完整7选5阅读理解20篇含答案

Passage 1

Billions of dollars have already been spent in planning how to set foot on Mars. So why do we

want to go there so badly? 1._______

Dutch organization Mars One wants to put people on Mars by 2027. The researchers say it is just

the next step in human curiosity（好奇心）. “Why did Columbus travel west? Why did Marco Polo

head east? 2._______”their website says. Mars One also thinks Mars exploration will improve the

development of recycling, solar energy(太阳能), food production and even medical technology.

Billionaire businessman Elon Musk runs a company in the United States. Its name is Space X.

3.________ Musk, who was born in South Africa but is now a

US-Canadian citizen, agrees that

curiosity plays a part. But his main reason for going to Mars is the survival(生存) of the human race.

To survive,we must learn to live somewhere other than Earth.

4.________ In 2011, along with Russia, China planned to send a

probe(探测器) to the planet.

Another probe will reach Mars by 2021.

US space agency NASA is also excited to get to Mars. 5._______ “Future exploration will find

mysteries of the universe(宇宙（证据）evidenceof life, answering one of the biggest ): Does life

exist beyond Earth?”the NASA website says. According to it, Mars and Earth have lots of things

alike. Exploring Mars also helps us learn more about our own planet's history and future.

A. Japanese also hopes to do a project on Mars.

B. Well, different organizations have different reasons.

C. Its final goal is to help humans live on other planets.

D. China has a long period dream of reaching Mars one day.

E.There may be new species on Mars which can surprise us a lot.

F. And NASA thinks it helps humans learn more about the universe.

G. Because that adventure makes humans find new places to explore.

Passage 2

An international freight railway network ( 货运铁路网) is connecting China to cities across

Europe. 1._______ 2,000 years ago, it took a year to get goods from China to Europe along the

ancient silk road. But today, goods from China can reach London by rail in just 14 days. It takes less

time than before.

Yiwu is a city that is located in China's Zhejiang Province. In Yiwu, it once took two hours by

the road to send European goods to the nearest seaport(海港). 2._______ But today, a new freight rail

link connects Yiwu to Europe along an ancient trade route.

Yiwu railway station is a big freight station now. 3._______ It's part of the multi-billion-US-dollar Belt and Road Initiative ( 倡议). It is set up in order to develop the international trade.

4._______ It spreads across 13,000 kilometers through France, Germany, Poland, Belarus,

Russia and Kazakhstan. Along the way, the train transfers ( 换乘) three times because of different

track gauges (轨距规) in China, Europe and Russia.