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People were surprised to see a group of Yangtze finless porpoises（江豚）swimming in the Yangtze River on March 23, 2022. They jumped, hunted and played. The Yangtze finless porpoises have been on the list of animals in danger since 2013. In 2020, the government put a 10-year fishing ban（禁令）in place. Now the government’s environmental protection action is working.
Ocean is Singing
Ecuador（厄瓜多尔）takes action to protect the ocean. It provides “underwater highway” which helps animals travel in protected waters. And the government has also built a new reserve. The reserve is cut into two parts. If people catch fish in one part of the reserve, no fishing will be allowed（允许）in the other. That means “long line” fishing will never be allowed in the reserve.
The Coldest Post Office is Hiring
Four people are needed to work at the world’s coldest post office—Penguin（企鹅）Post Office. It is in Antarctica（南极洲）. The four people each have their own jobs, but they work together to help the tourists who come by boat. They should also watch wildlife, including counting penguins and collecting environmental information.
1．The best title（标题） for the first paragraph would be _________.| A．Saving Birds in Danger | B．The River is Back to Life |
| C．Protecting the Environment | D．The Fishing Ban is Working |
| A．“Underwater highway” helps animals travel faster. |
| B．People can never fish in the reserve. |
| C．All oceans in Ecuador are cut into two parts. |
| D．The reserve is built to stop “long line” fishing. |
| A．take a boat to Antarctica | B．collect information |
| C．feed the penguins | D．watch tourists’ life |
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
