题型：语法填空（语篇） 题类：常考题 难易度：困难
广东省佛山市南海区2021届高三上学期英语摸底测试试卷
The successful launch of the probe(探测器) Tianwen Ⅰ on Thursday in Wenchang, South China's Hainan province, marks the (begin) of the country's efforts to find out more about Mars.
The probe will travel about seven months it reaches Mars, where it will place a rover(火星车) to wander around the surface. The rover, which has yet to be named, is l.85 meters tall and (weigh) about 240 kilograms. It has six wheels and four solar panels and will be able to move a speed of 200 meters per hour on Mars. The rover carries six
(science)instruments including a multispectral camera, subsurface penetrating radar and a meteorological measuring device. It will use the instruments (examine) Mars' surface compositions, geological structures, environment and possibly water.
The vehicle (expect) to operate for about three months on planet. It is of great significance to humankind's exploration of outer space. If the (high) autonomous machine works well, it will become the world's fifth operational Mars rover, (follow) the previous four from the United States.
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