2.The self-portrait of Van Gogh on the reverse side of Head of a Peasant Woman was discovered when ______.
A.the cardboard was removed
B.Frances Fowle was visiting the museum
C.Lesley Stevenson was doing art research
D.the museum was preparing for an exhibition
正确答案：D
解析：Paragraph 1 says: ‘The self-portrait was revealed during an X-ray of an 1885 painting by Van Gogh, Head of a Peasant Woman, as the museum was preparing for an exhibition on impressionism…’
3.What do we know about the exhibition on impressionism?
A.It will be held at the Van Gogh Museum in Amsterdam.
B.It is organized by the National Galleries of Scotland.
C.It has attracted visitors all over the world.
D.It was closed last month.
正确答案：B
解析：The passage states: ‘…as the museum was preparing for an exhibition on impressionism (印象主义), which is scheduled to open at the end of the month.’ The museum referred to is the National Galleries of Scotland, as established in the first paragraph.
A.The source of inspiration for Van Gogh’s paintings.
B.The discovery of Van Gogh’s hidden self-portrait.
C.The contributions of Van Gogh to impressionism.
D.The influence of Van Gogh’s life on his works.
正确答案：B
解析：The entire Passage 1 centers on the discovery, context, significance, and presentation of a previously unknown hidden self-portrait by Van Gogh — not his artistic process, influence, or broader contributions.
6.What do we know about bristlecone pines from Paragraph 2?
A.Their circulating system is strong.
B.Their trunks are large in diameter.
C.They are seldom attacked by insects.
D.They can survive in harsh environments.
正确答案：D
解析：Paragraph 2 opens: ‘Bristlecone pines can be thousands of years old and thrive in harsh environments.’ This directly matches option D. Other options are unsupported or contradicted (e.g., their circulation system is *blocked* by beetles).
7.What does the study show about today’s fight between the bristlecone pines and the beetles?
A.Both sides are similar in strength.
B.The beetles are gaining the upper hand.
C.The bristlecone pines will win as before.
D.The beetles’ ability to defend themselves is weakened.
正确答案：B
解析：The passage states: ‘There are worrying signs that the beetles are gaining an advantage over the pines amid the historic drought…’ and cites a study concluding the pines’ defense (drowning beetles in sap) is impaired.
8.What may result from using chemicals to trap the beetles?
A.It may cause debates on environmental protection.
B.It may have a bad impact on the local tourism.
C.It may attract other insects into the forest.
D.It may pose a threat to other tree species.
正确答案：C
解析：The text says: ‘…though there are fears that such a move could have the unintended consequence of attracting uncontrollable insects into the forest.’
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