Question

It was a physical class. But it was nothing like previous ones — the class was “attended”

by over 60 million students across China, and the teacher was not even on the planet: she was 340 kilometers above the earth.

“Hello, everyone. I’m Wang Yaping. I’ll host your lecture today.” Smiling to the camera, Wang, China’s second female astronaut, started her video class on June 20 on board the Tiangong-1 space station.

To show how Newton’s Laws work in space, Wang and her fellow astronauts used simple items like balls and spinning tops. The highlight of the lecture was when Wang made a film of water using a metal ring, something that only happens in zero gravity, where the surface tension(張力) of water is much higher than it is on the earth. She then took it a step further by pouring more water onto the film and turning it into a water ball, leaving the audience amazed by what they saw.

The 40-minute lesson seemed to have passed too quickly for students to see enough of those magical experiments. But sending stuff into space is really expensive. According to The Beijing Times, every kilogram launched into space cost 20,000 dollars. The experimental items taken this time were all strictly selected and weighed about 2.9 kilograms in total. This adds up to quite a large price tag.

The organizers of the event also had to consider the time of day: the communication signal between the earth and Tiangong-1 was best during that specific 40 minutes, when the spacecraft was flying within the coverage of all of the ground-based testing stations.

1.Why is the class different from a common one?

A. Because it took 40 minutes.

B. Because over 60 million students across the world attended it.

C. Because the teacher was on the planet.

D. Because the lecturer was in space.

2.One of the experiments shows .

A. object motion under weight conditions

B. laws of physics under weightless conditions

C. laws of physics under weight conditions

D. how Newton’s Laws work on the earth

3.Which phrase can best replace the underlined words in the passage?

A. took a photo of water.

B. recorded moving pictures of water.

C. made a thin layer of water.

D. all the above.

4.Which of the following statements can be the best title of the passage?

A. Teaching from the Sky. B. Teaching on Physics.

C. Teaching Experiments. D. Teaching by an Astronaut.

Answer 1

1.D

2.B

3.C

4.A

【解析】

試題分析：本文講述的是宇航員們在天宮一號上面向全中國學生上了一堂為時40分鐘的別開生面的物理實驗課。

1. was a physical class. But it was nothing like previous ones — the class was “attended” by over 60 million students across China, and the teacher was not even on the planet: she was 340 kilometers above the earth.大意：這是一節(jié)物理課，但不像先前的那些一樣——這節(jié)課由全中國超過60萬的學生參加；物理老師甚至不在星球上：她遠在離地球340千米的外太空。由第一段沒提到A選項，排除A；這節(jié)物理課的參加者是中國的學生而不是全世界，排除B；老師在太空而不是星球上，故排除C，故選D.

2. show how Newton’s Law work in space, Wang and her fellow astronauts used simple items like balls and spinning tops.句意：為了在太空演示牛頓定律是怎樣發(fā)生的，王和她的宇航員同事們用了像氣球和抽陀螺這些簡單的物品；一般在太空中無論人或者物都是失重狀態(tài)，故排除A,C,D, 選B.

3. highlight of the lecture was when Wang made a film of water using a metal ring, something that only happens in zero gravity, where the surface tension(張力) of water is much higher than it is on the earth. She then took it a step further by pouring more water onto the film and turning it into a water ball, leaving the audience amazed by what they saw.句意：講課的亮點是用一個金屬環(huán)做一個水的薄膜，這種水薄膜只有在當水表面的張力比在地球上的高的失重的情況下產(chǎn)生。她接著倒了一些水在這個水薄膜上是薄膜成了一個水球，這讓觀眾們感到所看的都很神奇。A.給水照了一張相片B.記錄了水的動圖C.做了一個水薄膜D.以上皆是。A.B在文中并沒有提到，D選項錯誤，故選C。film除了有電影，膠片的意思還有薄膜等意義。

4. ; A比較有新意，比較的吸引讀者，故選A

考點：考查說明文閱讀。