内容正文：
Reading and Thinking
Book 3 Unit 4
Space Exploration
Hello, my friends!
I am losing heart. How can I succeed in making a rocket? Can you help with it?
Professor Li:
launch a spacecraft
universe
rocket
satellite
orbit
astronaut
transmit data/signals
Basic knowledge
Please help me collect the missing parts.
Mission 1
Enter
Choose the correct data to fill each missing part.
Something went wrong during the transmission. Some data were in a wrong order. Help me with the missing data.
A. Although scientists try to make sure nothing goes wrong, accidents can still happen.
B. They also really wish to discover other planets that are suitable enough to support life.
C. The future of space exploration remains bright.
D. After many experiments, they succeeded in making rockets that could escape Earth’s gravity.
Professor Li:
Circle some clues that may help!
Mission tips:
When filling the gaps, we should pay attention to:
The linking word(s): now, however, although, after, ...
Pronoun(s): they, it, this, ...
Repeated word(s) - the same or similar words or phrases
The position of the missing sentence
C. The future of space exploration remains bright.
D. After many experiments, they succeeded in making rockets that could escape Earth’s gravity.
B. They also really wish to discover other planets that are suitable enough to support life.
A. Although scientists try to make sure nothing goes wrong, accidents can still happen.
Para 1 “Are we alone? What’s out there?” Looking up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers. They make vehicles to carry brave people into space to find out the secrets of the universe. _________________________________
______________________________________
B. They also really wish to discover other
planets that are suitable enough to support life.
C. The future of space exploration remains bright.
D. After many experiments, they succeeded in making rockets that could escape Earth’s gravit