China sent a new X-ray astronomical satellite in space, Einstein Probe, on Jan. 9, 2024.

According to Yuan Weimin, a researcher of the satellite project, the satellite is expected to find the first light from supernova explosions (超新星爆炸) in the universe, monitor high-energy transient (瞬态) objects in the universe, which are now poorly understood by scientists.

When developing the satellite, a new generation of detection equipment (探测设备) with large fields of view and high sensitivity (灵敏度) was needed. But the important question was how to make such equipment.

Lobsters (龙虾) are a kind of sea animal which can be found around the world. Scientists discovered early on that lobsters’ eyes are different from other animals’. Lobsters’ eyes are made up of lots of tiny square tubes, pointing to the same center, which allows light from all directions to reflect in the tubes and meet on the retina (视网膜), which gives lobsters a large field of view. Scientists then simulated (模仿) the lobsters’ eyes to create a telescope to catch X-rays in space.

Through working together with other organizations, the X-ray Imaging Laboratory began the research and development work on lobster-eye X-ray imaging technology in 2010 and finally made a breakthrough.

“Thanks to the lobster-eye telescope technology, the Einstein Probe is able to monitor the poorly known soft X-ray band with a large field of view and high sensitivity,” Yuan said.

【小题1】What is Einstein Probe?

A．A newly-found planet.	B．A newly-built space station.
C．A new X-ray astronomical satellite.	D．A new telescope technology.

【小题2】Why was Einstein Probe sent in space?

A．To enlarge the field of view.	B．To catch the supernova explosion.
C．To monitor the sensitivity of objects.	D．To improve the detection equipment.

【小题3】How did scientists create the telescope technology?

A．By simulating the lobsters’ eyes.	B．By observing lobsters’ movement.
C．By doing experiments on sea animals.	D．By comparing lobsters with other sea animals.

【小题4】What can we infer from the passage?

A．The new detection equipment looked like a lobster.

B．Scientists knew nothing about supernova explosion.

C．China is the first country to send Einstein Probe into space.

D．The lobster-eye telescope technology leads to Einstein Probe’s success.