Bên cạnh Bài sửa đề thi 22/8"Many companies nowadays sponsor sport as a way of advertising themselves. Some people think that it is good for the world of sport. Others say there are disadvantages. Discuss both view and give opinion"HS đi thi đạt 7.0 IELTS WRITING, IELTS TUTOR cũng cung cấp luyện đề: New Caledonian crows and the use of tools IELTS LISTENING SECTION 4.
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II. Đề bài & Audio Luyện đề: New Caledonian crows and the use of tools IELTS LISTENING SECTION 4
Questions 31 - 40
Complete the notes below. Write ONE WORD ONLY for each answer.
New Caledonian crows and the use of tools
Examples of animals using tools
- Some chimpanzees use stones to break nuts.
- Betty (New Caledonian crow) made a 31……………… out of wire to move a bucket of food.
- Barney (New Caledonian crow) used sticks to find food.
New Zealand and Oxford experiment
- Three stages: crows needed to move a 32……………… in order to reach a short stick; then use the short stick to reach a long stick; then use the long stick to reach food.
Oxford research
- Crows used sticks to investigate whether there was any 33……………… from an object.
- Research was inspired by seeing crows using tools on a piece of cloth to investigate a spider design.
- Barney used a stick to investigate a snake made of 34………………
- Pierre used a stick to investigate a 35………………
- Corbeau used a stick to investigate a metal toad.
- The crows only used sticks for the first contact.
Conclusions of above research
- Ability to plan provides interesting evidence of the birds’ cognition.
- Unclear whether this is evidence of the birds’ 36………………
Exeter and Oxford research in New Caledonia
- Scientists have attached very small cameras to birds’ 37………………
- Food in the form of beetle larvae provides plenty of 38……………… for the birds.
- Larvae’s specific 39……………… composition can be identified in birds that feed on them.
- Scientists will analyse what the birds include in their 40………………
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