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Plants on Earth have grown for hundreds of millions of years, yet President Donald

英语试题 05-05
Plants on Earth have grown for hundreds of millions of years, yet President Donald Trump's pick to lead his new climate team insists that they need more carbon dioxide (CO2) to boom.
Princeton physicist and carbon dioxide advocate William Happer has been selected to head the brand new Presidential Committee on Climate Security. The atomic scientist, who achieved recognition for his work on atomic collisions (原子碰撞), not climate science, declared that the planet's atmosphere needs significantly more CO2, which is reported to speed up climate change. Happer said plants use CO2 to live and more CO2 is actually a benefit to the Earth. He also stressed that Earth is experiencing a “CO2 starvation”, and concludes that “If plants could vote, they would vote for coal.”
Earth and plant scientists, however, find Happer's insistence that the plant kingdom would benefit from increased CO2 wrong-headed and it lacks evidence. For example, Earth's CO2 levels have increased sharply in the last century, and are now at their highest levels in at least 800,000 years — though other measurements show CO2 levels are higher than they've been in 15 million years. “The idea that increased CO2 is universally beneficial ‘to plants’ is very misguided,” Jill Anderson, an evolutionary ecologist specializing in plant populations, said in an interview. Data shows the evolution of global average temperature and CO2 concentration from 1850 to 2019. Though 2019 is a bit cooler than recent years, it is still one of the warmest years ever and lies close to the trend line of global warming.
Both independent academic organizations and government agencies around different parts of the world concluded more CO2 will bring many negative impacts to plant environments. And they added that “If someone is going to claim it is good, it's necessary for them to show evidence.”
12.Why does Happer think plants need more CO2?
A. Plants vote for more CO2.
B. CO2 speeds up climate change.
C. Plants need more CO2 to live.
D. CO2 is actually a benefit to the Earth.
13. What can be inferred from Paragraph 3?
A. 2019 is a bit warmer than recent years.
B. CO2 levels must be the highest in history.
C. The plant kingdom must benefit from increased CO2.
D. There are adequate evidence to support Happer's insistence.
14. What does the underlined word “it” in the last paragraph probably refer to?
A. More CO2.  B. The plant.  C. The world.   D. The US government.
15. The author's attitude in writing this passage can be described as    .
A. critical   B. objective  C. positive   D. negative

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