托福考满分阅读练习

Question 10 of 10
Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some answer choices do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.
Drag your answer choices to the spaces where they belong. To remove an answer choice, click on it.To review the passage, click VIEW TEXT.
This passage discusses fossils that help to explain the likely origins of cetaceans—whales, porpoises, and dolphins.

Answer Choices

  • A. Recent discoveries of fossils have helped to show the link between land mammals and cetaceans.

  • B. The discovery of Ambulocetus natans provided evidence for a whale that lived both on land and at sea.

  • C. The skeleton of Basilosaurus was found in what had been the Tethys Sea, an area rich in fossil evidence.

选项拖拽困难时，可以试试缩放屏幕，或者拖拽时使用鼠标滚轮调整屏幕哦

  • D. Pakicetus is the oldest fossil whale yet to be found.

  • E. Fossils thought to be transitional forms between walking mammals and swimming whales were found.

  • F. Ambulocetus' hind legs were used for propulsion in the water.

选项拖拽困难时，可以试试缩放屏幕，或者拖拽时使用鼠标滚轮调整屏幕哦

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