高中英语人教版（2019）必修第三册Unit 4 Space Exploration Discovering Useful Structures 课后练习

Two UK teachers, Richard Sears and Nick Gough, have overtaken the record for the longest journey made in a tuk-tuk (a three-wheeled vehicle).

They have travelled 37,500 kilometres and passed through 37 countries. They passed the record for a tuk-tuk journey of 37,410 km, set by Germans Susi Bemsel and Daniel Snaider in 2005, while crossing Northern Peru.

The pair, who left London in August, have travelled across deserts and forests. They have also survived close encounters (相遇) with elephants in Uganda and Botswana and an accident in Malaysia.

"Although there have been many testing times, we are happy to have experienced such wonderful places and to have met some truly great people," Nick said.

Talking about their motivation (动机), Richard said, "The world's leaders have made a promise to achieve primary education worldwide by 2015, but over 57 million primary-aged children are now still out of school. Many more are in school, though they still cannot get better learning opportunities."

To raise awareness (意识) of education projects in parts of the world where many kids have no chance to go to school, the pair planned this journey. They have been visiting schools along the route to get to know their needs and invite sponsors through their charity Tuk Tuk Travels.

Their choice of transport was designed to take advantage of its slow-paced, open and friendly nature to unlock different cultures and learn about and from their values and struggles (挣扎). The vehicle itself is eye-catching.

When their tuk-tuk broke down, not for the first time and just 70 kilometres short of the world record mark, the pair had to push the 800-kilogram vehicle for three days to make up the distance.

Having had their tuk-tuk fixed in Chepén, Peru, Richard and Nick are now back on the road. On reaching Chile, they will become the first people to drive a tuk-tuk around the world.

All through history, explorers have led the way for people to move into new places. Today, explorers are responsible (负责的) for is leading the way into space.

The first person in space was Yuri Gagarin from the Union of Soviet Socialist Republics (USSR). He (send) into space on April 12, 1961 aboardVostok 1. The Vostok 1 spaceship reached point some 300 kilometers high before it began to fall back to the earth. His journey only lasted 108 minutes, but that first trip into space marked the beginning of the Space Age.

The first woman in space was Valentina Tereshkova was also from the USSR. She circled the earth for two days and 22 hours aboard Vostok 6 in 1963. During this journey, it was reported Vostok 6 completely circled the earth 48 times!

Twelve people have (actual) walked on the moon. Neil Armstrong from the United States was the first man (set) foot on the moon. The members of the Apollo 17 space team visited the moon in 1972, and spent almost 3 days on the moon picking rocks and collecting soil from the surface of the moon. They brought these samples (样本) back earth for scientists around the world to study.

So far, only about 300 people from all around the world (go) into space, but the number will surely increase as scientists continue to explore space.