Members of Shenzhou XIII gave a science lecture（讲座）to millions of students on December 9, 2021 in the Tiangong space station.

The three astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu said hello to students, teachers and other viewers（观众）when the lecture started in the afternoon. They explained their life and work inside the space station.

The astronauts made some interesting scientific experiments（实验）in space, such as a “water ball”. They also invited young viewers to do similar experiments along with them. Besides, they answered the questions from students during the lecture.

It was the first lecture of the Tiangong Class and more lectures will be held. Such activities will make young people know more about space and love science.

1．When did the members of Shenzhou XIII give the lecture?

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2．How many members are there in Shenzhou XIII?

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3．What did the astronauts explain inside the space station?

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4．Did the astronauts invite young viewers to do similar experiments along with them?

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5．What do you think of the lecture?

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【答案】1．On December 9, 2021.

2．Three/3.

3．They explained their life and work inside the space station.

4．Yes, they did.

5．I think the lecture is meaningful and educational. We can learn more about the space from it.（答案合理即可）

【解析】

【导语】

本文主要讲述了三名宇航员在天宫空间站上进行了科学讲座，介绍了讲座的内容以及学生的收获。

1．

根据“Members of Shenzhou XIII gave a science lecture（讲座）to millions of students on December 9, 2021 in the Tiangong space station”可知，在2021年12月9日份进行的讲座，故填On December 9, 2021.

2．

根据“The three astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu said hello to students”可知，神州十三号有三名成员，故填Three/3.

3．

根据“They explained their life and work inside the space station”可知，他们解释了他们在空间站里的生活和工作，故填They explained their life and work inside the space station.

4．

根据“They also invited young viewers to do similar experiments along with them”可知，他们还邀请年轻观众一起做类似的实验，故此处是肯定回答，故填Yes, they did.

5．

开放性题，答案合理即可。参考答案为：I think the lecture is meaningful and educational. We can learn more about the space from it.