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  3. Questions 1-4Reading Passage 1 has six paragraphs A-F.Choose the most suitable

Questions 1-4Reading Passage 1 has six paragraphs A-F.Choose the most suitable

游客2024-01-09  65
问题 Questions 1-4
Reading Passage 1 has six paragraphs A-F.
Choose the most suitable headings for paragraphs B-E from the list of headings below.
Write the appropriate numbersⅠ--Ⅸ in boxes 1-4 on your answer sheet.
　　　　　　List of Headings
Ⅰ  How the reaction principle works
Ⅱ  The impact of the reaction principle
Ⅲ  Writers’ theories of the reaction principle
Ⅳ  Undeveloped for centuries
Ⅴ  The first rockets
Ⅵ  The first use of steam
Ⅶ  Rockets for military use
Ⅷ  Developments of fire
Ⅸ  What’s next?
[br] Questions 5 and 6
Choose the appropriate letters A-D and write them in boxes 5 and 6 on your answer sheet.
选项 A、rockets could be propelled into the air.
B、space travel became a reality.
C、a major problem had been solved.
D、bigger rockets were able to be built.
答案 B
解析
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