शैडोइंग अभ्यास: Cambridge IELTS 17 Test 4 Reading passage 1 - वीडियो के साथ अंग्रेजी बोलना सीखें

पाठ बनाया जा रहा है...
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Bats to the Rescue How Madagascar's bats are helping to save the rainforest.
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There are few places in the world where relations between agriculture and conservation are more strained.
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Madagascar's forests are being converted to agricultural land at a rate of 1% every year.
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Much of this destruction is fueled by the cultivation of the country's main staple crop, rice.
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And a key reason for this destruction is
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that insect pests are destroying vast quantities of what is grown by local subsistence farmers, leading them to clear forests to create new paddy fields.
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The result is devastating habitat and biodiversity loss on the island, but not all species are suffering.
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In fact, some of the island's insectivorous bats are currently thriving, and this has important implications for farmers and conservationists alike.
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Enter University of Cambridge zoologist Ricardo Rocha.
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He's passionate about conservation and bats.
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More specifically, he's interested in how bats are responding to human activity and deforestation in particular.
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Rocha's new study shows
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that several species of bats are giving Madagascar's rice farmers a vital pest control service by feasting on plagues of insects.
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And this, he believes, can ease the financial pressure on farmers to turn forest into fields.
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Bats comprise roughly one-fifth of all mammal species in Madagascar and 36 recorded bat species are native to the island,
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making it one of the most important regions for conservation of this animal group anywhere in the world.
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Co-leading an international team of scientists, Rocha found
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that several species of indigenous bats are taking advantage of habitat modification to hunt insects swarming above the country's rice fields.
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They include the Malagasy mouse-eared bat, Major's long-fingered bat, the Malagasy white-bellied free-tailed bat, and Peters' wrinkle-lipped bat.
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These winter species are providing a valuable free service to Madagascar as biological pest suppressors, says Rocha.
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We found that six species of bat are preying on rice pests, including the paddy-swarming caterpillar and grass webworm.
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The damage which these insects cause puts the island's farmers under huge financial pressure, and that encourages deforestation.
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The study, now published in the journal Agriculture, Ecosystems, and Environment, set out to investigate the feeding activity of insectivorous bats in
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the farmland bordering the Rana Mofana National Park in the southeast of the country.
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Rocha and his team used state-of-the-art ultrasonic recorders to record over a thousand bat-feeding buzzes, echolocation sequences used by bats to target their prey,
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at 54 sites, in order to identify the favorite feeding spots of the bats.
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They next used DNA barcoding techniques to analyze droppings collected from bats at the different sites.
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The recordings revealed that bat activity over rice fields was much higher than it was in continuous forest, seven times higher over rice fields which were on flat ground,
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and 16 times higher over fields on the sides of hills, leaving no doubt that the animals are preferentially foraging in these man-made ecosystems.
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The researchers suggest that the bats favor these fields
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because lack of water and nutrient runoff make these crops more susceptible to insect pest infestations.
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DNA analysis showed that all six species of bat had fed on economically important insect pests.
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While the findings indicated that rice farming benefits most from the bats, the scientists also found indications that the bats were consuming pests of other crops,
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including the black twig borer, which infests coffee plants, the sugarcane cicada, the macadamia nut borer, and the sober tabby,
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a pest of citrus fruits.
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The effectiveness of bats as pest controllers has already been proven in the USA and Catalonia, said co-author James Kemp from the University of Lisbon.
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But our study is the first to show this happening in Madagascar, where the stakes for both farmers and conservationists are so high,
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local people may have a further reason to be grateful to their bats.
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While the animal is often associated with spreading disease, Rocha and his team found evidence that Malagasy bats feed not just on crop pests,
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but also on mosquitoes, carriers of malaria, Rift Valley fever virus and elephantiasis, as well as blackflies, which spread river blindness.
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Rocha points out that the relationship is complicated.
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When food is scarce, bats become a crucial source of protein for local people.
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Even the children will hunt them.
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And as well as roosting in trees, the bats sometimes roost in buildings, but are not welcomed there because they make them unclean.
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At the same time, however, they are associated with sacred caves and their ancestors, so they can be viewed as beings between worlds,
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which makes them very significant in the culture of the people.
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And one potential problem is that while these bats are benefiting from farming, at the same time deforestation is reducing the places where they can roost,
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which could have long-term effects on their numbers.
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Rocha says, With the right help, we hope that farmers can promote this mutually beneficial relationship by installing bat houses.
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Rocha and his colleagues believe that maximizing bat populations can help to boost crop yields and promote sustainable livelihoods.
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The team is now calling for further research to quantify this contribution.
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I'm very optimistic, says Rocha.
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If we give nature a hand, we can speed up the process of regeneration.
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इस पाठ की शब्दावली और बोलने के सुझाव

