Q8: Moving through Mountains

2018 Test A English · Question 8 of 57

Passage: Moving through Mountains

Moving through Mountains

An age-old proverb says that necessity is the mother of invention. (2) Centuries of human ingenuity in the face of obstacles prove this to be true. (3) For many years the Swiss Alps, a mountain range spanning southern Switzerland and northern Italy, were such an obstacle. (4) Roads and railways had to navigate around the mountains or through winding tunnels inside the mountains, making the transportation of people and goods difficult and time consuming. (5) In 2016 these burdens were eased with the completion of the Gotthard Base Tunnel. Construction of the high-speed railway tunnel began in 1996.

(7) The tunnel was created through the use of tunnel-boring machines, which are giant drills with a flat rotating head called a cutter head. (8) Each of the tunnel-boring machines used during the construction of the tunnel was about the length of four football fields arranged end-to-end. (9) During the seventeen-year construction period, 28 million tons of rock were removed, enough to rebuild the Great Pyramid of Giza five times. (10) This massive construction project is reported to have cost $12 billion. (11) After that, 4 million cubic meters of concrete, or enough concrete to build eighty-four Empire State Buildings, were used to construct and support the tunnel.

By 2020 the high-speed railway will carry more than 250 freight trains and 55 passenger trains a day, with most traveling at speeds of around 100 to 125 miles per hour. (13) It will be faster for people to travel between northern and southern Europe. (14) The travel time between the European cities of Zurich, Switzerland, and Milan, Italy, will be reduced by an hour. (15) Many European leaders compare the Gotthard Base Tunnel to the Channel Tunnel, a 33-mile underwater tunnel that connects the United Kingdom and France. (16) While there is no roadway in the Channel Tunnel, people can drive their cars onto special trains that will carry vehicles through to the other side.

Just as traffic congestion in major cities led to the construction of underground local transportation, natural formations, such as mountain ranges, have also sent people underground for faster, easier, and cheaper methods of transportation across larger areas. (18) There is renewed interest in constructing innovative methods of transportation that will help eliminate problems associated with traveling to and from certain areas.

Which transition phrase should be added to the beginning of sentence 18?

  • AAlthough the Gotthard Base Tunnel is mainly for freight trains
  • BWith the Gotthard Base Tunnel taking ten years to complete
  • CBecause of the successful completion of the Gotthard Base Tunnel
  • DAs the number of trains using the Gotthard Base Tunnel increases
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Correct answer: C

The answer is (C)

The question asks for a transition that bridges the ideas between sentences 17 and 18 and accurately presents the relationship.

Option C is correct because it bridges the sentences by referring to the Gotthard Base Tunnel as a solution to the problems described in sentence 17 and logically introducing sentence 18.

Option A is incorrect because the use of the word “although” and the mention of freight trains suggest that sentence will be about other types of vehicles that use the Gotthard Base Tunnel, and the transition phrase does not logically precede the sentence.

Option B is incorrect because the reference to the amount of time it took to build the tunnel does not help lead into the idea presented in sentence 18.

Option D is incorrect because it suggests that sentence 18 is related to the increasing number of trains using the Gotthard Base Tunnel, which is not accurate.