(In an English class)
Mr Wu: Boys and girls, yesterday I asked you to collect some information about China's Tianwen 1 probe. Let's see what you've 16 .
Li Ping: I downloaded something. May I use the PPT, Mr Wu?
Mr Wu: Sure. 17
Li Ping: Look at this picture. On May 15, China's Tianwen 1 probe made a historic landing on Mars! Following the US, China is now the 18 country in the world to 19 land a probe on Mars. It will give Chinese 20 their first chance to study the Red Planet closely.
Gu Yue: 21 was Tianwen 1 probe sent?
Li Ping: In July 2020.The probe entered Mars orbit(轨道)in February 2021. Experts said the 22 of sending the probe into orbit was equal to hitting a small ball from Paris and landing it in a hole in Tokyo. And the final 23 was even more difficult.
He Mei: I hear it's 24 called the "nine minutes of terror".
Li Ping: Yes. In nine minutes, the probe had to reduce its 25 from 20,000 km per hour to zero, landing from 125 km above Mars. 26 the probe is 320 million km away from Earth, there is a signal delay(延迟)of over 10 minutes if the research team tries to control it from Earth. So the probe had to 27 the landing on its own!
Gu Yue: That's amazing!
Li Ping: Indeed. When the probe finally slowed down.at 100 meters above Mars.it stayed in the air and 28 the landing area. It had to move away from the objects in its way such as rocks, 29 finally touching down.
Mr Wu: Well done, Li Ping! Thank you for showing our 30 Tianwen 1 probe. Let's see who has something else to share…
16.
A. |
realized |
B. |
found |
C. |
understood |
D. |
met |
17.
A. |
Better not |
B. |
Not at all |
C. |
Go ahead |
D. |
With pleasure |
18.
A. |
first |
B. |
second |
C. |
third |
D. |
fourth |
19.
A. |
successfully |
B. |
carefully |
C. |
specially |
D. |
peacefully |
20.
A. |
inventors |
B. |
fighter |
C. |
passengers |
D. |
scientists |
21.
A. |
When |
B. |
Where |
C. |
How |
D. |
Why |
22.
A. |
possibilityB gravity |
B. |
difficulty |
C. |
safety |
23.
A. |
kickingB hitting |
B. |
sending |
C. |
landing |
24.
A. |
still |
B. |
instead |
C. |
ever |
D. |
also. |
25.
A. |
speed |
B. |
height |
C. |
weight |
D. |
length |
26.
A. |
Though |
B. |
Until |
C. |
Unless |
D. |
As |
27.
A. |
put out |
B. |
carry out |
C. |
run out |
D. |
look out |
28.
A. |
checked |
B. |
covered |
C. |
protected |
D. |
avoided |
29.
A. |
while |
B. |
once |
C. |
before |
D. |
after |
30.
A. |
lucky |
B. |
comfortable |
C. |
fantastic |
D. |
energetic |