यह B2 स्तर का स्पीकिंग पाठ वीडियो “Cambridge IELTS 17 Test 4 Reading passage 1” पर आधारित है। सबसे ज़्यादा दोहराए गए शब्द ये हैं: bat, pest, Rocha, species, farmers। इस वीडियो में शैडोइंग के लिए 53 वाक्य और 881 शब्द हैं। बोला गया हिस्सा 5:18 लंबा है। वक्ता लगभग 166 शब्द प्रति मिनट की स्वाभाविक गति से बोलता है, जो रोज़मर्रा की बातचीत के करीब है। केवल 71% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं, इसलिए शब्दावली कठिन है।

इस वीडियो की मुख्य शब्दावली

वीडियो के 15 सबसे कठिन शब्द, उच्चारण और अर्थ के साथ:

शब्दउच्चारणअर्थ
farmer संज्ञा/ˈfɑɹ.mɚ/किसान
insect संज्ञा/ˈɪn.sɛkt/कीड़ा, कीट
crop संज्ञा/kɹɑp/फ़सल
insectivorous विशेषण/ˌɪnsɛkˈtɪv(ə)ɹəs/कीटभक्षी
paddy संज्ञा/ˈpædi/धान, धान का क्षेत्र
ecosystem संज्ञा/ˈikoʊˌsɪstəm/पारितंत्र
ancestor संज्ञा/ˈæn.sɛs.tɚ/पूर्वज
biodiversity संज्ञा/ˌbaɪoʊdəˈvɚsəti/जैव विविधता
blindness संज्ञा/ˈblaɪndnəs/अंधापन, अंधता
caterpillar संज्ञा/ˈkætɚˌpɪlɚ/इल्ली, पोका
cicada संज्ञा/sɪˈkeɪ.də/शलभ, सिकाडा
elephantiasis संज्ञा/ˌɛlɪfənˈtaɪəsɪs/फ़ीलपाँव, हाथीपाँव
livelihood संज्ञा/ˈlaɪvlihʊd/जीविका, आजीविका
mammal संज्ञा/ˈmæməl/स्तनपायी, स्तनधारी
rainforest संज्ञा/ˈɹeɪn.fɔɹ.ɪst/वर्षावन

ध्यान देने योग्य उच्चारण

  • “th” की ध्वनियाँ: thrive /θɹajv/, southeast /sawˈθɪjst/
  • “sh” और “zh” की ध्वनियाँ: deforestation /dɪˌfɒɹɪsˈteɪʃən/, echolocation /ˌɛkoʊloʊˈkeɪʃən/, infestation /ˌɪnfɛsˈteɪ̯ʃən/, preferentially /ˈpɹɛf.ɜː(ɹ)ˌɛn.ʃə.li/, implication /ˌɪmpləˈkeɪʃən/
  • लंबे शब्द — बलाघात सही रखें: deforestation /dɪˌfɒɹɪsˈteɪʃən/, insectivorous /ˌɪnsɛkˈtɪv(ə)ɹəs/, ecosystem /ˈikoʊˌsɪstəm/, biodiversity /ˌbaɪoʊdəˈvɚsəti/, caterpillar /ˈkætɚˌpɪlɚ/

हिंदी भाषियों के लिए मुश्किल ध्वनियाँ:

  • /v/ और /w/ का फ़र्क़ — /v/ में ऊपर के दाँत निचले होंठ को छूते हैं, /w/ में होंठ गोल होते हैं: insectivorous /ˌɪnsɛkˈtɪv(ə)ɹəs/, swarm /swɔɹm/, biodiversity /ˌbaɪoʊdəˈvɚsəti/, devastate /ˈdɛv.ə.steɪt/, livelihood /ˈlaɪvlihʊd/
  • /z/ — इसे “ज” (/dʒ/) न बनाएँ: zoologist /zoʊˈɑləd͡ʒɪst/, comprise /kəmˈpɹaɪz/, maximize /ˈmæksəmaɪz/, analyze /ˈæn.əˌlaɪz/, buzz /bʌz/
  • शब्द की शुरुआत में s + व्यंजन — पहले “इ” न जोड़ें: swarm /swɔɹm/, scarce /ˈskɛɚs/, staple /ˈsteɪ.pəl/, strain /stɹeɪn/, stake /steɪk/

इस वीडियो से अभ्यास कैसे करें

  1. पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
  2. 0.75× गति से शुरू करें, एक-एक वाक्य की शैडोइंग करें, और सहज लगने पर सामान्य गति पर लौटें।
  3. अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर farmer, insect, crop जैसे शब्दों पर ध्यान दें।

शैडोइंग तकनीक क्या है?

शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।

शैडोइंग तकनीक: पूरी चरण-दर-चरण गाइड पढ़ें →