学进去

It is reported that China’s biggest solar-powered drone (太阳能无人机), Qimingxing-50 or Morning Star 50, finished its first test flight in September, 2022. The drone was built by the Aviation Industry Corporation of China (AVIC,中国航空工业集团有限公司).

Drones have been used for quite a few years now. There are different ways of increasing the flying time. However, all these methods become less useful compared with the unlimited (无限的) power provided by the Sun. That’s why researchers have been working to make solar-powered drones that can not only stay in the air for longer but also perform more tasks while in the sky.

In 2018, China tested the first version (版本) of Morning Star, which was 91 feet wide. Made from a special kind of plastic the drone was so light, weighing only 41 pounds. Compared with it, the Morning Star 50 is much larger and has a wingspan (翼展) of 164 feet.

On September 3, Morning Star 50 took off from an airport in Yulin City in the Shaanxi province in northwest China and landed back 26 minutes later after a smooth flight. The staff told some local reporters that all flight systems worked normally and successfully. It is reported that this is a good start for future flights of the solar-powered drone that could last for many days or even months at a time.

1．When did China’s biggest solar-powered drone finish its first test flight?

A．In September, 2018.	B．In September, 2022.
C．In September, 2019.	D．In September, 2023.

2．What’s the length of a wingspan (翼展) of the Morning Star in 2018?

A．91 feet.

B．41 feet.

C．64 feet

D．164 feet.

3．What did the staff think of the Morning Star 50’s test flight according to the last paragraph?

A．It was dangerous.

B．It was successful.

C．It was unexpected.

D．It was simple.

4．What’s the mainly meaning accord to this passage?

A．To compare many different kinds of drones.	B．To encourage us buy drones.
C．To discuss drones’ all flight systems.	D．To report a drone’s test flight.