Question

adapted from the expansion of the united states from a short history of the world by h g wells
the region of the world that displayed the most immediate and striking results from the new inventions in transport was north america. politically, the united states embodied, and its constitution crystallized, the liberal ideas of the mid - eighteenth century. it dispensed with state - church or crown, it would have no titles, it protected property jealously as a method of freedom, and it gave nearly every adult male citizen a vote. its method of voting was crude, and therefore its political life soon fell, but that did not prevent the newly emancipated population from developing an energy, enterprise, and public spirit far beyond that of any other contemporary population.
then came that acceleration of locomotion. it is a curious thing that america, which owes most to this acceleration in locomotion, has felt it least. the united states has taken the railway, the river steamboat, the telegraph, and so forth as though they were a natural part of their growth. they were not. these things happened to come along just in time to save american unity. the united states of today was made first by the river steamboat, and then by the railway. without these things, the present united states would have been altogether impossible. the westward flow of population would have been far more sluggish. it might never have crossed the great central plains. the first state established beyond the river was the steamboat state of missouri in 1821. but the rest of the distance to the pacific was done in a few decades.
if we had the resources then, it would be interesting to show a map of north america year by year from 1600 onward, with little dots to represent hundreds of people, each dot a hundred, and
5
select all the correct answers.
which two statements express central ideas of the text?
□ old maps of the united states show very little migration beyond the east coast
□ the united states now includes many cities that have a population over 100,000
□ in the early years of the united states, most male citizens had the freedom to vote.
□ transportation and communication have served to unify united states citizens.
□ historically, innovations in travel led to westward expansion in the united states

Explanation:

• En el texto se menciona que el aceleración de la locomoción (transporte) y la adopción de la tecnología (telegrafo) ayudaron a unificar a los estadounidenses. Además, se dice que la expansión hacia el oeste fue posible gracias a la innovación en viajes (barcos de vapor, ferrocarriles).
• El primer enfoque se refiere a cómo la innovación en viajes (transporte) permitió la expansión hacia el oeste en los Estados Unidos. El segundo enfoque se centra en cómo la innovación en transporte y comunicación unificaron a los ciudadanos de los Estados Unidos.

Answer:

• Transportation and communication have served to unify United States citizens.
• Historically, innovations in travel led to westward expansion in the United States.