1 . So far, the world has relied on wood, oil, coal, and natural gas to produce energy for heating, lighting, transportation, and manufacturing. Since the 1950s, world consumption has been increasing persistently. In the year 2000, 80 percent of commercial energy was generated from the combustion of fossil fuels, and every day, 50 million barrels of oil are reined (支配) and converted to gasoline and other fuels. In addition to the rapid exhaustion of fossil fuels, the consequences of high consumption rates are pollution and global warming.
How long has the world been in high speed of burning fossil fuel for energy?

A．For half a century.	B．For nearly sixty years.
C．For over 70 years.	D．For more than a century.

2 . The population of rare Atlantic puffins in Maine, US, took a hit this year, as the number of chicks to survive a tough summer collapsed. The state’s coastal bays and the Gulf of Maine are among the fastest warming large water bodies on the planet, making the puffins’ fate a test-case for how climate change could disrupt marine ecosystems worldwide.

The phrase “took a hit” (in the 1^st paragraph) probably mean “________”.

A．suffer heavy losses	B．escape bad fortune
C．increase on a large-scale	D．decline moderately

3 . China’s policy of planting trees is likely playing a significant role in tempering its climate impacts. An international team has identified two areas in the country where the scale of carbon dioxide absorption by new forests has been underestimated. Taken together, these areas account for a little over 35% of China’s entire land carbon “sink”, the group says.
Which of the following is the best title of the passage?

A．Greenhouse Gas Emission Largely Reduced

B．Roles of Carbon Sinks Proved by New Study

C．China’s Forest Carbon Absorption Underestimated

D．Climate Impacts Balanced Due to China’s Afforestation

4 . Even before they became fashionable companions for humans, Asia’s wild otters faced plenty of threats. Their habitats are disappearing. They have long been hunted for their coats, or killed by farmers who wish to prevent them consuming fishes. The pet trade, which began picking up in the early 2000s but appeared to speed up a few years ago, has made things worse. The numbers of wild Asian small-clawed otters and smooth-coated otters, two species that are in highest demand, have declined by at least 30% in the three decades to 2019.

The international agreement that governs trade in wildlife, known as CITES, now prohibits cross-border trade in these species. But laws banning ownership are often poorly implemented, as in Thailand, or full of holes, as in Indonesia. And the otter-keeping craze has been dramatically improved by the internet, says Vincent Nijman of Oxford Brookes University.

The purpose of the writing is to ________.

A．advertise for a photo-sharing app

B．introduce the popularity of pet otters

C．discourage the illegal otter pet trade

D．describe the characteristics of otters

5 . Otters, are cute, this no one can deny. They have big eyes, short and flat noses and claws (爪子) like tiny hands. They look even cuter when they wear hats and throw food balls into their mouths as if they were bar snacks, like Takechiyo, a pet otter in Japan. Documenting Takechiyo’s funny behavior has earned his owner nearly 230,000 followers on Instagram, a photo-sharing app.

The function of the first paragraph is to ________.

A．present the main idea	B．introduce the main topic
C．set readers thinking	D．illustrate the writer’s point