After being lost for three decades,this tiny deer-like species has finally been rediscovered in the forests of Vietnam.The silver-backed chevrotain — also known as the Vietnamese mouse deer — is about the size of a large rabbit.They are shy,enjoy being alone,appear to walk on the hips of their hooves (蹄) and have two sharp teeth.Chevrotains typically weigh less than 5 kilograms.
Its last recorded sighting was in 1990,when a team of Vietnamese and Russian researchers obtained a dead chevrotain from a hunter. "Then nothing.So little known about it that the species was one big question mark.For so long,it has seemingly only existed as part of our imagination," said Vietnamese biologist Any Nguyen.
One of the biggest challenges was deciding where to start the search.After several interviews with local villagers who reported seeing a grey mouse deer,a field team set three camera traps for five months. "We had these two areas separated by quite some distance — one in the southern part of Vietnam and the other much further north," said Andrew Tilker,Asian Species Officer at the Global Wildlife Conservation.This resulted in 275 photographs of the species.The team then set up another 29 cameras in the same area,this time recording 1,881 photographs of the animal.
Tilker also warned that just because this species was found relatively easily,it doesn't mean it's not under threat. "This might represent the last population or one of a handful populations,in which case we need to take action immediately to put conservation measures in place to ensure its survival."
The team is now setting out to determine how large and stable this population of chevrotains is,assess the wider distribution of the species,and explore the threats to its survival.As part of the first-ever comprehensive survey on the species,the team began camera trap surveys in October in two additional areas.They will use all of the information that they gather to set up a project that strengthens the conservation of the species across its range.
(1)What can be learned about chevrotains? BB
A.They usually live in small groups.
B.They are a rare rabbit-sized species.
C.They weigh as much as an adult deer.
D.They've lived in Vietnam for 30 years.
(2)What did An Nguyen's words suggest? AA
A.Chevrotains became a mystery.
B.Chevrotains didn't exist at all.
C.It was fun to hunt for chevrotains.
D.It was too late to protect chevrotains.
(3)How did the field team conduct their research? CC
A.By interviewing some hunters.
B.By analyzing previous studies.
C.By taking pictures of chevrotains.
D.By employing villagers as guides.
(4)What is the last paragraph mainly about? DD
A.The threats to chevrotains.
B.The team's main challenges.
C.The team's new discoveries.
D.The protection of chevrotains.
【考點(diǎn)】說明文;環(huán)境保護(hù).
【答案】B;A;C;D
【解答】
【點(diǎn)評】
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發(fā)布:2024/5/27 14:0:0組卷:1引用:1難度:0.5
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D.Man can't live without natural areas.發(fā)布:2025/1/6 16:30:6組卷:0引用:1難度:0.5 -
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