smartphones today |
A.making lots of money | B.getting much information |
C.causing a few problems | D.enjoying self-growth |
A.![]() | B.![]() | C.![]() | D.![]() |
A.Learn knowledge by ourselves online |
B.How to buy “pay-for-knowledge” products |
C.Stop tying any of the “pay-for-knowledge” products |
D.Choose “pay-for-knowledge” products properly |

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

