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ACT阅读词汇解析：自然科学

2018-03-21 14:32:12来源：网络

　　61D NS line 32

　　These elegant patterns form when growing bone meets and meshes with connective tissue, capturing blood vessels in dense, woven structure called Haversian canals.

　　Vessel: a vein in the body

　　61D NS line 32

　　These elegant patterns form when growing bone meets and meshes with connective tissue, capturing blood vessels in dense, woven structure called Haversian canals.

　　Sentience: ['sen??ns] n. 知觉 the faculty through which the external world is apprehended

　　63E SS Line 78

　　What “are you seeing when you see sentience in a creature?”

　　Creature: [?krit??] n. 生物 a living organism characterized by voluntary movement

　　63E SS Line 78

　　What “are you seeing when you see sentience in a creature?”

　　Neuron：[?n?rɑ:n] n. 神经细胞 a cell that is specialized to conduct nerve impulses

　　63E SS Line 88

　　But there are no neurons or synapses in the human brain that aren’t also in animals.

　　Stimulate: [?st?mj??let] v. 刺激 cause to be alert and energetic

　　63E SS Line 8

　　At Central Park the exercise with the log and snack goes by the grander name of “animal enrichment” and is intended to stimulate the bears’ minds as well as their appetites.

　　Chew: to bite the food several times before swallowing it

　　61B NS line 42

　　Workers roll the wax up away from their abdomens with the legs, and chew and soften it with saliva.

　　Digest

　　67C NS line 58

　　They will never eat again, and their digestive systems will atrophy.

　　Feast: eat

　　65E NS line10

　　They are large—and noisy一for insects that feast on sap: the smallest are 10 millimeters (just under half an inch) long, the largest 100 millimeters (four inches).

　　Forage: the act of searching for food and provisions

　　Plummet: decline dramatically

　　65D NS line 46

　　Warm venous blood flowing away from muscles heats cold blood coming in through the arteries, enabling bluefin to retain 98 percent of their body heat, giving them free rein to forage in cold waters and to dip in and out of the Gulf Stream, where sea temperatures plummet as much as 27 degrees Fahrenheit across one nautical mile.

　　Astronomy

　　Crater: a bowl-shaped geological formation at the top of a volcano

　　OG3 NS Lline33

　　“The basic idea,” J Melosh says, “is that an impact doesn’t just open a crater. With high velocities, the projectile vaporizes and expands into the atmosphere.”

　　Lava：rock that in its molten form (as magma) issues from volcanos

　　65C NS Line74

　　One of the first Martian rocks to be analyzed by the rover from NASA’s Pathfinder spacecraft appears to be andesite, a type of lava found in the Columbia Basin, an area some view as an apt geological analog to Mars.

　　Stellar: being or relating to or resembling or emanating from stars

　　But only one person in ten thousand is an astronomer. What possible relevance could these stellar explosions thousands of light years away have to all the others, whose business lies purely on or near the Earth’s surface?


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