Unit 2 Looking into the Future 知识点检测-2023-2024学年高中英语人教版（2019）选择性必修第一册

选择性必修一Unit2知识点检测 I.词形变体 1．persuade vt.劝说；说服→________________ adj.有说服力的→_______________n n．说服 2．distant adj.遥远的；远处的；疏远的；心不在焉的→_______________ n．距离 3．secure adj.安全的；安心的；可靠的；vt.获得；拴牢；保护→__________ n．安全；保护措施 4．_________________ n．爱好；偏爱→prefer vt.更喜欢；宁愿 5．__________________ n．警告；警示；先兆→warn vt.警告 6．combine vt.& vi.(使)结合；混合→___________________ n．结合；联合 7．_____________ n．职业；占领→occupy vt.占据；占用；使忙于(做某事)→_____________ adj.被占领的；使用中；忙于 8．absence n．不存在；缺乏；缺席→________________ adj.缺席的；不在的；缺乏的 9．emphasis n．强调；重视；重要性→__________________ vt.强调 10．luxury n．奢华→__________________ adj.奢侈的 11．resist vi.& vt.抵制；反抗；抵挡→_______________ n．抵制；反对；抗拒→______________ adj.反抗的；抵制的 12．accurate adj.精确的；准确的→_____________ adv.精确地；准确地→_____________ n．精确性 13．______________________ n．图书管理员；图书馆馆长→library n．图书馆 II.阅读理解 Scientists say a mineral found in moon dust suggests Earth's moon is 40 million years older than scientists had believed. The finding was made by researchers who examined moon rock samples gathered from the moon surface in 1972—the last time humans walked on the moon. The samples were part of a collection of 110 kilograms of dust and rock returned to Earth for scientific study. The American space agency NASA says the leading theory on how the moon formed involves a huge crash. NASA says a Mars-sized object likely crashed into Earth and released material from both objects, which formed the moon. But the exact timing of when the moon was created has been difficult to identify. A new study based on the 1972 samples suggests the moon formed about 4.46 billion years ago. The research was led by a team from the Field Museum of Natural History in Chicago, Illinois. The study examined small minerals found in the moon dust. The team said these minerals contained Zircon, which is believed to have formed when the moon surface cooled after the crash. Philipp Heck, a researcher from the Field Museum, noted that the huge crash that formed the moon was a major event that changed Earth's rotational （自转的） speed.