2.The word “exposed” in line 1, paragraph 4, is closest in meaning to ______.
A.affected
B.vulnerable
C.sick
D.unprotected
正确答案：B
解析：‘Exposed’ here means ‘subjected to (harmful air pollutants)’, implying susceptibility or vulnerability — not necessarily already affected or sick. ‘Vulnerable’ best captures this sense of being at risk due to contact.
3.“The Lancet” in line 2, paragraph 7, refers to ______.
A.a climate conference
B.an ecological safety magazine
C.a medical journal
D.a forum
正确答案：C
解析：The Lancet is a world-renowned peer-reviewed medical journal, first published in 1823. Contextually, it publishes health impact reports (e.g., on climate change and public health), confirming its identity as a medical journal.
4.Which of the following can be inferred from the passage?
A.Power plants could hardly avoid air pollution.
B.Climate change affects physical rather than mental health.
C.It is difficult to reduce air pollution quickly.
D.Carbon-intensive energy technologies are most responsible for air pollution.
正确答案：D
解析：The passage states: ‘energy technologies that produce greenhouse gases also often produce these other air pollutants simultaneously’, and lists diesel/gasoline vehicles, coal power plants, biomass cooking, and industrial processes — all carbon-intensive — as major co-emitters of CO₂ and PM/NOₓ. It further emphasizes that transitioning away from them reduces air pollution ‘quickly and economically’, implying their dominant role.
5.According to the passage, which of the following statements is NOT true?
A.Less air pollution cannot possibly result in immediate benefits.
B.Climate change mitigation could help to reduce public health problems.
C.Energy technologies often produce air pollutants.
D.Both China and UK should strive to develop low-carbon energy technologies.
正确答案：A
解析：The passage explicitly contradicts A: ‘an arguably stronger — and certainly more immediate — case lies in the immediate benefits resulting from lower levels of air pollution’. So A is false — making it the correct choice for ‘NOT true’.
B.The world’s biggest bumblebee at the risk of distinction
C.How European bumblebee species kill others
D.How pathogens afflict bumblebees
正确答案：B
解析：While pathogens and invasive species are key mechanisms, the central subject is Bombus dahlbomii — introduced as ‘the world’s largest bumblebee’ and described as ‘at risk of extinction’ (‘wiped out from much of its historic range’, ‘how endangered the species has become’). ‘Flying mouse’ (A) is only a metaphor; C and D are supporting details, not the main focus.
7.All of the following refer to the same thing in the passage EXCEPT ______.
A.the pathogen
B.the invading species
C.the microbial parasite
D.A. bombi
正确答案：B
解析：A, C, and D all refer to Apicystis bombi — a parasitic protozoan (‘pathogen’, ‘microbial parasite’, abbreviated as ‘A. bombi’). ‘The invading species’ (B) refers to the non-native bumblebees (B. ruderatus and B. terrestris), not the parasite they carry.
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