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1、 2022年职称英语考试理工类B级完形填空练习题(1)阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请依据短文的内容从4个选项中选择1个答案。Dark Forces Dominate UniverseThe earth, moon, sun and all visible stars in the sky make up less than one percent of the universe. Almost all the rest is dark matter and dark energy, unknown forces that （1） astronomers.Obser
2、vations in recent years have changed the basic （2） of how the universe evolved and have indicated how little is known about the major forces and substances that （3） our world.Astronomers now know that luminous （发光的） matter-stars, planets and hot gas accounts （4） only about 0.4 percent of the univers
3、e. Non-luminous components, such as black holes and intergalactic （星系间的） gas, （5） up 3.6 percent. The rest is either dark matter, about 23 percent, or dark energy, about percent.Dark matter, sometimes （6） “cold dark matter,“ has been known for some time. Only recently have researchers come to unders
4、tand the key role it （7） in the formation of stars, planets and even people.“We （8） our very existence to dark matter,“ said physicist Paul Steinhardt and a co-author of a review on dark matter which （9） not long ago in the journal Science.“Dark matter dominated the structure （10） in the early unive
5、rse,“ Steinhardt said. “For the first few billion years dark matter contained most of the mass of the universe. You can think of ordinary matter （11） a froth （泡沬） of an ocean of dark matter. The dark matter clumps （结成块） and the ordinary matter falls into it. That （12） to the formation of the stars a
6、nd galaxies （星系）.“Without dark matter, “there would be virtually no structures in the universe.“The nature of dark matter is （13）. It cannot be seen or detected directly. Astronomers know it is there because of its （14） on celestial （天体的） objects that can be seen and measured.But the most dominating
7、 force of all in the universe is called dark energy, a recently （15） power that astronomers say is causing the galaxies in the universe to separate at a faster and faster speed.1 A worry B move C puzzle D reject2 A understanding B value C pattern D structure3 A changed B described C designed D shape
8、d4 A in B for C of D to5 A make B keep C set D get6 A written B called C identified D seen7 A signed B stressed C acted D played8 A believe B owe C feel D regard9 A appeared B carried C published D contributed10 A element B shape C formation D power11 A with B as C from D beside12 A turned B worked C led D attempted13 A unknown B interesting C different D visible14 A form B outcome C effect D source15 A seized B proven C caught D grasped【参考答案】1. C 2. A 3. C 4. B 5. A6. B 7. D 8. B 9. A 10. C11. B 12. C 13. A 14. C 15. B
