( ) 5. When did China send the 22 satellites into space?
A. On February 15, 2022.
B. On February 21, 2022.
C. On February 26, 2022.
D. On February 27, 2022.
( ) 6. What may the underlined word "block" in paragraph 3 mean?
A. Help.
B. Provide.
C. Stop.
D. Change.
( ) 7. Which of the following is TRUE?
A. Humans have sent more than 3,000 active satellites into space now.
B. There are 22 satellites in the BeiDou Navigation Satellite System in all.
C. Satellites help emergency workers with predictions of changes in weather and climate.
D. Before the use of satellites, making phone calls to faraway places was easy.
( ) 8. What's the structure of this passage?
A. ①②③/④⑤
B. ①②/③④/⑤
C. ①/②③④⑤
D. ①/②③④/⑤
( ) 9. Which can be the best title for this passage?
A. Where do people send satellites?
B. What can satellites do for us?
C. How do people make satellites?
D. When can we see satellites?