Now suppose【小题1】 it’s your turn to go to the moon, just like Edwin Aldrin and Neil Armstrong. It’s an important and exciting space travel,【小题2】 mission is to explore and gather information for the scientists on the earth.

Before you leave your lunar lander, don’t forget your equipment! Remember【小题3】 the moon has no atmosphere. An atmosphere is the envelope of gases 【小题4】 surrounds some planets. The earth’s atmosphere has oxygen, 【小题5】 we need to breathe. You will need your spacesuit and your oxygen tank, 【小题6】 will help you to survive on the moon’s surface.

Your spacesuit will keep your body safe on the moon, 【小题7】 the temperature can be extremely cold or extremely hot.

Now imagine【小题8】 you are walking on the moon’s surface. You will be fascinated by the view of the sky,     【小题9】is extremely different from that on the earth.

In the powdery, grayish moon dust, you will probably find some footprints 【小题10】Neil Armstrong and Edwin Aldrin left many years ago. That’s because there’s no wind or water on the moon to wash the footprints away. The moon dust stretches as far as you can see.

As you walk along, you suddenly realize【小题11】 you feel lighter. You can jump higher and throw farther. The reason 【小题12】 you can do jumping and throwing easily is 【小题13】   there is less gravity on the moon than there is on the earth.

Gravity is a force 【小题14】 pulls one object toward another object. Gravity makes you “stick” to the ground and makes your pencil fall to the floor 【小题15】 you drop it.

Zhai and his crewmates have spent 183 days in an orbit about 400 kilometers above the Earth since their Shenzhou ⅫⅠ spacecraft 【小题1】 (launch) on Oct 16. They were 【小题2】 second inhabitants of China’s permanent space station named Tiangong. During the Shenzhou ⅫⅠ mission, the astronauts 【小题3】 (success) carried out two spacewalks. Wang took part in the first spacewalk on Nov 7, 【小题4】 (become) the first female Chinese spacewalker. The crew members also 【小题5】 (carry) out two science lectures for Chinese students. In those lectures, which were livestreamed worldwide by China Media Group, the astronauts showed viewers 【小题6】 they live and work inside the space station and showed physical 【小题7】 (phenomenon) only possible in microgravity such as “disappearing buoyancy” and a “water ball”. In one experiment, Wang used a Bing Dwen Dwen toy, the popular mascot of the Beijing 2022 Olympic Winter Games, 【小题8】 (display) how objects fly in 【小题9】 (weight) environment. The Shenzhou ⅫⅠ’s space-based lessons marked the start of the Tiangong Class series. Several days before their return, Zhai and his crewmates recorded a video 【小题10】 they answered questions collected from students across China who were curious about their life and tasks.

Millions of Americans are mourning the death of astronaut John Glenn who passed away 【小题1】 (peaceful) on December 8,2016 at the age of 95. President Donald Trump said, “The US has lost a great pioneer in space travel.”

Glenn 【小题2】 (start) his flying career as a fighter pilot. In 1959 Glenn became one of the seven test pilots 【小题3】 (choose) to take part in the first space program of the US.

Glenn rose to fame in 1962 when he became the first American 【小题4】 (circle) the Earth in a spaceship. The journey made him 【小题5】 American hero. As a member of the Democratic Party, Glenn first won the election to the Senate (参议院) in 1974 and served for 24 years 【小题6】 January 3, 1999.

Glenn was known for his modesty, refusing to see 【小题7】 (he) as a hero. He preferred to focus on his work, saying, “The greatest people are those 【小题8】 devote themselves to something 【小题9】 (important) than merely their own self­interest.”

On October 29, 1998, when Glenn was 77, he returned to space and stayed there for nine days, thus 【小题10】 (set) the record of being the oldest person in space.