First live class from Chinas space station 中國(guó)空間站首次直播課

任嘉礽

中國(guó)空間站開(kāi)展首次太空授課活動(dòng)，開(kāi)啟了“天宮課堂”第一課?！疤战處煛钡灾緞?、王亞平、葉光富在中國(guó)空間站為廣大青少年帶來(lái)了一堂精彩的太空科普課。

Three Chinese astronauts wonderful voices resounded in the ground classrooms as the schoolchildren listened with attention. This was no ordinary course. It was delivered some 400 km above the Earth in Chinas space station by Zhai Zhigang， Wang Yaping and Ye Guangfu. A total of 1，420 students attended the lecture from five classrooms across China.

At the beginning of the class， Wang， the first female astronaut to enter Chinas space station， gave the students a tour of their living and working areas at the space stations Tianhe core module. She showed their bedrooms and toilet， a fully functional kitchen where the astronauts prepare their meals each day， the area where they conduct scientific experiments and their fitness equipment. In the kitchen， she showed the students a microwave， a water dispenser and a mini?refrigerator from which she took out a fresh apple.

In response to a students question about water， Wang said the water they drink is recycled， noting that there is no difference in taste between regular and recycled water. With a water recycling system， every drop of water is fully used in the space station.

After the tour， the three astronauts demonstrated several scientific experiments under zero?gravity conditions. First， Ye demonstrated experiments related to cell growth in the weightless environment in space with a video clip. They compared the growth and shape of cells in artificial gravity and zero?gravity to study their changing rules and mechanisms. “They look amazing in space， as if they are beating，” he said， explaining that the beating and gleaming occurred as the living cells had a bioelectrical reaction. Ye and Wang then demonstrated and explained why astronauts cannot walk in space like they did on the Earth and how they turn around in zero gravity. The team also conducted an experiment to show how lack of gravity causes loss in buoyancy （浮力）， an experiment using water refraction in a weightless environment using a water ball.

At the end of the 60?minute class， the three astronauts tried to arouse students curiosity through a real?time question and answer session. They answered the questions and wrapped up the class with their best wishes. “The secrets of space and science are boundless， and the future is yours，” said Zhai， commander of the Shenzhou?13 mission.

1. What was special about the class？

A. It was given by famous astronauts.

B. It was performed in distant space.

C. It was an online class for students.

D. It was designed for Chinese students.

2. How did the class begin according to the text？

A. The students observed the weightless state in space.

B. The astronauts showed their space lab to the students.

C. The astronauts gave students a tour of mysterious space.

D. The students learned about conditions in the Tianhe core module.

3. What can we know about the water in the space station？

A. It is adequate for the astronauts.

B. It tastes delicious.

C. It can be recycled.

D. It is kept in the fridge.

4. Why did the astronauts prepare a real?time question and answer session？

A. To advise students to learn science.

B. To stimulate students interest in space.

C. To conclude their class in a unique way.

D. To show their expectations of the students.

Ⅰ. Difficult sentence in the text

At the beginning of the class， Wang， the first female astronaut to enter Chinas space station， gave the students a tour of their living and working areas at the space stations Tianhe core module. 作為第一位進(jìn)入中國(guó)空間站的女性宇航員，王亞平在課程一開(kāi)始就帶領(lǐng)學(xué)生們參觀了空間站天河核心艙的生活和工作區(qū)域。

【點(diǎn)石成金】to enter Chinas space station為動(dòng)詞不定式作定語(yǔ)，female astronaut被序數(shù)詞the first修飾，故應(yīng)該用動(dòng)詞不定式作定語(yǔ)。

Ⅱ. Text?centered chunks

a total of 總數(shù)為

conduct scientific experiments 進(jìn)行科學(xué)實(shí)驗(yàn)

be related to 與……有關(guān)聯(lián);涉及……

arouse students curiosity 激發(fā)學(xué)生的好奇心

wrap up the class 圓滿(mǎn)完成課程