中國成功發射問天實驗艙

安徽 張 嵐

問天實驗艙艙體總長17.9 米，直徑4.2 米，發射重量約23 噸。這樣的“大個子”使它成為全世界現役在軌最重的單艙主動飛行器。問天實驗艙包含了哪些設備設施？它成功發射的背后，又藏了哪些高科技？

主題語境：科技 篇幅：348詞 建議用時：7分鐘

China launched its Wentian space laboratory at 2：22 pm on July 24th, sending the country's largest-ever spacecraft to the Earth's orbit to become part of the Tiangong space station.

Wentian laboratory module consists of three parts:a crew working compartment, an airlock cabin and a service module.With a length of 17.9 meters and a takeoff weight of 23 tons,the height of Wentian is almost equal to a six-storey building and the weight of ten cars.

There are three sleeping areas and one bathroom in the Wentian laboratory module.With six beds, the Chinese space station will be comfortable. After the following launch of Shenzhou ⅩⅤmanned spacecraft, crews of Shenzhou ⅩⅣand Shenzhou ⅩⅤcan join forces and once they do,the space station will be fully occupied.

The solar panel in the Wentian laboratory module is more than 55 meters,longer than half a football field; each solar panel has an area of about 110 square meters, roughly the size of a three-bedroom apartment, setting a new record for China's solar panel in orbit.Working together, the two giant solar panels will efficiently collect more solar energy, generating electricity of more than 430 kWh on average per day, which provides enough energy for space station operations. The electricity it generates is enough to power a normal household for one and a half months.

The lab will carry a set of 5-meter-long robotic arms outside the airlock,which are small but precise,making it easy for small and medium-sized devices to be grasped for more delicate operations.

Outside the Wentian laboratory module, two lamps and four high-definition cameras are set up to shoot and record the Earth and the vast outer space. Ground controllers will be able to clearly see the site situation and provide real-time security assurance when astronauts are doing extravehicular activities.

Wentian laboratory is packed with much equipment which makes noise and may disturb the astronauts. In order to provide a quiet working and resting environment, the engineers identified the noisiest equipment and took stricter noise control measures, which meet the medical standards,allowing the astronauts to sleep well.

Reading Check

1.What can we learn about the Wentian space laboratory from the first two paragraphs?

A.It is made up of four parts.

B.It was launched ahead of time.

C.It is as heavy as a six-storey building.

D.It belongs to the Tiangong space station.

2.How many sleeping areas are there in the Wentian laboratory module?

A.Three. B.Four.

C.Six. D.Eight.

3.How does the author develop the fourth paragraph?

A.By explaining scientific knowledge.

B.By providing research results.

C.By giving figures.

D.By giving examples.

4.What will guarantee that the astronauts can sleep well at night?

A.Effective equipment.

B.Aimed strategies.

C.Quieter outer space.

D.Astronauts'better adaptation.

Language Study

Ⅰ.Difficult sentence in the text

The lab will carry a set of 5-meter-long robotic arms outside the airlock, which are small but precise, making it easy for small and medium-sized devices to be grasped for more delicate operations.該實驗艙將在氣閘艙外攜帶一組5 米長的機械臂，它們雖小巧但精度高，便于抓取中小型設備，從而進行更為精細的操作。

【點石成金】本句是一個主從復合句，which are small but precise 是which引導的非限制性定語從句，修飾先行詞arms；making it easy...operations 是現在分詞短語作結果狀語。

Ⅱ.Text-centered chunks

consist of 包括；由……組成（構成）

join forces 齊心協力；聯合

set a new record 創造新紀錄

be packed with 有大量……的

in order to 為了；以便；目的是

allow sb to do 允許某人做……