精品文档---下载后可任意编辑第一节 单项填空(共 15 小题;每小题 1 分,共 15 分)从每题所给的 A、B、C、D 四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。1. Scientists are building a powerful instrument, which ______ them see deep into space.A. has helped B. will help C. helped D. would helped2. Large groups that want to visit the museum have to get permission ______ they visit.A. unless B. where C. as D. before3. Since 18th January, 2024, some airlines in China ______ mobile phone use on their aircrafts. A. allow B. allowed C. have allowed D. had allowed 4. The dictionary has 100 new words _________ into its latest edition.A. add B. adding C. added D. being added 5. Moving abroad means entering a culture ______ the customs and the language are different. A. where B. when C. which D. whose 6. —Could you tell me ______ the train from New York will be arriving on time? —Yes, sir. It should be arriving in 10 minutes. A. when B. how C. why D. if 7. The snowstorm ______ several days before it hit the northern areas. A. would predict B. had predicted C. would be predicted D. had been predicted8. I ______ not have her new telephone number; let me check. A. may B. must C. shall D. need 9. Once Jason becomes interested in some topic, he can’t help thinking about it ______ he goes. A. however B. wherever C. whenever D. whomever 10. The book ______ next year is supposed to be a best-seller.A. publishing B. being published C. to be published D. to have published11. The trouble is ______ we can reach the conference center within twenty minutes in the rush hour.A. what B. how C. when D. why12. Mike hasn’t appeared for two weeks, ______ his friends are wondering what has happen...