ĐỀ THI IELTS READING VÀ ĐÁP ÁN - The History Of The Tortoise
Native Speaker - Trung tâm tiếng Anh 1 kèm 1 online qua Skype xin giới thiệu đến các bạn đề thi Ielts với tựa đề " The History Of The Tortoise" thuộc chủ đề động vật. Native Speaker hi vọng cung cấp cho bạn thật nhiều đề luyện thi ielts reading nhằm giúp các bạn luyện tập kỹ năng đọc các vấn đề học thuật như khoa học, báo chí, thiên văn, địa lý. Chúc các bạn kiên nhẫn luyện tập lần lượt hết đề này đến dề khác để thấy khả năng đọc tiến bộ rõ rệt sau mỗi đề thi reading ielts.
If you go back far enough, everything lived in the sea. At various points in evolutionary history, enterprising individuals within many different animal groups moved out onto the land, sometimes even to the most parched deserts, taking their own private seawater with them in blood and cellular fluids. In addition to the reptiles, birds, mammals and insects which we see all around us, other groups that have succeeded out of water include scorpions, snails, crustaceans such as woodlice and land crabs, millipedes and centipedes, spiders and various worms. And we mustn’t forget the plants, without whose prior invasion of the land none of the other migrations could have happened.
Walter Joyce and Jacques Gauthier, at Yale University, obtained three measurements in these particular bones of 71 species of living turtles and tortoises. They used a kind of triangular graph paper to plot the three measurements against one another. All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph. There was no overlap, except when they added some species that spend time both in water and on land. Sure enough, these amphibious species show up on the triangular graph approximately half way between the ‘wet cluster' of sea turtles and the ‘dry cluster' of land tortoises. 'The next step was to determine where the fossil fell. The bones of P quenstedti and P. talampayensis leave us in no doubt. Their points on the graph are right in the thick of the dry cluster. Both these fossils were dry-land tortoises. They come from the era before our turtles returned to the water.
You might think, therefore, that modem land tortoises have probably stayed on land ever since those early terrestrial times, as most mammals did after a few of them went back to the sea. But apparently not. If you draw out the family tree of all modern turtles and tortoises, nearly all the branches are aquatic. Today’s land tortoises constitute a single branch, deeply nested among branches consisting of aquatic turtles. This suggests that modern land tortoises have not stayed on land continuously since the time of P. quenstedti and P. talampayensis. Rather, their ancestors were among those who went back to the water, and they then re-emerged back onto the land in (relatively) more recent times.
Answer the questions below
Choose NO MORE THAN TWO WORDS from the passage for each answer
Write your answers in boxes 27-30 on your answer sheet.
27. What had to transfer from sea to land before any animals could migrate?
28. Which TWO processes are mentioned as those in which animals had to make big changes as they moved onto land?
29. Which physical feature. possessed by their ancestors, do whales lack?
30. Which animals might ichthyosaurs have resembled?
Do the following statements agree with the information given in Reading Passage 3?
In boxes 31-33 on your answer sheet, write
TRUE if the statement agrees with the information
FALSE if the statement contradicts the information
NOT GIVEN if there is no information on this more than once.
31.Turtles were among the first group of animals to migrate back to the sea.
32.It is always difficult to determine where an animal lived when its fossilized remains are incomplete.
33.The habitat of ichthyosaurs can be determined by the appearance of their fossilized remains.
Complete the flow-chart below
Choose NO MORE THAN TWO WORDS AND/OR A NUMBER from the passage for each answer
Write your answers in boxes 34-39 on your answer sheet.
Method of determining where the ancestors of turtles and tortoises come from
Step 1: 71 species of living turtles and tortoises were examined and a total of 34 ................were taken from the bones of their forelimbs.
Step 2: The data was recorded on a 35 ................... (necessary for comparing the information). Outcome: Land tortoises were represented by a dense 36 .................. of points towards the top. Sea turtles were grouped together in the bottom part.
Step 3: The same data was collected from some living 37 .................. species and added to the other results. Outcome: The points for these species turned out to be positioned about 38 .................. up the triangle between the land tortoises and the sea turtles.
Step 4: Bones of R quenstedti and P talampayensis were examined in a similar way and the results added.
Outcome: The position of the points indicated that both these ancient creatures were
Choose the correct letter A, B, C or D.
Write the correct letter in box 40 on your answer sheet.
According to the writer, the most significant thing about tortoises is that
A. they are able to adapt to life in extremely dry environments.
B. their original life form was a kind of primeval bacteria,
C. they have so much in common with sea turtles.
D. they have made the transition from sea to land more than once.
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28. breathing reproduction (In Either Order)
31. NOT GIVEN
34. 3 measurements
35. (triangular) graph
38. half way
39. dry-land tortoises