Ⅰ.语法填空
Tianwen 1, China's first 1.________ (independence) Mars mission, was launched on July 23 at Wenchang Space Launch Center in Hainan Province, thus 2.________ (begin) the nation's planetary (行星的) exploration program.
If everything goes according 3.________ schedule, the 5metricton spacecraft, consisting of an orbiter (轨道飞行器) and a landing capsule, will 4.________ (travel) more than 400 million kilometers before getting 5.________ (catch) in Mars' gravitational field. The mission's main goal is for the rover to make a soft landing on Martian soil to make scientific surveys.
The spacecraft has begun to conduct 6.________ (experiment) with the Mars Energetic Particle Analyzer, mounted (安置) on the orbiter, which has already transmitted data back to the ground control.
It is the first of the 13 scientific devices on the probe to 7.________ (start) operations and will be 8.________ longestworking device during the journey toward Mars' gravitational field.
On July 27, Tianwen 1 sent a photo back to the ground control of Earth and the moon that was 9.________ (take) by its optical navigation sensor when the craft was about 1.2 million kilometers from Earth. That photo is the first image from the spacecraft 10.________ has been made public.
